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Libyan Operations
6 Months Ended
Jun. 30, 2011
Libyan Operations [Abstract]  
Libyan Operations
2. Libyan Operations
     In response to civil unrest in Libya, a number of measures were taken by the international community, including the imposition of sanctions by the United States, the United Nations, the United Kingdom and the European Union. The sanctions blocked and froze the assets of, and any payments to, the Libyan government and any entities owned or controlled by the Libyan government, as well as designated entities and individuals. As a consequence of the civil unrest and the sanctions, the Corporation delivered force majeure notices to the Libyan government relating to the agreements covering its exploration and production interests in order to protect its rights while it is temporarily prevented from fulfilling its obligations and benefiting from the rights granted by those agreements. Because of the on-going events, including the sanctions, the Corporation is unable to determine when or if it will resume operations in Libya. Libyan production averaged 23,000 barrels of oil equivalent per day (boepd) for the full year of 2010 and 14,000 boepd for the first quarter of 2011. Production was suspended in the first quarter of 2011. The Corporation had proved reserves of 167 million barrels of oil equivalent in Libya at December 31, 2010. At June 30, 2011, the net book value of the Corporation’s exploration and production assets in Libya was approximately $400 million.