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Representative Clients

OnQuest has performed multi-million dollar turnkey projects for furnace design and construction supervision, along with fixed-price engineering work and various projects involving combinations of engineering, procurement, and field construction. Our project scope can include engineering, design, equipment supply, and/or field construction as necessary.

OnQuest's clients include major oil companies such as BP, Chevron, ConocoPhillips, MarathonAshland, Shell, Sunoco, Tesoro, and Valero, as well as specialized refiners, petrochemical and specialty chemical manufacturers, and engineering and construction firms.

Following is a representative list of notable clients for whom we have performed work:

Client Facility Location(s)
AMPCO Equatorial Guinea
BP California
Caltex Australia
Calumet Lubricants Louisiana
Chevron California; Hawaii; Mississippi; Utah
Clean Energy Fuels California
Commonwealth Texas
ConocoPhillips Alaska; California; Pennsylvania
CBI/Howe-Baker Texas
Fluor California; Louisiana; Michigan; Washington
Flying J California
GRS Tampico, Mexico
Innovene Alberta, Canada
Jacobs Group California; Pennsylvania; Texas
Marathon-Ashland Illinois; Louisiana; Michigan; Minnesota; Ohio
Midway Sunset Cogeneration California
Nova Chemicals Texas (3 projects)
Paramount Petroleum California
PCS Nitrogen Port Lisas, Trinidad; Georgia; Ohio
Shell Oil Co. California
Shell Chemical Alabama
Stockdale Investments California
Sunoco Pennsylvania
Tesoro Alaska; California; Hawaii; North Dakota; Utah; Washington
Texaco California
Total Texas
Ultramar Quebec, Canada
Valero Refining Aruba, Lesser Antilles; California; Louisiana; New Jersey; Texas
Washington Group Colorado
Worley Parsons Alaska ; California; Texas

Letters of recommendation available on request.