Summary of Significant Accounting Policies	3 Months Ended
Summary of Significant Accounting Policies	Mar. 31, 2025
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies The selected significant accounting policies included below are policies that were adopted or modified during the three months ended March 31, 2025, as a result of the IPO or the adoption of new accounting policies. Refer to Note 2 – Summary of Significant Accounting Policies of our 2024 Form 10-K for the full list of our significant accounting policies. Use of Estimates. The preparation of financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The Company evaluates these estimates on an ongoing basis, using historical experience, consultation with experts and other methods it considers reasonable in the particular circumstances. Actual amounts could differ from these estimates, and changes in these estimates are recorded when known. Estimates significant to our consolidated financial statements include the following: •proved reserves used in calculating depletion; •estimates of accrued revenues and unbilled costs; •future cash flows from proved oil and natural gas reserves used in the impairment assessment; •derivative financial instruments; •asset retirement obligations; •the fair value of share-based compensation awards; and •estimates related to the tax receivable agreement. Redeemable Non-controlling Interest. Redeemable non-controlling interests are presented within our unaudited condensed consolidated balance sheet as of March 31, 2025 as mezzanine equity as they are redeemable upon the occurrence of an event that is not solely within our control. The carrying amount of the redeemable non-controlling interest is equal to the greater of (1) the carrying value of the non-controlling interest adjusted each reporting period for income or loss attributable to the non-controlling interest or (2) the redemption value. Remeasurements to the redemption value of the redeemable non-controlling interest are recognized in additional paid-in capital within the unaudited condensed consolidated balance sheet as of March 31, 2025. The redemption amount is calculated based on the 5-day volume-weighted average closing price (“VWAP”) of Class A common stock at the end of each reporting period. The portion of the net income or loss attributable to redeemable non-controlling interest is reported as net income or loss attributable to redeemable non-controlling interests on our unaudited condensed consolidated statement of operations for the three months ended March 31, 2025. Income Taxes. Following the completion of the IPO, the Company became subject to U.S. federal, state, and local income taxes on its share of taxable income earned through its interest in INR Holdings, which is treated as a pass-through entity for income tax purposes. INR Holdings itself is generally not subject to federal income tax, and instead, its income or loss is allocated to its members. INR Holdings may be subject to certain entity-level taxes imposed by specific states or jurisdictions. The Company uses the liability method to account for income taxes in accordance with ASC 740. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences of differences between the financial reporting and tax bases of assets and liabilities. Deferred tax amounts are calculated using the enacted tax rates expected to be in effect when the temporary differences reverse. Deferred tax assets are recorded when it is considered more likely than not that they will be realized. The Company evaluates the need for a valuation allowance by considering all available evidence, including projections of future taxable income, the timing of temporary difference reversals, the existence of tax planning strategies and historical operating results. The Company evaluates uncertain tax positions using a recognition and measurement approach. A tax position is recognized in the financial statements only if it is more likely than not that the position would be sustained upon examination by the relevant taxing authority. The amount recognized is based on the largest amount of tax benefit that has a greater than 50% likelihood of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. Interest and penalties, if incurred, are recorded in income tax expense. Tax Receivable Agreement. In connection with the IPO and related transactions, the Company entered into a Tax Receivable Agreement (“TRA”) with the Legacy Owners, which generally provides for the payment by us to the Legacy Owners of 85% of the net cash savings, if any, in U.S. federal, state and local income tax that we (a) actually realize with respect to taxable periods ending after the IPO or (b) are deemed to realize in the event of a change of control (as defined under the TRA, which includes certain mergers, asset sales and other forms of business combinations and certain changes to the composition of our board of directors) or the TRA terminates early (at our election or as a result of our breach) with respect to any taxable periods ending on or after such change of control or early termination event, in each case, as a result of (i) the tax