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Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2015
Subsequent Events [Abstract]
Subsequent Events	NOTE 12—SUBSEQUENT EVENTS On July 15, 2015, the Company closed a transaction to purchase mineral and royalty interests in the Permian Basin for $7.8 million. On August 12, 2015, the Board approved a prorated distribution for the period May 6, 2015 through June 30, 2015 of $0.1615 per unit for common and subordinated unitholders. Distributions will be payable on August 27, 2015 to unitholders of record at the close of business on August 20, 2015.