Leadership Newspapers | How Crude Oil Swaps, OPAs Stalled NNPC Refinery Operations THISDAY Live The Crude for Petroleum Products Exchange Agreements, better known as crude oil swaps, and Offshore Processing Agreements (OPAs), entered into by the Nigerian National Petroleum Corporation (NNPC) and oil traders between 2011 and 2014, are to ... Oil Glut: Crude Differential Hits 10-year Low |