Related by context. Frequent words. (Click for all words.) 75 Concho Resources 72 Cimarex Energy 71 Whiting Petroleum 71 NGAS Resources 71 BreitBurn Energy Partners 69 Brigham Exploration 69 Approach Resources 69 GMX Resources 68 Newpark Resources 68 Uranerz Energy 67 Contango Oil & 66 CRZO 66 Harvest Natural Resources 66 Rockwood Holdings 66 BPZ Resources Inc. 66 ENSCO International 66 Energy XXI Bermuda 65 McMoRan Exploration 65 VAALCO Energy 65 Anadarko Petroleum APC 65 Crimson Exploration 65 Vanguard Natural Resources 64 GeoResources Inc. 64 EXCO Resources 64 Magnum Hunter Resources 64 Comstock Resources 64 Newfield Exploration 64 GMX Resources Inc. 63 Overseas Shipholding 63 Concho Resources Inc. 63 Teekay LNG Partners 63 Teekay Offshore Partners 63 ION Geophysical 63 Occidental Petroleum NYSE OXY 63 Amtech Systems 63 Rosetta Resources 63 Telestone Technologies 62 Parallel Petroleum 62 Nalco Holding 62 NYSE OXY 62 Bronco Drilling 62 Abraxas Petroleum 62 Golar LNG 62 Questcor Pharmaceuticals 62 Vantage Drilling Company 62 Royale Energy 62 Atwood Oceanics 61 Newfield Exploration Company 61 NYSE PXP 61 Allis Chalmers Energy 61 Brigham Exploration Company 61 Frontera Resources 61 BMRN 61 Silgan Holdings 61 NYSE RRC 61 Calumet Specialty Products 60 Ardea Biosciences 60 Copano Energy 60 Tetra Technologies 60 LINN Energy 60 Ultra Petroleum 60 Innophos Holdings Inc. 60 HLTH Corporation 60 BPZ 60 PetroQuest 60 Sterling Bancshares 60 Westlake Chemical 60 DCP Midstream Partners 60 Cheniere Energy Partners LP 60 PacWest Bancorp 60 Toreador Resources Corporation 60 EOG Resources EOG 60 BBEP 60 Renesola 60 Medicis Pharmaceutical 60 Sonic Solutions SNIC 60 Cheniere Energy 60 Whiting Petroleum Corporation 60 AMCOL International 60 Integrys Energy 60 NYSE EQT 60 BEXP 60 QEP Resources 60 PetroQuest Energy Inc. 60 MKS Instruments 59 Carrizo Oil & 59 AMB Property 59 Atwood Oceanics Inc. 59 Occidental Petroleum OXY 59 Rexahn Pharmaceuticals 59 GeoMet Inc. 59 SXCI 59 GMXR 59 Atlas Pipeline Partners 59 HDY 59 NYSE UPL 59 Keryx Biopharmaceuticals 59 Gran Tierra 59 BRKR 59 GeoMet 59 Hercules Offshore