REUTERS
The letter alleges that the Nigerian National Petroleum Corporation (NNPC) - the state
In the letter, Sanusi warns the president of the "continued failure of the NNPC to repatriate significant proportions of the proceeds of crude oil shipments it made in gross violation of the law."
In a statement, the NNPC called the letter "misleading" and "borne out of misunderstanding of the workings of the oil and gas industry and the modality for remitting crude oil sales revenue into the Federal Account."