The company also has expanded its aviation division, which provides airplane and helicopter maintenance and also drops supplies into hard-to-reach military bases.
But while Saudi Arabia's decision to call time on supporting the oil price marks an important milestone in the industry, oil's self-stabilising price mechanism remains very much intact - prices fall, production drops, supply falls, prices rise.
US military cargo planes have dropped supplies, though not enough to prevent deaths from starvation.
Chartered planes swooped in and out, some dropping supplies to the town.
But for the first several days helicopters merely flew overhead, sometimes dropping supplies in the vicinity.
American State Department officials spoke Thursday of air-dropping supplies, but said they would not do so without the junta's permission.
The crew wave to the plane dropping supplies to the island, where they wait to be rescued.
The government has sent Blackhawk helicopters and other military aircraft to assist in the evacuation and relief effort, dropping supplies to trapped towns, officials said.
In recent weeks, American transport planes have dropped supplies of ammunition, food, water, blankets, and even food for the horses that many Northern Alliance soldiers ride.
A British plane left an RAF base to drop supplies; earlier Tony Abbott, the prime minister of Australia, said his country was preparing to join the aid flights.
