The Minerals Management Service (MMS) has given Shell Offshore Inc. the go-ahead to drill exploratory wells next year on two leases in the Beaufort Sea, off AlaskaÔÇÖs north coast. The company wants to drill two exploration wells in the western area of Camden Bay between July and October next year. The two leases, which were obtained by Shell in 2005 and 2007, lie around 16 and 23 miles north of Point Thompson, Alaska. The Beaufort Sea contains an estimated 8.22 billion barrels of oil and 27.65 million cubic feet of natural gas.