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PLANT AND EQUIPMENT AND MINERAL PROPERTIES (Tables)

6 Months Ended

Jun. 30, 2023

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

The following is a summary of property, plant and equipment, net:

			June 30, 2023																		December 31, 2022
			Cost						Accumulated Depreciation						Net Book Value						Cost						Accumulated Depreciation						Net Book Value
Property, plant and equipment
Nichols Ranch			$	29,210					$	(21,238)					$	7,972					$	29,210					$	(20,221)					$	8,989
Pinyon Plain			2,437						(784)						1,653						1,617						(714)						903
Equipment and other			20,273						(12,471)						7,802						15,009						(12,239)						2,770
Property, plant and equipment total			$	51,920					$	(34,493)					$	17,427					$	45,836					$	(33,174)					$	12,662

As of December 31, 2022, the net book value of the property, plant and equipment attributable to Alta Mesa was $8.21 million, which was included in Property, plant and equipment and other assets held for sale, net on the Condensed Consolidated Balance Sheets.

Schedule of Summary of Mineral Properties

The following is a summary of mineral properties:

			June 30, 2023						December 31, 2022
Mineral properties
Sheep Mountain			$	34,183					$	34,183
Bahia Project			29,130						—
Uranerz ISR properties			25,974						25,974
Roca Honda			22,095						22,095
Pinyon Plain			3,046						—
Other			1,287						1,287
Mineral properties total			$	115,715					$	83,539

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Schedule of Summary of Mineral Properties

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 360
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482099/360-10-50-1

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