Magellan Petroleum Corporation (MPC) is engaged in the sale of oil and gas, as well as in the exploration for, and development of, oil and gas reserves. As of June 30, 2003, MPC's principal asset was a 55% equity interest in its subsidiary, Magellan Petroleum Australia Limited (MPAL). MPAL's major assets are two petroleum production leases covering the Mereenie oil and gas field (35% working interest) and one petroleum production lease covering the Palm Valley gas field (52% working interest). Both fields are located in the Amadeus Basin in the Northern Territory of Australia. Santos Ltd. owns a 48% interest in the Palm Valley field, a 65% interest in the Mereenie field and 18.2% of MPAL's outstanding stock. Origin Energy Limited owned 14.5% of MPAL's outstanding stock as of September 2, 2003. MPC also has a direct 2.67% carried interest in the Kotaneelee gas field in the Yukon Territory of Canada.