Basis of Presentation (Narrative) (Details) - USD ($)		1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 02, 2023	Oct. 31, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock, par value (in dollars per shares)			$ 0.001		$ 0.001		$ 0.001
Weighted average common shares outstanding – basic (in shares)			52,417,000	51,182,000	51,916,000	51,512,000
Number of warrants exercised (in shares)			2,700,000		2,700,000
Write-down of oil and natural gas properties			$ 0	$ 0	$ 0	$ 0
Subsequent Event
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock, par value (in dollars per shares)	$ 0.001
Subsequent Event | Exxon Mobil Corporation
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of shares that can be received (in shares)	0.840
Series A Warrants
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of warrants outstanding (in shares)			1,000,000		1,000,000
Exercise price of warrants (in dollars per share)			$ 32.59		$ 32.59
Number of warrants exercised (in shares)			1,600,000		1,600,000
Series A Warrants | Subsequent Event
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of warrants exercised (in shares)		1,000,000
Issued pursuant to exercise of warrants (in shares)		800,000
Series B Warrants
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of warrants exercised (in shares)			2,700,000		2,700,000
Performance-based and restricted stock units
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Weighted average common shares outstanding – basic (in shares)			1,775,182		1,775,182