Contingencies and Commitments (Tables)

6 Months Ended

Jun. 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 discussed above, are presented below.

	June 30, 2015
	($ in millions)
2015	$	914
2016	1,936
2017	1,941
2018	1,723
2019	1,437
2020 – 2099	6,227
Total	$	14,178