As the acft was climbing thru 9,000 ft for 13,000 ft with skydivers aboard, the eng lost power from fuel exhaustion. The skydivers bailed out over the drop zone, then the plt attempted to return to the arpt from about 7000 ft. An emergency landing was made before reaching the rwy. The plt saw a fence ahead & applied heavy braking to avoid hitting the fence. However, the acft encountered a ditch as the plt was applying brakes & the acft nosed over.