In recent years oil has been imported from Kuwait and also from Bahrain. Seychelles imports three times more oil than is needed for internal uses because it re-exports the surplus oil in the form of bunker for ships and aircraft calling at Mahé. There are no refining capacities on the islands. Oil and gas imports, distribution and re-export are the responsibility of Seychelles Petroleum (Sepec), while oil exploration is the responsibility of the Seychelles National Oil Company (SNOC).