0001021635-22-000120 | 10-Q | XBRL Viewer

Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Significant Accounting Policies [Text Block]

Summary of Significant Accounting Policies

Accounting Records

The accounting records of OG&E are maintained in accordance with the Uniform System of Accounts prescribed by the FERC and adopted by the OCC and the APSC. Additionally, OG&E, as a regulated utility, is subject to accounting principles for certain types of rate-regulated activities, which provide that certain incurred costs that would otherwise be charged to expense can be deferred as regulatory assets, based on the expected recovery from customers in future rates. Likewise, certain actual or anticipated credits that would otherwise reduce expense can be deferred as regulatory liabilities, based on the expected flowback to customers in future rates. Management's expected recovery of deferred costs and flowback of deferred credits generally results from specific decisions by regulators granting such ratemaking treatment.

OG&E records certain incurred costs and obligations as regulatory assets or liabilities if, based on regulatory orders or other available evidence, it is probable that the costs or obligations will be included in amounts allowable for recovery or refund in future rates.

The following table presents a summary of OG&E's regulatory assets and liabilities.


	June 30,		December 31,
(In millions)	2022		2021
REGULATORY ASSETS
Current:
Oklahoma Winter Storm Uri costs (A)	$	750.5	$	—
Fuel clause under recoveries	271.7		151.9
SPP cost tracker under recovery (A)	8.1		9.3
Oklahoma Energy Efficiency Rider under recoveries (A)	—		11.7

Other (A)	10.7		9.7
Total current regulatory assets	$	1,041.0	$	182.6
Non-current:
Oklahoma Winter Storm Uri costs	$	—	$	747.9
Oklahoma deferred storm expenses	210.5		172.8
Benefit obligations regulatory asset	101.0		109.2
Arkansas Winter Storm Uri costs	83.9		88.9
Pension tracker	45.7		42.9
Sooner Dry Scrubbers	18.5		18.9
Arkansas deferred pension expenses	12.1		12.1
Unamortized loss on reacquired debt	8.5		8.9
COVID-19 impacts	8.3		8.2
Frontier Plant deferred expenses	6.0		6.7
Smart Grid	0.4		3.9
Other	10.2		10.4
Total non-current regulatory assets	$	505.1	$	1,230.8
REGULATORY LIABILITIES
Current:




Other (B)	$	4.6	$	2.5
Total current regulatory liabilities	$	4.6	$	2.5
Non-current:
Income taxes refundable to customers, net	$	918.5	$	930.7
Accrued removal obligations, net	283.7		296.8

Other	3.1		3.6
Total non-current regulatory liabilities	$	1,205.3	$	1,231.1

(A)Included in Other Current Assets in the condensed balance sheets. The Oklahoma Winter Storm Uri regulatory asset was reclassified as current at June 30, 2022, in anticipation of the securitization process being completed in July 2022 and OG&E receiving funds from the ODFA.

(B)Included in Other Current Liabilities in the condensed balance sheets.

Management continuously monitors the future recoverability of regulatory assets. When in management's judgment future recovery becomes impaired, the amount of the regulatory asset is adjusted, as appropriate. If OG&E were required to discontinue the application of accounting principles for certain types of rate-regulated activities for some or all of its operations, it could result in writing off the related regulatory assets or liabilities, which could have significant financial effects.

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

Organization

OGE Energy is a holding company with investments in energy and energy services providers offering physical delivery and related services for electricity in Oklahoma and western Arkansas and natural gas, crude oil and NGLs across the U.S. OGE Energy conducts these activities through two business segments: (i) electric utility and (ii) natural gas midstream operations. The accounts of OGE Energy and its wholly-owned subsidiaries, including OG&E, are included in OGE Energy's condensed consolidated financial statements. All intercompany transactions and balances are eliminated in such consolidation. On December 2, 2021, Energy Transfer and Enable closed their merger transaction. For periods prior to the closing date, OGE Energy accounted for its investment in Enable as an equity method investment and reported it within OGE Energy's natural gas midstream operations segment.

Electric Utility Operations. OGE Energy's electric utility operations are conducted through OG&E, which generates, transmits, distributes and sells electric energy in Oklahoma and western Arkansas. OG&E's rates are subject to regulation by the OCC, the APSC and the FERC. OG&E was incorporated in 1902 under the laws of the Oklahoma Territory and is a wholly-owned subsidiary of OGE Energy. OG&E is the largest electric utility in Oklahoma, and its franchised service territory includes Fort Smith, Arkansas and the surrounding communities. OG&E sold its retail natural gas business in 1928 and is no longer engaged in the natural gas distribution business.

Natural Gas Midstream Operations. As indicated above, on December 2, 2021, Enable and Energy Transfer closed their merger transaction. As a result of the merger, OGE Energy exchanged its common units of Enable for limited partner units of Energy Transfer. Subsequent to the merger, OGE Energy's natural gas midstream operations segment includes OGE Energy's investment in Energy Transfer's equity securities and legacy Enable seconded employee pension and postretirement costs. The investment in Energy Transfer's equity securities is held through wholly-owned subsidiaries and ultimately OGE Holdings. At June 30, 2022, OGE Energy owned 38,279,580 of Energy Transfer's limited partner units, which represented less than a two percent ownership based on the latest publicly available information filed by Energy Transfer. OGE Energy does not own general partner units in or have board representation at Energy Transfer. As such, OGE Energy accounts for its investment in Energy Transfer as an investment in equity securities, as further discussed below. OGE Energy intends to exit the midstream segment in a prudent manner.

Basis of Accounting [Text Block]

Basis of Presentation

The condensed financial statements included herein have been prepared by the Registrants, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations; however, the Registrants believe that the disclosures are adequate to prevent the information presented from being misleading.

In the opinion of management, all adjustments necessary to fairly present the financial position of the Registrants at June 30, 2022 and December 31, 2021, the results of the Registrants' operations for the three and six months ended June 30, 2022 and 2021 and the Registrants' cash flows for the six months ended June 30, 2022 and 2021 have been included and are of a normal, recurring nature except as otherwise disclosed. Management also has evaluated the impact of events occurring after June 30, 2022 up to the date of issuance of these condensed financial statements, and these statements contain all necessary adjustments and disclosures resulting from that evaluation.

Due to seasonal fluctuations and other factors, the Registrants' operating results for the three and six months ended June 30, 2022 are not necessarily indicative of the results that may be expected for the year ending December 31, 2022 or for any future period. The condensed financial statements and notes thereto should be read in conjunction with the audited financial statements and notes thereto included in the Registrants' 2021 Form 10-K.

Schedule of Regulatory Assets and Liabilities

Comprehensive Income (Loss) Note [Text Block]

Accumulated Other Comprehensive Income (Loss)

The following tables present changes in the components of accumulated other comprehensive income (loss) attributable to OGE Energy during the six months ended June 30, 2022 and 2021. All amounts below are presented net of tax.



(In millions)	Pension Plan and Restoration of Retirement Income Plan		Postretirement Benefit Plans			Total
Balance at December 31, 2021	$	(26.1)		$	1.3		$	(24.8)
Other comprehensive income (loss) before reclassifications	—			—			—
Amounts reclassified from accumulated other comprehensive income	0.6			—			0.6
Settlement cost	8.1			—			8.1

Balance at June 30, 2022	$	(17.4)		$	1.3		$	(16.1)



(In millions)	Pension Plan and Restoration of Retirement Income Plan		Postretirement Benefit Plans			Other Comprehensive Gain (Loss) from Unconsolidated Affiliates	Total
Balance at December 31, 2020	$	(34.1)		$	3.3		$	(1.3)	$	(32.1)
Other comprehensive income before reclassifications	—			—			0.3		0.3
Amounts reclassified from accumulated other comprehensive income (loss)	0.8			(0.6)			—		0.2
Settlement cost	3.7			—			—		3.7


Balance at June 30, 2021	$	(29.6)		$	2.7		$	(1.0)	$	(27.9)

The following table presents significant amounts reclassified out of accumulated other comprehensive income (loss) attributable to OGE Energy by the respective line items in net income during the three and six months ended June 30, 2022 and 2021.


Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)								Affected Line Item in OGE Energy's Statements of Income
	Three Months Ended				Six Months Ended
	June 30,				June 30,
(In millions)	2022		2021		2022		2021









Amortization of Pension Plan and Restoration of Retirement Income Plan items:
Actuarial losses	$	(0.4)	$	(0.4)	$	(0.8)	$	(1.2)	(A)
Prior service cost	—		—		(0.1)		—		(A)
Settlement cost	(0.9)		(1.2)		(10.5)		(5.3)		(A)
	(1.3)		(1.6)		(11.4)		(6.5)		Income Before Taxes
	(0.4)		(0.8)		(2.7)		(2.0)		Income Tax Expense
	$	(0.9)	$	(0.8)	$	(8.7)	$	(4.5)	Net Income

Amortization of postretirement benefit plans items:
Prior service credit	$	—	$	0.5	$	—	$	0.9	(A)
Actuarial losses	—		(0.1)		—		(0.1)		(A)

	—		0.4		—		0.8		Income Before Taxes
	—		0.1		—		0.2		Income Tax Expense
	$	—	$	0.3	$	—	$	0.6	Net Income







Total reclassifications for the period, net of tax	$	(0.9)	$	(0.5)	$	(8.7)	$	(3.9)	Net Income

(A)These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost (see Note 11 for additional information).

Allowance for Credit Losses

Allowance for Uncollectible Accounts Receivable

Customer balances are generally written off if not collected within six months after the final billing date. The allowance for uncollectible accounts receivable for OG&E is generally calculated by multiplying the last six months of electric revenue by the provision rate, which is based on a 12-month historical average of actual balances written off and is adjusted for current conditions and supportable forecasts as necessary. To the extent the historical collection rates, when incorporating

forecasted conditions, are not representative of future collections, there could be an effect on the amount of uncollectible expense recognized, such as in response to COVID-19 impacts. Also, a portion of the uncollectible provision related to fuel within the Oklahoma jurisdiction is being recovered through the fuel adjustment clause. The allowance for uncollectible accounts receivable is a reduction to Accounts Receivable in the condensed balance sheets and is included in Other Operation and Maintenance Expense in the condensed statements of income.

New business customers are required to provide a security deposit in the form of cash, bond or irrevocable letter of credit that is refunded when the account is closed. New residential customers whose outside credit scores indicate an elevated risk are required to provide a security deposit that is refunded based on customer protection rules defined by the OCC and the APSC. The payment behavior of all existing customers is continuously monitored, and, if the payment behavior indicates sufficient risk within the meaning of the applicable utility regulation, customers will be required to provide a security deposit.

Reclassifications [Text Block]

Reclassifications

Certain prior year amounts have been reclassified to conform to current year presentation.

Long-Term Debt

6 Months Ended

Jun. 30, 2022

Long-term Debt, Unclassified [Abstract]

Long-Term Debt

At June 30, 2022, the Registrants were in compliance with all of their debt agreements.

In May 2022, OGE Energy entered into a $100.0 million floating rate unsecured three-year credit agreement, of which $50.0 million is considered a revolving loan and $50.0 million is considered a term loan, and borrowed the full $50.0 million term loan, in order to preserve general financial flexibility within the company. Advances under this agreement were used to refinance existing indebtedness and for working capital and general corporate purposes of OGE Energy. The credit agreement, under certain circumstances, may be increased to a maximum commitment limit of $135.0 million and contains substantially the same covenants as OGE Energy's existing $550.0 million revolving credit agreement. The credit agreement is scheduled to terminate on May 24, 2025. At June 30, 2022, the weighted-average interest rate for the amount drawn on the term loan under this credit agreement was 2.17 percent during the quarter.

OG&E Industrial Authority Bonds

OG&E has tax-exempt pollution control bonds with optional redemption provisions that allow the holders to request repayment of the bonds on any business day. The following table presents information about these bonds, which can be tendered at the option of the holder during the next 12 months.


Series			Date Due	Amount
				(In millions)
0.11%	-	1.10%	Garfield Industrial Authority, January 1, 2025	$	47.0
0.11%	-	1.05%	Muskogee Industrial Authority, January 1, 2025	32.4
0.11%	-	1.10%	Muskogee Industrial Authority, June 1, 2027	56.0
Total (redeemable during next 12 months)				$	135.4

All of these bonds are subject to an optional tender at the request of the holders, at 100 percent of the principal amount, together with accrued and unpaid interest to the date of purchase. The bond holders, on any business day, can request repayment of the bond by delivering an irrevocable notice to the tender agent stating the principal amount of the bond, payment instructions for the purchase price and the business day the bond is to be purchased. The repayment option may only be exercised by the holder of a bond for the principal amount. When a tender notice has been received by the trustee, a third-party remarketing agent for the bonds will attempt to remarket any bonds tendered for purchase. This process occurs once per week. Since the original issuance of these series of bonds in 1995 and 1997, the remarketing agent has successfully remarketed all tendered bonds. If the remarketing agent is unable to remarket any such bonds, OG&E is obligated to repurchase such unremarketed bonds. As OG&E has both the intent and ability to refinance the bonds on a long-term basis and such ability is supported by an ability to consummate the refinancing, the bonds are classified as Long-Term Debt in the condensed balance sheets. OG&E believes that it has sufficient liquidity to meet these obligations.

Common Equity Automatic Dividend Reinvestment and Stock Purchase Plan (Details) - shares	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022
Automatic Dividend Reinvestment and Stock Purchase Plan [Member]
Stock Issued During Period, Shares, New Issues	0	0

Fair Value Measures and Disclosures (Policies)	6 Months Ended
Fair Value Measures and Disclosures (Policies)	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments, Policy [Policy Text Block]	The classification of the Registrants' fair value measurements requires judgment regarding the degree to which market data is observable or corroborated by observable market data. GAAP establishes a fair value hierarchy that prioritizes the inputs used to measure fair value based on observable and unobservable data. The hierarchy categorizes the inputs into three levels, with the highest priority given to quoted prices in active markets for identical unrestricted assets or liabilities (Level 1) and the lowest priority given to unobservable inputs (Level 3). Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The three levels defined in the fair value hierarchy are as follows: Level 1 inputs are quoted prices in active markets for identical unrestricted assets or liabilities that are accessible at the measurement date. Level 2 inputs are inputs other than quoted prices in active markets included within Level 1 that are either directly or indirectly observable at the reporting date for the asset or liability for substantially the full term of the asset or liability. Level 2 inputs include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active. Level 3 inputs are prices or valuation techniques for the asset or liability that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity). Unobservable inputs reflect the reporting entity's own assumptions about the assumptions that market participants would use in pricing the asset or liability (including assumptions about risk). OG&E had no financial instruments measured at fair value on a recurring basis at June 30, 2022 and December 31, 2021. The following table presents OGE Energy's financial instrument measured at fair value on a recurring basis and the carrying amount and fair value of

Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share-based Payment Arrangement, Cost by Plan [Table Text Block]

The following table presents the Registrants' pre-tax compensation expense and related income tax benefit for the three and six months ended June 30, 2022 and 2021 related to performance units and restricted stock units for the Registrants' employees.


	OGE Energy								OG&E
	Three Months Ended June 30,				Six Months Ended June 30,				Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2022		2021		2022		2021		2022		2021		2022		2021

Performance units - total shareholder return	$	1.8	$	1.9	$	3.6	$	3.9	$	0.5	$	0.5	$	1.1	$	0.9
Restricted stock units	0.5		0.4		1.0		0.9		0.2		0.1		0.4		0.1
Total compensation expense	$	2.3	$	2.3	$	4.6	$	4.8	$	0.7	$	0.6	$	1.5	$	1.0
Income tax benefit	$	0.6	$	0.6	$	1.2	$	1.2	$	0.2	$	0.2	$	0.4	$	0.3

Investment in Unconsolidated Affiliates Reconciliation of Equity in Earnings of Unconsolidated Affiliates (Details) - USD ($)
$ in Millions

3 Months Ended

6 Months Ended

Jun. 30, 2022

Mar. 31, 2022

Jun. 30, 2021

Mar. 31, 2021

Jun. 30, 2022

Jun. 30, 2021

Reconciliation of Equity in Earnings of Unconsolidated Affiliates [Line Items]

Proceeds from Equity Method Investment, Distribution

$ 13.3

$ 30.0

Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest

25.50%

Proportionate Unconsolidated Affiliate Net Income

$ 20.0

$ 59.5

Equity in Earnings Amortization of Basis Difference

^[1]

13.5

27.2

Income (Loss) from Equity Method Investments, Total

0.0

33.5

0.0

86.7

Net Income (Loss), Including Portion Attributable to Noncontrolling Interest

$ 100.7

$ 39.0

85.1

$ 11.2

$ 352.6

165.6

Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]

Reconciliation of Equity in Earnings of Unconsolidated Affiliates [Line Items]

Net Income (Loss), Including Portion Attributable to Noncontrolling Interest

$ 79.0

$ 234.0

[1]	Includes loss on dilution, net of proportional basis difference recognition.

