The Fuel Depot is where all of Sodor's Diesel fuel is refined. Thomas was once sent here to collect new fuel for the Diesels after a new batch from the Mainland had made them ill. The depot was first seen in the fifth series episode, Put Upon Percy, and continued to reappear between the eighth and eleventh series.
- Take-n-Play (discontinued)
- The fuel depot building seen in the eighth series was later repurposed as The Balloon Factory.