Southwestern Petroleum Corporation is a world leader in high performance lubrication. Since 1933 SWEPCO Brand Lubricants have been helping our Customers reduce the total cost of lubrication in demanding industries like transportation, mining, construction, manufacturing, marine, agriculture, performance automotive and municipal services.

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SWEPCO 306 Supreme Formula Engine Oil
SWEPCO 501 Premium Diesel Fuel Improver
SWEPCO 503 Premium Gasoline Improver
Texas Oil Company Seeking Distributors