evidence: Al Jazeera’s Harriet Martin, reporting from Khartoum, said that under international law, Heglig belongs to Sudan, not South Sudan. [...] "The occupation of Heglig is taking [the Sudan-South Sudan] battle to a different level," our correspondent said. "What you have now is the possibility of it severely affecting the supply of oil to Sudan." [...] A 2009 ruling by the Permanent Court of Arbitration in the Hague placed Heglig in Sudan’s Southern Kordofan region. But South Sudan has disputed the ruling, asserting that the region is in South Sudan’s Unity State.