Duffy's Shell Station is a family owned service station run by Troy when he is not gator hunting. The station is named after Troy's father Duffy. It is located right at home in Pierre Part, Louisiana on Highway 70.

During the long alligator offseason, it's likely that Troy will be behind the counter selling the store's wide variety of goods. Duffy's, being in a small town, offers more than the average gas station, including bait and fishing supplies. It even buys crawfish from those who prefer hunting smaller game than gators.

In Swamp People, Duffy's is occasionally seen at the end of an episode. It is where locals and the Landrys meet to see the day's catch, and is where large gators are showcased.