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FAIR VALUE MEASUREMENTS
 3 Months Ended
Mar. 31, 2025
Fair Value Disclosures [Abstract]  
FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS
We follow authoritative accounting guidance for measuring the fair value of assets and liabilities. This guidance defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Further, this guidance establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available.
The fair value hierarchy is broken down into three levels based on the reliability of the inputs as follows:
Level 1: Quoted prices in active markets for identical assets or liabilities 
Level 2: Quoted prices in active markets for similar assets and liabilities, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations whose inputs are observable or whose significant value drivers are observable
Level 3: Significant inputs to the valuation model are unobservable
We classify financial and non-financial assets and liabilities based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of the fair value of assets and liabilities and their placement within the fair value hierarchy.
Derivatives
We use Level 2 inputs to measure the fair value of crude oil and natural gas commodity price derivatives. The fair value of our commodity price derivatives is estimated using industry-standard models that contemplate various inputs including, but not limited to, the contractual price of the underlying position, current market prices, forward commodity price curves, volatility factors, time value of money, and the credit risk of both us and our counterparties. We validate our fair value estimate by corroborating the original source of inputs, monitoring changes in valuation methods and assumptions, and reviewing counterparty mark-to-market statements and other supporting documentation. Refer to Note 9 - Derivatives for more information regarding our derivative instruments.
The following table presents our financial assets and liabilities that were accounted for at fair value on a recurring basis as of March 31, 2025 and December 31, 2024 and their classification within the fair value hierarchy (in millions):
 As of March 31, 2025As of December 31, 2024
Level 2Level 2
Derivative assets$192 $84 
Derivative liabilities$97 $35 
Long-Term Debt
The portion of our long-term debt related to our Credit Facility, if any, approximates its fair value as it bears interest at a floating rate that approximates a current market rate. The portion of our long-term debt related to our Senior Notes is recorded at cost, net of any unamortized discount and deferred financing costs. The fair value of our Senior Notes is based on quoted market prices, and as such, is designated as Level 1 within the fair value hierarchy. The following table presents the fair value of our Senior Notes as of the dates indicated ($ in millions):
As of March 31, 2025As of December 31, 2024
 Nominal InterestFair ValuePercent of ParFair ValuePercent of Par
2026 Senior Notes5.000%$395 99%$394 99%
2028 Senior Notes8.375%1,395 103%1,405 104%
2030 Senior Notes8.625%1,035 104%1,049 105%
2031 Senior Notes8.750%1,389 103%1,408 104%
Our deferred acquisition consideration was recorded in connection with the Vencer Acquisition using an estimated fair value discount at the time of the transaction based on quoted market prices from our debt as well as other inputs classified as Level 2 within the fair value hierarchy. As of December 31, 2024, the carrying value of the deferred acquisition consideration approximated fair value. Refer to Note 5 - Debt for additional information.
Acquisitions and Impairments of Proved and Unproved Properties
We measure acquired assets or businesses at fair value on a nonrecurring basis and review our proved and unproved crude oil and natural gas properties for impairment using inputs that are not observable in the market and are therefore designated as Level 3 within the valuation hierarchy. The most significant fair value determinations for non-financial assets and liabilities are related to crude oil and natural gas properties acquired. Refer to Note 2 - Acquisitions and Divestitures for additional information. During the three months ended March 31, 2025 and 2024, we recorded no impairments of proved or unproved properties. Refer to Note 1 – Summary of Significant Accounting Policies in Item 8. Financial Statements and Supplementary Data included in our 2024 Form 10-K for information on our policies for determining fair value of proved and unproved properties and related impairment expense.