Midstream
  • Boardwalk Pipeline Partners (BWP)
  • Buckeye Partners LP (BPL)
  • Cheniere Energy Inc (LNG)
  • Cheniere Energy Partners (CQP)
  • Cheniere Energy Partners LP Holdings (CQH)
  • DCP Midstream Partners LP (DPM)
  • Energy Transfer Equity LP (ETE)
  • Energy Transfer Partners LP (ETP)
  • Enterprise Products Partners LP (EPD) 
  • EQT GP Holdings, LP (EQGP)
  • EQT Midstream Partners LP (EQM)
  • Kinder Morgan Inc (KMI)
  • Magellan Midstream Partners LP (MMP)
  • National Fuel Gas (NFG)
  • NuStar Energy LP (NS)
  • NuStar GP Holdings, LLC (NSH)
  • ONEOK Corporation (OKE)
  • ONEOK Partners LP (OKS)
  • Plains All American Pipeline LP (PAA)
  • Plains GP Holdings (PAGP)
  • Rice Midstream Partners (RMP)    
  • SemGroup Corporation (SEMG)
  • Spectra Energy Partners (SEP)
  • Summit Midstream Partners LP (SMLP)
  • Sunoco Logistics Partners LP (SXL)
  • Tallgrass Energy Partners (TEP)
  • Tallgrass Energy GP, LP (TEGP)
  • Targa Resources Corp (TRGP)
  • Williams Companies (WMB)
  • Williams Partners (WPZ)
Utilities
  • American States Water (AWR)
  • American Water Works (AWK)
  • Aqua America (WTR)
  • Atmos Energy (ATO)
  • California Water Service Group (CWT)
  • Chesapeake Utilities (CPK)
  • Eversource Energy (ES)
  • New Jersey Resources (NJR)
  • NiSource Inc. (NI)
  • Northwest Natural Gas (NWN)
  • ONE Gas (OGS)       
  • Sempra Energy (SRE)    
  • South Jersey Industries (SJI)
  • Southwest Gas (SWX)
  • Spark Energy (SPKE)
  • Spire Inc. (SR)
  • Vectren Corporation (VVC)
  • WGL Holdings (WGL)
  • Wisconsin Energy Corporation (WEC)
Exploration & Production
  • Callon Petroleum Company (CPE)
  • Carrizo Oil & Gas (CRZO)
  • Centennial Resource Development Inc. (CDEV)
  • Cimarex Energy (XEC)
  • Comstock Resources (CRK)
  • Concho Resources (CXO)
  • Energen Corp. (EGN)
  • EOG Resources (EOG)
  • EQT Corporation (EQT)    
  • Gulfport Energy Corp. (GPOR)
  • Pioneer Natural Resources (PXD)
  • Rice Energy (RICE)
  • RSP Permian (RSPP)    
  • Southwestern Energy (SWN)
  • Unit Corporation (UNT)