ROCKLAND, Maine (AP) _ Matthew Simmons, an investment banker who began his career serving the oil industry and later became an advocate for offshore wind energy, has died in Maine. He was 67.
Simmons founded Texas-based Simmons & Company International, which grew into one of the largest investment banking companies serving the energy industry.
He retired last month to devote his energies to The Ocean Energy Institute, a think tank and venture capital fund he founded in Rockland, Maine. The Ocean Energy Institute said he died of an apparent heart attack Sunday.
Simmons wrote the book, “Twilight in the Desert: The Coming Saudi Oil Shock and the World Economy,” which laid out his theory that the world was approaching peak oil production.
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