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3000-108585

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=123454820&loc=SL4569616-111683

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(A))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

Reference 22: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 23: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599

Reference 24: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580

Reference 25: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 26: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iii)(A))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 27: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 28: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(B))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 29: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(ii))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 30: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

Reference 31: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4J
-URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4591551-111686

Reference 32: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4K
-URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4591552-111686

Reference 33: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794

+ Details

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) Parenthetical - $ / shares	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Statement of Stockholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.4100	$ 0.4025

Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Regulatory Assets and Liabilities [Table Text Block]

The following table presents a summary of OG&E's regulatory assets and liabilities.


	June 30,		December 31,
(In millions)	2022		2021
REGULATORY ASSETS
Current:
Oklahoma Winter Storm Uri costs (A)	$	750.5	$	—
Fuel clause under recoveries	271.7		151.9
SPP cost tracker under recovery (A)	8.1		9.3
Oklahoma Energy Efficiency Rider under recoveries (A)	—		11.7

Other (A)	10.7		9.7
Total current regulatory assets	$	1,041.0	$	182.6
Non-current:
Oklahoma Winter Storm Uri costs	$	—	$	747.9
Oklahoma deferred storm expenses	210.5		172.8
Benefit obligations regulatory asset	101.0		109.2
Arkansas Winter Storm Uri costs	83.9		88.9
Pension tracker	45.7		42.9
Sooner Dry Scrubbers	18.5		18.9
Arkansas deferred pension expenses	12.1		12.1
Unamortized loss on reacquired debt	8.5		8.9
COVID-19 impacts	8.3		8.2
Frontier Plant deferred expenses	6.0		6.7
Smart Grid	0.4		3.9
Other	10.2		10.4
Total non-current regulatory assets	$	505.1	$	1,230.8
REGULATORY LIABILITIES
Current:




Other (B)	$	4.6	$	2.5
Total current regulatory liabilities	$	4.6	$	2.5
Non-current:
Income taxes refundable to customers, net	$	918.5	$	930.7
Accrued removal obligations, net	283.7		296.8

Other	3.1		3.6
Total non-current regulatory liabilities	$	1,205.3	$	1,231.1

(B)Included in Other Current Liabilities in the condensed balance sheets.

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]



(In millions)	Pension Plan and Restoration of Retirement Income Plan		Postretirement Benefit Plans			Total
Balance at December 31, 2021	$	(26.1)		$	1.3		$	(24.8)
Other comprehensive income (loss) before reclassifications	—			—			—
Amounts reclassified from accumulated other comprehensive income	0.6			—			0.6
Settlement cost	8.1			—			8.1

Balance at June 30, 2022	$	(17.4)		$	1.3		$	(16.1)



(In millions)	Pension Plan and Restoration of Retirement Income Plan		Postretirement Benefit Plans			Other Comprehensive Gain (Loss) from Unconsolidated Affiliates	Total
Balance at December 31, 2020	$	(34.1)		$	3.3		$	(1.3)	$	(32.1)
Other comprehensive income before reclassifications	—			—			0.3		0.3
Amounts reclassified from accumulated other comprehensive income (loss)	0.8			(0.6)			—		0.2
Settlement cost	3.7			—			—		3.7


Balance at June 30, 2021	$	(29.6)		$	2.7		$	(1.0)	$	(27.9)

Schedule of Amounts Reclassified out of Accumulated Other Comprehensive Income [Table Text Block]


Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)								Affected Line Item in OGE Energy's Statements of Income
	Three Months Ended				Six Months Ended
	June 30,				June 30,
(In millions)	2022		2021		2022		2021









Amortization of Pension Plan and Restoration of Retirement Income Plan items:
Actuarial losses	$	(0.4)	$	(0.4)	$	(0.8)	$	(1.2)	(A)
Prior service cost	—		—		(0.1)		—		(A)
Settlement cost	(0.9)		(1.2)		(10.5)		(5.3)		(A)
	(1.3)		(1.6)		(11.4)		(6.5)		Income Before Taxes
	(0.4)		(0.8)		(2.7)		(2.0)		Income Tax Expense
	$	(0.9)	$	(0.8)	$	(8.7)	$	(4.5)	Net Income

Amortization of postretirement benefit plans items:
Prior service credit	$	—	$	0.5	$	—	$	0.9	(A)
Actuarial losses	—		(0.1)		—		(0.1)		(A)

	—		0.4		—		0.8		Income Before Taxes
	—		0.1		—		0.2		Income Tax Expense
	$	—	$	0.3	$	—	$	0.6	Net Income







Total reclassifications for the period, net of tax	$	(0.9)	$	(0.5)	$	(8.7)	$	(3.9)	Net Income

(A)These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost (see Note 11 for additional information).

Reconciliation of Equity in Earnings of Unconsolidated Affiliates [Table Text Block]

The following table presents a reconciliation of OGE Energy's equity in earnings of unconsolidated affiliates for the three and six months ended June 30, 2021.



(In millions)	Three Months Ended			Six Months Ended
Enable net income	$	79.0		$	234.0
OGE Energy's percent ownership at period end	25.5		%	25.5		%
OGE Energy's portion of Enable net income	$	20.0		$	59.5
Amortization of basis difference and dilution recognition (A)	13.5			27.2
Equity in earnings of unconsolidated affiliates	$	33.5		$	86.7

(A)Includes loss on dilution, net of proportional basis difference recognition.

Unrealized Gain (Loss) on Investments

Through the end of July 2022, OGE Energy has sold 73.3 million Energy Transfer limited partner units, resulting in pre-tax net proceeds of $812.6 million and a remaining ownership percentage of less than one percent based on the latest publicly available information filed by Energy Transfer.


(In millions)	Three Months Ended June 30, 2022		Six Months Ended June 30, 2022
Gain (loss) on equity securities	$	(39.6)	$	242.7
Net gain recognized on equity securities sold	6.7		175.7
Unrealized gain (loss) on equity securities held	$	(46.3)	$	67.0

Common Equity (Tables)

6 Months Ended

Jun. 30, 2022

Equity [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table presents the calculation of basic and diluted earnings per share for OGE Energy.


	Three Months Ended June 30,				Six Months Ended June 30,
(In millions, except per share data)	2022		2021		2022		2021
Net income	$	73.1	$	112.9	$	352.6	$	165.6
Average common shares outstanding:
Basic average common shares outstanding	200.2		200.2		200.2		200.1
Effect of dilutive securities:
Contingently issuable shares (performance and restricted stock units)	0.5		0.2		0.4		0.1
Diluted average common shares outstanding	200.7		200.4		200.6		200.2
Basic earnings per average common share	$	0.37	$	0.56	$	1.76	$	0.83
Diluted earnings per average common share	$	0.36	$	0.56	$	1.76	$	0.83
Anti-dilutive shares excluded from earnings per share calculation	—		—		—		—

Report of Business Segments (Tables)

6 Months Ended

Jun. 30, 2022

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The following tables present the results of OGE Energy's business segments for the three and six months ended June 30, 2022 and 2021.



Six Months Ended June 30, 2022	Electric Utility		Natural Gas Midstream Operations		Other Operations		Eliminations		Total
(In millions)
Operating revenues	$	1,393.0	$	—	$	—	$	—	$	1,393.0
Fuel, purchased power and direct transmission expense	649.0		—		—		—		649.0
Other operation and maintenance	233.8		1.2		(1.9)		—		233.1
Depreciation and amortization	219.0		—		—		—		219.0


Taxes other than income	50.1		0.1		2.0		—		52.2
Operating income (loss)	241.1		(1.3)		(0.1)		—		239.7
Gain on equity securities	—		242.7		—		—		242.7
Other income	0.4		21.1		—		(0.5)		21.0
Interest expense	78.0		—		5.0		(0.5)		82.5
Income tax expense (benefit)	23.8		51.3		(6.8)		—		68.3
Net income	$	139.7	$	211.2	$	1.7	$	—	$	352.6

Total assets	$	12,317.2	$	401.7	$	751.9	$	(632.8)	$	12,838.0



Six Months Ended June 30, 2021	Electric Utility		Natural Gas Midstream Operations		Other Operations		Eliminations		Total
(In millions)
Operating revenues	$	2,208.0	$	—	$	—	$	—	$	2,208.0
Fuel, purchased power and direct transmission expense	1,546.8		—		—		—		1,546.8
Other operation and maintenance	228.6		2.0		(2.1)		—		228.5
Depreciation and amortization	201.6		—		—		—		201.6
Taxes other than income	50.7		0.2		2.1		—		53.0
Operating income (loss)	180.3		(2.2)		—		—		178.1
Equity in earnings of unconsolidated affiliates	—		86.7		—		—		86.7
Other income (expense)	2.9		(0.7)		(0.6)		(0.8)		0.8
Interest expense	76.3		—		3.8		(0.8)		79.3
Income tax expense (benefit)	10.6		13.7		(3.6)		—		20.7
Net income (loss)	$	96.3	$	70.1	$	(0.8)	$	—	$	165.6
Investment in unconsolidated affiliates	$	—	$	425.4	$	—	$	—	$	425.4
Total assets	$	11,459.3	$	427.8	$	127.4	$	(115.0)	$	11,899.5

Summary of Significant Accounting Policies Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (16.1)	$ (27.9)	$ (24.8)	$ (32.1)
Other Comprehensive Income (Loss), before Reclassifications, before Tax		0.3
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0.0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0.6	0.2
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member]
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax		(1.0)		(1.3)
Other Comprehensive Income (Loss), before Reclassifications, before Tax		0.3
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		0.0
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member] \| Pension Plan [Member]
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax	(17.4)	(29.6)	(26.1)	(34.1)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	0.0	0.0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0.6	0.8
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member] \| Other Postretirement Benefits Plan [Member]
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax	1.3	2.7	$ 1.3	$ 3.3
Other Comprehensive Income (Loss), before Reclassifications, before Tax	0.0	0.0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0.0	(0.6)
Settlement Cost [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	8.1	3.7
Settlement Cost [Member] \| Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		0.0
Settlement Cost [Member] \| Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member] \| Pension Plan [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	8.1	3.7
Settlement Cost [Member] \| Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member] \| Other Postretirement Benefits Plan [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 0.0	$ 0.0

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References + Details

Revenue from Contracts with Customers (Tables)

6 Months Ended

Jun. 30, 2022

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue [Table Text Block]

The following table presents OG&E's revenues from contracts with customers disaggregated by customer classification. OG&E's operating revenues disaggregated by customer classification can be found in "OG&E (Electric Utility) Results of Operations" within "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations."



	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2022		2021		2022		2021
Residential	$	289.3	$	178.5	$	516.1	$	746.7
Commercial	193.4		108.3		321.5		415.8
Industrial	81.4		37.5		138.8		184.2
Oilfield	79.0		28.7		132.2		189.5
Public authorities and street light	71.1		37.0		119.1		160.1
System sales revenues	714.2		390.0		1,227.7		1,696.3
Provision for tax refund	(2.1)		—		(2.7)		—
Integrated market	43.0		128.3		65.8		430.4
Transmission	32.9		36.7		68.7		73.0
Other	3.0		9.5		9.6		(14.2)
Revenues from contracts with customers (A)	$	791.0	$	564.5	$	1,369.1	$	2,185.5

(A)In February 2021, Winter Storm Uri resulted in record winter peak demand for electricity and extremely high natural gas and purchased power prices in OG&E's service territory. Operating revenues for the six months ended June 30, 2021 significantly increased due to increased fuel, purchased power and direct transmission expenses, which are generally recoverable from customers, as a result of Winter Storm Uri. For further discussion, see Note 14 and "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operation."

Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Consolidation, Policy [Policy Text Block]

Organization

Basis of Accounting, Policy [Policy Text Block]

Basis of Presentation

Public Utilities, Policy [Policy Text Block]

Accounting Records

Fair Value of Financial Instruments, Policy [Policy Text Block]

The classification of the Registrants' fair value measurements requires judgment regarding the degree to which market data is observable or corroborated by observable market data. GAAP establishes a fair value hierarchy that prioritizes the inputs used to measure fair value based on observable and unobservable data. The hierarchy categorizes the inputs into three levels, with the highest priority given to quoted prices in active markets for identical unrestricted assets or liabilities (Level 1) and the lowest priority given to unobservable inputs (Level 3). Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The three levels defined in the fair value hierarchy are as follows:

Level 1 inputs are quoted prices in active markets for identical unrestricted assets or liabilities that are accessible at the measurement date.

Level 2 inputs are inputs other than quoted prices in active markets included within Level 1 that are either directly or indirectly observable at the reporting date for the asset or liability for substantially the full term of the asset or liability. Level 2 inputs include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

Level 3 inputs are prices or valuation techniques for the asset or liability that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity). Unobservable inputs reflect the reporting entity's own assumptions about the assumptions that market participants would use in pricing the asset or liability (including assumptions about risk).

Income Tax, Policy [Policy Text Block]

OGE Energy files consolidated income tax returns in the U.S. federal jurisdiction and various state jurisdictions.Income taxes are generally allocated to each company in the affiliated group, including OG&E, based on its stand-alone taxable income or loss. Federal investment tax credits previously claimed on electric utility property have been deferred and will be amortized to income over the life of the related property. Additionally, OG&E earned federal tax credits associated with production from its wind facilities through January 2022. Oklahoma production and investment state tax credits are also earned on investments in electric and solar generating facilities which further reduce OG&E's effective tax rate.

Earnings Per Share, Policy [Policy Text Block]

Earnings Per Share

Basic earnings per share is calculated by dividing net income attributable to OGE Energy by the weighted-average number of OGE Energy's common shares outstanding during the period. In the calculation of diluted earnings per share, weighted-average shares outstanding are increased for additional shares that would be outstanding if potentially dilutive securities were converted to common stock. Potentially dilutive securities for OGE Energy consist of performance units and restricted stock units.

Financing Receivable, Allowance for Credit Losses, Policy for Uncollectible Amounts

Allowance for Uncollectible Accounts Receivable

Equity Method Investments [Policy Text Block]

Investment in Unconsolidated Affiliates (Enable)

For more information concerning OGE Energy's former equity method investment in Enable, including the merger transaction with Energy Transfer and OGE Energy's previous accounting for its investment in Enable, see Notes 1 and 5 within "Item 8. Financial Statements and Supplementary Data" in OGE Energy's 2021 Form 10-K. Prior to December 2, 2021, OGE Energy's investment in Enable was considered to be a variable interest entity; however, OGE Energy was not considered the primary beneficiary of Enable. Under the equity method of accounting, the investment was adjusted each period for contributions made, distributions received and OGE Energy's share of the investee's comprehensive income as adjusted for basis differences. In this Form 10-Q, Enable activity is included for the relevant portion of OGE Energy's 2021 information presented through December 2, 2021.

OGE Energy considered distributions received from Enable which did not exceed cumulative equity in earnings subsequent to the date of investment to be a return on investment and were classified as operating activities in the statements of cash flows. OGE Energy considered distributions received from Enable in excess of cumulative equity in earnings subsequent to the date of investment to be a return of investment and are classified as investing activities in the statements of cash flows. Distributions received from Enable were $18.4 million and $36.7 million during the three and six months ended June 30, 2021, respectively.

The following table presents a reconciliation of OGE Energy's equity in earnings of unconsolidated affiliates for the three and six months ended June 30, 2021.



(In millions)	Three Months Ended			Six Months Ended
Enable net income	$	79.0		$	234.0
OGE Energy's percent ownership at period end	25.5		%	25.5		%
OGE Energy's portion of Enable net income	$	20.0		$	59.5
Amortization of basis difference and dilution recognition (A)	13.5			27.2
Equity in earnings of unconsolidated affiliates	$	33.5		$	86.7

(A)Includes loss on dilution, net of proportional basis difference recognition.

- Definition

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.

