Form 8-K

8-K — OGE ENERGY CORP.

Accession: 0001021635-26-000026

Filed: 2026-07-29

Period: 2026-07-29

CIK: 0001021635

SIC: 4911 (ELECTRIC SERVICES)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — oge-20260729.htm (Primary)

EX-99.01 (oge-ex99_01.htm)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: oge-20260729.htm · Sequence: 1

8-K

00010216350000074145false00010216352026-07-292026-07-290001021635oge:OGEMember2026-07-292026-07-29

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported)

July 29, 2026

(Commission File Number)

(Exact Name of Registrants as Specified in Their Charters)

(I.R.S. Employer Identification No.)

1-12579

OGE ENERGY CORP.

73-1481638

1-1097

OKLAHOMA GAS AND ELECTRIC COMPANY

73-0382390

Oklahoma

(State or Other Jurisdiction of Incorporation)

321 North Harvey

P.O. Box 321

Oklahoma City

Oklahoma

73101-0321

(Address of Principal Executive Offices)

(Zip Code)

(405) 553-3000

(Registrant's telephone number, including area code)

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Registrant

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

OGE Energy Corp.

Common Stock

OGE

New York Stock Exchange

Oklahoma Gas and Electric Company

None

N/A

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02. Results of Operations and Financial Condition

OGE Energy Corp. ("OGE Energy") is the parent company of Oklahoma Gas and Electric Company ("OG&E"), a regulated electric company with approximately 917,000 customers in Oklahoma and western Arkansas.

On July 29, 2026, OGE Energy issued a press release announcing its consolidated financial results for the quarter ended June 30, 2026. A copy of such press release is furnished as Exhibit 99.01 and incorporated by reference herein.

Item 9.01. Financial Statements and Exhibits

(d) Exhibits

Exhibit Number

Description

99.01

Press release dated July 29, 2026, announcing OGE Energy Corp. reports second quarter 2026 results.

104

Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

This combined Current Report on Form 8-K is being furnished separately by OGE Energy and OG&E (Registrants). Information contained herein relating to any individual Registrant has been furnished by such Registrant on its own behalf. No Registrant makes any representation as to information relating to any other Registrant.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

OGE ENERGY CORP.

OKLAHOMA GAS AND ELECTRIC COMPANY

(Registrant)

By:

/s/ Sarah R. Stafford

Sarah R. Stafford

Controller and Chief Accounting Officer

July 29, 2026

EX-99.01

Filename: oge-ex99_01.htm · Sequence: 2

EX-99.01

Exhibit 99.01

OGE Energy Corp. reports second quarter 2026 results

OKLAHOMA CITY — OGE Energy Corp. (NYSE: OGE), the parent company of Oklahoma Gas and Electric Company ("OG&E"), today reported earnings of $0.56 per diluted share during the three months that ended June 30, 2026, compared to $0.53 per diluted share in the second quarter 2025.

•

OG&E, a regulated electric company, contributed earnings of $0.58 per diluted share in the second quarter, compared to earnings of $0.53 per diluted share in the second quarter 2025.

•

Other operations, which includes the holding company, contributed a loss of $0.02 per diluted share compared to breakeven results in the second quarter of 2025.

"Our second-quarter results reflect the strength of our business and the disciplined execution of our team as we advance investments that support reliable, affordable service for customers,” said Sean Trauschke, Chairman, President, and CEO of OGE Energy Corp. “We are making significant progress on initiatives that position OG&E for incremental growth while maintaining a strong focus on protecting existing customers as we prepare to serve new large-load opportunities and support economic development."

Second Quarter 2026 results

OG&E contributed net income of $120.1 million, or $0.58 per diluted share, in the second quarter compared to $107.7 million, or $0.53 per diluted share, in the same period 2025. The increase in net income was primarily due to increased recovery of capital investments and lower interest expense, partially offset by increased operation and maintenance expenses.

Other Operations resulted in a loss of $3.8 million, or $0.02 per diluted share, in the second quarter compared to a loss of $0.2 million, in the same period 2025. The increased loss was primarily due to higher interest expense and a one-time benefit related to legacy midstream operations recognized in 2025, which was partially offset by increased other income.

OGE Energy's net income was $116.3 million or $0.56 per diluted share in the second quarter, compared to earnings of $107.5 million, or $0.53 per diluted share, in the same period 2025.

