J Koski Company

J Koski Company

1502 London Rd Suite 220
Duluth, MN 55812
Phone: 218-249-1820
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Established: 2005
Acquired: 2011

J. Koski Co. (JKC) is a specialty contractor that offers an array of services to the pipeline, energy transmission, and oilfield construction industries. Since 2005, we have safely and successfully completed projects including right of way (ROW) clearing, mat hauling / ROW placement, storage yard construction, ROW restorations, and material transportation. We have expanded our North Dakota operations in the Bakken Oil Formation with a fully-staffed field office and a newly constructed maintenance shop. We continue to provide supplies and construction services for oilfield development.

JKC has a team of experienced, safe, and professional staff with the ability to tackle any sized project. We take great pride in accomplishing large-scale projects with the safest group in the industry. With the right people and equipment ready to mobilize, JKC is poised to respond quickly to any of our customers’ needs. The services we offer include the following:


  • Planning and Construction of Storage Facilities
  • Environmental Compliance
  • Materials Staging and Management
  • Oil Well Pad and Road Construction
  • Aggregate Sales and Trucking


  • Full Roustabout Crew
  • Rental Equipment
  • Fueling
  • Ground Thawing Services


  • ROW Restoration
  • Clean-up and Restoration
  • Environmental Maintenance


  • Clearing & Grubbing
  • Mulching, Chipping, Grinding and Stump Removal
  • Timber Mat Transportation, Staging, Cleaning, etc.
  • Fencing Removal and New Installations
  • Temporary Crossings, Bridges and Access Roads
  • Maintenance of Existing ROWs


  • Timber Mat Sales, Rental, Hauling and Placement
  • Rail Car Loading/Off-Loading
  • Heavy Equipment Hauling
  • Logistics Management
  • Snow Plowing & Removal
  • Hot-Shotting


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