Petro Marine Services is one of the largest, independent petroleum marketing and distribution companies in Alaska. The company serves the power generation, tourism, transportation, construction, mining, retail and timber industries. It provides lube oil, greases, cleaners, sorbent materials, antifreezes, additives, and automotive, heating and marine fuels. Petro Marine Services offers air, coolant, fuel and hydraulic filters. The company provides marine lubricants, transmission fluids, nozzles, meters and tank accessories. It conducts training seminars, lube surveys, sorbent pads and meters. Petro Marine Services offers batteries, protective coatings, containers and deck brushes. The company is a wholly owned subsidiary of Harbor Enterprises.