At about 19:00 Pacific time, a Cessna 152 lost engine power during cruise flight. In the ensuing forced landing, the airplane struck a utility pole. The pilot suffered a minor injury. The pilot said he had departed North Las Vegas about 3 hours, 30 minutes earlier with full tanks. The pilot said the left fuel gauge read empty and the right gauge read one-quarter when the engine quit. The left tank was found dry and approximately 1.3 gallons of fuel were found in the right fuel tank.