Lumumba Okugbawa said the action was being taken in response to a restructuring of the Nigerian National Petroleum Corporation (NNPC), announced by the minister of state for petroleum, that will see it divided into five divisions.
An NNPC spokesman could not immediately be reached to confirm the industrial action but a Reuters reporter said gates to the company's head office in the capital, Abuja, were closed as were seven NNPC fuel stations in the city.