basis increases resulting from the exchange of INR Units and the corresponding surrender of an equivalent number of shares of Class B common stock by the Legacy Owners for a number of shares of Class A common stock on a one-for-one basis or, at our option, the receipt of an equivalent amount of cash pursuant to the INR Holdings LLC Agreement and (ii) deductions arising from imputed interest deemed to be paid by us as a result of, and additional tax basis arising from, any payments we make under the TRA. The Company recognizes a liability for the estimated amounts payable under the TRA when it is probable that taxable income will be sufficient to realize the related tax benefits and the amounts can be reasonably estimated. The liability is measured using a “with and without” approach and is reassessed at each reporting period, with changes in estimates recognized in income tax expense. See Note 9 – Income Taxes and Tax Receivable Agreement for further details. (Loss) Earnings per Share. Basic (loss) earnings per share is calculated by dividing net (loss) income attributable to Infinity Natural Resources, Inc. by the weighted average number of shares of Class A common stock outstanding during the period. Diluted net (loss) earnings per share gives effect, when applicable, to unvested restricted stock units and performance stock units granted under the Plan (as defined in Note 11 – Share-based Compensation) and the exchange of INR Units (and the cancellation of an equal number of shares of Class B common stock) held by the Legacy Owners into Class A common stock. The Company uses the “if-converted” method to determine the potential dilutive effect of exchanges of INR Units (and the cancellation of an equal number of shares of Class B common stock), and the treasury stock method to determine the potential dilutive effect of vesting of outstanding equity awards. Share-based Compensation. The Company accounts for share-based compensation in accordance with ASC 718, Compensation — Stock Compensation (“ASC 718”). Share-based awards, including restricted stock units and performance stock units, are measured at their grant-date fair value and recognized as compensation expense on a straight-line basis over the requisite service period, which generally corresponds to the vesting period of the award. For restricted stock units, fair value is determined based on the closing stock price of the Company’s Class A common stock on the grant date. For performance stock units with market-based vesting conditions, fair value is estimated using a Monte Carlo simulation model and is not subsequently remeasured. Compensation expense for market-based awards is recognized regardless of whether the market condition is ultimately satisfied, provided the requisite service condition is met. The Company accounts for forfeitures as they occur. Adoption of New Accounting Standards. In March 2024, the FASB issued ASU 2024-01, Compensation-Stock Compensation (Topic 718). This ASU illustrates how to apply the scope guidance to determine whether a profits interest award should be accounted for as a share-based payment arrangement under Accounting Standards Codification (“ASC”) 718 or another accounting standard. The amendments in this update are effective for public entities for fiscal years beginning after December 15, 2024. As of March 31, 2025, we adopted the provisions of this amendment in our condensed consolidated financial statements. See Note 11 – Share-based Compensation for further details. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) – Improvements to Income Tax Disclosures (“ASU 2023-09”), which requires that certain information in a reporting entity’s tax rate reconciliation be disaggregated and provides additional requirements regarding income taxes paid. The amendments are effective for annual periods beginning after December 15, 2024, with early adoption permitted, and should be applied either prospectively or retrospectively. While the adoption of this ASU will modify the Company’s disclosures, it will not have an impact on the Company’s condensed consolidated balance sheets or statements of income or cash flows in its condensed consolidated financial statements. Please see Note 9 – Income Taxes and Tax Receivable Agreement for further details. Accounting Standards Not Yet Adopted. In November 2024, the FASB issued ASU 2024-03 - Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40). This ASU requires entities to disaggregate any relevant expense caption presented on the face of the income statement within continuing operations into the following required natural expense categories within the footnotes, as applicable: (1) purchases of inventory, (2) employee compensation, (3) depreciation, (4) intangible asset amortization, and (5) DD&A recognized as part of oil- and gas-producing activities or other depletion expenses. The amendments in this ASU are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact of the adoption of this guidance We considered the applicability and impact of all ASUs. ASUs not listed above were assessed and determined to be either not applicable or not material upon adoption.