XML 48 R35.htm IDEA: XBRL DOCUMENT
v3.25.3

Derivative Instruments (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2025
Derivative Instruments |
Schedule of fixed price swap positions, excluding Martica | ​ As of September 30, 2025, the Company’s fixed price swap positions were as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | ​ | ​ | ​ | Average
Commodity / Settlement Period |  | Index |  | Contracted Volume |  | Price
Natural Gas | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
October-December 2025 | ​ | Henry Hub | ​ | 559,891 | MMBtu/day | ​ | $ | 3.66 | /MMBtu
January-December 2026 | ​ | Henry Hub | ​ | 470,000 | MMBtu/day | ​ | ​ | 3.78 | /MMBtu
January-December 2027 | ​ | Henry Hub | ​ | 80,000 | MMBtu/day | ​ | ​ | 3.92 | /MMBtu
Schedule of contract collar positions, excluding Martica | As of September 30, 2025, the Company’s collar contract positions were as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | Weighted | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Average | ​ | Average | ​
Commodity / Settlement Period |  | Index |  | Contracted Volume |  | Ceiling Price |  | Floor Price | ​
Natural Gas | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
January-December 2026 | ​ | Henry Hub | ​ | 500,000 | MMBtu/day | ​ | $ | 5.83 | /MMBtu | ​ | $ | 3.22 | /MMBtu | ​
Schedule of call option and embedded put option arrangements | As of September 30, 2025, the Company’s call option and embedded put option arrangements were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Embedded | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Call Option | ​ | Put Option | ​
Commodity / Settlement Period |  | Index |  | Contracted Volume |  | Strike Price |  | Strike Price |
Natural Gas | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
October-December 2025 | ​ | Henry Hub | ​ | 44,000 | MMBtu/day | ​ | $ | 2.56 | /MMBtu | ​ | $ | 2.56 | /MMBtu | ​
January-December 2026 | ​ | Henry Hub | ​ | 32,000 | MMBtu/day | ​ | ​ | 2.63 | /MMBtu | ​ | ​ | 2.63 | /MMBtu | ​
Summary of the fair values of derivative instruments, which are not designated as hedges for accounting purposes | The table below presents a summary of the fair values of the Company’s derivative instruments and where such values are recorded in the condensed consolidated balance sheets (in thousands).
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | (Unaudited) | ​
​ | ​ | ​ | ​ | December 31, | ​ | September 30, | ​
​ |  | Balance Sheet Location |  | 2024 | ​ | 2025 | ​
Asset derivatives not designated as hedges for accounting purposes: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commodity derivatives—current | ​ | Derivative instruments | ​ | $ | — | ​ | ​ | 16,535 | ​
Embedded derivatives—current | ​ | Derivative instruments | ​ | ​ | 1,050 | ​ | ​ | 888 | ​
Commodity derivatives—noncurrent | ​ | Derivative instruments | ​ | ​ | — | ​ | ​ | 332 | ​
Embedded derivatives—noncurrent | ​ | Derivative instruments | ​ | ​ | 1,296 | ​ | ​ | 306 | ​
Total asset derivatives (1) | ​ | ​ | ​ | ​ | 2,346 | ​ | ​ | 18,061 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Liability derivatives not designated as hedges for accounting purposes: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commodity derivatives—current (2) | ​ | Derivative instruments | ​ | ​ | 31,792 | ​ | ​ | — | ​
Commodity derivatives—noncurrent | ​ | Derivative instruments | ​ | ​ | 17,233 | ​ | ​ | 24,820 | ​
Total liability derivatives (1) | ​ | ​ | ​ | ​ | 49,025 | ​ | ​ | 24,820 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net derivatives liability (1) | ​ | ​ | ​ | $ | (46,679) | ​ | ​ | (6,759) | ​
(1) | The fair value of derivative instruments was determined using Level 2 inputs.
