Quest TruTec has supplied its proprietary services to a large customer base around the world in the oil & gas, petrochemical, utility, and several other industries. Below is a small sampling of these clients.

AGIP-ENI Group Raffineria ARAMCO BP Chevron CHS CITGO ConocoPhillips Esso Imperial Oil Refinery ExxonMobil Flint Hills Resources Formosa Plastics Corp, USA                 INEOS Irving Oil Kuwait Petroleum Lyondell Citgo

Marathon Petroleum Methanex MIRO NCRA Nerefco Refinery PCK Raffinerie Petro Canada Saudi Aramco / Shell Refining (SASREF) Shell Shell Canada Shell Chemicals SK Corporation Suncor Syncrude Valero