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Alliance Resource Partners, L.P.
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AllianceBernstein
Holding,
L.P.
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AmeriGas Partners, L.P.
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The Blackstone Group L.P.
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Blueknight Energy Partners, L.P.
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Boardwalk Pipeline Partners, LP
Brookfield Infrastructure Partners L.P.
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Buckeye Partners, L.P.
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Calumet Specialty Products Partners, L.P.
Compass Diversified Holdings
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Dorchester Minerals, L.P.
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Enbridge Energy Partners, L.P.
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Energy Transfer Partners, L.P.
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Enterprise Products Partners L.P.
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Ferrellgas Partners, L.P.
Genesis Energy, L.P.
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Inergy, L.P.
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Kinder Morgan Energy Partners, L.P.
Linn Energy, LLC
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Magellan Midstream Partners, L.P.
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Martin Midstream Partners L.P.
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Natural Resource Partners L.P.
NGL Energy Partners LP
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NuStar Energy L.P.
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ONEOK Partners, L.P.
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Penn Virginia Resource Partners, L.P.
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Plains All American Pipeline, L.P.
Rentech Nitrogen Partners, L.P.
Rhino Resource Partners LP
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StoneMor Partners, L.P.
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Sunoco Logistics Partners, L.P.
Targa Resources Partners LP
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TC PipeLines, LP
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Terra Nitrogen Company, L.P.
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W.P. Carey & Co. LLC