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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2021
Income Tax Disclosure [Abstract] |
Components of Provision (Benefit) for Income Taxes | The components of the provision (benefit) for income taxes for the years ended December 31, 2021 and 2020 are as follows:
|  | Year Ended December 31, |
(Thousands of dollars) |  | 2021 |  |  | 2020 |
Current: |  |  |  |  |  |  |  |
Federal |  | $ | 81 |  |  | $ | 950 |
State |  |  | 59 |  |  |  | 80 |
Total current |  |  | 140 |  |  |  | 1,030 |
Deferred: |  |  |  |  |  |  |  |
Federal |  |  | 1,802 |  |  |  | (1,491 | )
State |  |  | 574 |  |  |  | (56 | )
Total deferred |  |  | 2,376 |  |  |  | (1,547 | )
Total income tax provision |  | $ | 2,516 |  |  | $ | (517 | )
Components of Net Deferred Tax Assets and Liabilities |
|  | At December 31, |
(Thousands of dollars) |  | 2021 |  |  | 2020 |
Deferred Tax Assets: |  |  |  |  |  |  |  |
Accrued liabilities |  | $ | 80 |  |  | $ | (584 | )
Allowance for doubtful accounts |  |  | 85 |  |  |  | 136 |
Derivative Contracts |  |  | 1,272 |  |  |  | 153 |
State Net operating loss carry-forwards |  |  | 470 |  |  |  | 760 |
Total deferred tax assets |  |  | 1,907 |  |  |  | 465 |
Deferred Tax Liabilities: |  |  |  |  |  |  |  |
Partnership basis difference |  |  | (98 | ) |  |  | 544 |
Depletion and depreciation |  |  | 40,748 |  |  |  | 36,288 |
Total deferred tax liabilities |  |  | 40,650 |  |  |  | 36,832 |
Net deferred tax liabilities |  | $ | 38,743 |  |  | $ | 36,367 |
Provision for Income Taxes Varies from Federal Statutory Tax Rate | The total provision (benefit) for income taxes for the years ended December 31, 2021 and 2020 varies from the federal statutory tax rate as a result of the following:
|  | Year Ended December 31, |
(Thousands of dollars) |  | 2021 |  |  | 2020 |
Expected tax expense |  | $ | 975 |  |  | $ | (595 | )
Net changes in deferred assets and liabilities |  |  | 2,376 |  |  |  | (1,547 | )
Permanent differences |  |  | (677 | ) |  |  | 521 |
State income tax, net of federal benefit |  |  | 47 |  |  |  | 63 |
Provision to return adjustment |  |  | 744 |  |  |  | 1,547 |
Tax Credits |  |  | (948 | ) |  |  | (502 | )
Other, net |  |  | (1 | ) |  |  | (4 | )
Total income tax provision (benefit) |  | $ | 2,516 |  |  | $ | (517 | )

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- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 + Details
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- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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