+ References + Details

Investment in Unconsolidated Affiliates Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Related Party Transaction [Line Items]
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party	$ 33.2	$ 33.4	$ 66.1	$ 69.1
Enable Midstream Partners [Member]
Related Party Transaction [Line Items]
Revenue from Related Parties		3.3		5.9
Operating Costs Charged [Member] \| Enable Midstream Partners [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party		0.1		0.2
Natural Gas Transportation [Member] \| Enable Midstream Partners [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Purchases from Related Party		9.3		14.0
Natural Gas Purchases [Member] \| Enable Midstream Partners [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Purchases from Related Party		$ (8.4)		$ (20.6)
Excluding Fuel Purchases [Member]
Related Party Transaction [Line Items]
Accounts receivable - unconsolidated affiliates					$ 0.3

Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 791.0	$ 564.5	$ 1,369.1	$ 2,185.5
Residential
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	289.3	178.5	516.1	746.7
Commercial
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	193.4	108.3	321.5	415.8
Industrial
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	81.4	37.5	138.8	184.2
Oilfield
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	79.0	28.7	132.2	189.5
Public authorities and street light
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	71.1	37.0	119.1	160.1
System sales revenues
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	714.2	390.0	1,227.7	1,696.3
Provision for tax refund
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	(2.1)	0.0	(2.7)	0.0
Integrated market
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	43.0	128.3	65.8	430.4
Transmission
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	32.9	36.7	68.7	73.0
Other
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	$ 3.0	$ 9.5	$ 9.6	$ (14.2)

Long-Term Debt (Details)
$ in Millions

6 Months Ended

Jun. 30, 2022

USD ($)

Debt Instrument [Line Items]

Percent of Principal Amount Subject to Optional Tender

100.00%

Line of Credit Facility, Maximum Borrowing Capacity

$ 1,150.0

Maturity

Dec. 17, 2026

^[1],[2]

Term Loan

Debt Instrument [Line Items]

Maturity

May 24, 2025

^[3]

Garfield Industrial Authority Bond [Member]

Debt Instrument [Line Items]

Debt Instrument, Maturity Date

Jan. 01, 2025

Muskogee Industrial Authority Bond Due 2025 [Member]

Debt Instrument [Line Items]

Debt Instrument, Maturity Date

Jan. 01, 2025

Muskogee Industrial Authority Bond Due 2027 [Member]

Debt Instrument [Line Items]

Debt Instrument, Maturity Date

Jun. 01, 2027

Series Due August 15, 2028 [Member]

Debt Instrument [Line Items]

Long term debt

$ 100.0

Line of Credit Facility, Maximum Borrowing Capacity

135.0

Series Due August 15, 2028 [Member] | Term Loan

Debt Instrument [Line Items]

Long term debt

50.0

Series Due August 15, 2028 [Member] | credit facility

Debt Instrument [Line Items]

Long term debt

50.0

Redeemable during the next 12 months

Debt Instrument [Line Items]

Long-term Debt

135.4

Redeemable during the next 12 months | Garfield Industrial Authority Bond [Member]

Debt Instrument [Line Items]

Long term debt

47.0

Redeemable during the next 12 months | Muskogee Industrial Authority Bond Due 2025 [Member]

Debt Instrument [Line Items]

Long term debt

32.4

Redeemable during the next 12 months | Muskogee Industrial Authority Bond Due 2027 [Member]

Debt Instrument [Line Items]

Long term debt

$ 56.0

Minimum [Member] | Redeemable during the next 12 months | Garfield Industrial Authority Bond [Member]

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

0.11%

Minimum [Member] | Redeemable during the next 12 months | Muskogee Industrial Authority Bond Due 2025 [Member]

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

0.11%

Minimum [Member] | Redeemable during the next 12 months | Muskogee Industrial Authority Bond Due 2027 [Member]

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

0.11%

Maximum [Member] | Redeemable during the next 12 months | Garfield Industrial Authority Bond [Member]

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

1.10%

Maximum [Member] | Redeemable during the next 12 months | Muskogee Industrial Authority Bond Due 2025 [Member]

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

1.05%

Maximum [Member] | Redeemable during the next 12 months | Muskogee Industrial Authority Bond Due 2027 [Member]

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

1.10%

[1]	OG&E has an intercompany borrowing agreement with OGE Energy whereby OG&E has access to up to $450.0 million of OGE Energy's revolving credit amount. This agreement has a termination date of December 17, 2026. At June 30, 2022, there were $409.0 million in intercompany borrowings under this agreement.
[2]	This bank facility is available to back up OG&E's commercial paper borrowings and to provide revolving credit borrowings. This bank facility can also be used as a letter of credit facility.
[3]	See Note 9 for further information about this revolving credit agreement.

Retirement Plans and Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2022

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

The following tables present the net periodic benefit cost components, before consideration of capitalized amounts, of OGE Energy's Pension Plan, Restoration of Retirement Income Plan and postretirement benefit plans that are included in the

condensed financial statements. Service cost is presented within Other Operation and Maintenance Expense, and the remaining net periodic benefit cost components as listed in the following tables are presented within Other Net Periodic Benefit Expense in the statements of income. OG&E recovers specific amounts of pension and postretirement medical costs in rates approved in its Oklahoma rate reviews. In accordance with approved orders, OG&E defers the difference between actual pension and postretirement medical expenses and the amount approved in its last Oklahoma rate review as a regulatory asset or regulatory liability. These amounts have been recorded in the Pension tracker in the regulatory assets and liabilities table in Note 1 and within Other Net Periodic Benefit Expense in the statements of income.


	Pension Plan								Restoration of Retirement Income Plan
	Three Months Ended				Six Months Ended				Three Months Ended				Six Months Ended
OGE Energy	June 30,				June 30,				June 30,				June 30,
(In millions)	2022		2021		2022		2021		2022		2021		2022		2021

Service cost	$	1.7	$	2.6	$	3.9	$	5.6	$	0.2	$	0.2	$	0.5	$	0.3
Interest cost	4.3		3.4		7.7		6.9		0.1		0.1		0.1		0.1
Expected return on plan assets	(6.2)		(8.7)		(13.0)		(17.1)		—		—		—		—
Amortization of net loss	2.3		1.9		4.2		4.7		0.1		—		0.1		0.1
Amortization of unrecognized prior service cost (A)	—		—		—		—		—		—		0.1		—
Settlement cost	2.8		5.3		16.0		31.7		0.2		0.4		0.2		0.4
Total net periodic benefit cost	4.9		4.5		18.8		31.8		0.6		0.7		1.0		0.9
Less: Amount paid by unconsolidated affiliates	—		(0.2)		—		(0.1)		—		—		—		—
Net periodic benefit cost	$	4.9	$	4.7	$	18.8	$	31.9	$	0.6	$	0.7	$	1.0	$	0.9

(A)Unamortized prior service cost is amortized on a straight-line basis over the average remaining service period to the first eligibility age of participants who are expected to receive a benefit and are active at the date of the plan amendment.


	Pension Plan								Restoration of Retirement Income Plan
	Three Months Ended				Six Months Ended				Three Months Ended				Six Months Ended
OG&E	June 30,				June 30,				June 30,				June 30,
(In millions)	2022		2021		2022		2021		2022		2021		2022		2021

Service cost	$	1.4	$	1.7	$	3.1	$	3.8	$	—	$	—	$	—	$	—
Interest cost	3.3		2.5		5.9		5.0		—		—		—		—
Expected return on plan assets	(4.7)		(6.2)		(10.0)		(12.3)		—		—		—		—
Amortization of net loss	1.9		1.5		3.5		3.5		—		0.1		—		0.1

Settlement cost	2.1		4.4		5.7		26.6		—		0.3		—		0.3
Total net periodic benefit cost	4.0		3.9		8.2		26.6		—		0.4		—		0.4

Plus: Amount allocated from OGE Energy	0.4		0.7		2.2		4.6		0.3		0.3		0.7		0.5
Net periodic benefit cost	$	4.4	$	4.6	$	10.4	$	31.2	$	0.3	$	0.7	$	0.7	$	0.9

In addition to the net periodic benefit cost amounts recognized, as presented in the tables above, for the Pension and Restoration of Retirement Income Plans for the three and six months ended June 30, 2022 and 2021, the Registrants recognized the following:


	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2022		2021		2022		2021
Increase of regulatory asset related to pension expense to maintain allowed recoverable amount in Oklahoma jurisdiction (A)	$	0.4	$	0.9	$	2.3	$	21.6
Deferral of pension expense related to pension settlement charges:
Oklahoma jurisdiction (A)	$	2.0	$	5.2	$	6.7	$	28.9
Arkansas jurisdiction (A)	$	0.2	$	0.5	$	0.6	$	2.7

(A) Included in the pension regulatory asset or liability in each jurisdiction, as indicated in the regulatory assets and liabilities table in Note 1.


	OGE Energy								OG&E
	Postretirement Benefit Plans								Postretirement Benefit Plans
	Three Months Ended				Six Months Ended				Three Months Ended				Six Months Ended
	June 30,				June 30,				June 30,				June 30,
(In millions)	2022		2021		2022		2021		2022		2021		2022		2021
Service cost	$	—	$	—	$	0.1	$	0.1	$	0.1	$	—	$	0.1	$	0.1
Interest cost	0.9		0.9		1.8		1.7		0.6		0.7		1.3		1.3
Expected return on plan assets	(0.5)		(0.5)		(0.9)		(1.0)		(0.4)		(0.5)		(0.8)		(0.9)

Amortization of net loss	0.2		0.7		0.7		1.4		0.3		0.7		0.8		1.4
Amortization of unrecognized prior service cost (A)	(0.9)		(1.7)		(1.9)		(3.4)		(0.9)		(1.2)		(1.8)		(2.5)


Total net periodic benefit cost	(0.3)		(0.6)		(0.2)		(1.2)		(0.3)		(0.3)		(0.4)		(0.6)
Less: Amount paid by unconsolidated affiliates (B)	—		(0.2)		—		(0.3)
Plus: Amount allocated from OGE Energy (B)									—		(0.1)		—		(0.2)
Net periodic benefit cost	$	(0.3)	$	(0.4)	$	(0.2)	$	(0.9)	$	(0.3)	$	(0.4)	$	(0.4)	$	(0.8)

(B)"Amount paid by unconsolidated affiliates" is only applicable to OGE Energy. "Amount allocated from OGE Energy" is only applicable to OG&E.

In addition to the net periodic benefit income amounts recognized, as presented in the table above, for the postretirement benefit plans for the three and six months ended June 30, 2022 and 2021, the Registrants recognized the following:


	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2022		2021		2022		2021
Increase (decrease) of regulatory liability related to postretirement expense to maintain allowed recoverable amount in Oklahoma jurisdiction (A)	$	0.1	$	0.1	$	(0.2)	$	0.2

(A) Included in the Pension tracker, as presented in the regulatory assets and liabilities table in Note 1.

Schedule of Capitalized Pension and Postretirement Cost [Table Text Block]


	OGE Energy								OG&E
	Three Months Ended				Six Months Ended				Three Months Ended				Six Months Ended
	June 30,				June 30,				June 30,				June 30,
(In millions)	2022		2021		2022		2021		2022		2021		2022		2021
Capitalized portion of net periodic pension benefit cost	$	0.7	$	0.8	$	1.5	$	1.6	$	0.5	$	0.7	$	1.2	$	1.4
Capitalized portion of net periodic postretirement benefit cost	$	—	$	—	$	0.1	$	0.1	$	0.1	$	0.1	$	0.1	$	0.1

Stock-Based Compensation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Stock-Based Compensation (Details) - USD ($) $ in Millions	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted			27,278
Stock-Based Compensation Activity
Income tax benefit	$ 0.2	$ 0.2	$ 0.4	$ 0.3
Restricted stock units
Stock-Based Compensation Activity
Compensation expense	0.2	0.1	0.4	0.1
Share-based Payment Arrangement [Member]
Stock-Based Compensation Activity
Compensation expense	0.7	0.6	1.5	1.0
Total Shareholder Return [Member] \| Performance Shares [Member]
Stock-Based Compensation Activity
Compensation expense	$ 0.5	$ 0.5	$ 1.1	$ 0.9

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) Parenthetical - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss	$ 2.2	$ 2.4
Cash and cash equivalents	$ 4.9	$ 0.0

Rate Matters and Regulation Rate Matters and Regulation (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Public Utilities, Requested Rate Increase (Decrease), Amount	$ 30.0
Estimated Refund to SPP	$ 13.0
Public Utilities, Requested Return on Equity, Percentage	10.20%
Plan Investments for Customers	$ 28.0
Common Equity Percentage which ROE is based	53.37%
Requested Recovery of Capital Investment	$ 1,200.0
Securitization Authorization Requested	760.0
Securitization Authorization Granted	$ 750.0
Public Utilities, Approved Return on Equity, Percentage	9.50%
Grid Enhancement
Public Utilities, Requested Rate Increase (Decrease), Amount	$ 6.0
Maximum [Member]
Lost Revenue on Plant Investments for Customers	48.3
Minimum [Member]
Lost Revenue on Plant Investments for Customers	35.6
In Favor Cooperatives
Plan Investments for Customers	11.7
In Favor Cooperatives \| Maximum [Member]
Lost Revenues on Plant Investments for Customers	5.9
In Favor Cooperatives \| Minimum [Member]
Lost Revenues on Plant Investments for Customers	3.5
Impact to Company [Member]
Estimated Refund to SPP	5.0
Customer Impact [Member]
Estimated Refund to SPP	$ 8.0

Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2022
Long-term Purchase Commitment [Line Items]
Commitments and Contingencies Disclosure [Text Block]	Commitments and Contingencies Except as set forth below, in Note 14 and under "Environmental Laws and Regulations" in Item 2 of Part I and in Item 1 of Part II of this Form 10-Q, the circumstances set forth in Notes 15 and 16 to the financial statements included in the Registrants' 2021 Form 10-K appropriately represent, in all material respects, the current status of the Registrants' material commitments and contingent liabilities. Environmental Laws and Regulations The activities of the Registrants are subject to numerous stringent and complex federal, state and local laws and regulations governing environmental protection. These laws and regulations can change, restrict or otherwise impact the Registrants' business activities in many ways, including the handling or disposal of waste material, planning for future construction activities to avoid or mitigate harm to threatened or endangered species and requiring the installation and operation of emissions or pollution control equipment. Failure to comply with these laws and regulations could result in the assessment of administrative, civil and criminal penalties, the imposition of remedial requirements and the issuance of orders enjoining future operations. Management believes that all of the Registrants' operations are in substantial compliance with current federal, state and local environmental standards. Environmental regulation can increase the cost of planning, design, initial installation and operation of OG&E's facilities. Management continues to evaluate its compliance with existing and proposed environmental legislation and regulations and implement appropriate environmental programs in a competitive market. Other In the normal course of business, the Registrants are confronted with issues or events that may result in a contingent liability. These generally relate to lawsuits or claims made by third parties, including governmental agencies. When appropriate, management consults with legal counsel and other experts to assess the claim. If, in management's opinion, the Registrants have incurred a probable loss as set forth by GAAP, an estimate is made of the loss, and the appropriate accounting entries are reflected in the condensed financial statements. At the present time, based on currently available information, the Registrants believe that any reasonably possible losses in excess of accrued amounts arising out of pending or threatened lawsuits or claims would not be quantitatively material to their condensed financial statements and would not have a material adverse effect on their financial position, results of operations or cash flows.

Retirement Plans and Postretirement Benefit Plans

6 Months Ended

Jun. 30, 2022

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

Retirement Plans and Postretirement Benefit Plans

In accordance with ASC Topic 715, "Compensation - Retirement Benefits," a one-time settlement charge is required to be recorded by an organization when lump sum payments or other settlements that relieve the organization from the responsibility for the pension benefit obligation during the plan year exceed the service cost and interest cost components of the organization's net periodic pension cost. During the six months ended June 30, 2022, the Registrants experienced an increase in both the number of employees electing to retire and the amount of lump sum payments paid to such employees upon retirement, which resulted in the Registrants recording pension plan settlement charges as presented in the Pension Plan net periodic benefit cost tables below. The pension settlement charges did not require a cash outlay by the Registrants and did not increase total pension expense over time, as the charge was an acceleration of costs that otherwise would be recognized as pension expense in future periods.

