The Murrieta Oil Field is an industrial area in metropolitan Los Santos, bordering East Los Santos to the west, El Burro Heights in the north and the Palomino Highlands to the east. This area is supposedly rich in petroleum or crude oil deposits. The land contains various Brute pump jacks, which bob up and down to pump the crude oil from the ground.
If the player chooses option A, the mission takes place here. Franklin meets Trevor here and chases him throughout the city and eventually back here. Trevor tries to escape but Michael crashes his car into Trevor's making it rupture a tank. Franklin then shoots the oil making the oil turn to fire burning Trevor to death.
- One of the 50 spaceship parts can be found in this area.
- One of the 50 stunt jumps is performed near one of the factory buildings.
- The name "Murrieta" could be a reference to the city of Murrieta, California, named after Juan Murrieta, a Spanish land owner in California in the late 19th century.