Alon
Amaizing Energy
Big West/Flying J *
BP *
BP-TNK *
Coastal UniLube *
Coffeyville Resources *
ConocoPhillips *
Cooperative Refining
Consumers’ Co-operative Refineries Ltd *
El Paso Corp. *
ENAP *
Frontier *
Giant *
INA *
KNPC
Marathon Ashland *
Mazeikiu Nafta
MTBE Malaysia		 MOL
Nerefco
NIS
PDVSA *
Pennzoil
PetroPeru
Petrox, SA
PKN Orlen *
Reilly Industries
SandRidge Energy *
Sinclair Oil
Sunoco
UDS *
Valero *
Western Refining
Williams *
Wynnewood
Mead West Vaco *
Murphy Oil *

* Multiple projects