I was driving on the freeway and I heard something explode followed by a clanking noise. The oil light and battery light came on simultaneously and I could not accelerate. I immediately pulled over and noticed that all the oil drained out of the car. When I got a chance look under the vehicle there was a hole in the oil pan. A mechanic said that it had happened from the inside. Possibly something from the motor broke off and shot out of my oil pan.