- Air Force Pipeline Company
- Air Products & Chemicals
- APAC
- Apex Oil
- Archer Daniels Midland
- Associated Asphalt
- BP North America
- BP Amoco Pipeline
- Buckeye Partners
- Centerpoint Terminals
- Chevron Products USA
- Conoco Phillips
- Delta Terminals
- Diamond Shamrock (Valero)
- ExxonMobil
- Five Star Fuels
- Gateway Terminal
- Gulf Atlantic Operations
- Gulf Coast Asphalt Company
- Hess Corporation
- ITAPCO
- Independent Terminal Services
- Intercontinental Fuels
- KBR
- Kinder Morgan
- Kinder Morgan CO2
- Lynnport Terminals
- Magellan Midstream Partners
- Motiva Enterprises
- National Oil Company of Trinidad (PETROTRIN)
- Noble Oil
- Omega Partners
- Perimeter Oil Company
- Petrocity Enterprises
- Petroleum Fuel & Terminal
- Plains All America
- Scott Petroleum
- Shell Oil Company
- Sunoco Logistics
- TEPPCO
- The Ethanol Corporation
- Transmontaigne
- Valero Refining
- Varreaux Midstream
- Velocity Midstream
- Vopak
- Wyoming Refining Company