2026 Outlook

OGE Energy's 2026 consolidated earnings guidance remains unchanged and is projected to be $2.43 per average diluted share, within a range of $2.38 to $2.48 per average diluted share. The guidance assumes, among other things, normal weather for the remainder of the year. OG&E has significant seasonality in its earnings due to weather on a year-over-year basis.

See OGE Energy’s 2025 Form 10-K for other key factors and assumptions underlying its 2026 guidance.

Conference Call Webcast

OGE Energy Corp. will host an earnings and business update conference call on Wednesday, July 29, 2026, at 8 a.m. CDT. The conference will be available through the Investor Center at www.oge.com.

Some of the matters discussed in this news release may contain forward-looking statements that are subject to certain risks, uncertainties and assumptions. Such forward-looking statements are intended to be identified in this document by the words "anticipate," "believe," "estimate," "expect," "forecast," "intend," "objective," "plan," "possible," "potential," "project," "target" and similar expressions. Actual results may vary materially. Factors that could cause actual results to differ materially from the forward-looking statements include, but are not limited to: general economic conditions, including the availability of credit, access to existing lines of credit, access to the commercial paper markets, actions of rating agencies and inflation rates, and their impact on capital expenditures; the ability of the Company to access the capital markets and obtain financing on favorable terms, as well as inflation rates and monetary fluctuations; the ability to obtain timely and sufficient rate relief to allow for recovery of items such as capital expenditures, fuel and purchased power costs, operating costs, transmission costs and deferred expenditures; prices and availability of electricity, coal and natural gas; competitive factors, including the extent and timing of the entry of additional competition in the markets served by the Company, potentially through deregulation; the impact on demand for the Company's services resulting from cost-competitive advances in technology, such as distributed electricity generation and customer energy efficiency programs; technological developments, changing markets and other factors that result in competitive disadvantages and create the potential for impairment of existing assets; factors affecting utility operations such as unusual weather conditions; catastrophic weather-related damage; unscheduled generation outages; unusual maintenance or repairs; unanticipated changes to fossil fuel, natural gas or coal supply costs or availability due to higher demand, shortages, transportation problems or other developments; environmental incidents; or electric transmission or gas pipeline system constraints; availability and prices of raw materials and equipment for current and future construction projects; the effect of retroactive pricing of transactions in the SPP markets, adjustments in market pricing mechanisms by the SPP, or allocation of transmission upgrade costs; federal or state legislation and regulatory decisions and initiatives that affect cost and investment recovery, have an impact on rate structures or affect the speed and degree to which competition enters the Company's markets; environmental laws, safety laws or other regulations that may impact the cost of operations, restrict or change the way the Company's facilities are operated or result in stranded assets; the ability of the Company to meet future capacity requirements mandated by the SPP, which could be impacted by future load growth, environmental regulations, and the availability of resources; changes in accounting standards, rules or guidelines; the discontinuance of accounting principles for certain types of rate-regulated activities; the cost of protecting assets against, or damage due to, terrorism or cyberattacks, including the Company losing control of its assets and potential ransoms, and other catastrophic events; the availability, cost, coverage and terms of insurance; changes in the use, perception or regulation of generative artificial intelligence technologies, which could limit the Company's ability to utilize such technology, create risk of enhanced regulatory scrutiny, generate uncertainty around intellectual property ownership, licensing or use, or which could otherwise result in risk of damage to the Company's business, reputation or financial results; creditworthiness of suppliers, customers and other contractual parties, including large, new customers from industries such as cryptocurrency and data centers; social attitudes regarding the electric utility and power industries; identification of suitable investment opportunities to enhance shareholder returns and achieve long-term financial objectives through business acquisitions and divestitures; increased pension and healthcare costs; national and global events that could adversely affect and/or exacerbate macroeconomic conditions, including inflationary pressures, interest rate fluctuations, supply chain disruptions, economic recessions, pandemic health events, tariffs and uncertainty surrounding continued hostilities or sustained military campaigns, and their collateral consequences; costs and other effects of legal and administrative proceedings, settlements, investigations, claims and matters, including, but not limited to, those described in the Company's Form 10-Q for the quarter ended June 30, 2026; and other risk factors listed in the reports filed by the Company with the Securities and Exchange Commission, including those listed within the Company's most recent Form 10-K for the year ended December 31, 2025.

