About Us


ARG Transportation Services is a diversified transportation company providing rail and rail-related services.

ARG Transportation Services was founded by David Parkinson, former chairman of the ParkSierra Group of shortline railroads which included the Arizona & California, California Northern, and Puget Sound & Pacific railroads. He joined with John Dugan, formerly of the Burlington Northern Santa Fe Railway, to create the successor to ParkSierra Group.

The Arizona Railroad Group started in October, 2003 when it acquired the San Pedro & Southwestern Railroad (SPSR) from RailAmerica, Inc. The Arizona Railroad Group changed its name to ARG Transportation Services to emphasize its services beyond Arizona and expand its offerings to other rail-related services like transloading freight between modes of transportation and contract railcar switching for private industry.

In 2010 the company was sold to David’s son, Scott Parkinson, who continues to oversee its growth and diversification. The company is headquartered in Eugene, Oregon. ARG is focused on increasing rail and related transportation activities with other communities and businesses throughout the country.

In 2011 ARG was awarded the concession to operate the Coos Bay Rail Link for the Oregon International Port of Coos Bay. The railroad connects the Port with the Class I railroad network in Eugene, Oregon. ARG started rail service in October, 2011 as the Coos Bay Rail Link (CBR). With the addition of its second railroad ARG created the ARG Railroad Services division to oversee the operations of both current railroads and any subsequent additions and moved its headquarters to Eugene.

In 2016 ARG started a railcar and locomotive repair company, ARG Mechanical Services.  ARG Mechanical is headquartered in Gardiner, Oregon and provides inspection and repair services to Coos Bay Rail Link, industrial customers, and other shortline railroads in the region.