Net Periodic Benefit Cost


	Pension Plan								Restoration of Retirement Income Plan
	Three Months Ended				Six Months Ended				Three Months Ended				Six Months Ended
OGE Energy	June 30,				June 30,				June 30,				June 30,
(In millions)	2022		2021		2022		2021		2022		2021		2022		2021

Service cost	$	1.7	$	2.6	$	3.9	$	5.6	$	0.2	$	0.2	$	0.5	$	0.3
Interest cost	4.3		3.4		7.7		6.9		0.1		0.1		0.1		0.1
Expected return on plan assets	(6.2)		(8.7)		(13.0)		(17.1)		—		—		—		—
Amortization of net loss	2.3		1.9		4.2		4.7		0.1		—		0.1		0.1
Amortization of unrecognized prior service cost (A)	—		—		—		—		—		—		0.1		—
Settlement cost	2.8		5.3		16.0		31.7		0.2		0.4		0.2		0.4
Total net periodic benefit cost	4.9		4.5		18.8		31.8		0.6		0.7		1.0		0.9
Less: Amount paid by unconsolidated affiliates	—		(0.2)		—		(0.1)		—		—		—		—
Net periodic benefit cost	$	4.9	$	4.7	$	18.8	$	31.9	$	0.6	$	0.7	$	1.0	$	0.9


	Pension Plan								Restoration of Retirement Income Plan
	Three Months Ended				Six Months Ended				Three Months Ended				Six Months Ended
OG&E	June 30,				June 30,				June 30,				June 30,
(In millions)	2022		2021		2022		2021		2022		2021		2022		2021

Service cost	$	1.4	$	1.7	$	3.1	$	3.8	$	—	$	—	$	—	$	—
Interest cost	3.3		2.5		5.9		5.0		—		—		—		—
Expected return on plan assets	(4.7)		(6.2)		(10.0)		(12.3)		—		—		—		—
Amortization of net loss	1.9		1.5		3.5		3.5		—		0.1		—		0.1

Settlement cost	2.1		4.4		5.7		26.6		—		0.3		—		0.3
Total net periodic benefit cost	4.0		3.9		8.2		26.6		—		0.4		—		0.4

Plus: Amount allocated from OGE Energy	0.4		0.7		2.2		4.6		0.3		0.3		0.7		0.5
Net periodic benefit cost	$	4.4	$	4.6	$	10.4	$	31.2	$	0.3	$	0.7	$	0.7	$	0.9


	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2022		2021		2022		2021
Increase of regulatory asset related to pension expense to maintain allowed recoverable amount in Oklahoma jurisdiction (A)	$	0.4	$	0.9	$	2.3	$	21.6
Deferral of pension expense related to pension settlement charges:
Oklahoma jurisdiction (A)	$	2.0	$	5.2	$	6.7	$	28.9
Arkansas jurisdiction (A)	$	0.2	$	0.5	$	0.6	$	2.7

(A) Included in the pension regulatory asset or liability in each jurisdiction, as indicated in the regulatory assets and liabilities table in Note 1.


	OGE Energy								OG&E
	Postretirement Benefit Plans								Postretirement Benefit Plans
	Three Months Ended				Six Months Ended				Three Months Ended				Six Months Ended
	June 30,				June 30,				June 30,				June 30,
(In millions)	2022		2021		2022		2021		2022		2021		2022		2021
Service cost	$	—	$	—	$	0.1	$	0.1	$	0.1	$	—	$	0.1	$	0.1
Interest cost	0.9		0.9		1.8		1.7		0.6		0.7		1.3		1.3
Expected return on plan assets	(0.5)		(0.5)		(0.9)		(1.0)		(0.4)		(0.5)		(0.8)		(0.9)

Amortization of net loss	0.2		0.7		0.7		1.4		0.3		0.7		0.8		1.4
Amortization of unrecognized prior service cost (A)	(0.9)		(1.7)		(1.9)		(3.4)		(0.9)		(1.2)		(1.8)		(2.5)


Total net periodic benefit cost	(0.3)		(0.6)		(0.2)		(1.2)		(0.3)		(0.3)		(0.4)		(0.6)
Less: Amount paid by unconsolidated affiliates (B)	—		(0.2)		—		(0.3)
Plus: Amount allocated from OGE Energy (B)									—		(0.1)		—		(0.2)
Net periodic benefit cost	$	(0.3)	$	(0.4)	$	(0.2)	$	(0.9)	$	(0.3)	$	(0.4)	$	(0.4)	$	(0.8)

(B)"Amount paid by unconsolidated affiliates" is only applicable to OGE Energy. "Amount allocated from OGE Energy" is only applicable to OG&E.


	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2022		2021		2022		2021
Increase (decrease) of regulatory liability related to postretirement expense to maintain allowed recoverable amount in Oklahoma jurisdiction (A)	$	0.1	$	0.1	$	(0.2)	$	0.2

(A) Included in the Pension tracker, as presented in the regulatory assets and liabilities table in Note 1.


	OGE Energy								OG&E
	Three Months Ended				Six Months Ended				Three Months Ended				Six Months Ended
	June 30,				June 30,				June 30,				June 30,
(In millions)	2022		2021		2022		2021		2022		2021		2022		2021
Capitalized portion of net periodic pension benefit cost	$	0.7	$	0.8	$	1.5	$	1.6	$	0.5	$	0.7	$	1.2	$	1.4
Capitalized portion of net periodic postretirement benefit cost	$	—	$	—	$	0.1	$	0.1	$	0.1	$	0.1	$	0.1	$	0.1

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section S99
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=21916913&loc=d3e273930-122802

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (o)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (p)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 60
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39689-114964

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(03)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (q)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (r)(1)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iii)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (l)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (r)(2)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

+ Details

Retirement Plans and Postretirement Benefit Plans (Details) - USD ($)
$ in Millions

3 Months Ended

6 Months Ended

Jun. 30, 2022

Jun. 30, 2021

Jun. 30, 2022

Jun. 30, 2021

Pension Plan [Member]

Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]

Service cost

$ 1.4

$ 1.7

$ 3.1

$ 3.8

Interest cost

3.3

2.5

5.9

5.0

Expected return on plan assets

(4.7)

(6.2)

(10.0)

(12.3)

Amortization of net loss

1.9

1.5

3.5

Defined Benefit Plan, Amortization of Prior Service Cost (Credit)

0.0

^[1]

0.0

^[1]

Settlement cost

^[2]

0.2

0.5

0.6

2.7

Total net periodic benefit cost

4.0

3.9

8.2

26.6

Amount Attributable to Unconsolidated Affiliates

0.0

(0.2)

0.0

(0.1)

Net periodic benefit cost

4.4

4.6

10.4

31.2

Additional Pension Expense to Meet State Requirements

^[2]

0.4

0.9

2.3

21.6

Capitalized portion of net periodic pension benefit cost

0.5

0.7

1.2

1.4

Amount Attributable to Parent

0.4

0.7

2.2

4.6

Other Pension Plan [Member]

Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]

Service cost

0.0

Interest cost

0.0

Expected return on plan assets

0.0

Amortization of net loss

0.0

0.1

0.0

0.1

Defined Benefit Plan, Amortization of Prior Service Cost (Credit)

0.0

0.1

^[1]

0.0

^[1]

Settlement cost

0.0

0.3

0.0

0.3

Total net periodic benefit cost

0.0

0.4

0.0

0.4

Amount Attributable to Unconsolidated Affiliates

0.0

Net periodic benefit cost

0.3

0.7

0.9

Amount Attributable to Parent

0.3

0.7

0.5

Postretirement Benefit Plan [Member]

Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]

Service cost

0.1

0.0

0.1

Interest cost

0.6

0.7

1.3

Expected return on plan assets

(0.4)

(0.5)

(0.8)

(0.9)

Amortization of net loss

0.3

0.7

0.8

1.4

Defined Benefit Plan, Amortization of Prior Service Cost (Credit)

(0.9)

(1.2)

(1.8)

^[1]

(2.5)

^[1]

Amount Attributable to Unconsolidated Affiliates

0.0

(0.2)

0.0

^[3]

(0.3)

^[3]

Additional Pension Expense to Meet State Requirements

^[4]

0.1

(0.2)

0.2

Capitalized portion of net periodic pension benefit cost

0.1

Amount Attributable to Parent

0.0

(0.1)

0.0

^[3]

(0.2)

^[3]

Postretirement Benefit Costs

Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]

Total net periodic benefit cost

(0.3)

(0.4)

(0.6)

Net periodic benefit cost

$ (0.3)

$ (0.4)

$ (0.8)

[1]	Unamortized prior service cost is amortized on a straight-line basis over the average remaining service period to the first eligibility age of participants who are expected to receive a benefit and are active at the date of the plan amendment.
[2]	Included in the pension regulatory asset or liability in each jurisdiction, as indicated in the regulatory assets and liabilities table in Note 1.
[3]	"Amount paid by unconsolidated affiliates" is only applicable to OGE Energy. "Amount allocated from OGE Energy" is only applicable to OG&E.
[4]	Included in the Pension tracker, as presented in the regulatory assets and liabilities table in Note 1.

Report of Business Segments (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Operating revenues	$ 803.7		$ 577.4		$ 1,393.0	$ 2,208.0
Fuel, purchased power and direct transmission expense	393.3		200.0		649.0	1,546.8
Other operation and maintenance	118.1		119.2		233.8	228.6
Depreciation and amortization	111.6		102.9		219.0	201.6
Taxes other than income	24.1		25.8		50.1	50.7
OPERATING INCOME	157.2		131.2		241.1	180.3
Income (Loss) from Equity Method Investments	0.0		33.5		0.0	86.7
Other income (expense)	11.7		(0.1)		21.0	0.8
Interest expense	39.8		37.9		78.0	76.3
Income tax expense (benefit)	16.4		10.1		23.8	10.6
Net income (loss)	100.7	$ 39.0	85.1	$ 11.2	352.6	165.6
Investment in unconsolidated affiliates			425.4			425.4
Total assets	12,317.2		11,899.5		12,317.2	11,899.5	$ 11,688.0
Gain (Loss) on Disposition of Assets						86.7
Equity Securities, FV-NI, Gain (Loss)	(39.6)		0.0		242.7	0.0
Electric Utility [Member]
Segment Reporting Information [Line Items]
Operating revenues	803.7		577.4		1,393.0	2,208.0
Fuel, purchased power and direct transmission expense	393.3		200.0		649.0	1,546.8
Other operation and maintenance	118.3		118.3		233.8	228.6
Depreciation and amortization	111.6		102.9		219.0	201.6
Taxes other than income	23.3		25.0		50.1	50.7
OPERATING INCOME	157.2		131.2		241.1	180.3
Income (Loss) from Equity Method Investments			0.0			0.0
Other income (expense)	(0.3)		1.2		0.4	2.9
Interest expense	39.8		37.9		78.0	76.3
Income tax expense (benefit)	16.4		9.4		23.8	10.6
Net income (loss)	100.7		85.1		139.7	96.3
Investment in unconsolidated affiliates			0.0			0.0
Total assets	12,317.2		11,459.3		12,317.2	11,459.3
Equity Securities, FV-NI, Gain (Loss)	0.0				0.0
Natural Gas Midstream Operations [Member]
Segment Reporting Information [Line Items]
Operating revenues	0.0		0.0		0.0	0.0
Fuel, purchased power and direct transmission expense	0.0		0.0		0.0	0.0
Other operation and maintenance	0.5		1.6		1.2	2.0
Depreciation and amortization	0.0		0.0		0.0	0.0
Taxes other than income	0.1		0.1		0.1	0.2
OPERATING INCOME	(0.6)		(1.7)		(1.3)	(2.2)
Income (Loss) from Equity Method Investments			33.5			86.7
Other income (expense)	12.4		(0.2)		21.1	(0.7)
Interest expense	0.0		0.0		0.0	0.0
Income tax expense (benefit)	(8.9)		(0.6)		51.3	13.7
Net income (loss)	(18.9)		32.2		211.2	70.1
Investment in unconsolidated affiliates			425.4			425.4
Total assets	401.7		427.8		401.7	427.8
Equity Securities, FV-NI, Gain (Loss)	(39.6)				242.7
Other Operations [Member]
Segment Reporting Information [Line Items]
Operating revenues	0.0		0.0		0.0	0.0
Fuel, purchased power and direct transmission expense	0.0		0.0		0.0	0.0
Other operation and maintenance	(0.7)		(0.7)		(1.9)	(2.1)
Depreciation and amortization	0.0		0.0		0.0	0.0
Taxes other than income	0.7		0.7		2.0	2.1
OPERATING INCOME	0.0		0.0		(0.1)	0.0
Income (Loss) from Equity Method Investments			0.0			0.0
Other income (expense)	0.0		(0.5)		0.0	(0.6)
Interest expense	3.0		2.6		5.0	3.8
Income tax expense (benefit)	5.7		1.3		(6.8)	(3.6)
Net income (loss)	(8.7)		(4.4)		1.7	(0.8)
Investment in unconsolidated affiliates			0.0			0.0
Total assets	751.9		127.4		751.9	127.4
Equity Securities, FV-NI, Gain (Loss)	0.0				0.0
Eliminations [Member]
Segment Reporting Information [Line Items]
Operating revenues	0.0		0.0		0.0	0.0
Fuel, purchased power and direct transmission expense	0.0		0.0		0.0	0.0
Other operation and maintenance	0.0		0.0		0.0	0.0
Depreciation and amortization	0.0		0.0		0.0	0.0
Taxes other than income	0.0		0.0		0.0	0.0
OPERATING INCOME	0.0		0.0		0.0	0.0
Income (Loss) from Equity Method Investments			0.0			0.0
Other income (expense)	(0.4)		(0.6)		(0.5)	(0.8)
Interest expense	(0.4)		(0.6)		(0.5)	(0.8)
Income tax expense (benefit)	0.0		0.0		0.0	0.0
Net income (loss)	0.0		0.0		0.0	0.0
Investment in unconsolidated affiliates			0.0			0.0
Total assets	(632.8)		$ (115.0)		(632.8)	$ (115.0)
Equity Securities, FV-NI, Gain (Loss)	$ 0.0				$ 0.0

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Millions	Total	Common Stock	Treasury Stock [Member]	Premium on Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Changes in Stockholders' Equity
Balance	$ 3,975.6	$ 100.9	$ (5.3)	$ 938.6	$ 2,936.1	$ (32.1)
Common Stock, Shares, Outstanding		40,400
Treasury Stock, Common, Shares			100
Net Income (Loss), Including portion attributable to noncontrolling interest, Number of Shares		0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 11.2	$ 0.0	$ 0.0	0.0	11.2	0.0
Proceeds from Contributed Capital, Shares	0
Other Comprehensive Income (Loss), Net of Tax, Number of Shares		0	0
Dividends, Common Stock, Cash, Number of Shares		0	0
Other comprehensive income, net of tax	$ 3.5	$ 0.0	$ 0.0	0.0	0.0	3.5
Dividends, Common Stock, Cash	(81.7)	$ 0.0	$ 0.0	0.0	(81.7)	0.0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Number of Shares		0	(100)
Stock-based compensation	0.5	$ 0.0	$ 5.2	0.5	0.0	0.0
Proceeds from Contributed Capital	530.0	0.0		530.0	0.0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	165.6				165.6
Other comprehensive income, net of tax	$ 0.0
Common Stock, Dividends, Per Share, Declared	$ 0.4025
Balance	$ 4,517.3	$ 100.9	$ (0.1)	1,469.1	2,947.3	(28.6)
Common Stock, Shares, Outstanding		40,400
Treasury Stock, Common, Shares			0
Net Income (Loss), Including portion attributable to noncontrolling interest, Number of Shares		0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	85.1	$ 0.0	$ 0.0	0.0	85.1	0.0
Other Comprehensive Income (Loss), Net of Tax, Number of Shares		0	0
Dividends, Common Stock, Cash, Number of Shares		0	0
Other comprehensive income, net of tax	0.0	$ 0.0	$ 0.0	0.0	0.0	0.7
Dividends, Common Stock, Cash	45.0	$ 0.0	$ 0.0	0.0	45.0	0.0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Number of Shares		0	0
Stock-based compensation	0.6	$ 0.0	$ 0.0	0.6	0.0	0.0
Balance	4,558.0	$ 100.9	$ (0.1)	1,469.7	2,987.4	(27.9)
Common Stock, Shares, Outstanding		40,400
Treasury Stock, Common, Shares			0
Balance	4,602.8	$ 100.9	$ (0.1)	1,470.8	3,031.1	(24.8)
Common Stock, Shares, Outstanding		40,400
Treasury Stock, Common, Shares			0
Net Income (Loss), Including portion attributable to noncontrolling interest, Number of Shares		0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	39.0	$ 0.0	$ 0.0	0.0	39.0	0.0
Other Comprehensive Income (Loss), Net of Tax, Number of Shares		0	0
Dividends, Common Stock, Cash, Number of Shares		0	0
Other comprehensive income, net of tax	7.8	$ 0.0	$ 0.0	0.0	0.0	7.8
Dividends, Common Stock, Cash	(82.3)	$ 0.0	$ 0.0	0.0	(82.3)	0.0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Number of Shares		0	0
Stock-based compensation	0.8	$ 0.0	$ 0.0	0.8	0.0	0.0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	352.6				352.6
Other comprehensive income, net of tax	$ 0.0
Common Stock, Dividends, Per Share, Declared	$ 0.4100
Balance	$ 4,642.6	$ 100.9	$ (0.1)	1,471.6	3,070.1	(17.0)
Common Stock, Shares, Outstanding		40,400
Treasury Stock, Common, Shares			0
Net Income (Loss), Including portion attributable to noncontrolling interest, Number of Shares		0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	100.7	$ 0.0	$ 0.0	0.0	100.7	0.0
Other Comprehensive Income (Loss), Net of Tax, Number of Shares		0	0
Dividends, Common Stock, Cash, Number of Shares		0	0
Other comprehensive income, net of tax	0.0	$ 0.0	$ 0.0	0.0	0.0	0.9
Dividends, Common Stock, Cash	(82.1)	$ 0.0	$ 0.0	0.0	(82.1)	0.0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Number of Shares		0	0
Stock-based compensation	0.7	$ 0.0	$ 0.0	0.7	0.0	0.0
Balance	$ 4,744.0	$ 100.9	$ (0.1)	$ 1,472.3	$ 3,170.8	$ (16.1)
Common Stock, Shares, Outstanding		40,400
Treasury Stock, Common, Shares			0

Investment in Unconsolidated Affiliates

6 Months Ended

Jun. 30, 2022

Equity Method Investments and Joint Ventures Disclosure [Text Block]

Investment in Equity Securities of Energy Transfer

OGE Energy accounts for its investment in Energy Transfer's equity securities as an equity investment with a readily determinable fair value under ASC 321, "Investments – Equity Securities." OGE Energy presents the Energy Transfer equity securities at fair value in its balance sheet. OGE Energy presents realized and unrealized gains and losses of the equity securities, as well as dividend income from the investment, within the Other Income (Expense) section in its statement of income, as appropriate. For the three and six months ended June 30, 2022, OGE Energy recognized a pre-tax unrealized loss of $46.3 million and a pre-tax unrealized gain of $67.0 million, respectively, related to its investment in Energy Transfer's equity securities, as detailed below. As previously disclosed, OGE Energy intends to become a pure play electric utility by exiting its investment in Energy Transfer's equity securities, and unit sales commenced in April 2022. Through the end of July 2022, OGE Energy has sold 73.3 million Energy Transfer limited partner units, resulting in pre-tax net proceeds of $812.6 million and a remaining ownership percentage of less than one percent based on the latest publicly available information filed by Energy Transfer.


