The airplane collided with a fuel truck at about 1845 Pacific time while taxiing. Although the two flight crewmembers, three passengers and single flight attendant were not injured, the fuel truck driver sustained minor injuries. The airplanes left wing was structurally damaged. Visual conditions prevailed. While taxiing for takeoff, the pilot overshot a taxiway. Tower personnel then cleared him to perform a 180-degree turn, at the pilots discretion, to rejoin the taxiway. The pilot recalled seeing the moving fuel truck, and then the empty left tip tank penetrated the trucks cab. The fuel truck driver had enough time to duck before the left wing penetrated the cab and pinned him to the seat.