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Supplementary Information - Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Future cash inflows	$ 994,842	$ 501,431
Future production costs	(378,160)	(207,697)
Future development costs	(95,746)	(18,507)
Future income tax expenses	(110,439)	(57,798)
Future Net Cash Flows	410,497	217,429
10% annual discount for estimated timing of cash flows	(165,961)	(81,623)
Standardized Measure of Discounted Future Net Cash Flows	$ 244,536	$ 135,806

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- Definition

Standardized Measures Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves.

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- Definition

Amount of estimated future accumulated cash inflow from the sale of proved oil and gas reserves.

+ References

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-Publisher SEC
-Name Form 20-F
-Section Item 18
-Subsection Instruction 2

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Amount of estimated future accumulated cash outflow for costs to be incurred in developing proved oil and gas reserves.

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-Publisher SEC
-Name Form 20-F
-Section Item 18
-Subsection Instruction 2

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Amount of estimated future accumulated cash outflow for income tax, based on the future income less future expense derived from production and sale of proved oil and gas reserves.

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-Name Form 20-F
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Amount, after future accumulated cash outflow for development and production costs and future income tax, of estimated future accumulated cash inflow from the sale of proved oil and gas reserves.

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-Publisher SEC
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-Subsection Instruction 2

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Amount of discount on future accumulated cash inflow, after deducting future accumulated cash outflow for development and production costs and future income tax, from sale of proved oil and gas reserves, using a discount rate of 10 percent a year.

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