Col. Prouty spent 9 of his 23 year military career in the Pentagon (1955-1964): 2 years with the Secretary of Defense, 2 years with the Joint Chiefs of Staff, and 5 years with Headquarters, U.S. Air Force. In 1955 he was appointed the first "Focal Point" officer between the CIA and the Air Force for Clandestine Operations per National Security Council Directive 5412. He was Briefing Officer for the Secretary of Defense (1960-1961), and for the Chairman of the Joint Chiefs of Staff.
You can start by searching the words "abiotic oil." This will lead you to an enormous amount of literature and other materials on the subject.
To cut to the chase, you can do a search for the two books written by Jerome Corsi ("Black Gold Stranglehold" and "The Great Oil Conspiracy"), and the book by Thomas Gold "The Deep Hot Biosphere."