Tex is a large oil rig that was rude to Theodore and George. He refused to have his anchor cables checked before a storm, which nearly made him crash into Benjamin Bridge. He was saved by Theodore and George, after which he learned humility and told them stories of the ocean.
He is the first oil rig to appear in the series, although he only appears in the first season episode Theodore and the Oil Rig. He was later replaced by Owan. He was later mentioned in the Season 1 episode Theodore the Vegetable and had his name written in the Great Tugboat Book in Theodore in the Middle.