Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of minimum future lease payments

The following is a schedule of minimum future lease payments with commitments that have initial or remaining noncancelable lease terms in excess of one year as of September 30, 2015:

Year Ending December 31,	Drilling Rig Commitments		Office and Equipment Leases
	(in thousands)
2016	$	27,317	$	1,743
2017	19,892		2,012
2018	13,031		1,932
2019	—		1,797
2020	—		1,618
Thereafter	—		9,337
Total	$	60,240	$	18,439