Note: Condensed Consolidated Statements of Income for OGE Energy Corp., Condensed Statements of Income and Comprehensive Income for Oklahoma Gas & Electric Company, and Financial and Statistical Data for Oklahoma Gas & Electric Company attached.

OGE ENERGY CORP.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(Unaudited)

Three Months Ended

Six Months Ended

June 30,

(In millions, except per share data)

2026

2025

2026

2025

OPERATING REVENUES

Revenues from contracts with customers

688.0

719.7

1,424.7

1,460.8

Other revenues

23.9

21.9

39.8

28.5

Operating revenues

711.9

741.6

1,464.5

1,489.3

FUEL, PURCHASED POWER AND DIRECT TRANSMISSION EXPENSE

217.7

261.1

554.4

585.1

OPERATING EXPENSES

Other operation and maintenance

138.7

127.1

275.2

248.9

Depreciation and amortization

138.1

140.6

274.5

278.0

Taxes other than income

25.8

26.2

55.7

57.4

Operating expenses

302.6

293.9

605.4

584.3

OPERATING INCOME

191.6

186.6

304.7

319.9

OTHER INCOME (EXPENSE)

Allowance for equity funds used during construction

7.3

6.0

14.8

13.0

Other net periodic benefit expense

(2.6

)

(2.9

)

(5.2

)

(5.5

)

Other income

15.3

17.2

28.9

24.2

Other expense

(7.1

)

(5.2

)

(19.4

)

(9.7

)

Net other income

12.9

15.1

19.1

22.0

INTEREST EXPENSE

Interest on long-term debt

71.6

66.6

137.9

128.0

Allowance for borrowed funds used during construction

(3.4

)

(3.7

)

(7.0

)

(8.2

)

Interest on short-term debt and other interest charges

(1.5

)

9.3

(4.3

)

19.7

Interest expense

66.7

72.2

126.6

139.5

INCOME BEFORE TAXES

137.8

129.5

197.2

202.4

INCOME TAX EXPENSE

21.5

22.0

30.7

32.2

NET INCOME

116.3

107.5

166.5

170.2

BASIC AVERAGE COMMON SHARES OUTSTANDING

206.5

201.3

206.4

201.3

DILUTED AVERAGE COMMON SHARES OUTSTANDING

207.8

202.1

207.5

202.0

BASIC EARNINGS PER AVERAGE COMMON SHARE

0.56

0.53

0.81

0.85

DILUTED EARNINGS PER AVERAGE COMMON SHARE

0.56

0.53

0.80

0.84

OKLAHOMA GAS AND ELECTRIC COMPANY

CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME

(Unaudited)

Three Months Ended

Six Months Ended

June 30,

(In millions)

2026

2025

2026

2025

OPERATING REVENUES

Revenues from contracts with customers

688.0

719.7

1,424.7

1,460.8

Other revenues

23.9

21.9

39.8

28.5

Operating revenues

711.9

741.6

1,464.5

1,489.3

FUEL, PURCHASED POWER AND DIRECT TRANSMISSION EXPENSE

217.7

261.1

554.4

585.1

OPERATING EXPENSES

Other operation and maintenance

138.6

126.3

275.4

248.1

Depreciation and amortization

138.1

140.6

274.5

278.0

Taxes other than income

25.8

26.2

55.7

57.4

Operating expenses

302.5

293.1

605.6

583.5

OPERATING INCOME

191.7

187.4

304.5

320.7

OTHER INCOME (EXPENSE)

Allowance for equity funds used during construction

7.3

6.0

14.8

13.0

Other net periodic benefit expense

(2.5

)

(2.6

)

(5.0

)

(5.1

)

Other income

6.4

4.1

9.1

9.4

Other expense

(0.6

)

(0.5

)

(1.4

)

(1.4

)

Net other income

10.6

7.0

17.5

15.9

INTEREST EXPENSE

Interest on long-term debt

65.9

60.8

126.5

116.4

Allowance for borrowed funds used during construction

(3.4

)

(3.7

)

(7.0

)

(8.2

)

Interest on short-term debt and other interest charges

(4.1

)

6.3

(11.1

)

