Nigerian National Petroleum Corporation, NNPC,...[has] denied claims that it failed to remit $20 billion crude oil revenue to the Federation Account...Nigerian Petroleum Development Corporation, NPDC, a subsidiary of the NNPC, disclosed that the allegation...is false...Mr. Iyowuna Briggs, Managing Director, NPDC,... maintained that the...majority of the funds that should have accrued to the federal government...was paid to its technical partners who provided the financing for its operations...Dr. Abiye Membere, Group Executive Director, Exploration and Production, NNPC, said...NNPC works with the Petroleum...Regulatory Agency...and other...government...[agencies] which scrutinize “all our documents.”