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

6 Months Ended

Jun. 30, 2013

Costs Incurred for Property Acquisition, Exploration and Development

	Six Months Ended June 30, 2013
	(in thousands)
Acreage purchases	$	31,049		$	188,843
Development		500,534			1,049,129
Exploration:
Drilling		141,838			309,816
Expense		27,818			65,758
Stock-based compensation expense		2,030			4,049
Gas gathering facilities:
Development		21,081			41,035
Subtotal		724,350			1,658,630
Asset retirement obligations		(2,385	)		57,982
Total costs incurred	$	721,965		$	1,716,612

(a) Includes cost incurred whether capitalized or expensed.

- Definition

Tabular disclosure of the aggregate of costs (whether the costs are capitalized or charged to expense at the time they are incurred ) incurred for the year in oil and gas property acquisition, exploration and development activities.

+ References+ Details