AmeriGas Partners, L.P.

Brookfield Infrastructure Partners, L.P.

Energy Transfer Partners, L.P.

Ferrellgas Partners, L.P.

Kinder Morgan Energy Partners, L.P.

NuStar Energy, L.P.

Plains All American Partners, L.P.

Pope Resources, L.P.

StoneMor Partners, L.P.

Suburban Propane Partners, L.P.

TC Pipelines, L.P.

Williams Pipeline Partners, L.P.