Pan American Petroleum and Transport Company
The Pan American Petroleum and Transport Company (PAT) was an oil company founded in 1916 by the American oil tycoon Edward L. Doheny after he had made a huge oil strike in Mexico. Pan American profited from fuel demand during World War I, and from the subsequent growth in use of automobiles.
Source: Wikipedia — Pan American Petroleum and Transport Company (CC BY-SA 4.0)