The Petroleum and Natural Gas Senior Staff Association of Nigeria (PENGASSAN) has union ordered seven of its branches to cut off crude oil and gas supplies to the $20bn Dangote Petroleum Refinery.
The seven branches are: TotalEnergies, Chevron, Seplat, Renaissance, Shell Nigeria Gas, Oando, and Nigerian Gas Infrastructure Company.
The directive is contained in a letter dated September 26 and signed by its General Secretary, Lumumba Okugbawa, asking the branch chairmen to ensure strict compliance and give regular updates.
The union accused the management of the Dangote refinery of sacking its members for exercising their constitutional right to join the union.
Dateline Nigeria reports that the union had threatened to picket the refinery if the situation was not addressed.
But in a statement on Friday, the Dangote refinery said only a small number of workers were affected by what it described as a reorganisation aimed at preventing acts of sabotage within the facility.
It said over 3,000 Nigerians remain in employment, rejecting claims of mass layoffs
