2018

  • Chevron Phillips Chemical Company - Cedar Bayou 
  • Chevron Phillips Chemical Company - Drilling Specialties Conroe Plant
  • Chevron Phillips Chemical Company - Pasadena Plastics Complex
  • Chevron Phillips Chemical Company - Port Arthur Plant
  • Chevron Phillips Chemical Company - Sweeny/Old Ocean Facilities
  • Delek US - Krotz Springs Refinery 
  • ExxonMobil Chemicals- Pensacola Special Elastomers Plant
  • ExxonMobil Refining & Supply - Baton Rouge Refinery
  • Flint Hills Resources LLC - Peru Plant
  • LyondellBasell Industries - Corpus Christi Operations
  • LyondellBasell Industries - Equistar Chemicals, LP - Lake Charles Polymers
  • LyondellBasell Industries - Equistar Chemicals, LP - Victoria
  • LyondellBasell Industries - Morris Site
  • Marathon Petroleum Corporation - Dickinson Refinery
  • Marathon Petroleum Corporation - Martinez Refinery
  • Marathon Petroleum Corporation - Salt Lake City Refining Division
  • Oxea Corporation - Bay City
  • Phillips 66 - Billings Refinery
  • Phillips 66 - WRB Refining LP – Borger Refinery
  • Phillips 66 - San Francisco Refinery – Santa Maria Plant
  • Valero Energy Corporation - Ardmore Refinery

2017

  • Andeavor, Dickinson Refinery
  • Andeavor, Mandan Refinery
  • Chevron Phillips Chemical Company LP, Drilling Specialties Conroe Plant
  • Chevron Phillips Chemical Company LP, Port Arthur Plant
  • ExxonMobil Chemical Company, Pensacola Specialty Elastomers Plant
  • LyondellBasell Industries, Edison Catalyst Manufacturing
  • LyondellBasell Industries-Equistar Chemicals, Victoria Site
  • Phillips 66, Alliance Refinery
  • Phillips 66, Wood River Refinery
  • Valero Refining Company, McKee Refinery
  • Valero Refining Company, Wilmington Asphalt Plant

2016

  • BASF-Pasadena CPN
  • Chevron Phillips Chemical Company LP, Borger Plant
  • Chevron Products Company, Salt Lake Refinery
  • ExxonMobil Chemical Company, Baton Rouge Plastics Plant
  • ExxonMobil Refining & Supply, Billings Refinery
  • LyondellBasell Industries, Chocolate Bayou Polymers Facility
  • LyondellBasell Industries, Edison Catalyst Manufacturing
  • LyondellBasell Industries, Equistar Chemicals-Tuscola Facility
  • Phillips 66, Bayway Refinery
  • Phillips 66, Billings Refinery
  • Phillips 66, San Francisco Refinery-Rodeo Plant
  • Phillips 66, San Francisco Refinery-Santa Maria Plant
  • Phillips 66, Sweeny Refinery
  • Valero Refining Company, Wilmington Refinery

2015

  • Chevron Phillips Chemical Company LP, Borger Plant
  • ExxonMobil Chemical Company, Baytown Olefins Plant
  • ExxonMobil Chemical Company, Beaumont Polyethylene Plant
  • LyondellBasell Industries, Chocolate Bayou Polymers Facility
  • LyondellBasell Industries, Corpus Christi Operations
  • LyondellBasell Industries, Matagorda Complex
  • Marathon Petroleum Company LP, Galveston Bay Refinery
  • Shell Oil Products US, Shell Martinez Refinery
  • Tesoro Refining & Marketing Company, Anacortes Refinery
  • Total Petrochemicals & Refining USA, Inc., Bayport HDPE Plant
  • Valero Refining Company, Ardmore Refinery
  • Valero Refining Company, Houston Refinery

2014

  • BP Amoco Chemical Company, BP Texas City Chemical
  • Calumet Specialty Lubricants, Dickinson Plant
  • Chevron Products Company, El Segundo Refinery
  • ExxonMobil Chemical Company, Baton Rouge Plastics Plant
  • ExxonMobil Chemical Company, Baytown Chemical Plant
  • ExxonMobil Chemical Company, Beaumont Polyethylene Plant
  • ExxonMobil Chemical Company, Edison Synthetics Plant
  • LyondellBasell Industries-Equistar Chemicals, Lake Charles Polymers
  • LyondellBasell Industries-Equistar Chemicals, Victoria Site
  • Shell Oil Products US, Shell Martinez Refinery