Related by context. Frequent words. (Click for all words.) 68 Willbros 58 Harvest Natural Resources 54 Allis Chalmers Energy 54 Hercules Offshore Inc. 53 Halliburton Co. 52 Patterson UTI Energy 51 Overseas Shipholding Group 51 Oceaneering International 51 Nabors Industries Ltd. 50 Halliburton HAL 50 Diamond Offshore Drilling 50 Halliburton 48 Hornbeck Offshore Services 48 Helix Energy 48 subsidiary KBR 48 Hercules Offshore 48 Crosstex Energy 48 FMC Technologies 48 ENGlobal 48 National Oilwell Varco 47 Whiting Petroleum Corporation 47 offshore drilling contractor 47 Schlumberger Limited 47 oilfield 47 FMC Technologies Inc. 47 Great Lakes Dredge 47 Grant Prideco 47 Rosetta Resources 47 Lufkin Industries 46 KBR 46 GlobalSantaFe 46 Vanguard Natural Resources 46 Nabors Industries 46 MasTec 45 Ensco 45 Geokinetics 45 Subsea 7 45 Diamond Offshore 45 Saipem 45 Comstock Resources 45 Precision Drilling Trust 45 Omega Protein 44 Technip 44 TEPPCO Partners LP 44 Grey Wolf 44 Chevron Corp. 44 Teekay 44 McMoRan Exploration Co. 44 Schlumberger Ltd 43 Dynegy 43 Cal Dive 43 Quanta Services 43 EMCOR Group 43 Oceaneering 43 contractor KBR 43 EXCO Resources Inc. 43 Petroleum Geo 43 RigNet 43 Kratos Defense & 43 NYSE FLR 43 Benchmark Electronics 43 Venoco 43 Transocean RIG 43 SBM Offshore 43 Carrizo Oil & 43 Precision Drilling 43 Jacobs Engineering 43 Fluor Corporation 43 EOG Resources 42 Eagle Bulk Shipping 42 Builders FirstSource 42 Foster Wheeler 42 Occidental Petroleum Corporation 42 Norsk Hydro ASA 42 TransMontaigne 42 Mariner Energy 42 Acergy 42 Integrated Electrical 42 Applied Signal Technology 42 Tetra Tech 42 Core Laboratories 42 Patterson UTI 42 NuStar Energy LP 42 MDU Resources Group 42 Schlumberger Ltd. 41 Lodgian 41 Sempra Energy NYSE SRE 41 Fluor 41 Eni SpA 41 Fluor Corp. 41 Helmerich & 41 Martin Midstream Partners 41 Transfer Partners LP 41 Transocean 41 Arbor Realty Trust 41 Harsco Corporation 41 Dice Holdings 41 URS Corp. 40 Products Partners LP 40 Cleco Corp. 40 Oneok