Related by context. Frequent words. (Click for all words.) 59 OGE Energy 58 Crosstex Energy 58 ONEOK 58 Inergy LP 58 Buckeye GP 58 SemGroup Energy 58 Hiland Partners LP 58 DCP Midstream Partners LP 58 Vanguard Natural Resources 57 MarkWest Energy Partners LP 57 NuStar GP Holdings 57 Sunoco Logistics 57 Oneok 57 MarkWest Energy Partners 56 Transfer Equity 56 Enterra Energy 56 EVEP 56 Atlas Pipeline Holdings 56 Targa Resources Partners 56 Energy Partners LP 55 Atlas Pipeline 55 Transfer Partners LP 55 Magnum Hunter 55 Magellan Midstream Partners LP 55 Atlas Pipeline Partners LP 55 Quicksilver Resources 55 Rosetta Resources 55 OGE Energy Corp. 54 Legacy Reserves 54 Enogex 54 CNX Gas 53 BreitBurn 53 Sunoco Logistics Partners LP 53 Whiting Petroleum Corporation 53 ONEOK Partners 53 Martin Midstream Partners 53 TEPPCO Partners LP 52 Approach Resources 52 Royale Energy 52 Crosstex Energy LP 52 Valero LP 52 Peyto Energy 52 El Paso Pipeline 52 Quicksilver Gas Services 52 Ultra Petroleum 52 Bronco Drilling 52 EXCO Resources Inc. 51 Boardwalk Pipeline Partners LP 51 Pengrowth Energy 51 Harvest Natural Resources 50 SandRidge 50 Common Units 50 TEPPCO 50 Teekay Offshore 50 TC PipeLines LP 50 BPZ Energy 50 Allis Chalmers Energy 49 GMXR 49 Buckeye Partners LP 49 Bois d' Arc 49 Petro Vista 49 NorthStar Realty Finance 49 Comstock Resources 49 GlobalSantaFe 49 NGAS 49 McMoRan Exploration Co. 48 Ferrellgas 48 Spectra Energy Corp 48 SandRidge Energy Inc. 48 ExpressJet Holdings Inc. 48 Bronco Drilling Company 48 SemGroup LP 48 MGE Energy 48 Gastar 48 CVR Energy 48 Petrohawk 48 MMLP 48 SemGroup 48 Spectra Energy Partners 48 Resource Partners LP 48 Hercules Offshore 47 Brigham Exploration 47 MarkWest 47 Trico Marine Services 47 Getty Realty 47 TXCO 47 Carrizo Oil & 47 Baytex Energy Trust 47 WGL Holdings 47 Petroflow 47 Axonyx 47 Cano Petroleum 47 Enerplus Resources Fund 47 MDU Resources Group 47 XTO Energy Inc. 47 Denbury Resources Inc. 47 Questar Corp. 47 Magellan Petroleum 46 GreenHunter Energy 46 AmREIT 46 Pipeline LP