Contingencies And Contractual Commitments (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Contractual Obligation, Fiscal Year Maturity Schedule

At December 31, 2016, the minimum future transportation and storage fees under transportation agreements having terms in excess of one year are as follows:

	(In thousands)
2017	$	136,052
2018	135,048
2019	123,105
2020	110,929
2021	98,834
Thereafter	894,033
Total	$	1,498,001