(2) | As of December 31, 2024, $2 million of current commodity derivative liabilities are attributable to the Company’s consolidated VIE, Martica.
Schedule of gross amounts of recognized derivative assets and liabilities, the amounts offset under netting arrangements with counterparties, and the resulting net amounts | The following table sets forth the gross values of recognized derivative assets and liabilities, the amounts offset under master netting arrangements with counterparties, and the resulting net amounts presented in the condensed consolidated balance sheets as of the dates presented, all at fair value (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (Unaudited) | ​
​ | ​ | December 31, 2024 | ​ | September 30, 2025 | ​
​ | ​ | ​ | ​ | ​ | ​ | Net Amounts of | ​ | ​ | ​ | ​ | ​ | Net Amounts of | ​
​ | ​ | Gross | ​ | Gross | ​ | Assets | ​ | Gross | ​ | Gross | ​ | Assets | ​
​ | ​ | Amounts | ​ | Amounts Offset | ​ | (Liabilities) on | ​ | Amounts | ​ | Amounts Offset | ​ | (Liabilities) on | ​
​ |  | Recognized |  | Recognized |  | Balance Sheet |  | Recognized |  | Recognized |  | Balance Sheet | ​
Commodity derivative assets | ​ | $ | 3,482 | ​ | ​ | (3,482) | ​ | ​ | — | ​ | ​ | 84,296 | ​ | ​ | (67,429) | ​ | ​ | 16,867 | ​
Embedded derivative assets | ​ | ​ | 2,346 | ​ | ​ | — | ​ | ​ | 2,346 | ​ | ​ | 1,194 | ​ | ​ | — | ​ | ​ | 1,194 | ​
Commodity derivative liabilities | ​ | ​ | (52,507) | ​ | ​ | 3,482 | ​ | ​ | (49,025) | ​ | ​ | (92,249) | ​ | ​ | 67,429 | ​ | ​ | (24,820) | ​
Summary of derivative fair value gains (losses) | The following table sets forth a summary of derivative fair value gains and losses and where such values are recorded in the unaudited condensed consolidated statements of operations and comprehensive income (loss) (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Statement of | ​ | Three Months Ended | ​ | Nine Months Ended | ​
​ | ​ | Operations | ​ | September 30, | ​ | September 30, | ​
​ |  | Location | ​ | 2024 | ​ | 2025 | ​ | 2024 | ​ | 2025 | ​
Commodity derivative fair value gains (1) | ​ | Revenue | ​ | $ | 18,004 | ​ | ​ | 39,374 | ​ | ​ | 22,726 | ​ | ​ | 22,133 | ​
Embedded derivative fair value gains (losses) (1) | ​ | Revenue | ​ | ​ | 364 | ​ | ​ | (131) | ​ | ​ | (497) | ​ | ​ | (1,152) | ​
(1) | The fair value of derivative instruments was determined using Level 2 inputs.

X
- Definition Tabular disclosure for call option and embedded put option. + References No definition available. + Details
Name: | ar_ScheduleOfCallOptionAndEmbeddedPutOptionTableTextBlock
Namespace Prefix: | ar_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of Company's collar contract positions, excluding the Company's VIE. + References No definition available. + Details
Name: | ar_ScheduleOfFixedCollarContractPositionsTableTextBlock
Namespace Prefix: | ar_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of Company's fixed price swap positions, excluding the Company's VIE. + References No definition available. + Details
Name: | ar_ScheduleOfFixedPriceSwapPositionsTableTextBlock
Namespace Prefix: | ar_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative and other financial assets and liabilities that are subject to offsetting, including master netting arrangements. + References No definition available. + Details
Name: | ar_ScheduleOfGrossAmountsOfRecognizedDerivativeAssetsAndLiabilitiesAmountsOffsetUnderNettingArrangementsWithCounterpartiesAndResultingNetAmountsTableTextBlock
Namespace Prefix: | ar_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 182 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-182 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration