Oil Refinery is an oil refinery in West Springfield. It is a dangerous place to work where all of the employees are missing a hand, a limb or even a head.
After Homer thought Marge loved Artie Ziff instead of him, he and Lenny traveled by bus to West Springfield where they started working on oil refinery. Unfortunately, they mistakenly caused fire that encircled them. Meanwhile, Artie and Marge were looking for them, flying by Artie's helicopter. When they did, Homer refused to climb up a rope ladder as he thought Marge didn't love him anymore. Artie then convinced him that Marge loves only Homer. Lenny didn't want to climb up, too, but then he saw Carl in the helicopter and changed his mind.