Related by context. Frequent words. (Click for all words.) 60 MarkWest Energy Partners LP 57 Transfer Partners LP 56 Products Partners LP 56 Vanguard Natural Resources 55 Buckeye Partners LP 54 Sunoco Logistics Partners LP 54 Energy Partners LP 53 DCP Midstream Partners LP 52 Transfer Equity 52 NuStar 52 Crosstex Energy 52 Kinder Morgan Energy 52 MarkWest Energy Partners 51 Buckeye GP 51 Kinder Morgan 51 Martin Midstream Partners 50 TEPPCO Partners LP 50 NuStar Energy LP 50 Atlas Pipeline Holdings 50 El Paso Pipeline 50 Inergy LP 49 Atlas Pipeline Partners LP 49 Inergy 49 TC PipeLines LP 48 Whiting Petroleum Corporation 48 EXCO Resources Inc. 48 Inter Pipeline 48 Crosstex Energy LP 47 TEPPCO 47 Harvest Natural Resources 47 BreitBurn 47 Atlas Pipeline 47 ONEOK Partners 47 Common Units 46 Quest Resource 46 MarkWest 46 Quicksilver Resources 46 SemGroup LP 46 ONEOK 46 SemGroup Energy 46 Motiva Enterprises LLC 45 Tortoise Energy 45 Petroflow 45 Resource Partners LP 45 Border Pipeline 45 Pipe Line 45 DCP Midstream 45 Cal Dive 45 Pipeline 44 Spectra Energy Corp 44 Energy XXI 44 Teekay Offshore 44 Partners LP 44 Pioneer Natural Resources 44 Oneok 44 Cheniere 44 Pengrowth Energy 44 Hercules Offshore 44 Mariner Energy 44 Denbury Resources Inc. 44 Gastar 43 Western Refining 43 AmeriGas 43 McMoRan Exploration Co. 43 TransMontaigne 43 Natural Gas 43 Commercial Lines 43 Enogex 43 Partners LP NYSE 43 Baytex Energy Trust 43 SGLP 43 Comstock Resources 42 Sempra Energy NYSE SRE 42 Gas Transmission 42 Enbridge Energy 42 CVR Energy 42 Magnum Hunter 42 ARLP 42 Allis Chalmers Energy 42 Carrizo Oil & 42 midstream 42 Anadarko Petroleum Corporation 42 PVG 42 ConocoPhillips 42 Denbury 42 Copano 41 TXCO 41 EVEP 41 NYSE APC 41 Royalty Trust 41 Petrohawk 41 Rosetta Resources 41 Helix Energy 41 Cal Dive International 41 McMoRan 41 Cimarex 41 GMXR 41 Pengrowth 41 GreenHunter Energy 41 Lyondell 41 Teekay Corporation