Newark Foodmart Bad gas Newark Texas

 Bought premium fuel for my boat. Boat ran fine the week before and used a half of tank that was in it. Had about 1/2-3-4 of a gal left. Filled tank. Launched boat and it was running fine. After a couple of minutes, it started running bad missing and cutting out but ran. Once we stopped it died. Started up then died again. After that it would not start again. Had to be towed back to the dock around 7 miles away. After getting it home. Sprayed some starting fluid in carbs and it fired right up. Had same problem previously with gas from them but wasn't sure. Now I am 100% sure their premium gas is bad.