XML 56 R39.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Income Taxes (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Income Taxes [Abstract] |
Schedule of Components of Income Tax Expense (Benefit) | The following table presents the components of income tax expense (benefit).
|  | OGE Energy |  |  | OG&E |
Year Ended December 31 (In millions) |  | 2024 |  |  | 2023 |  |  | 2022 |  |  | 2024 |  |  | 2023 |  |  | 2022 |
Provision (benefit) for current income taxes: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal |  | $ | 62.0 |  |  | $ | 46.1 |  |  | $ | 250.8 |  |  | $ | 72.7 |  |  | $ | 48.9 |  |  | $ | (141.2 | )
State |  |  | 0.8 |  |  |  | (2.2 | ) |  |  | 28.8 |  |  |  | 3.0 |  |  |  | 3.7 |  |  |  | (0.9 | )
Total provision (benefit) for current income taxes |  |  | 62.8 |  |  |  | 43.9 |  |  |  | 279.6 |  |  |  | 75.7 |  |  |  | 52.6 |  |  |  | (142.1 | )
Provision (benefit) for deferred income taxes, net: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | 8.0 |  |  |  | 18.1 |  |  |  | (110.8 | ) |  |  | 9.0 |  |  |  | 18.8 |  |  |  | 219.9 |
State |  |  | 8.3 |  |  |  | (5.8 | ) |  |  | (45.2 | ) |  |  | 8.5 |  |  |  | (2.6 | ) |  |  | (1.4 | )
Total provision (benefit) for deferred income taxes, net |  |  | 16.3 |  |  |  | 12.3 |  |  |  | (156.0 | ) |  |  | 17.5 |  |  |  | 16.2 |  |  |  | 218.5 |
Total income tax expense |  | $ | 79.1 |  |  | $ | 56.2 |  |  | $ | 123.6 |  |  | $ | 93.2 |  |  | $ | 68.8 |  |  | $ | 76.4 |
Schedule of Effective Income Tax Rate Reconciliation | The following table presents a reconciliation of the statutory tax rates to the effective income tax rate.
|  | OGE Energy |  |  | OG&E |
Year Ended December 31 |  | 2024 |  | 2023 |  | 2022 |  |  | 2024 |  | 2023 |  | 2022 |
Statutory federal tax rate |  |  | 21.0 | % |  | 21.0 | % |  | 21.0 | % |  |  | 21.0 | % |  | 21.0 | % |  | 21.0 | %
State income taxes, net of federal income tax benefit |  |  | 1.3 |  |  | (1.3 | ) |  | (1.0 | ) |  |  | 1.5 |  |  | 0.3 |  |  | (0.4 | )
Stock-based compensation |  |  | (0.3 | ) |  | 0.1 |  |  | — |  |  |  | (0.1 | ) |  | — |  |  | — |
Executive compensation limitation |  |  | 0.2 |  |  | 0.2 |  |  | 0.1 |  |  |  | 0.1 |  |  | — |  |  | — |
Amortization of net unfunded deferred taxes |  |  | (6.3 | ) |  | (7.0 | ) |  | (3.2 | ) |  |  | (5.8 | ) |  | (6.7 | ) |  | (5.0 | )
Remeasurement of state deferred tax liabilities |  |  | — |  |  | — |  |  | (0.6 | ) |  |  | — |  |  | — |  |  | — |
401(k) dividends |  |  | (0.2 | ) |  | (0.3 | ) |  | (0.2 | ) |  |  | — |  |  | — |  |  | — |
Other |  |  | (0.5 | ) |  | (0.8 | ) |  | (0.4 | ) |  |  | (0.1 | ) |  | (0.7 | ) |  | (0.8 | )
Effective income tax rate |  |  | 15.2 | % |  | 11.9 | % |  | 15.7 | % |  |  | 16.6 | % |  | 13.9 | % |  | 14.8 | %
Schedule of Deferred Tax Assets and Liabilities | The following table presents the components of Deferred Income Taxes at December 31, 2024 and 2023.
