Contingencies and Commitments (Tables)

9 Months Ended

Sep. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Gathering, Processing and Transportation Commitments

The aggregate undiscounted commitments under our gathering, processing and transportation agreements, excluding any reimbursement from working interest and royalty interest owners, credits for third-party volumes or future costs under cost-of-service agreements, are presented below.

	September 30, 2015
	($ in millions)
2015	$	461
2016	1,927
2017	1,939
2018	1,741
2019	1,452
2020 – 2099	6,828
Total	$	14,348