(In millions)	Three Months Ended June 30, 2022		Six Months Ended June 30, 2022
Gain (loss) on equity securities	$	(39.6)	$	242.7
Net gain recognized on equity securities sold	6.7		175.7
Unrealized gain (loss) on equity securities held	$	(46.3)	$	67.0

Distributions received from Energy Transfer were $13.3 million and $30.0 million during the three and six months ended June 30, 2022, respectively, which are presented within Other Income in OGE Energy's 2022 condensed consolidated income statement. On July 26, 2022, Energy Transfer announced a 15 percent increase in its quarterly cash distribution, resulting in a distribution of $0.23 per unit on its outstanding common units that will be paid on August 19, 2022 to unitholders of record as of the close of business on August 8, 2022.

Investment in Unconsolidated Affiliates (Enable)

The following table presents a reconciliation of OGE Energy's equity in earnings of unconsolidated affiliates for the three and six months ended June 30, 2021.



(In millions)	Three Months Ended			Six Months Ended
Enable net income	$	79.0		$	234.0
OGE Energy's percent ownership at period end	25.5		%	25.5		%
OGE Energy's portion of Enable net income	$	20.0		$	59.5
Amortization of basis difference and dilution recognition (A)	13.5			27.2
Equity in earnings of unconsolidated affiliates	$	33.5		$	86.7

(A)Includes loss on dilution, net of proportional basis difference recognition.

Related Party Transactions

OGE Energy charges operating costs to OG&E, and prior to December 2, 2021, charged operating costs to Enable, based on several factors. Operating costs directly related to OG&E and/or Enable are assigned as such. Operating costs incurred for the benefit of OG&E are allocated either as overhead based primarily on labor costs or using the "Distrigas" method, which is a three-factor formula that uses an equal weighting of payroll, net operating revenues and gross property, plant and equipment.

OGE Energy and OG&E

OGE Energy charged operating costs to OG&E of $33.2 million and $33.4 million during the three months ended June 30, 2022 and 2021, respectively, and $66.1 million and $69.1 million during the six months ended June 30, 2022 and 2021, respectively.

OGE Energy and Enable

Prior to December 2, 2021, OGE Energy and Enable were parties to several agreements whereby OGE Energy provided specified support services to Enable, such as certain information technology, payroll and benefits administration. Under these agreements, OGE Energy charged operating costs to Enable of $0.1 million and $0.2 million during the three and six months ended June 30, 2021, respectively. OGE Energy had accounts receivable from Enable for amounts billed for support services of $0.3 million as of December 31, 2021, which is included in Accounts Receivable in OGE Energy's 2021 consolidated balance sheet.

OG&E and Enable

Enable provided gas transportation services to OG&E pursuant to agreements that granted Enable the responsibility of delivering natural gas to OG&E's generating facilities and performing an imbalance service. With this imbalance service, in accordance with the cash-out provision of the contract, OG&E compensated Enable when Enable's deliveries exceeded OG&E's pipeline nominations. Enable compensated OG&E when OG&E's pipeline nominations exceeded Enable's deliveries. Upon the

closing of the merger between Enable and Energy Transfer, these contracts were assumed by Energy Transfer. The following table presents summarized related party transactions between OG&E and Enable during the three and six months ended June 30, 2021.



(In millions)	Three Months Ended		Six Months Ended
Operating revenues:
Electricity to power electric compression assets	$	3.3	$	5.9
Fuel, purchased power and direct transmission expense:
Natural gas transportation services	$	9.3	$	14.0

Natural gas purchases (sales)	$	(8.4)	$	(20.6)

Accounting Pronouncements	6 Months Ended
Accounting Pronouncements	Jun. 30, 2022
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	Accounting PronouncementsIn November 2021, the Financial Accounting Standards Board issued ASU 2021-10, "Government Assistance (Topic 832) Disclosures by Business Entities about Government Assistance." This standard requires additional annual disclosures when a business receives government assistance and uses a grant or contribution accounting model by analogy to other accounting guidance such as the grant model under International Accounting Standards 20, "Accounting for Government Grants and Disclosures of Government Assistance" and GAAP ASC 958-605, "Not-for-Profit Entities - Revenue Recognition." The standard was effective January 1, 2022, and prospective or retrospective adoption is allowed. The Registrants are currently assessing the impact, if any, of this standard on their annual financial statements and disclosures.

- Definition

The entire disclosure for change in accounting principle. Includes, but is not limited to, nature, reason, and method of adopting amendment to accounting standards or other change in accounting principle.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 65
-Paragraph 1
-Subparagraph (g)(2)
-URI http://asc.fasb.org/extlink&oid=123338486&loc=SL49131195-203048

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-URI http://asc.fasb.org/topic&trid=2122394

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 105
-SubTopic 10
-Section 65
-Paragraph 6
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 65
-Paragraph 1
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=123338486&loc=SL49131195-203048

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 65
-Paragraph 8
-Subparagraph (e)(2)
-URI http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section S99
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=122038215&loc=SL108384541-122693

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 20
-Section 65
-Paragraph 2
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=124402435&loc=SL124402458-218513

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 65
-Paragraph 6
-Subparagraph (e)(2)
-URI http://asc.fasb.org/extlink&oid=123597120&loc=SL121967933-165497

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 65
-Paragraph 1
-Subparagraph (i)(2)
-URI http://asc.fasb.org/extlink&oid=123338486&loc=SL49131195-203048

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 65
-Paragraph 6
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=123597120&loc=SL121967933-165497

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 65
-Paragraph 2
-Subparagraph (g)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 65
-Paragraph 2
-Subparagraph (g)(2)(ii)
-URI http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 65
-Paragraph 2
-Subparagraph (g)(2)(i)
-URI http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 65
-Paragraph 8
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 65
-Paragraph 15
-Subparagraph (g)(1)
-URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 20
-Section 65
-Paragraph 2
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=124402435&loc=SL124402458-218513

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 65
-Paragraph 1
-Subparagraph (j)
-URI http://asc.fasb.org/extlink&oid=123338486&loc=SL49131195-203048

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 65
-Paragraph 2
-Subparagraph (g)(2)(iv)
-URI http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 65
-Paragraph 2
-Subparagraph (f)(1)
-URI http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079

Reference 22: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 11.M.Q2)
-URI http://asc.fasb.org/extlink&oid=122038215&loc=d3e31137-122693

Reference 23: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 65
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079

Reference 24: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794

Reference 25: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 65
-Paragraph 2
-Subparagraph (f)(3)
-URI http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079

Reference 26: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 65
-Paragraph 6
-Subparagraph (e)(3)
-URI http://asc.fasb.org/extlink&oid=123597120&loc=SL121967933-165497

Reference 27: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 10
-Section 65
-Paragraph 4
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437

Reference 28: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794

Reference 29: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 65
-Paragraph 2
-Subparagraph (h)(2)
-URI http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641

Reference 30: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 10
-Section 65
-Paragraph 4
-Subparagraph (e)(2)
-URI http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437

Reference 31: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794

Reference 32: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 848
-SubTopic 10
-Section 65
-Paragraph 1
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=122150657&loc=SL122150809-237846

Reference 33: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 65
-Paragraph 8
-Subparagraph (e)(3)
-URI http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277

Reference 34: http://www.xbrl.org/2003/role/disclosureRef
-Topic 848
-SubTopic 10
-Name Accounting Standards Codification
-Section 65
-Paragraph 2
-Publisher FASB
-Subparagraph (c)

+ Details

Short-Term Debt and Credit Facilities

6 Months Ended

Jun. 30, 2022

Short-term Debt [Abstract]

Short-Term Debt and Credit Facilities

The Registrants borrow on a short-term basis, as necessary, by the issuance of commercial paper and by borrowings under their revolving credit agreements. OGE Energy also borrows under term credit agreements maturing in one year or less, as necessary. OGE Energy had $425.4 million and $486.9 million of short-term debt at June 30, 2022 and December 31, 2021, respectively. OG&E had $263.8 million and $101.3 million in advances from OGE Energy at June 30, 2022 and December 31, 2021, respectively.

The following table presents information regarding the Registrants' revolving credit agreements at June 30, 2022.


	Aggregate		Amount		Weighted-Average
Entity	Commitment		Outstanding (A)		Interest Rate			Expiration
	(In millions)
OGE Energy (B)	$	550.0	$	334.5	2.06	%	(F)	December 17, 2026
OGE Energy (C)	50.0		—		—	%	(F)	May 24, 2025
OG&E (D)(E)	550.0		91.3		2.06	%	(F)	December 17, 2026
Total	$	1,150.0	$	425.8	2.06	%

(A)Includes direct borrowings under the revolving credit agreements, commercial paper borrowings and letters of credit at June 30, 2022.

(B)This bank facility is available to back up OGE Energy's commercial paper borrowings and to provide revolving credit borrowings. This bank facility can also be used as a letter of credit facility.

(C)See Note 9 for further information about this revolving credit agreement.

(D)This bank facility is available to back up OG&E's commercial paper borrowings and to provide revolving credit borrowings. This bank facility can also be used as a letter of credit facility.

(E)OG&E has an intercompany borrowing agreement with OGE Energy whereby OG&E has access to up to $450.0 million of OGE Energy's revolving credit amount. This agreement has a termination date of December 17, 2026. At June 30, 2022, there were $409.0 million in intercompany borrowings under this agreement.

(F)Represents the weighted-average interest rate for the outstanding borrowings under the revolving credit agreements, commercial paper borrowings and letters of credit.

The Registrants' ability to access the commercial paper market could be adversely impacted by a credit ratings downgrade or major market disruptions. Pricing grids associated with the Registrants' credit facilities could cause annual fees and borrowing rates to increase if an adverse rating impact occurs. The impact of any future downgrade could include an increase in the costs of the Registrants' short-term borrowings, but a reduction in the Registrants' credit ratings would not result in any defaults or accelerations. Any future downgrade could also lead to higher long-term borrowing costs and, if below investment grade, would require the Registrants to post collateral or letters of credit.

OG&E must obtain regulatory approval from the FERC in order to borrow on a short-term basis. OG&E has the necessary regulatory approvals to incur up to $800.0 million in short-term borrowings at any one time for a two-year period beginning January 1, 2021 and ending December 31, 2022.

Short-Term Debt and Credit Facilities (Tables)

6 Months Ended

Jun. 30, 2022

Short-term Debt [Abstract]

Schedule of Line of Credit Facilities [Table Text Block]

The following table presents information regarding the Registrants' revolving credit agreements at June 30, 2022.


	Aggregate		Amount		Weighted-Average
Entity	Commitment		Outstanding (A)		Interest Rate			Expiration
	(In millions)
OGE Energy (B)	$	550.0	$	334.5	2.06	%	(F)	December 17, 2026
OGE Energy (C)	50.0		—		—	%	(F)	May 24, 2025
OG&E (D)(E)	550.0		91.3		2.06	%	(F)	December 17, 2026
Total	$	1,150.0	$	425.8	2.06	%

(A)Includes direct borrowings under the revolving credit agreements, commercial paper borrowings and letters of credit at June 30, 2022.

(B)This bank facility is available to back up OGE Energy's commercial paper borrowings and to provide revolving credit borrowings. This bank facility can also be used as a letter of credit facility.

(C)See Note 9 for further information about this revolving credit agreement.

(D)This bank facility is available to back up OG&E's commercial paper borrowings and to provide revolving credit borrowings. This bank facility can also be used as a letter of credit facility.

(F)Represents the weighted-average interest rate for the outstanding borrowings under the revolving credit agreements, commercial paper borrowings and letters of credit.

Common Equity Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Equity [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 100.7	$ 39.0	$ 85.1	$ 11.2	$ 352.6	$ 165.6
Basic average common shares outstanding	200.2		200.2		200.2	200.1
Contingently issuable shares (performance and restricted stock units)	0.5		0.2		0.4	0.1
Diluted average common shares outstanding	200.7		200.4		200.6	200.2
Earnings Per Share, Basic and Diluted [Abstract]
Basic earnings per average common share	$ 0.37		$ 0.56		$ 1.76	$ 0.83
Diluted earnings per average common share	$ 0.36		$ 0.56		$ 1.76	$ 0.83
Anti-dilutive shares excluded from earnings per share calculation	0.0		0.0		0.0	0.0

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (e)(4)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e4984-109258

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(23))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e3842-109258

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(25))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 60B
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(27))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e4984-109258

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e3842-109258

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 60B
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(27))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(23))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (e)(4)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(25))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

+ Details

- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of contingently issuable shares. Contingently issuable shares are those shares that are issuable for little or no cash contingent on certain conditions being met.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 54
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e2603-109256

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 44
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e2062-109256

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1828-109256

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e2600-109256

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e2597-109256

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 48
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e2538-109256

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 48
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e2538-109256

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 23
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1757-109256

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 51
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e2574-109256

+ Details

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

+ Details

Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2022

Long-term Debt, Unclassified [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]


Series			Date Due	Amount
				(In millions)
0.11%	-	1.10%	Garfield Industrial Authority, January 1, 2025	$	47.0
0.11%	-	1.05%	Muskogee Industrial Authority, January 1, 2025	32.4
0.11%	-	1.10%	Muskogee Industrial Authority, June 1, 2027	56.0
Total (redeemable during next 12 months)				$	135.4

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21506-112644

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69E
-URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495743-112612

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21521-112644

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21538-112644

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

+ Details

Fair Value Measurements Carrying and Fair Value Amounts (Details) - USD ($)
$ in Millions

Jun. 30, 2022

Dec. 31, 2021

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Equity Securities, FV-NI, Cost

^[1]

$ 382.0

$ 785.1

Equity Securities, FV-NI

^[1]

382.0

785.1

OG&E Senior Notes [Member]

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-Term Debt, Carrying Amount

3,853.0

3,851.8

Long-Term Debt, Fair Value

3,720.9

4,460.2

OG&E Industrial Authority Bonds [Member]

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-Term Debt, Carrying Amount

135.4

Long-Term Debt, Fair Value

135.4

OG&E Tinker Debt [Member]

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-Term Debt, Carrying Amount

9.3

Long-Term Debt, Fair Value

7.8

10.0

Senior Notes

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-Term Debt, Carrying Amount

499.9

Long-Term Debt, Fair Value

487.3

497.8

Term Loan

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-Term Debt, Carrying Amount

49.8

0.0

Long-Term Debt, Fair Value

50.0

0.0

Fair Value, Recurring [Member]

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Derivative Assets (Liabilities), at Fair Value, Net

$ 0.0

[1]	As of June 30, 2022, OGE Energy has sold 57.1 million of the 95.4 million Energy Transfer limited partner units it received as a result of the merger transaction between Enable and Energy Transfer in December 2021.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Adjustments to reconcile net income to net cash provided from (used in) operating activities:
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 352.6	$ 165.6
Depreciation and amortization	219.0	201.6
Deferred income taxes and other tax credits, net	182.2	10.3
Equity Securities, FV-NI, Gain (Loss)	(242.7)	0.0
Equity in earnings of unconsolidated affiliates	0.0	(86.7)
Distributions from unconsolidated affiliates	0.0	36.7
Allowance for equity funds used during construction	(2.2)	(2.9)
Stock-based compensation expense	1.5	1.0
Regulatory assets	(46.5)	(879.5)
Regulatory liabilities	(43.2)	(34.4)
Other assets	1.3	(1.4)
Other liabilities	(1.1)	(38.3)
Change in certain current assets and liabilities:
Accounts receivable and accrued unbilled revenues, net	(101.7)	(43.9)
Increase (Decrease) in Income Taxes Receivable	0.1	4.0
Fuel, materials and supplies inventories	(53.0)	(10.4)
Fuel recoveries	(119.8)	(24.3)
Other current assets	(39.8)	(1.3)
Accounts payable	35.1	(66.4)
Increase (Decrease) in Income Taxes Payable	(155.9)	2.6
Other current liabilities	16.6	8.2
Net cash provided from (used in) operating activities	32.2	(782.8)
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures (less allowance for equity funds used during construction)	(450.8)	(353.5)
Proceeds from Sale of Equity Securities, FV-NI	627.4	0.0
Other	(2.9)	(3.3)
Net cash provided from (used in) investing activities	(450.8)	(353.5)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from Issuance of Long-term Debt	0.0	499.8
Increase (decrease) in short-term debt	90.9	0.0
Increase (Decrease) in Due from Related Parties, Current	332.6	106.5
Proceeds from Contributions from Parent	0.0	530.0
Dividends paid on common stock	(164.4)	(162.2)
Net cash (used in) provided from financing activities	423.5	1,136.3
NET CHANGE IN CASH AND CASH EQUIVALENTS	4.9	0.0
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	0.0	0.0
CASH AND CASH EQUIVALENTS AT END OF PERIOD	4.9	0.0
Proceeds from (Payments for) Other Financing Activities	(0.8)	(3.4)
Net Income (Loss) Attributable to Parent	$ 139.7	$ 96.3

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2022

Fair Value Disclosures [Abstract]

Schedule of Fair Value and Carrying Amount of PRM Financial Instruments [Table Text Block]

The following table presents OGE Energy's financial instrument measured at fair value on a recurring basis and the carrying amount and fair value of the Registrants' financial instruments at June 30, 2022 and December 31, 2021, as well as the classification level within the fair value hierarchy.


