Kenneth S. Deffeyes
Kenneth S . Deffeyes was a geologist who worked with M . King Hubbert , the creator of the Hubbert peak theory , at the Shell Oil Company research laboratory in Houston , Texas . 
<triplet> Kenneth S. Deffeyes <subj> geologist <obj> occupation <triplet> M. King Hubbert <subj> Hubbert peak theory <obj> notable work <triplet> Hubbert peak theory <subj> M. King Hubbert <obj> named after