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St. Paul Park Refinery

St. Paul Park Refinery, Mutiple Cranes on Site during Construction and Equipment Installation, with Boldt Employee and Truck in Foreground

Originally built in 1939, the St. Paul Park Refinery has a crude oil refining capacity of 104,000 barrels per day. Boldt has partnered with the refinery for more than 30 years on a wide range of projects, from maintenance work to major capital projects. Work has included scaffolding, sewer work, concrete foundations, grouting, fireproofing, structural steel, boilermaker work on heaters and heat exchangers, underground sewer repairs, road grading and excavating. In addition, Boldt has provided the refinery with 24/7 emergency services.

Specific projects completed at the facility include relocating much of the facility’s underground piping, pipeline repairs, storage and process tank replacements, de-salter unit rebuilds, crude heater repairs, tank and equipment foundations, control room updates, state-of-the-art high-volume water treatment facility, a dissolved gas flotation system; a sulfur recovery system, and scheduled, unscheduled and emergency shutdowns.


Marathon Petroleum

St. Paul, Minnesota


Boldt Role
  • General Contractor
  • Construction Manager
Project Type
New Construction / Renovations / Equipment Installation

Conventional Electric Power Plants

Project Highlights

  • Boldt has had an on-site presence for years providing day-to-day maintenance support and major capital construction services, along with 24/7 emergency services.
  • More than $160M in construction and maintenance projects have been completed at the refinery to date.