The discovery of this commodity in southern sudan sparked the independence movement that eventually led to the division of the country:

The discovery of oil in South Sudan sparked the independence movement that eventually led to the division of country.

The Oil was discovered in Bentu and Heglig districts of South Sudan in 1978. The central government in Khartoum took over the oil districts of South Sudan which sparked rebellion in South Sudan and on the other hand South Sudan wanted to have a greater share in oil revenue. It resulted into conflict in Sudan for a long time and ultimately on 11 July 2011 South Sudan attained her Independence and thus lead to division of Sudan.

b) race riots in several cities