|  | OGE Energy |  |  | OG&E |
December 31 (In millions) |  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Deferred income tax liabilities, net: |  |  |  |  |  |  |  |  |  |  |  |
Accelerated depreciation and other property related differences |  | $ | 1,809.5 |  |  | $ | 1,753.8 |  |  | $ | 1,809.5 |  |  | $ | 1,753.8 |
Regulatory assets |  |  | 65.6 |  |  |  | 67.6 |  |  |  | 65.6 |  |  |  | 67.6 |
Pension Plan |  |  | 22.0 |  |  |  | 21.8 |  |  |  | 38.6 |  |  |  | 37.9 |
Corporate owned life insurance |  |  | 2.8 |  |  |  | 2.6 |  |  |  | — |  |  |  | — |
Bond redemption-unamortized costs |  |  | 1.2 |  |  |  | 1.4 |  |  |  | 1.2 |  |  |  | 1.4 |
Income taxes recoverable from customers, net |  |  | (188.6 | ) |  |  | (202.7 | ) |  |  | (188.6 | ) |  |  | (202.7 | )
State tax credits |  |  | (223.8 | ) |  |  | (228.8 | ) |  |  | (208.5 | ) |  |  | (213.5 | )
Regulatory liabilities |  |  | (57.3 | ) |  |  | (54.4 | ) |  |  | (57.3 | ) |  |  | (54.4 | )
Asset retirement obligations |  |  | (20.9 | ) |  |  | (19.7 | ) |  |  | (20.9 | ) |  |  | (19.7 | )
Postretirement medical and life insurance benefits |  |  | (19.1 | ) |  |  | (20.8 | ) |  |  | (12.6 | ) |  |  | (14.0 | )
Accrued liabilities |  |  | (15.7 | ) |  |  | (13.2 | ) |  |  | (9.8 | ) |  |  | (5.5 | )
Deferred federal investment tax credits |  |  | (2.5 | ) |  |  | (2.7 | ) |  |  | (2.5 | ) |  |  | (2.7 | )
Accrued vacation |  |  | (1.9 | ) |  |  | (1.4 | ) |  |  | (1.9 | ) |  |  | (1.4 | )
Uncollectible accounts |  |  | (0.5 | ) |  |  | (0.5 | ) |  |  | (0.5 | ) |  |  | (0.4 | )
Other |  |  | 0.3 |  |  |  | (2.2 | ) |  |  | (1.6 | ) |  |  | (5.6 | )
Total deferred income tax liabilities, net |  | $ | 1,371.1 |  |  | $ | 1,300.8 |  |  | $ | 1,410.7 |  |  | $ | 1,340.8 |
Schedule of Unrecognized Tax Benefits Roll Forward | The following table presents a reconciliation of the Registrants' total gross unrecognized tax benefits as of the years ended December 31, 2024, 2023 and 2022.
(In millions) |  | 2024 |  |  | 2023 |  |  | 2022 |
Balance at January 1 |  | $ | 28.6 |  |  | $ | 20.7 |  |  | $ | 22.4 |
Tax positions related to current year: |  |  |  |  |  |  |  |  |
Additions |  |  | — |  |  |  | 7.9 |  |  |  | — |
Reductions |  |  | — |  |  |  | — |  |  |  | (1.7 | )
Balance at December 31 |  | $ | 28.6 |  |  | $ | 28.6 |  |  | $ | 20.7 |
Summary of Tax Credit Carryforwards | The following table presents a summary of the Registrants' tax credits carried forward as deferred tax assets. Under current law, the Registrants expect future taxable income will be sufficient to utilize all credits before they begin to expire after 2030.
|  | OGE Energy |  |  | OG&E |  |  |
(In millions) |  | Carry Forward Amount |  |  | Deferred Tax Asset |  |  | Carry Forward Amount |  |  | Deferred Tax Asset |  |  | Earliest Expiration Date
State tax credits: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Oklahoma investment tax credits |  | $ | 264.3 |  |  | $ | 208.8 |  |  | $ | 245.0 |  |  | $ | 193.5 |  |  | N/A
Oklahoma capital investment board credits |  | $ | 12.8 |  |  | $ | 12.8 |  |  | $ | 12.8 |  |  | $ | 12.8 |  |  | N/A
Oklahoma zero emission tax credits |  | $ | 4.2 |  |  | $ | 2.2 |  |  | $ | 4.2 |  |  | $ | 2.2 |  |  | 2030
N/A - not applicable

X
- Definition Income Taxes [Abstract] + References No definition available. + Details
Name: | oge_IncomeTaxesAbstract
Namespace Prefix: | oge_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
Name: | us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
Name: | us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
Name: | us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the change in unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 217 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-217 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15A + Details
Name: | us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of tax credit carryforwards available to reduce future taxable income, including amounts, expiration dates, limitations on use and the related deferred tax assets and valuation allowances. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
Name: | us-gaap_SummaryOfTaxCreditCarryforwardsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration