Like other Freeport residents, the Wentworths must drive eight miles north to Brunswick or five miles south to Yarmouth to shop in a supermarket.
Officials said one or more helicopters had been flying over Yarmouth for much of the evening.
Anglia will supply feedstock to a planned gas-fired electrical power generating plant at South Denes, Great Yarmouth, in the U.K. Ranger will own 28.3% of the plant and operate it when it starts production, scheduled for 1994.
The coast guard at Great Yarmouth said two U.S. Air Force helicopters and two local rescue boats searched by the light of flares after nightfall.