Affiliated Companies

In 2000, we purchased the assets of Voss Petroleum, a full service oil and fuel distributor. We relocated, built a new bulk facility, re-named the company Petroleum Services Company and merged their offices with ours.

In 2003 we purchased Shamrock Contruction Company, an asphalt paving company. They specialize in sub-division roads, chip seal streets (sealcoating), trails, driveways, and parking lots.

December 2005 marked the grand opening of Center Point Travel Plaza located on I-380, Exit 35, Center Point, Iowa, operating as the retail division under Petroleum Services Company.

In 2006, we started an information technology company named Rock Technology. Rock Technology specializes in sales and service of computers for commercial and residential uses, website development and software consulting. “Rock Solid Performance from the Technology Experts.”

On September 1st, 2007 we purchased the assets of Kalona Oil Company acquiring the bulk plant in Kalona & two convenience stores (Westside Petro in Kalona & The Corner Stop in Washington). These locations operate as part of the Petroleum Services Company.

On July 1st, 2014 we closed on the purchase of the Hawkeye Convenience Stores from Hawkeye Oil Company. This acquisition brought 10 additional convenience stores to Petroleum Services Company’s retail division. Stores are located in Cedar Rapids, Marion, Hiawatha, Davenport and Iowa City.