Income Taxes

9 Months Ended

Sep. 30, 2021

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company calculates its interim income tax provision by estimating the annual expected effective tax rate and applying that rate to its ordinary year-to-date earnings or loss. In addition, the effect of changes in enacted tax laws, rates or tax status is recognized in the interim period in which the change occurs.

For the three months ended September 30, 2021 and 2020, the effective tax rate was approximately 2.3% and 5.1%, respectively, based on the annual effective tax rate net of discrete federal and state taxes. For the nine months ended September 30, 2021 and 2020, the effective tax rate was approximately 13.7% and 12.0%, respectively, based on the annual effective tax rate net of discrete federal and state taxes. For the three and nine months ended September 30, 2021 and 2020, the statutory tax rate was 21.0%. The computation of the effective tax rate includes modifications from the statutory rate such as income tax credits, tax depletion deduction, carrybacks, and state apportionment changes, among other items.

The Company has recorded a liability of $2,172 for uncertain tax positions included in deferred tax liabilities, long-term, net on its consolidated balance sheet as of September 30, 2021, related to its depletion deduction methodology, and a corresponding increase to the income tax expense on its condensed consolidated income statements. There was no liability for uncertain tax positions as of December 31, 2020.

As of September 30, 2021, the Company determine it is more likely than not that it will not be able to fully realize the benefits of certain existing deductible temporary differences and has recorded a valuation allowance against the deferred tax

liabilities, long-term, net on its consolidated balance sheet in the amount of $1,305, and a corresponding increase to the income tax expense on its condensed consolidated income statements.The Company’s federal income tax returns subsequent to 2017 remain open to audit by taxing authorities. The Company has not been informed that its tax returns are the subject of any audit or investigation by taxing authorities.