It is estimated that South Sudan has around 4 times the oil deposits of Sudan. The oil revenues, according to the Comprehensive Peace Agreement (CPA), were split equally for the duration of the agreement period. Since South Sudan relies on pipelines, refineries, and Port Sudan's facilities in Red Sea state in Sudan, the agreement stated that the government of Sudan in Khartoum would receive a 50% share of all oil revenues. This arrangement was maintained during the second period of autonomy from 2005 to 2011.