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Supplementary Information

12 Months Ended

Dec. 31, 2024

Notes to Financial Statements

Additional Financial Information Disclosure [Text Block]

PRIMEENERGY RESOURCES CORPORATION AND SUBSIDIARIES

SUPPLEMENTARY INFORMATION

CAPITALIZED COSTS RELATING TO

OIL AND GAS PRODUCING ACTIVITIES

(Unaudited)

	As of December 31,
(Thousands of dollars)	2024			2023
Proved Developed oil and gas properties	$	773,330		$	659,792
Proved Undeveloped oil and gas properties		—			—
Total Capitalized Costs		773,330			659,792
Accumulated depreciation, depletion and valuation allowance		(479,424	)		(406,913	)
Net Capitalized Costs	$	293,906		$	252,879

COSTS INCURRED IN OIL AND GAS PROPERTY ACQUISITION,

EXPLORATION AND DEVELOPMENT ACTIVITIES

(Unaudited)

	Years Ended December 31,
(Thousands of dollars)	2024		2023
Development Costs	$	117,424	$	110,700

STANDARDIZED MEASURE OF DISCOUNTED FUTURE

NET CASH FLOWS RELATING TO PROVED OIL AND GAS RESERVES

(Unaudited)

	As of December 31,
(Thousands of dollars)	2024			2023
Future cash inflows	$	981,343		$	1,219,605
Future production costs		(374,816	)		(437,408	)
Future development costs		(105,811	)		(213,823	)
Future income tax expenses		(105,150	)		(119,359	)
Future Net Cash Flows		395,566			449,015
10% annual discount for estimated timing of cash flows		(122,521	)		(170,967	)
Standardized Measure of Discounted Future Net Cash Flows	$	273,045		$	278,048

See accompanying Notes to Supplementary Information

PRIMEENERGY RESOURES CORPORATION AND SUBSIDIARIES

SUPPLEMENTARY INFORMATION

STANDARDIZED MEASURE OF DISCOUNTED FUTURE

NET CASH FLOWS AND CHANGES THEREIN

RELATING TO PROVED OIL AND GAS RESERVES

(Unaudited)

The following are the principal sources of change in the standardized measure of discounted future net cash flows during 2024 and 2023:

	Years Ended December 31,
(Thousands of dollars)	2024			2023
Sales of oil and gas produced, net of production costs	$	(223,042	)	$	(107,742	)
Net changes in prices and production costs		(40,024	)		(98,132	)
Extensions, discoveries and improved recovery		24,848			178,960
Revisions of previous quantity estimates		(39,149	)		(3,877	)
Net change in development costs		70,002			66,552
Reserves sold		(1,371	)		(398	)
Accretion of discount		27,805			24,454
Net change in income taxes		8,896			4,532
Changes in production rates (timing) and other		167,032			(30,836	)
Net change		(5,003	)		33,512
Standardized measure of discounted future net cash flow:
Beginning of year		278,048			244,536
End of year	$	273,045		$	278,048

See accompanying Notes to Supplementary Information

PRIMEENERGY RESOURCES CORPORATION AND SUBSIDIARIES

SUPPLEMENTARY INFORMATION

RESERVE QUANTITY INFORMATION

Years Ended December 31, 2024 and 2023

(Unaudited)

	As of December 31,
	2024									2023
	Oil (MBbls)			NGL’s (MBbls)			Gas (MMcf)			Oil (MBbls)			NGLs (MBbls)			Gas (MMcf)
Proved Developed Reserves:
Beginning of year		5,757			3,676			24,749			4,143			2,497			22,277
Extensions, discoveries and improved recovery		186			132			859			843			467			2,391
Revisions of previous estimates		(745	)		(385	)		(983	)		(1,101	)		(515	)		(4,796	)
Converted from undeveloped reserves		4,854			4,509			20,791			3,028			1,833			9,030
Production		(2,556	)		(1,284	)		(7,766	)		(1,144	)		(606	)		(4,127	)
End of year		7,443			6,597			37,489			5,757			3,676			24,749
Proved Undeveloped Reserves:
Beginning of year		6,254			5,156			24,470			3,028			1,833			9,030
Extensions, discoveries and improved recovery		3,166			1,670			8,327			6,254			5,156			24,470
Revisions of previous estimates		(1,400	)		(647	)		(3,680	)		—			—			—
Converted to developed reserves		(4,854	)		(4,509	)		(20,791	)		(3,028	)		(1,833	)		(9,030	)
Reserves Sold		—			—			—			—			—			—
End of year		3,166			1,670			8,326			6,254			5,156			24,470
Total Proved Reserves at the End of the Year		10,609			8,267			45,815			12,011			8,832			49,219

RESULTS OF OPERATIONS FROM OIL AND GAS PRODUCING ACTIVITIES

Years Ended December 31, 2024 and 2023

(Unaudited)

	Years Ended December 31,
(Thousands of dollars)	2024		2023
Revenue:
Oil and gas sales	$	223,042	$	107,742
Costs and Expenses:
Lease operating expenses		59,853		39,004
Depreciation, depletion and accretion		77,229		31,660
Income tax expense		16,884		5,797
Total Costs and Expenses		153,966		76,461
Results of Operations from Producing Activities (excluding corporate overhead and interest costs)	$	69,076	$	31,281

See accompanying Notes to Supplementary Information

PRIMEENERGY RESOURCES CORPORATION AND SUBSIDIARIES

NOTES TO SUPPLEMENTARY INFORMATION

(Unaudited)

1. Presentation of Reserve Disclosure Information

Reserve disclosure information is presented in accordance with U.S. generally accepted accounting principles. The Company’s reserves include amounts attributable to non-controlling interests in the Partnerships. These interests represent less than 10% of the Company’s reserves.

2. Determination of Proved Reserves

The estimates of the Company’s proved reserves were determined by an independent petroleum engineer in accordance with U.S. generally accepted accounting principles. The estimates of proved reserves are inherently imprecise and are continually subject to revision based on production history, results of additional exploration and development and other factors. Estimated future net revenues were computed by reserves, less estimated future development and production costs based on current costs.

Proved reserve quantity estimates are subject to numerous uncertainties inherent in the estimation of quantities of proved reserves and in the projection of future rates of production and the timing of development expenditures. The accuracy of such estimates is a function of the quality of available data and of engineering and geological interpretation and judgment. Results of subsequent drilling, testing and production may cause either upward or downward revision of previous estimates. Further, the volumes considered to be commercially recoverable fluctuate with changes in prices and operating costs. The Company emphasizes that proved reserve estimates are inherently imprecise and that estimates of new discoveries are more imprecise than those of currently producing oil and gas properties. Accordingly, these estimates are expected to change as additional information becomes available in the future.

3. Results of Operations from Oil and Gas Producing Activities

The results of operations from oil and gas producing activities were prepared in accordance with U.S. generally accepted accounting principles. General and administrative expenses, interest costs and other unrelated costs are not deducted in computing results of operations from oil and gas activities.

4. Standardized Measure of Discounted Future Net Cash Flows and Changes Therein Relating to Proved Oil and Gas Reserves

The standardized measure of discounted future net cash flows relating to proved oil and gas reserves and the changes of standardized measure of discounted future net cash flows relating to proved oil and gas reserves were prepared in accordance with U.S. generally accepted accounting principles.

Future cash inflows are computed as described in Note 2 by applying current prices to year-end quantities of proved reserves.

Future production and development costs are computed estimating the expenditures to be incurred in developing and producing the oil and gas reserves at year-end, based on year-end costs and assuming continuation of existing economic conditions.

Future income tax expenses are calculated by applying the U.S. tax rate to future pre-tax cash inflows relating to proved oil and gas reserves, less the tax basis of properties involved. Future income tax expenses give effect to permanent differences and tax credits and allowances relating to the proved oil and gas reserves.

Future net cash flows are discounted at a rate of 10% annually (pursuant to applicable guidance) to derive the standardized measure of discounted future net cash flows. This calculation does not necessarily represent an estimate of fair market value or the present value of such cash flows since future prices and costs can vary substantially from year-end and the use of a 10% discount figure is arbitrary.

5. Changes in Reserves

The 2024 and 2023 extensions and discoveries reflect the drilling activity in the Company’s West Texas and Mid-Continent areas. The Company is employing technologies to establish proved reserves that have been demonstrated to provide consistent results capable of repetition. The technologies and economic data being used in the estimation of its proved reserves include, but are not limited to, electrical logs, radioactivity logs, geologic maps, production data and well test data. The estimated reserves of wells with sufficient production history are estimated using appropriate decline curves. Estimated reserves of producing wells with limited production history and for undeveloped locations are estimated using performance data from analogous wells in the area. These wells are considered analogous based on production performance from the same formation and with similar completion techniques. Future development plans are reflective of the current commodity prices and have been established based on an expectation of available cash flows from operations and availability under our revolving credit facility.