	June 30,				December 31,
	2022				2021
(In millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value		Classification
Financial instrument measured at fair value on a recurring basis:
OGE Energy investment in Energy Transfer's equity securities (A)	$	382.0	$	382.0	$	785.1	$	785.1	Level 1

Financial instruments for which fair value is only disclosed:
Long-term Debt (including Long-term Debt due within one year):
OGE Energy Senior Notes	$	499.9	$	487.3	$	499.9	$	497.8	Level 2
OGE Energy Term Loan	$	49.8	$	50.0	$	—	$	—	Level 2
OG&E Senior Notes	$	3,853.0	$	3,720.9	$	3,851.8	$	4,460.2	Level 2
OG&E Industrial Authority Bonds	$	135.4	$	135.4	$	135.4	$	135.4	Level 2
OG&E Tinker Debt	$	9.3	$	7.8	$	9.3	$	10.0	Level 3

(A)As of June 30, 2022, OGE Energy has sold 57.1 million of the 95.4 million Energy Transfer limited partner units it received as a result of the merger transaction between Enable and Energy Transfer in December 2021.

Investment in Unconsolidated Affiliates (Tables)

6 Months Ended

Jun. 30, 2022

Reconciliation of Basis Difference [Line Items]

Reconciliation of Equity in Earnings of Unconsolidated Affiliates [Table Text Block]

The following table presents a reconciliation of OGE Energy's equity in earnings of unconsolidated affiliates for the three and six months ended June 30, 2021.



(In millions)	Three Months Ended			Six Months Ended
Enable net income	$	79.0		$	234.0
OGE Energy's percent ownership at period end	25.5		%	25.5		%
OGE Energy's portion of Enable net income	$	20.0		$	59.5
Amortization of basis difference and dilution recognition (A)	13.5			27.2
Equity in earnings of unconsolidated affiliates	$	33.5		$	86.7

(A)Includes loss on dilution, net of proportional basis difference recognition.

The following table presents summarized related party transactions between OG&E and Enable during the three and six months ended June 30, 2021.



(In millions)	Three Months Ended		Six Months Ended
Operating revenues:
Electricity to power electric compression assets	$	3.3	$	5.9
Fuel, purchased power and direct transmission expense:
Natural gas transportation services	$	9.3	$	14.0

Natural gas purchases (sales)	$	(8.4)	$	(20.6)

Regulated Operations	6 Months Ended
Regulated Operations	Jun. 30, 2022
Regulated Operations [Abstract]
Rate Matters and Regulation	Rate Matters and Regulation Except as set forth below, the circumstances set forth in Note 16 to the financial statements included in the Registrants' 2021 Form 10-K appropriately represent, in all material respects, the current status of the Registrants' regulatory matters. Completed Regulatory Matters APSC Proceedings Arkansas 2021 Formula Rate Plan Filing In October 2021, OG&E filed its fourth evaluation report under its Formula Rate Plan, and on February 1, 2022, OG&E, the APSC General Staff and the Office of the Arkansas Attorney General filed a non-unanimous joint settlement agreement, which included an annual electric revenue increase of $4.2 million. The only non-signatory to the settlement agreement agreed not to oppose the settlement. On March 4, 2022, the APSC issued a final order approving the non-unanimous settlement agreement, and new rates became effective April 1, 2022. OCC Proceedings Winter Storm Uri In December 2021, the OCC approved a settlement agreement in a final financing order authorizing the issuance of securitization bonds in an amount up to $760.0 million, which included estimated finance costs and was subject to change for carrying costs, any updates from the SPP settlement process and actual securitization issuance costs. On December 22, 2021, the ODFA requested the Oklahoma Supreme Court to certify the proposed securitization bonds. On May 3, 2022, the Oklahoma Supreme Court issued a decision approving the securitization bonds, and on July 20, 2022, the ODFA issued the securitization bonds consistent with the OCC's order. In connection with the securitization transaction, the ODFA and OG&E entered into an agreement on July 20, 2022 whereby the ODFA purchased, and OG&E sold, the securitization property that was created pursuant to legislation enacted by the State of Oklahoma in April 2021 and the financing order received from the OCC in December 2021. Such securitization property includes the right to assess, impose, adjust, collect and receive funds, in the form of the winter event securitization charge, from OG&E's existing and future Oklahoma customers in amounts intended to be sufficient to pay the principal and interest and financing charges on the securitization bonds. On July 20, 2022, OG&E received proceeds of approximately $750 million for the sale of the securitization property, which represented the amount of the securitization bonds sold less the issuance costs. OG&E used these proceeds to fund the Oklahoma Winter Storm Uri regulatory asset by recovering the authorized extreme, extraordinary fuel and purchased power costs incurred during Winter Storm Uri, as well as carrying costs. Beginning August 1, 2022, OG&E acts as a servicer for collecting the funds from Oklahoma customers that are then submitted to the ODFA to repay the securitization bonds over 28 years. Pending Regulatory Matters Various proceedings pending before state or federal regulatory agencies are described below. Unless stated otherwise, the Registrants cannot predict when the regulatory agency will act or what action the regulatory agency will take. The Registrants' financial results are dependent in part on timely and constructive decisions by the regulatory agencies that set OG&E's rates. FERC Proceedings Order for Sponsored Transmission Upgrades within SPP Under the SPP Open Access Transmission Tariff, costs of participant-funded, or "sponsored," transmission upgrades may be recovered from other SPP customers whose transmission service depends on capacity enabled by the upgrade. The SPP Open Access Transmission Tariff required the SPP to charge for these upgrades beginning in 2008, but the SPP had not been charging its customers for these upgrades due to information system limitations. However, the SPP had informed participants in the market that these charges would be forthcoming. In July 2016, the FERC granted the SPP's request to recover the charges not billed since 2008. The SPP subsequently billed OG&E for these charges and credited OG&E related to transmission upgrades that OG&E had sponsored, which resulted in OG&E being a net receiver of sponsored upgrade credits. The majority of these net credits were refunded to customers through OG&E's various rate riders that include SPP activity with the remaining amounts retained by OG&E. Several companies that were net payers of Z2 charges sought rehearing of the FERC's July 2016 order; however, in November 2017, the FERC denied the rehearing requests. In January 2018, one of the impacted companies appealed the FERC's decision to the U.S. Court of Appeals for the District of Columbia Circuit. In July 2018, that court granted a motion requested by the FERC that the case be remanded back to the FERC for further examination and proceedings. In February 2019, the FERC reversed its July 2016 order and November 2017 rehearing denial, ruled that the SPP violated its tariff to charge for the 2008 through 2015 period in 2016, held that the SPP tariff provision that prohibited those charges could not be waived and ordered the SPP to develop a plan to refund the payments but not to implement the refunds until further ordered to do so. In response, in April 2019, OG&E filed a request for rehearing with the FERC, and in May 2019, OG&E filed a FERC 206 complaint against the SPP, alleging that the SPP's forced unwinding of the revenue credit payments to OG&E would violate the provisions of the Sponsored Upgrade Agreement and of the applicable tariff. OG&E's filing requested that the FERC rule that the SPP is not entitled to seek refunds or in any other way seek to unwind the revenue credit payments it had paid to OG&E pursuant to the Sponsored Upgrade Agreement. The SPP's response to OG&E's filing agreed that OG&E should be entitled to keep its Z2 payments and argued that the SPP should not be held responsible for those payments if refunds are ordered. Further, the SPP has requested the FERC to negotiate a global settlement with all impacted parties, including other project sponsors who, like OG&E, have also filed complaints at FERC contending that the payments they have received cannot properly be unwound. In February 2020, the FERC denied OG&E's request for rehearing of its February 2019 order, denying the waiver and ruling that the SPP must seek refunds from project sponsors for Z2 payments for the 2008 through 2015 period and pay them back to transmission owners. The FERC also denied the SPP's request for a stay and for institution of settlement procedures. The FERC stated it would not institute settlement procedures unless parties on both sides of the matter requested them. The FERC did not rule on OG&E's complaint or the complaints of other project sponsors, or consider the SPP's refund plan. The FERC thus has not set any date for payment of refunds. In March 2020, OG&E petitioned the U.S. Court of Appeals for the District of Columbia Circuit for review of the FERC's order denying the waiver and requiring refunds. The court issued a decision on August 27, 2021, denying review and holding that the SPP was prohibited by the filed rate doctrine from imposing Z2 charges during the 2008 through 2015 historical period. The court further held that the FERC reasonably exercised its remedial authority to order the SPP to refund the retroactive upgrade charge. The court did not direct a time frame or procedures for the SPP to implement refunds. OG&E and the SPP filed a petition for rehearing of the court's decision, which was denied in October 2021. The court returned the matter to the FERC for action in accordance with its opinion in November 2021. If the FERC proceeds to order refunds in full, OG&E estimates it would be required to refund $13.0 million, which is net of amounts paid to other utilities for upgrades and would be subject to interest at the FERC-approved rate. The SPP has stated in filings it made with the FERC while the appeal was pending that there are considerable complexities in implementing the refunds that will have to be resolved before they can be paid. Payment of refunds would shift recovery of these upgrade credits to future periods. The SPP filed an update on January 4, 2022 confirming that administering refunds would be complex and could take years unless the SPP is allowed to make certain simplifying assumptions. It also urged that all pending complaint proceedings, including four complaints against the SPP, be resolved before the refund process is ordered to begin. OG&E and other parties filed responses to the SPP report, and the matter remains pending at the FERC. Of the $13.0 million, the Registrants would be impacted by $5.0 million in expense that initially benefited the Registrants in 2016, and OG&E customers would incur a net impact of $8.0 million in expense through rider mechanisms or the FERC formula rate. As of June 30, 2022, the Registrants have reserved $13.0 million plus estimated interest for a potential refund. In January 2020, the FERC acted on an SPP proposal to eliminate Attachment Z2 revenue crediting and replace it with a different rate mechanism that would provide project sponsors, such as OG&E, the same level of recovery, and rejected the proposal to the extent it would limit recovery to the amount of the upgrade sponsor's directly assigned upgrade costs with interest. The SPP resubmitted a proposal in April 2020 without this limited recovery, and with the alternative rate mechanism, and the FERC approved it in June 2020, effective July 1, 2020. No party sought rehearing of the order, and it is now final. This order would only prospectively impact OG&E and its recovery of any future upgrade costs that it may incur as a project sponsor subsequent to July 2020. All of the existing projects that are eligible to receive revenue credits under Attachment Z2, which includes the $13.0 million at issue in OG&E's appeal as discussed above, will continue to do so. Incentive Adders for Transmission Rates The FERC issued a NOPR in March 2020, and issued a supplemental NOPR in April 2021, proposing to update its transmission incentives policy. Among other things, the NOPR proposes (i) the current 50-basis point return on equity adder for RTO/ISO participation would be applicable only to transmitting utilities that join an RTO/ISO, and this incentive would only apply for the first three years in which the utility is an RTO/ISO member and (ii) transmitting utilities that have been members of an RTO/ISO for three years or more, such as OG&E, would be required to make a compliance filing to remove the existing return on equity adder from their rates. Currently, there is no specific deadline for the FERC to take further action, and it is unknown whether the FERC will address the RTO participation adder individually or as part of a larger order on transmission incentives. APSC Proceedings Winter Storm Uri In February 2021, Winter Storm Uri resulted in record winter peak demand for electricity and extremely high natural gas and purchased power prices in OG&E's service territory. On April 1, 2021, OG&E filed with the APSC a Motion for Authority to Establish Special Regulatory Treatment within the Energy Cost Recovery Rider to Defer Extraordinary Fuel Costs Incurred Due to Winter Storm Uri. More specifically, OG&E's motion sought approval to defer, amortize and recover the extraordinary fuel costs over a ten-year period with a carrying charge of OG&E's pre-tax rate of return of 6.60 percent, through a special factor within OG&E's Energy Cost Recovery Rider beginning with the first billing cycle of May 2021. On April 13, 2021, the APSC issued an order allowing OG&E interim recovery at an interest rate equal to the customer deposit interest rate, which is currently 0.8 percent, over a period of ten years beginning with the first billing cycle of May 2021. Recovery is subject to a true-up after the APSC determines the appropriate allocation, length of recovery and carrying charge. On May 4, 2021, OG&E filed testimony further supporting its 10-year amortization period and a carrying charge of OG&E's pre-tax rate of return of 6.60 percent. In April 2021, Arkansas enacted legislation to amend its storm recovery securitization statute to allow for both electric and gas utilities to recover through securitization extraordinary natural gas, fuel and purchased power costs caused by storms. The amended statute authorizes the APSC to issue a financing order for the issuance of securitization bonds upon a finding it is reasonably expected to lower overall costs or mitigate rate impacts as compared with traditional utility financing. Upon the initiation of a securitization application, the APSC has 135 days to issue an order. The requesting utility has two years from the date of the financing order to issue the securitization bonds. The amended statute allows carrying costs at a utility's weighted average cost of capital from the date of when the costs were incurred until the date when bonds are ultimately issued. In May 2021, the APSC approved OG&E's motion for suspension of procedural schedule to investigate and evaluate the potential securitization recovery of the Arkansas jurisdictional portion of the Winter Storm Uri costs. On July 5, 2022, OG&E filed a motion to request recovery of the regulatory asset balance over 10 years using a weighted average cost of capital instead of through securitization. On July 15, 2022, the APSC Staff filed a response to OG&E’s motion stating the Staff does not oppose OG&E's request for recovery using a weighted average cost of capital, as long as no other party to the case opposes. Subsequently, other intervenors have filed their opposition to OG&E using a weighted average cost of capital for recovery. On August 1, 2022, the APSC issued a procedural order to set a schedule for additional testimony, and a hearing on the merits is expected to be held on December 2, 2022. As of June 30, 2022, OG&E has deferred $83.9 million to a regulatory asset, as indicated in Note 1. Arkansas 2021 Formula Rate Plan Filing - Extension In October 2021, OG&E filed a request to extend its Formula Rate Plan Rider for an additional five years. On April 1, 2022, the APSC issued an order granting OG&E an extension of the Formula Rate Plan Rider under the terms and conditions to be detailed in a subsequent order to be issued no later than May 18, 2022. On May 18, 2022, the APSC issued such order granting a five-year extension of the Formula Rate Plan Rider with certain terms and conditions, including continuation of OG&E's current return on equity of 9.5 percent and a change to OG&E's current debt-to-equity ratio of 50/50 percent to 55/45 percent. On June 17, 2022, OG&E filed a request for rehearing seeking reconsideration by the APSC of their decision to alter the Formula Rate Plan Rider's capital structure, and on July 15, 2022, the APSC issued an order to reconsider their decision. OG&E and the other intervening parties submitted initial rehearing testimony and briefs on July 29, 2022, and reply rehearing testimony and/or briefs are due on August 12, 2022. Certain intervenors indicated that the Formula Rate Plan Rider extension should include the change to OG&E's debt-to-equity ratio to 55/45 percent in order for the extension to be granted. OCC Proceedings Oklahoma Retail Electric Supplier Certified Territory Act Causes Several rural electric cooperative electricity suppliers have filed complaints with the OCC alleging that OG&E has violated the Oklahoma Retail Electric Supplier Certified Territory Act. OG&E believes it is lawfully serving customers specifically exempted from this act and has presented evidence and testimony to the OCC supporting its position. There have been five complaint cases initiated at the OCC, and the OCC has issued decisions on each of them. The OCC ruled in favor of the electric cooperatives in three of those cases and ruled in favor of OG&E in two of those cases. All five of those cases have been appealed to the Oklahoma Supreme Court, where they have been made companion cases but will be individually briefed and have individual final decisions. If the Oklahoma Supreme Court ultimately were to find that some or all of the customers being served are not exempted from the Oklahoma Retail Electric Supplier Certified Territory Act, OG&E would have to evaluate the recoverability of some plant investments made to serve these customers. The total amount of OG&E's plant investments made to serve the customers in all five cases is approximately $28.0 million, of which $11.7 million applies to the three cases where the OCC ruled in favor of the electric cooperatives. In addition to the evaluation of the recoverability of the investments, OG&E may also be required to reimburse certified territory suppliers for an amount of lost revenue. The amount of such lost revenue would depend on how the OCC calculates the revenue requirement but could range from approximately $35.6 million to $48.3 million for all five cases, of which $3.5 million to $5.9 million would apply to the three cases where the OCC ruled in favor of the electric cooperatives. 2021 Oklahoma General Rate Review In December 2021, OG&E filed a general rate review in Oklahoma seeking a rate increase of $163.5 million and a 10.2 percent return on equity based on a common equity percentage of 53.37 percent. The rate review was based on a September 30, 2021 test year and includes a request for recovery of $1.2 billion of capital investment since the last general rate review. On June 30, 2022, OG&E entered into a Joint Stipulation and Settlement Agreement with the Public Utility Division Staff, the Oklahoma Attorney General, the OG&E Shareholders Association, Oklahoma Industrial Energy Consumers and other intervenors. Non-signatory parties agreed not to contest this agreement. Key terms of the agreement include, among others: •A base rate revenue increase of $30.0 million; •OG&E would issue a refund, over a 12-month period, for the tax expense savings arising from the reduction in the Oklahoma state corporate income tax rate from 6 percent to 4 percent for the period from January 1, 2022 through June 30, 2022, as well as amortize over five years the excess accumulated deferred income tax balance resulting from this corporate tax rate change; •There would be no change in OG&E's current return on equity, and OG&E's requested capital structure based on a common equity percentage of 53.37 percent would be approved; •OG&E would utilize depreciation rates based on the recommendations of the Oklahoma Attorney General with the exception of transmission and general plant accounts, which would be based on the depreciation rates recommended by the Oklahoma Industrial Energy Consumers; •OG&E's Grid Enhancement Plan projects recorded as of March 31, 2022 would be considered prudent and be included in base rates; •OG&E's Grid Enhancement Plan interim recovery would continue and updated terms include: (i) cost recovery through a rider mechanism will be limited to projects placed in service in 2022, 2023 and 2024, capped at a revenue requirement of $6.0 million for each annual investment plan and include communication, automation and technology systems projects, as well as certain weather hardening projects; and (ii) the rider mechanism will terminate by the issuance of a final order in OG&E's first general rate review following completion of projects included in the 2024 annual investment plan or no later than July 1, 2025; •OG&E would amend several of its rider tariffs to incorporate the agreements of the stipulating parties; and •Regulatory accounting treatments approved include, among other things, the establishment of a regulatory asset to defer operation and maintenance costs associated with OG&E's SAP S/4 HANA enterprise resource planning system project for consideration in future rate proceedings with the carrying cost accruing at OG&E's short-term cost of debt, the amortization of COVID-19 regulatory asset balance over five years and the amortization of over/under-recovery balance of the pension tracker over 15 years, which is a change from the previous five-year recovery period. On July 21, 2022, the Administrative Law Judge issued a report that recommended the OCC approve the agreement, and an order is expected from the OCC in the third quarter of 2022. OG&E has the right to implement interim rates subject to refund beginning July 1, 2022 (180 days after the filing of its application on December 30, 2021). On July 1, 2022, OG&E implemented an annual interim rate increase of $30.0 million, subject to refund for amounts in excess of the rates approved by the OCC. 2021 Oklahoma Fuel Prudency On July 1, 2022, the Public Utility Division Staff filed their application initiating the review of the 2021 fuel adjustment clause and prudence review. OG&E plans to file its Minimum Filing Requirements and Supporting Testimony on August 30, 2022.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) Parenthetical - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Pension Plan and Restoration of Retirement Income Plan:
Other Comprehensive Income Amortization Of Defined Benefit Pension Plans Net Prior Service Cost Recognized in Net Periodic Pension Cost, Tax	$ 0.0	$ 0.0	$ 0.0	$ 0.0
Amortization of deferred net loss	0.2	0.2	0.3	0.4
Other Comprehensive Income (Loss), Defined Benefit Plan, Adjustment for Settlement or Curtailment Gain (Loss), Tax	0.2	0.6	2.4	1.6
Postretirement Benefit Plans:
Amortization of prior service cost	0.0	(0.1)	0.0	(0.2)
Other Comprehensive Income Reclassification Of Defined Benefit Postretirement Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax	0.0	0.0	0.0	0.0
Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest	$ 0.0	$ 0.1	$ 0.0	$ 0.1

