M. King Hubbert, American geophysicist and academic (died 1989)

Marion King Hubbert was an American geologist and geophysicist. He worked at the Shell research lab in Houston, Texas. He made several important contributions to geology, geophysics, and petroleum geology, most notably the Hubbert curve and Hubbert peak theory, with important political ramifications. He was often referred to as "M. King Hubbert" or "King Hubbert".