The oil spill in the Gulf of Mexico has many Minnesotans thinking more about the gasoline they use and where it comes from. But very little of the state’s oil comes from the gulf.

Instead, Minnesota receives most of its oil from Canada, where oil sands production also carries environmental risks.

Much of the state’s gasoline is produced at the Flint Hills refinery in Rosemount, south of St. Paul. With seven crude oil tanks and about two million barrels of capacity, the maze of towers, tanks, pipes and pumps is the biggest refinery in the Midwest outside of Chicago.

Read this story at Minnesota.PublicRadio.org