London-Nigeria's direct sales of crude oil and direct purchases of refined products,or DSDP,model is likely to be adapted in the next few years,depending on the evolution of the country's downstream sector,the head of state-owned Nigerian National Petroleum Corp.said Oct.6.Under the DSDP model,selected overseas refiners,trading companies and indigenous companies are allocated crude supplies in exchange for delivery of an equal value of gasoline and other refined products to NNPC.
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