Damaged facilities of an oil refinery in Sudan's main petroleum center of Heglig, bordering South Sudan on April 24, 2012. - 

Both South Sudan and Sudan rely heavily on oil, which is pumped from the South through Sudan's pipelines for export. The South, which seceded from the rest of Sudan in 2011, will now begin oil production again under a deal negotiated in Ethiopia.

The BBC's Sudan Correspondent James Copnall joins Marketplace Morning Report host Jeremy Hobson to discuss the details behind the new oil agreement.