Michel Thomas Halbouty (21 June 1909 in Beaumont, Texas – 6 November 2004 in Houston, Texas) was an American geologist, petroleum engineer, and wildcatter. Credited with discovering more than 50 oil and gas fields, he twice declared bankruptcy, but came back each time to regain wealth. He authored hundreds of technical articles on petroleum geology, and two book-length histories of famous oil fields. Halbouty is often described, including in his New York Times obituary, as “legendary.”
Halbouty's father, a Lebanese immigrant, ran a grocery store. Michel Halbouty got his first job in the oil business as a boy, bringing ice water to the drillers at the Spindletop oil field south of Beaumont.
He enrolled at Texas A&M University at age 16. Although he was short of funds, the president of the university personally gave him a $50 loan to cover tuition. He was graduated in 1930 with a double degree in Geology and Petroleum Engineering. The following year he gained a master's degree from Texas A&M, again in both Geology and Petroleum Engineering. He always wore his A&M ring on his left-hand ring finger, and was instrumental in persuading George H. W. Bush to locate his presidential library on the A&M campus.
He discovered his first oil field in 1931, only six weeks out of college, when as a wellsite geologist for the Yount-Lee Oil Co. he drove from the wellsite and interrupted a formal dinner party at the owner's home to persuade the owner not to abandon an apparent dry hole, but to drill deeper. Halbouty staked his job on the result, and drilled into the prolific High Island Field in Texas.
Halbouty served in the US Army during World War II, as an infantry officer, instructor in military science and tactics, and as Chief of the Petroleum Production Section of the Army-Navy Petroleum Board. He attained the rank of Lieutenant-Colonel by the end of the war.