- 4J Energy, LLC
- Aeropres Corporation
- Alliance Energy Services LLC
- Altivia
- AmeriGas Propane LP
- AmSty LLC
- Arcanum Infrastructure LLC
- Archer Daniels Midland Co.
- Arclin
- Arkalon Ethanol, LLC
- Arkema Inc.
- Ascend Performance Materials
- Aux Sable Liquid Products
- Ballast Partners LLC
- Berryman Chemical Inc
- Bluewing Midstream
- bp
- Cargill Inc
- Celanese International Corp
- Cenovus Energy Inc.
- Centennial Energy LLC
- CF Industries
- ChampionX LLC
- Chemtrade Logistics Inc.
- Chevron Phillips Chemical Company LP
- Chief Ethanol Fuels, Inc.
- CHS INC
- CIE Norfolk GNS, LLC
- Citgo Petroleum
| - Cornerstone Chemical Co.
- Corteva Agriscience, LLC
- Crystal Clean, LLC
- Deer Park Refining LP
- Dover Chemical
- DuPont
- Dyno Nobel Inc
- Eastman Chemical Company
- Eco Services Operations Corp
- Elite Octane LLC
- ERCO Worldwide (USA) Inc
- Evonik Corp
- ExxonMobil
- Flashpoint Energy Partners, LLC
- Flint Hills Resources
- Formosa Plastics Corporation, U.S.A.
- Gantrade Corporation
- Helm U.S. Corporation
- Heron Lake BioEnergy LLC
- Hexion Inc
- HF Sinclair Corporation
- HJ Baker Sulphur LLC
- Howard Energy Partners
- Hunt Refining Co
- Huntsman International LLC
- Huron Energy, LLC
- IMTT
- Indorama Ventures
- Ineos Oligomers Usa LLC
| - INEOS Phenol
- Inter Pipeline Ltd
- Interacid North America
- Inter-Chem
- International Raw Materials LTD
- INVISTA
- Irving Oil Ltd.
- Itafos Conda LLC
- Kemira
- Kern Oil & Refining Co (dba Kern Energy)
- Keyera
- Kiros Energy Marketing ULC
- Koch Fertilizer LLC
- Koch Methanol
- LACC LLC
- LBC Houston LP
- Linde Inc
- LiquidPower Specialty Products Inc. (LSPI)
- Louis Dreyfus Company Grand Junction
- LyondellBasell
- MEGlobal Americas
- Messer LLC
- Metalúrgica de Cobre
- Methanex Corporation
- Midstream Energy Partners
- Midwest Terminals
- Mitsubishi Chemical Group
| - MMTX, INC
- Monument Chemical Houston LLC
- Nan Ya Plastics Corporation
- Nexpera LLC
- NGL Supply Co Ltd.
- Nippon Chemical Texas Inc
- Nouryon Chemicals LLC
- NOVA Chemicals Corporation
- Novus International Holdings, L.L.C.
- Nutrien
- Odfjell Terminals (Houston) Inc
- Olin Corporation
- Orica USA Inc
- OXEA Corporation
- OxyChem
- Par Pacific Holdings
- Patriot Rail
- PCI Nitrogen LLC
- Pencco, Inc.
- Pilot Travel Centers LLC
- Plains Marketing, LP
- RPMG LLC
- Sabic Innovative Plastics
- Sawtooth Caverns
- Shell Chemical LP
- Shintech Louisiana, LLC
- SI Group, Inc
- SNF Holding Company
- Solvay Chemicals
| - Southern Ionics Incorporated
- Southwest Iowa Renewable Energy, LLC
- Stepan Company
- Sterling Ethanol, LLC
- Suncor Energy (USA) Inc
- Syensqo USA LLC
- Synthomer Adhesive Technologies LLC
- TDC, L.L.C.
- Teleos Ag Solutions
- Tessenderlo Kerley Inc.
- Texon Midstream LLC
- The Chemours Company
- The Dow Chemical Company
- The Williams Companies, Inc.
- TotalEnergies Petrochemicals & Refining USA, Inc.
- TPC Group
- Twin Eagle Terminals & Logistics, LLC.
- U.S. Energy
- United Energy Trading LLC
- Valero Energy Corp
- Wanhua Chemical (America) Company LTD
- WE Soda Wyoming LP
- Western Plains Energy, LLC
- Wildcat Midstream Limited Partnership
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