James D. “JD” McMullin, 72 of Sidney passed away on Friday. July 18, 2025, at the Sidney Health Center, Sidney, MT.

James D. “JD” McMullin was born on December 18, 1952, to Floyd G, “Buster” and Laura Belle (Fletcher) McMullin, in Soda Springs, Idaho. Before he was 3 years old, he moved with his parents to Montana. JD attending Sidney Public Schools and graduating from Sidney Senior High School in 1971. Following graduation JD attended M.S.U. and earned his degree in Geology.

He was an ambitious young man, working with his dad in the building business, then rough necking in the oils patch, and worked his way thru college. JD was a Geologist for Tiger Mike Oil Company.

In 1982, JD married Janna Gunter in Colorado.

JD started driving a Semi truck in 1983 and eventually acquired a fleet of his own.

He had a great passion for hunting and guns. He and his dad built a gun shop on the back of the house, and they operated it for several years.

Surviving him are his brother, Don McMullin, Sidney, MT and several cousins.

He was preceded in death by his parents, Floyd G, “Buster” and Laura Belle (Fletcher) McMullin.