We’re a growing company with a proud tradition of excellence.

What began in 1952 with one man’s vision and a tankerman’s license has grown to include 3,300 employees working at more than 100 sites throughout the U.S. and Canada.



Petroleum Service Corporation was founded in 1952 by Derryl H. Haymon in Baton Rouge, Louisiana. The company was the first to provide Coast Guard–licensed personnel to load and unload tank barges on the Mississippi River and other inland waterways. These men were known as “tankermen,” and PSC was the country’s first “tankerman service.” PSC remains the oldest and largest tankerman service in the U.S.

In the 1960s, PSC began providing other product handling services to major oil refineries, chemical plants, and storage terminals. Growth and expansion in the refining and chemical industries in North America over the past decade created new opportunities for PSC to expand its geographical footprint beyond the Gulf Coast. Today the company has more than 3,300 employees working at more than 100 sites throughout the U.S. and Canada, handling a wide variety of refined products, chemicals, fertilizers, and plastics.

In 2004, PSC was acquired by the SGS Group, the world’s leading inspection, verification, testing and certification company. PSC has retained its management team and prior owners, and today operates as a division of SGS North America, Inc.

tankerman-certificatePSC traces its history back to 1952, when D.H. Haymon (shown here on his tankerman license) conceived a plan to start the nation’s first shore-based tankerman service.