South Kordofan ( ) is one of the 18 wilayat or provinces of Sudan. It has an area of 158,355 km² and an estimated population of approximately 1,100,000 people (2000). Kaduqli is the capital of the state. It is centered on the Nuba Hills. Because South Kordofan is the only state in (North) Sudan that is producing oil, the ethnic Nubans who live there are being targeted by the northern military.