Investment in Unconsolidated Affiliates (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest		25.50%		25.50%
Distributions from unconsolidated affiliates	$ 13.3		$ 30.0
Equity in earnings of unconsolidated affiliates	$ 0.0	$ 33.5	$ 0.0	$ 86.7
Enable Midstream Partners [Member]
Revenue from Related Parties		3.3		5.9
Enable Midstream Partners [Member] \| Natural Gas Transportation [Member]
Related Party Transaction, Purchases from Related Party		9.3		14.0
Enable Midstream Partners [Member] \| Natural Gas Purchases [Member]
Related Party Transaction, Purchases from Related Party		$ (8.4)		$ (20.6)

- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07.1(c))
-URI http://asc.fasb.org/extlink&oid=120401555&loc=SL114874292-224272

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iii)(B))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(C))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

+ Details

Common Equity

6 Months Ended

Jun. 30, 2022

Common Equity [Text Block]

Common Equity

Automatic Dividend Reinvestment and Stock Purchase Plan

OGE Energy issued no shares of common stock under its Automatic Dividend Reinvestment and Stock Purchase Plan during the three and six months ended June 30, 2022.

Earnings Per Share

The following table presents the calculation of basic and diluted earnings per share for OGE Energy.


	Three Months Ended June 30,				Six Months Ended June 30,
(In millions, except per share data)	2022		2021		2022		2021
Net income	$	73.1	$	112.9	$	352.6	$	165.6
Average common shares outstanding:
Basic average common shares outstanding	200.2		200.2		200.2		200.1
Effect of dilutive securities:
Contingently issuable shares (performance and restricted stock units)	0.5		0.2		0.4		0.1
Diluted average common shares outstanding	200.7		200.4		200.6		200.2
Basic earnings per average common share	$	0.37	$	0.56	$	1.76	$	0.83
Diluted earnings per average common share	$	0.36	$	0.56	$	1.76	$	0.83
Anti-dilutive shares excluded from earnings per share calculation	—		—		—		—

Fair Value Measurements

6 Months Ended

Jun. 30, 2022

Fair Value Disclosures [Abstract]

Fair Value Measurements

Level 1 inputs are quoted prices in active markets for identical unrestricted assets or liabilities that are accessible at the measurement date.

OG&E had no financial instruments measured at fair value on a recurring basis at June 30, 2022 and December 31, 2021. The following table presents OGE Energy's financial instrument measured at fair value on a recurring basis and the carrying amount and fair value of the Registrants' financial instruments at June 30, 2022 and December 31, 2021, as well as the classification level within the fair value hierarchy.


	June 30,				December 31,
	2022				2021
(In millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value		Classification
Financial instrument measured at fair value on a recurring basis:
OGE Energy investment in Energy Transfer's equity securities (A)	$	382.0	$	382.0	$	785.1	$	785.1	Level 1

Financial instruments for which fair value is only disclosed:
Long-term Debt (including Long-term Debt due within one year):
OGE Energy Senior Notes	$	499.9	$	487.3	$	499.9	$	497.8	Level 2
OGE Energy Term Loan	$	49.8	$	50.0	$	—	$	—	Level 2
OG&E Senior Notes	$	3,853.0	$	3,720.9	$	3,851.8	$	4,460.2	Level 2
OG&E Industrial Authority Bonds	$	135.4	$	135.4	$	135.4	$	135.4	Level 2
OG&E Tinker Debt	$	9.3	$	7.8	$	9.3	$	10.0	Level 3

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues from contracts with customers	$ 791.0	$ 564.5	$ 1,369.1	$ 2,185.5
Other revenues	12.7	12.9	23.9	22.5
Operating revenues	803.7	577.4	1,393.0	2,208.0
FUEL, PURCHASED POWER AND DIRECT TRANSMISSION EXPENSE	393.3	200.0	649.0	1,546.8
OPERATING EXPENSES
Other operation and maintenance	118.1	119.2	233.8	228.6
Depreciation and amortization	111.6	102.9	219.0	201.6
Taxes other than income	24.1	25.8	50.1	50.7
Operating expenses	253.2	246.2	502.9	480.9
OPERATING INCOME	157.2	131.2	241.1	180.3
OTHER INCOME (EXPENSE)
Equity Securities, FV-NI, Gain (Loss)	(39.6)	0.0	242.7	0.0
Equity in earnings of unconsolidated affiliates	0.0	33.5	0.0	86.7
Allowance for equity funds used during construction	0.9	1.6	2.2	2.9
Other net periodic benefit expense	(1.8)	(1.2)	(3.2)	(2.1)
Other income	1.0	1.1	2.2	2.8
Other expense	(0.4)	(0.3)	(0.8)	(0.7)
Net other income	(0.3)	1.2	0.4	2.9
INTEREST EXPENSE
Interest on long-term debt	38.6	37.4	77.1	75.8
Allowance for borrowed funds used during construction	(0.9)	(0.7)	(2.1)	(1.5)
Interest on short-term debt and other interest charges	2.1	1.2	3.0	2.0
Interest expense	39.8	37.9	78.0	76.3
INCOME BEFORE TAXES	117.1	94.5	163.5	106.9
INCOME TAX EXPENSE	16.4	10.1	23.8	10.6
NET INCOME	$ 100.7	$ 85.1	$ 139.7	$ 96.3
BASIC AVERAGE COMMON SHARES OUTSTANDING	200.2	200.2	200.2	200.1
DILUTED AVERAGE COMMON SHARES OUTSTANDING	200.7	200.4	200.6	200.2
BASIC EARNINGS PER AVERAGE COMMON SHARE	$ 0.37	$ 0.56	$ 1.76	$ 0.83
DILUTED EARNINGS PER AVERAGE COMMON SHARE	$ 0.36	$ 0.56	$ 1.76	$ 0.83
Other Comprehensive Income (Loss), Net of Tax	$ 0.0	$ 0.0	$ 0.0	$ 0.0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 100.7	$ 85.1	$ 139.7	$ 96.3

Short-Term Debt and Credit Facilities (Details) - USD ($)
$ in Millions

6 Months Ended

Jun. 30, 2022

Dec. 31, 2021

Line of Credit Facility [Line Items]

Line of Credit Facility, Current Borrowing Capacity

^[1],[2]

$ 550.0

Short-term debt

90.9

$ 0.0

Line of Credit Facility [Abstract]

Aggregate Commitment

1,150.0

Long-term Line of Credit

^[3]

425.8

Letters of Credit Outstanding, Amount

^[1],[2],[3]

$ 91.3

Weighted Average Interest Rate

2.06%

Maturity

^[1],[2]

Dec. 17, 2026

Short Term Borrowing Capacity That Has Regulatory Approval

$ 800.0

Intercompany Borrowing Agreement - Maximum Borrowing Capacity

450.0

Outstanding Intercompany Borrowings

$ 409.0

Period For Which Regulatory Approval Has Been Given to Acquire Short Term Debt

2 years

Advances from parent

$ 263.8

$ 101.3

Term Loan

Line of Credit Facility [Line Items]

Line of Credit Facility, Current Borrowing Capacity

^[4]

50.0

Line of Credit Facility [Abstract]

Long-term Line of Credit

^[4]

$ 0.0

Weighted Average Interest Rate

^[4],[5]

0.00%

Maturity

^[4]

May 24, 2025

[1]	OG&E has an intercompany borrowing agreement with OGE Energy whereby OG&E has access to up to $450.0 million of OGE Energy's revolving credit amount. This agreement has a termination date of December 17, 2026. At June 30, 2022, there were $409.0 million in intercompany borrowings under this agreement.
[2]	This bank facility is available to back up OG&E's commercial paper borrowings and to provide revolving credit borrowings. This bank facility can also be used as a letter of credit facility.
[3]	Includes direct borrowings under the revolving credit agreements, commercial paper borrowings and letters of credit at June 30, 2022.
[4]	See Note 9 for further information about this revolving credit agreement.
[5]	Represents the weighted-average interest rate for the outstanding borrowings under the revolving credit agreements, commercial paper borrowings and letters of credit.

Investment in Unconsolidated Affiliates Summarized Income Statement of Equity Method Investment (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Schedule of Equity Method Investments [Line Items]
Operating revenues	$ 803.7		$ 577.4		$ 1,393.0	$ 2,208.0
Operating Income (Loss)	157.2		131.2		241.1	180.3
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 100.7	$ 39.0	85.1	$ 11.2	$ 352.6	165.6
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Schedule of Equity Method Investments [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest			$ 79.0			$ 234.0

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

+ Details

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(A))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iii)(A))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(B))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 22: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(ii))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 23: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

+ Details

Summary of Significant Accounting Policies Equity Ownership (Details) - USD ($)
$ in Millions

3 Months Ended

6 Months Ended

Jun. 30, 2022

Mar. 31, 2022

Jun. 30, 2021

Mar. 31, 2021

Jun. 30, 2022

Jun. 30, 2021

Equity Securities, FV-NI, Gain (Loss)

$ (39.6)

$ 0.0

$ 242.7

$ 0.0

Investment Owned, Balance, Shares

38,279,580

Proceeds from Equity Method Investment, Distribution

$ 13.3

$ 30.0

Equity in earnings of unconsolidated affiliates

0.0

33.5

$ 0.0

86.7

Equity Securities Sold During Period

73,300,000

Proceeds from Sales of Equity Securities

$ 812.6

Distributions from unconsolidated affiliates

18.4

0.0

36.7

Proceeds from Sale of Interest in Partnership Unit

6.7

175.7

Equity Securities, FV-NI, Unrealized Loss

(39.6)

242.7

Net Income (Loss), Including Portion Attributable to Noncontrolling Interest

100.7

$ 39.0

$ 85.1

$ 11.2

352.6

$ 165.6

Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest

25.50%

Proportionate Unconsolidated Affiliate Net Income

$ 20.0

$ 59.5

Equity in Earnings Amortization of Basis Difference

^[1]

13.5

27.2

Debt and Equity Securities, Unrealized Gain (Loss)

$ (46.3)

$ 67.0

Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]

Net Income (Loss), Including Portion Attributable to Noncontrolling Interest

$ 79.0

$ 234.0

[1]	Includes loss on dilution, net of proportional basis difference recognition.

