Abstract
Alaska's basement is rich in oil gas, coal, gold zinc and others ores. But above all, the state guarantees 17 % of the American production of petroleum: 90 % of the Alaska's budget comes from hydrocarbon. The north of the state, also called North Slope constitutes an important stock of petroleum, particularly harnessed (exploited) by companies like British Petroleum, Exxon, or Arco. It is called as the National Petroleum Reserve. Oil is also exploited in off-shore (in the sea) despite difficult climatic conditions. Prudhoe Bay area affords half of the Petroleum in Alaska: 400 000 barrels a day, which represents 8% of the American production.
