The company spent billions exploring and found large deposits under the Beaufort Sea, but did not have the money to develop them.

In the winter, an ice road was built across the frozen Beaufort Sea.

Hidden changes in the ice cover of the Beaufort Sea were discovered in 2009.

The shoreline of the Beaufort Sea is covered with tundra.

Her department also plans to lease nearly 10 million acres in the Beaufort Sea off the state's northern edge.

The Beaufort Sea slid out of sight to the north.

This also enabled the industry to drill in the deeper waters of the Beaufort Sea.

The last section of the ice road was on the frozen Beaufort Sea.

Such reserves are known to exist under the Beaufort Sea.

These explosions have been banned in the Beaufort Sea during the time of year that bowheads are present.