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($)
$ in Millions

Jun. 30, 2022

Dec. 31, 2021

CURRENT ASSETS

Accounts Receivable, after Allowance for Credit Loss, Current

$ 231.5

$ 162.0

Cash and cash equivalents

4.9

0.0

Accrued unbilled revenues

97.2

65.0

Income taxes receivable

2.5

2.6

Fuel inventories

80.6

40.6

Materials and supplies, at average cost

130.9

117.9

Fuel clause under recoveries

271.7

151.9

Other

858.0

67.7

Total current assets

1,674.8

605.1

OTHER PROPERTY AND INVESTMENTS

Equity Securities, FV-NI, Cost

^[1]

382.0

785.1

Other

105.1

120.0

Total other property and investments

3.8

3.9

PROPERTY, PLANT AND EQUIPMENT

In service

14,279.5

13,893.7

Construction work in progress

270.4

252.0

Total property, plant and equipment

14,549.9

14,145.7

Less: accumulated depreciation

4,438.0

4,318.9

Net property, plant and equipment

10,111.9

9,826.8

DEFERRED CHARGES AND OTHER ASSETS

Regulatory assets

505.1

1,230.8

Other

21.6

21.4

Total deferred charges and other assets

526.7

1,252.2

TOTAL ASSETS

12,317.2

11,688.0

CURRENT LIABILITIES

Short-term debt

90.9

0.0

Accounts payable

279.3

240.6

Advances from parent

263.8

101.3

Dividends payable

82.1

Customer deposits

81.8

81.1

Accrued taxes

48.6

50.8

Accrued interest

40.5

40.4

Accrued compensation

29.7

27.8

Long-term Debt, Current Maturities

499.9

0.0

Other

49.9

33.8

Total current liabilities

1,384.4

575.8

LONG-TERM DEBT

3,497.8

3,996.5

DEFERRED CREDITS AND OTHER LIABILITIES

Accrued benefit obligations

70.4

75.1

Deferred income taxes

1,208.7

1,000.4

Deferred investment tax credits

13.8

12.8

Regulatory liabilities

1,205.3

1,231.1

Other

192.8

193.5

Total deferred credits and other liabilities

2,691.0

2,512.9

Total liabilities

7,573.2

7,085.2

COMMITMENTS AND CONTINGENCIES (NOTE 13)

STOCKHOLDERS' EQUITY

Common stockholders' equity

1,573.2

1,571.7

Retained earnings

3,170.8

3,031.1

Accumulated other comprehensive loss, net of tax

(16.1)

(24.8)

Treasury Stock, Carrying Basis

(0.1)

Total stockholders' equity

4,744.0

4,602.8

TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY

$ 12,317.2

$ 11,688.0

[1]	As of June 30, 2022, OGE Energy has sold 57.1 million of the 95.4 million Energy Transfer limited partner units it received as a result of the merger transaction between Enable and Energy Transfer in December 2021.

Revenue from Contracts with Customers (Notes)

6 Months Ended

Jun. 30, 2022

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customer [Text Block]

Revenue Recognition



	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2022		2021		2022		2021
Residential	$	289.3	$	178.5	$	516.1	$	746.7
Commercial	193.4		108.3		321.5		415.8
Industrial	81.4		37.5		138.8		184.2
Oilfield	79.0		28.7		132.2		189.5
Public authorities and street light	71.1		37.0		119.1		160.1
System sales revenues	714.2		390.0		1,227.7		1,696.3
Provision for tax refund	(2.1)		—		(2.7)		—
Integrated market	43.0		128.3		65.8		430.4
Transmission	32.9		36.7		68.7		73.0
Other	3.0		9.5		9.6		(14.2)
Revenues from contracts with customers (A)	$	791.0	$	564.5	$	1,369.1	$	2,185.5

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130550-203045

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130558-203045

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

+ Details

Stock-Based Compensation

6 Months Ended

Jun. 30, 2022

Share-based Payment Arrangement [Abstract]

Share-based Payment Arrangement [Text Block]

Stock-Based Compensation


	OGE Energy								OG&E
	Three Months Ended June 30,				Six Months Ended June 30,				Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2022		2021		2022		2021		2022		2021		2022		2021

Performance units - total shareholder return	$	1.8	$	1.9	$	3.6	$	3.9	$	0.5	$	0.5	$	1.1	$	0.9
Restricted stock units	0.5		0.4		1.0		0.9		0.2		0.1		0.4		0.1
Total compensation expense	$	2.3	$	2.3	$	4.6	$	4.8	$	0.7	$	0.6	$	1.5	$	1.0
Income tax benefit	$	0.6	$	0.6	$	1.2	$	1.2	$	0.2	$	0.2	$	0.4	$	0.3

During the six months ended June 30, 2022, OGE Energy issued 27,278 shares of new common stock pursuant to OGE Energy's Stock Incentive Plan and issued an immaterial amount of treasury stock to satisfy payouts of restricted stock unit grants to the Registrants' employees.

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes OGE Energy files consolidated income tax returns in the U.S. federal jurisdiction and various state jurisdictions. OG&E is a part of the consolidated income tax return of OGE Energy. With few exceptions, the Registrants are no longer subject to U.S. federal tax or state and local examinations by tax authorities for years prior to 2018. Income taxes are generally allocated to each company in the affiliated group, including OG&E, based on its stand-alone taxable income or loss. Federal investment tax credits previously claimed on electric utility property have been deferred and will be amortized to income over the life of the related property. Additionally, OG&E earned federal tax credits associated with production from its wind facilities through January 2022. Oklahoma production and investment state tax credits are also earned on investments in electric and solar generating facilities which further reduce OG&E's effective tax rate.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 17
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.5.Q1)
-URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 270
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI http://asc.fasb.org/topic&trid=2144680

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Other comprehensive income (loss), net of tax
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 100.7	$ 85.1	$ 352.6	$ 165.6
Pension Plan and Restoration of Retirement Income Plan:
Amortization of prior service cost, net of tax of $0.0, $0.0, $0.0 and $0.0, respectively	0.0	0.0	0.1	0.0
Amortization of deferred net loss, net of tax of $0.2, $0.2, $0.3 and $0.4, respectively	0.2	0.2	0.5	0.8
Settlement cost, net of tax of $0.2, $0.6, $2.4 and $1.6, respectively	0.7	0.6	8.1	3.7
Postretirement Benefit Plans:
Amortization of prior service credit, net of tax of $0.0, ($0.1), $0.0 and ($0.2), respectively	0.0	(0.4)	0.0	(0.7)
Amortization of deferred net gain, net of tax of $0.0, $0.0 and $0.0, respectively	0.0	0.1	0.0	0.1
Other comprehensive gain from unconsolidated affiliates, net of tax of $0.0, $0.1, $0.0 and $0.1, respectively	0.0	(0.2)	0.0	(0.3)
Other comprehensive income, net of tax	0.0	0.0	0.0	0.0
Comprehensive income	100.7	85.1	139.7	96.3
Other Comprehensive Income Amortization Of Defined Benefit Pension Plans Net Prior Service Cost Recognized in Net Periodic Pension Cost, Tax	0.0	0.0	0.0	0.0
Amortization of deferred net loss	0.2	0.2	0.3	0.4
Other Comprehensive Income (Loss), Defined Benefit Plan, Adjustment for Settlement or Curtailment Gain (Loss), Tax	0.2	0.6	2.4	1.6
Amortization of prior service cost	0.0	(0.1)	0.0	(0.2)
Other Comprehensive Income Reclassification Of Defined Benefit Postretirement Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax	0.0	0.0	0.0	0.0
Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest	$ 0.0	$ 0.1	$ 0.0	$ 0.1

Summary of Significant Accounting Policies Accumulated Other Comprehensive Income (Loss) Reclassifications out of AOCI (Details) - USD ($)
$ in Millions

3 Months Ended

6 Months Ended

Jun. 30, 2022

Jun. 30, 2021

Jun. 30, 2022

Jun. 30, 2021

Accumulated Other Comprehensive Income (Loss) [Line Items]

Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent

$ (0.9)

$ (0.5)

$ (8.7)

$ (3.9)

Pension Plan [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax

^[1]

(0.4)

(0.8)

(1.2)

Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax

0.0

(0.1)

^[1]

0.0

^[1]

Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax

^[1]

(0.9)

(1.2)

(10.5)

(5.3)

Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax

(1.3)

(1.6)

(11.4)

(6.5)

Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax

(0.4)

(0.8)

(2.7)

(2.0)

Amounts reclassified from accumulated other comprehensive income (loss), net of tax

(0.9)

(0.8)

(8.7)

(4.5)

Other Postretirement Benefits Plan [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax

^[1]

0.0

(0.1)

0.0

(0.1)

Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax

^[1]

0.0

0.5

0.0

0.9

Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax

0.0

0.4

0.0

0.8

Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax

0.0

0.1

0.0

0.2

Amounts reclassified from accumulated other comprehensive income (loss), net of tax

$ 0.0

$ 0.3

$ 0.0

$ 0.6

[1]	These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost (see Note 11 for additional information).

Report of Business Segments

6 Months Ended

Jun. 30, 2022

Segment Reporting [Abstract]

Report of Business Segments

Report of Business SegmentsOGE Energy reports its operations in two business segments: (i) the electric utility segment, which is engaged in the generation, transmission, distribution and sale of electric energy and (ii) natural gas midstream operations segment. Prior to the Enable and Energy Transfer merger closing on December 2, 2021, OGE Energy's natural gas midstream operations segment included its equity method investment in Enable. Subsequent to December 2, 2021, OGE Energy's natural gas midstream operations segment includes its investment in Energy Transfer's equity securities and legacy Enable seconded employee pension and postretirement costs. Other operations primarily includes the operations of the holding company. Intersegment revenues are recorded at prices comparable to those of unaffiliated customers and are affected by regulatory considerations. The following tables present the results of OGE Energy's business segments for the three and six months ended June 30, 2022 and 2021.



Three Months Ended June 30, 2022	Electric Utility		Natural Gas Midstream Operations		Other Operations		Eliminations		Total
(In millions)
Operating revenues	$	803.7	$	—	$	—	$	—	$	803.7
Fuel, purchased power and direct transmission expense	393.3		—		—		—		393.3
Other operation and maintenance	118.3		0.5		(0.7)		—		118.1
Depreciation and amortization	111.6		—		—		—		111.6


Taxes other than income	23.3		0.1		0.7		—		24.1
Operating income (loss)	157.2		(0.6)		—		—		156.6
Loss on equity securities	—		(39.6)		—		—		(39.6)
Other income (expense)	(0.3)		12.4		—		(0.4)		11.7
Interest expense	39.8		—		3.0		(0.4)		42.4
Income tax expense (benefit)	16.4		(8.9)		5.7		—		13.2
Net income (loss)	$	100.7	$	(18.9)	$	(8.7)	$	—	$	73.1

Total assets	$	12,317.2	$	401.7	$	751.9	$	(632.8)	$	12,838.0



Three Months Ended June 30, 2021	Electric Utility		Natural Gas Midstream Operations		Other Operations		Eliminations		Total
(In millions)
Operating revenues	$	577.4	$	—	$	—	$	—	$	577.4
Fuel, purchased power and direct transmission expense	200.0		—		—		—		200.0
Other operation and maintenance	118.3		1.6		(0.7)		—		119.2
Depreciation and amortization	102.9		—		—		—		102.9
Taxes other than income	25.0		0.1		0.7		—		25.8
Operating income (loss)	131.2		(1.7)		—		—		129.5
Equity in earnings of unconsolidated affiliates	—		33.5		—		—		33.5
Other income (expense)	1.2		(0.2)		(0.5)		(0.6)		(0.1)
Interest expense	37.9		—		2.6		(0.6)		39.9
Income tax expense (benefit)	9.4		(0.6)		1.3		—		10.1
Net income (loss)	$	85.1	$	32.2	$	(4.4)	$	—	$	112.9
Investment in unconsolidated affiliates	$	—	$	425.4	$	—	$	—	$	425.4
Total assets	$	11,459.3	$	427.8	$	127.4	$	(115.0)	$	11,899.5



Six Months Ended June 30, 2022	Electric Utility		Natural Gas Midstream Operations		Other Operations		Eliminations		Total
(In millions)
Operating revenues	$	1,393.0	$	—	$	—	$	—	$	1,393.0
Fuel, purchased power and direct transmission expense	649.0		—		—		—		649.0
Other operation and maintenance	233.8		1.2		(1.9)		—		233.1
Depreciation and amortization	219.0		—		—		—		219.0


Taxes other than income	50.1		0.1		2.0		—		52.2
Operating income (loss)	241.1		(1.3)		(0.1)		—		239.7
Gain on equity securities	—		242.7		—		—		242.7
Other income	0.4		21.1		—		(0.5)		21.0
Interest expense	78.0		—		5.0		(0.5)		82.5
Income tax expense (benefit)	23.8		51.3		(6.8)		—		68.3
Net income	$	139.7	$	211.2	$	1.7	$	—	$	352.6

Total assets	$	12,317.2	$	401.7	$	751.9	$	(632.8)	$	12,838.0



Six Months Ended June 30, 2021	Electric Utility		Natural Gas Midstream Operations		Other Operations		Eliminations		Total
(In millions)
Operating revenues	$	2,208.0	$	—	$	—	$	—	$	2,208.0
Fuel, purchased power and direct transmission expense	1,546.8		—		—		—		1,546.8
Other operation and maintenance	228.6		2.0		(2.1)		—		228.5
Depreciation and amortization	201.6		—		—		—		201.6
Taxes other than income	50.7		0.2		2.1		—		53.0
Operating income (loss)	180.3		(2.2)		—		—		178.1
Equity in earnings of unconsolidated affiliates	—		86.7		—		—		86.7
Other income (expense)	2.9		(0.7)		(0.6)		(0.8)		0.8
Interest expense	76.3		—		3.8		(0.8)		79.3
Income tax expense (benefit)	10.6		13.7		(3.6)		—		20.7
Net income (loss)	$	96.3	$	70.1	$	(0.8)	$	—	$	165.6
Investment in unconsolidated affiliates	$	—	$	425.4	$	—	$	—	$	425.4
Total assets	$	11,459.3	$	427.8	$	127.4	$	(115.0)	$	11,899.5

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8657-108599

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

+ Details

Regulated Operations (Details) - USD ($)
$ in Millions

Jun. 30, 2022

Dec. 31, 2021

Schedule of Regulatory Assets and Liabilities [Line Items]

Fuel clause under recoveries

$ 271.7

$ 151.9

Current Regulatory Assets

1,041.0

182.6

Non-Current Regulatory Assets

505.1

1,230.8

Current Regulatory Liabilities

4.6

2.5

Non-Current Regulatory Liabilities

1,205.3

1,231.1

Other (B)

Schedule of Regulatory Assets and Liabilities [Line Items]

Current Regulatory Liabilities

^[1]

4.6

2.5

Non-Current Regulatory Liabilities

3.1

3.6

Income taxes recoverable from customers, net

Schedule of Regulatory Assets and Liabilities [Line Items]

Non-Current Regulatory Liabilities

918.5

930.7

Accrued removal obligations, net

Schedule of Regulatory Assets and Liabilities [Line Items]

Non-Current Regulatory Liabilities

283.7

296.8

Winter Storm Uri costs

Schedule of Regulatory Assets and Liabilities [Line Items]

Current Regulatory Assets

750.5

0.0

Non-Current Regulatory Assets

83.9

88.9

Benefit obligations regulatory asset

Schedule of Regulatory Assets and Liabilities [Line Items]

Non-Current Regulatory Assets

101.0

109.2

Oklahoma deferred storm expenses

Schedule of Regulatory Assets and Liabilities [Line Items]

Non-Current Regulatory Assets

210.5

172.8

Smart Grid

Schedule of Regulatory Assets and Liabilities [Line Items]

Non-Current Regulatory Assets

0.4

3.9

Dry Scrubber Regulatory Asset [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Non-Current Regulatory Assets

18.5

18.9

Unamortized loss on reacquired debt

Schedule of Regulatory Assets and Liabilities [Line Items]

Non-Current Regulatory Assets

8.5

8.9

Deferred Pension Expenses [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Non-Current Regulatory Assets

12.1

Other Regulatory Asset [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Current Regulatory Assets

^[2]

10.7

9.7

Non-Current Regulatory Assets

10.2

10.4

Pension tracker

Schedule of Regulatory Assets and Liabilities [Line Items]

Non-Current Regulatory Assets

45.7

42.9

SPP Cost Tracker Rider Under Recovery

Schedule of Regulatory Assets and Liabilities [Line Items]

Current Regulatory Assets

^[2]

8.1

9.3

COVID-19 Deferred Expenses

Schedule of Regulatory Assets and Liabilities [Line Items]

Non-Current Regulatory Assets

8.3

8.2

Oklahoma Energy Efficiency Rider Under Recovery

Schedule of Regulatory Assets and Liabilities [Line Items]

Current Regulatory Assets

^[2]

0.0

11.7

Deferred Plant Expense

Schedule of Regulatory Assets and Liabilities [Line Items]

Non-Current Regulatory Assets

$ 6.0

$ 6.7

[1]	Included in Other Current Liabilities in the condensed balance sheets.
[2]	Included in Other Current Assets in the condensed balance sheets. The Oklahoma Winter Storm Uri regulatory asset was reclassified as current at June 30, 2022, in anticipation of the securitization process being completed in July 2022 and OG&E receiving funds from the ODFA.