Related by context. Frequent words. (Click for all words.) 71 Nabors Industries Ltd. 66 Schlumberger NYSE SLB 66 Allis Chalmers Energy 65 NYSE HAL 65 NYSE SLB 64 NYSE NOV 64 Atwood Oceanics 64 ENSCO International 62 NYSE RRC 62 GeoResources Inc. 61 Brigham Exploration 61 Rosetta Resources 61 Diamond Offshore Drilling 60 Newfield Exploration Company 60 Schlumberger SLB 60 Hercules Offshore 60 Harvest Natural Resources 60 Concho Resources Inc. 60 Ensco International 60 NYSE PDE 60 Whiting Petroleum Corporation 60 Transocean NYSE RIG 59 Overseas Shipholding 59 Crimson Exploration 59 Approach Resources 59 Transocean RIG 59 Gasco Energy 59 McMoRan Exploration Co. 59 Cimarex Energy 59 Flotek Industries Inc. 58 Whiting Petroleum 58 NYSE MRO 58 Newfield Exploration 57 Comstock Resources 57 Parallel Petroleum 57 NYSE COG 57 Hercules Offshore Inc. 57 Trico Marine Services 57 Ultra Petroleum 57 Oceaneering International 57 NYSE APC 57 Copano Energy LLC 57 Patterson UTI Energy 57 Carrizo Oil & 57 Vanguard Natural Resources 56 Royale Energy 56 Brigham Exploration Company 56 Dril Quip 56 NYSE TSO 56 National Oilwell Varco 56 Callon Petroleum Company 56 NYSE HES 56 Precision Drilling Trust 56 Cimarex Energy Co. 56 NYSE ACI 56 Anworth Mortgage Asset 56 NFX 56 Nabors Industries 55 Corporation NYSE CHK 55 NYSE XTO 55 EXCO Resources Inc. 55 BEXP 55 NYSE ECA 55 Abraxas Petroleum Corporation 55 Teekay Tankers 55 Cal Dive International 55 Energy XXI 54 Chevron NYSE CVX 54 National Oilwell 54 Montpelier Re Holdings 54 NYSE CHK 54 Crosstex Energy 54 Exxon Mobil NYSE XOM 54 NYSE FCX 54 BPZ Energy 54 Newfield Exploration Co. 54 NYSE PCX 54 Bronco Drilling 53 American Tanker Shipping 53 Occidental Petroleum Corporation 53 TODCO 53 PetroQuest 53 Interesting Options Volume 53 Pacific Rubiales Energy 53 DryShips 53 Legacy Reserves 53 Petrohawk Energy Corporation 53 NYSE COP 53 Halliburton HAL 53 Schlumberger Limited 53 Tsakos Energy Navigation 52 Anadarko Petroleum 52 Endurance Specialty Holdings 52 Overseas Shipholding Group 52 HAMILTON Bermuda BUSINESS WIRE 52 NYSE PBR 52 Options Trader Alert 52 Baytex Energy Trust 52 ExxonMobil XOM 52 Hornbeck Offshore 52 GMXR