AmeriGas Partners, L.P.

Blueknight Energy Partners, L.P.

Calumet Specialty Products Partners, L.P.

Cedar Fair, L.P.

Centerline Holding Company

DCP Midstream Partners, L.P.

Energy Transfer Partners, L.P.

Exterran Partners, L.P.

Ferrellgas Partners, L.P.

Inergy, L.P.

K-Sea Transportation Partners, L.P.

Kinder Morgan Energy Partners, L.P.

Magellan Midstream Partners, L.P.

MarkWest Energy Partners, L.P.

Natural Resource Partners, L.P.

NTS Realty Holdings, L.P.

NuStar Energy, L.P.

Penn Virginia Resource Partners, L.P.

Rio Vista Energy Partners, L.P.

Spectra Energy Partners, L.P.

Star Gas Partners, L.P.

StoneMor Partners, L.P.

Suburban Propane Partners, L.P.

Sunoco Logistics Partners, L.P.

TransMontaigne Partners, L.P.

W.P. Carey & Co. LLC