Commitments And Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 2006 Gulf Coast Acquisition [Member]	Dec. 31, 2012 2006 Gulf Coast Acquisition [Member]	Dec. 31, 2006 2006 Gulf Coast Acquisition [Member]	Dec. 31, 2013 2013 East Texas Properties [Member]	Dec. 31, 2013 2013 East Texas Acquisition And Prize Acquisition [Member]	Dec. 31, 2012 2013 East Texas Acquisition And Prize Acquisition [Member]	Apr. 20, 2012 Prize [Member]
Commitments And Contingencies [Line Items]
Quarterly administration fee equal to percentage of adjusted EBITDA due to QRM	3.50%	3.50%
Escrow deposit related to abandonment and remediation obligations			$ 10,700,000	$ 10,700,000	$ 10,700,000
Period of time escrow in effect after abandonment and remediation obligations			3 years
Maximum date escrow will be returned			December 31, 2026
Issued letter of credit in addition to escrow			23,500,000		3,000,000
Additional line of credit issued each year to seller			3,000,000
Environmental liability						500,000	2,300,000	1,900,000	1,891,000
Operating lease commitment	$ 26,800,000	$ 26,800,000
Lease expiration date	Dec. 31, 2022