The oil companies from Asia dominate the oil in Sudan and South Sudan:

The oil companies from Asia dominate the oil in Sudan and South Sudan: An American study says

Khartoum-An American study has found that the oil companies from Asia dominate the oil in Sudan and South Sudan, where The China National Petroleum Corporation, India's Oil and Natural Gas Corporation, and Malaysia's Petronas hold large stakes in the leading consortia operating oil fields and pipelines while National oil companies Sudapet (Sudan) and Nilepet (South Sudan) hold small stakes in operations.
The study, prepared by the U.S. Energy Information Administration, pointed at the Chinese influence in the oil sector in South Sudan, saying Beijing is the leading destination for the export of crude oil from Sudan and South Sudan, in 2011, Sudan's oil exports accounted for about 5 percent of China's total imports of crude oil, but in 2012 this percentage decreased to less than 1% because production ceased in South Sudan.
Despite falling short of its production goal in 2012, Sudan still hopes to boost production in the future by ramping up new fields and increasing oil recovery rates at existing fields. Sudan recently launched bidding for blocks that are clearly located in Sudan and included some offshore acreage. In addition, Sudan signed an agreement with Norway in 2012 to increase oil recovery rates at current fields from 23 percent to 47 percent, according to the Middle East Economic Survey (MEES). According to MEES, this is likely a long-term strategy, and it would take time before clear increases are noticeable.
The study stated that South Sudan has discussed its options with the authorities in Kenya, Ethiopia and Djibouti for possible construction of pipelines to the port of Kenyan Lamu or Djibouti port across Ethiopia, noting that Juba had signed a memorandum of understanding with all three Governments to build the pipeline