Costs Incurred for Property Acquisition, Exploration and Development

6 Months Ended

Jun. 30, 2021

Extractive Industries [Abstract]

Costs Incurred for Property Acquisition, Exploration and Development

(19) Costs Incurred for Property Acquisition, Exploration and Development (a)

	Six Months Ended June 30, 2021		Year Ended December 31, 2020
	(in thousands)
Acquisitions:
Acreage purchases	$	10,142	$	26,166
Development		207,354		369,093
Exploration:
Drilling		5,432		7,709
Expense		9,818		31,376
Stock-based compensation expense		748		1,279
Gas gathering facilities:
Development		2,179		3,694
Subtotal		235,673		439,317
Asset retirement obligations		2,098		2,610
Total costs incurred	$	237,771	$	441,927

(a) Includes costs incurred whether capitalized or expensed.