Founded in 1939, United Oil is a marketer of a variety of petroleum fuel and lubricants. The company provides lube and home heating oil and antifreeze chemicals to its customers. It supplies food-grade and dust suppression oil in various quantities. United Oil offers hydraulic fluids for the lubrication of antifriction bearings and circulating pumps. The company provides white mineral oil for the agricultural, food processing and pharmaceutical industries. It additionally offers online credit application forms. United Oil supplies products from several companies, including Chevron Products Company, Sinclair Oil Corporation and Power Service Products. The company maintains a presence in Caldwell, Idaho.