Union Affiliation

All of Loy Clark Pipeline's field staff are members of a local labor union.  Currently Loy Clark is signatory to the following labor unions:

  • International Brotherhood of Electrical Workers
  • International Union of Operating Engineers
  • United Association of Journeyman and Apprentices of the Plumbing and Pipe Fitting Industry of the United States
  • Laborer’s International Union of North America
  • International Brotherhood of Teamsters

The union local utilized will depend upon the geographical location the work is taking place.  Please reference the “Territory” page to read where Loy Clark Pipeline is currently licensed and performs projects.


©2013 MDU Resources Group, Inc. | 19020A SW Cipole Road | Tualatin, OR 97062 | (503) 644-2137 | Legal Statement | Disclosure Notice