


ARENA ENERGY, LLC
SAUDI ARAMCO ROWAN OFFSHORE DRILLING COMPANY (A KSA JOINT VENTURE)
WALTER OIL & GAS CORPORATION
PERMIAN RESOURCES MANAGEMENT, LLC
SEISMIC EXCHANGE, INC.
TEXLAND PETROLEUM, L.P.
REES-JONES HOLDINGS, LLC
JETTA OPERATING COMPANY, INC.
CANVAS ENERGY, L.L.C.
SUPREME SERVICE & SPECIALTY CO., INC.