He served as an energy adviser to U.S. President George W. Bush and was a member of the National Petroleum Council and the Council on Foreign Relations .
Simmons was motivated by the 1973 energy crisis to create an investment banking firm catering to oil companies .
Simmons served as an energy adviser to U.S. President George W. Bush and was a member of the National Petroleum Council and the Council on Foreign Relations .
Simmons was motivated by the 1973 energy crisis to create an investment banking firm catering to oil companies .