The capitalized costs incurred (excluded from amortization), as of the date of the balance sheet, to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10.(c)(7)(ii))
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Capitalized costs of unproved properties incurred for any combination mineral interests acquisitions and other costs not previously disclosed within this table.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-URI https://asc.fasb.org/topic&trid=2145477

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 13
-URI https://asc.fasb.org/extlink&oid=126939881&loc=d3e61901-109447

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The capitalized costs incurred (excluded from amortization), as of the date of the balance sheet, to obtain access to proved reserves and to provide facilities for extracting, treating, gathering and storing the oil and gas.

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The capitalized costs incurred (excluded from amortization), as of the date of the balance sheet, in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. Exploration costs also include costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, the maintenance of land and lease records, dry hole contributions and bottom hole contributions, costs of drilling and equipping exploratory wells and costs of drilling exploratory-type stratigraphic test wells.

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Property and Equipment (Details 1) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Costs incurred for
Total unproved and unevaluated	$ 977,502	$ 964,714
2022
Costs incurred for
Property acquisition	97,748
Exploration wells	32,364
Development wells	42,543
Total unproved and unevaluated	172,655
2021
Costs incurred for
Property acquisition		110,077
Exploration wells		942
Development wells		1,641
Total unproved and unevaluated		$ 112,660
2020
Costs incurred for
Property acquisition			$ 40,355
Exploration wells			354
Development wells			1,245
Total unproved and unevaluated			41,954
2019
Costs incurred for
Property acquisition			40,140
Exploration wells			802
Development wells			2,506
Total unproved and unevaluated			$ 43,448
2017 and prior
Costs incurred for
Property acquisition				$ 606,740
Exploration wells				36
Development wells				9
Total unproved and unevaluated				$ 606,785
Total
Costs incurred for
Property acquisition	895,060
Exploration wells	34,498
Development wells	47,944
Total unproved and unevaluated	$ 977,502