AmeriGas Partners, L.P.

El Paso Pipeline Partners, L.P.

Enbridge Energy Partners, L.P.

Energy Transfer Partners, L.P.

Enterprise Products Partners L.P.

Ferrellgas Partners, L.P.

Genesis Energy, L.P.

Global Partners LP

Inergy, L.P.

Kinder Morgan Energy Partners, L.P.

Magellan Midstream Partners, L.P.

Natural Resource Partners L.P.

NuStar Energy L.P.

Plains All American Partners, L.P.

StoneMor Partners, L.P.

Suburban Propane Partners, L.P.

Targa Resources Partners LP

TransMontaigne Partners, L.P.

W.P. Carey & Co. LLC

Williams Partners L.P.