I SHIFTED MY CAR FROM DRIVE TO PARK AND EXITED THE VEHICLE PARKED IN A GAS STATION PARKED LOT. AS I EXITED THE DRIVERS SEAT AND BEGUN TO STEP AWAY I NOTICED THE JEEP WAS IN MOTION (ROLLING BACKWARDS, TOWARDS ME JUST STEPS AWAY FROM THE VEHICLE).BECAUSE THE DRIVER SIDE DOOR WAS OPEN IT KNOCKED ME DOWN ON MY FACE AND THEN ROLLED OVER MY LEGS WITH THE FRONT DRIVERS SIDE WHEEL. THE JEEP CONTINUED TO ROLL UNTIL IT CRASHED INTO A FUEL TRUCK PARKED IN THE GAS STATION LOT WHERE I HAD PARKED.