• Alliance Resource Partners, L.P.

  • AmeriGas Partners, L.P.

  • Compressco Partners, L.P.

  • DCP Midstream Partners, LP

  • Energy Transfer Partners, L.P.

  • Enterprise Products Partners L.P.

  • EV Energy Partners, L.P.

  • Exterran Partners, L.P.

  • Ferrellgas Partners, L.P.

  • Genesis Energy, L.P.

  • Inergy, L.P.

  • Kinder Morgan Energy Partners, L.P.

  • Linn Energy, LLC

  • MarkWest Energy Partners, L.P.

  • Natural Resource Partners L.P.

  • Penn Virginia Resource Partners, L.P.

  • Plains All American Pipeline, L.P.

  • Regency Energy Partners LP

  • Rhino Resource Partners LP

  • StoneMor Partners, L.P.

West Virginia