12.0

Interest expense

58.4

63.4

108.4

120.2

INCOME BEFORE TAXES

143.9

131.0

213.6

216.4

INCOME TAX EXPENSE

23.8

23.3

35.6

37.7

NET INCOME

120.1

107.7

178.0

178.7

Other comprehensive income, net of tax

—

COMPREHENSIVE INCOME

120.1

107.7

178.0

178.7

OKLAHOMA GAS AND ELECTRIC COMPANY

FINANCIAL AND STATISTICAL DATA

Three Months Ended

Six Months Ended

June 30,

(Dollars in millions)

2026

2025

2026

2025

Operating revenues by classification:

Residential

261.1

261.0

521.5

548.3

Commercial

215.6

225.9

427.6

434.7

Industrial

56.5

60.2

117.2

122.4

Oilfield

49.3

53.2

107.7

112.4

Public authorities and street light

62.3

64.5

124.2

125.3

System sales revenues

644.8

664.8

1,298.2

1,343.1

Provision for rate refund

—

3.0

Integrated market

27.4

26.3

74.7

47.6

Transmission

30.5

42.1

71.2

81.9

Other

9.2

8.4

20.4

13.7

Total operating revenues

711.9

741.6

1,464.5

1,489.3

MWh sales by classification (In millions)

Residential

2.3

2.1

4.4

4.6

Commercial

3.3

3.1

6.1

5.8

Industrial

1.0

2.0

Oilfield

1.1

1.0

2.2

2.1

Public authorities and street light

0.7

1.4

System sales

8.4

7.9

16.1

15.9

Integrated market

0.4

0.2

0.7

0.4

Total sales

8.8

8.1

16.8

16.3

Number of customers

917,157

909,131

917,157

909,131

Weighted-average cost of energy per kilowatt-hour (In cents)

Natural gas

3.438

3.498

5.173

4.265

Coal

2.662

2.761

2.620

2.751

Total fuel

3.086

3.120

4.208

3.508

Total fuel and purchased power

2.406

3.076

3.179

3.437

Degree days (A)

Heating - Actual

127

156

1,510

2,056

Heating - Normal

250

2,139

Cooling - Actual

772

579

864

598

Cooling - Normal

553

563

(A)

Degree days are calculated as follows: The high and low degrees of a particular day are added together and then averaged. If the calculated average is above 65 degrees, then the difference between the calculated average and 65 is expressed as cooling degree days, with each degree of difference equaling one cooling degree day. If the calculated average is below 65 degrees, then the difference between the calculated average and 65 is expressed as heating degree days, with each degree of difference equaling one heating degree day. The daily calculations are then totaled for the particular reporting period. The calculation of heating and cooling degree normal days is based on a 30-year average and weighted on a jurisdictional split.

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 5

v3.26.1

Document and Entity Information Document

Jul. 29, 2026

Entity Information [Line Items]

Entity Registrant Name

OGE ENERGY CORP.

Entity Central Index Key

0001021635

Document Type

8-K

Document Period End Date

Jul. 29, 2026

Amendment Flag

false

Entity Emerging Growth Company

false

Entity Incorporation, State or Country Code

Entity Tax Identification Number

73-1481638

Entity Address, Address Line One

321 North Harvey

Entity Address, Address Line Two

P.O. Box 321

Trading Symbol

OGE

Security Exchange Name

NYSE

City Area Code

405

Local Phone Number

553-3000

Entity Address, State or Province

Entity Address, Postal Zip Code

73101-0321

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Entity File Number

1-12579

Title of 12(b) Security

Common Stock

Written Communications

false

Entity Address, City or Town

Oklahoma City

OG&E

Entity Information [Line Items]

Entity Registrant Name

OKLAHOMA GAS AND ELECTRIC COMPANY

Entity Central Index Key

0000074145

Entity Tax Identification Number

73-0382390

Entity File Number

1-1097

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

Period Type:

duration

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 2 such as Street or Suite number

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine2

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

Period Type:

duration

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

Period Type:

duration

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

Period Type:

duration

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

Period Type:

duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:

dei_EntityInformationLineItems

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

Period Type:

duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

Period Type:

duration

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

Period Type:

duration

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Details

Name:

dei_LegalEntityAxis=oge_OGEMember

Namespace Prefix:

Data Type:

Balance Type:

Period Type: