Natural Gas and Oil Exploration, Development and Production Activities (Tables)

6 Months Ended

Jun. 30, 2025

Extractive Industries [Abstract]

Capitalized Costs and Accumulated Depreciation, Depletion and Amortization

Capitalized Costs and Accumulated Depreciation, Depletion and Amortization (a)

	June 30, 2025			December 31, 2024
	(in thousands)
Natural gas properties:
Properties subject to depletion	$	11,277,340		$	11,058,771
Unproved properties		833,743			819,656
Total		12,111,083			11,878,427
Accumulated depletion and depreciation		(5,575,986	)		(5,456,727	)
Net capitalized costs	$	6,535,097		$	6,421,700

(a)Includes capitalized asset retirement costs and the associated accumulated amortization.

Costs Incurred for Property Acquisition, Exploration and Development

Costs Incurred for Property Acquisition, Exploration and Development (b)

	Six Months Ended June 30, 2025		Year Ended December 31, 2024
	(in thousands)
Acquisitions:
Acreage purchases	$	27,542	$	57,869
Development		268,507		577,093
Exploration:
Drilling		783		12,569
Expense		13,606		25,489
Stock-based compensation expense		713		1,354
Gas gathering facilities:
Development		3,451		4,336
Subtotal		314,602		678,710
Asset retirement obligations		2,327		13,845
Total costs incurred	$	316,929	$	692,555

(b) Includes costs incurred whether capitalized or expensed.