Tesoro Marine Pipeline In-Line Inspection

Originally thought to be impossible in inspect, Coffman provided pipeline modifications for Tesoro’s 2.8 mile marine pipelines to allow for in-line inspection and also provided on-site management, team coordination, and support during the final inspection. These critical lines transport fuel products from the offshore mooring buoy to the refinery and an inspection schedule ensures the lines will be safe for years to come.

Members of the Coffman team have designed and inspected process and fuel piping, pipelines, and tanks for projects all around the world.  Our pipeline engineers possess certifications for API 570 and API 653 and are certified with the American Welding Society (AWS) and National Association of Corrosion Engineers (NACE).  Owners and operators have come to rely on Coffman’s energetic and innovative team to supplement their own in-house capabilities.


  • Oil, Gas, Refinery, & Petrochemical


  • Pipeline Integrity Management