Oildale, CA., Wednesday at approximately 5:42 A.M., The Kern County Fire Department and Bakersfield Fire Department responded to a residential structure fire in the 600 block of Woodrow Ave. When units arrived on scene, heavy smoke was seen coming from the back of the structure. Crews pulled an attack hose off of the engine, entered the structure and started fighting the fire. At approximately 6:20 A.M. the fire was knocked down. Crews remained on scene for approximately one hour to mop up and extinguish all last hot spots. There were no injuries to fire service personnel or civilians.