The Nigerian National Petroleum Company Limited (NNPC Ltd) has dismissed the Managing Directors of its three key refineries as part of a major shake-up by the new management.

Those affected include the heads of the Port Harcourt Refining Company, Warri Refining and Petrochemical Company and the Kaduna Refining and Petrochemical Company.

In addition to the refinery chiefs, several senior officials of the national oil firm were relieved of their duties.

Among them is Bala Wunti, former Chief of the National Petroleum Investment Management Services (NAPIMS), a subsidiary of NNPC Ltd.

The company also directed staff members with less than a year to retirement to proceed on exit.

Although the company is yet to issue an official statement, multiple reliable sources within NNPC confirmed the development.