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Enterprise Products Partners (EPD)
Eni SpA (E)
Kinder Morgan Inc (KMI)
Schlumberger NV (SLB)
Williams Companies Inc (WMB)
EOG Resources Inc (EOG)
Ecopetrol SA (EC)
Marathon Petroleum Corp (MPC)
Canadian Natural Resources Ltd (CNQ)
Suncor Energy Inc. (SU)
Valero Energy Corporation (VLO)
MPLX LP (MPLX)
Energy Transfer LP Unit (ET)
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Phillips 66 (PSX)
Hess Corp. (HESS)
Cheniere Energy Partners LP (CQP)
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Halliburton Company (HAL)
ONEOK, Inc (OKE)
