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Supplemental Oil and Natural Gas Disclosures (Unaudited) - Discounted Future Net Cash Flows (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 USD ($) $ / MMBTU $ / bbl | Dec. 31, 2020 USD ($) $ / bbl $ / MMBTU | Dec. 31, 2019 USD ($) $ / bbl $ / MMBTU | Dec. 31, 2018 USD ($)
Crude Oil |  |  |  |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items] |  |  |  |
Average benchmark price (in USD per unit) | $ / bbl | 66.56 | 39.56 | 55.69 |
Crude Oil | Arithmetic Average |  |  |  |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items] |  |  |  |
Average benchmark price (in USD per unit) | $ / bbl | 66.55 |  |  |
Natural Gas |  |  |  |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items] |  |  |  |
Average benchmark price (in USD per unit) | $ / MMBTU | 3.60 | 1.99 | 2.62 |
Natural Gas | Arithmetic Average |  |  |  |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items] |  |  |  |
Average benchmark price (in USD per unit) | $ / MMBTU | 3.64 |  |  |
Consolidated operations |  |  |  |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items] |  |  |  |
Future cash inflows | $ 21,063,117 | $ 8,232,932 | $ 15,745,942 |
Future production costs | (10,194,648) | (4,280,563) | (6,766,410) |
Future development costs | (1,477,562) | (1,353,957) | (2,323,420) |
Future income taxes | (352,136) | (30,155) | (63,136) |
Future net cash flows | 9,038,771 | 2,568,257 | 6,592,976 |
Annual discount of 10% for estimated timing | (4,080,471) | (1,240,397) | (3,482,128) |
Standardized measure of discounted future net cash flows | 4,958,300 | 1,327,860 | 3,110,848 | $ 4,207,347
Equity affiliate |  |  |  |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items] |  |  |  |
Future cash inflows | 99,290 | 0 | 0 |
Future production costs | (55,371) | 0 | 0 |
Future development costs | (2,309) | 0 | 0 |
Future income taxes | (1,730) | 0 | 0 |
Future net cash flows | 39,880 | 0 | 0 |
Annual discount of 10% for estimated timing | (16,702) | 0 | 0 |
Standardized measure of discounted future net cash flows | $ 23,178 | $ 0 | $ 0 | $ 0

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