South Sudanese men look at shrapnel from a bomb that hit an oilfield in February
South Sudanese men look at shrapnel from a bomb that hit El Nar oil field in Unity State in February. Sudan's jets bombed oil and water wells inside South Sudan and its ground troops crossed into contested oil-rich border regions, South Sudan officials said. As the two try to break the deadlock over a furious oil dispute, China is forced into a difficult juggling of allegiances between the rivals.