Billionaire oilman Harold Hamm has made a name for himself in the Bakken. As CEO of Continental Resources, his company is the biggest oil producer in western North Dakota. But he’s not the only Hamm in town. A man named Phil Hamm lived in Williston before the boom came to town. He stills lives there today. In this interview I produced for Prairie Public and Marketplace , it’s clear he’s got something to say about the changes the boom has brought.