Edward Laurence Doheny (August 10, 1856 - September 8, 1935) was a Californian oil tycoon who, in 1892, drilled the first successful oil well in the Los Angeles City Oil Field. His success set off a petroleum boom in Southern California, and made him a fortune when, in 1902, he sold his properties.He began highly profitable oil operations in Tampico, Mexico, drilling the first well in the nation in 1901.