Vacuum Oil Co. Ltd. was an American oil company founded in New York in 1866 by Matthew Ewing and Hiram Bond Everest. The company was a manufacturer of high grade lubricating oils and greases and was a pioneer in the field of scientific lubrication and the first manufacturer of petroleum residual lubricants.
Vacuum Oil Co. Ltd. established a presence in the UK in 1901. By 1911 the company was supplying British Railways with lubricating oils.
In 1931 Vacuum Oil Co. Ltd. merged with Standard Oil Co. (commonly known as Socony Oil) to form Socony-Vacuum Oil Co., making the business the third largest oil company in the world. In 1955 the company name was changed to Mobil Oil Co. Ltd. The business was merged with Exxon in 1999 to become ExxonMobil.