The Nigerian oil and gas sector is bracing for severe disruptions after the Petroleum and Natural Gas Senior Staff Association of Nigeria (PENGASSAN) announced a nationwide strike in response to the alleged dismissal of over 800 Nigerian workers by Dangote Refinery. The circular read in part:“All PENGASSAN members working across field locations are to withdraw services effective 06:00hrs on Sunday, 28 September 2025 and commence 24-hour prayers. “All PENGASSAN members across all offices, companies, institutions, and agencies should withdraw all services effective 00:01 on Monday, 29th of September, 2025. No man is bigger than our country.”The development follows an earlier clash between Dangote Refinery and the Nigeria Union of Petroleum and Natural Gas Workers (NUPENG) over labour rights and safety standards. Dangote Refinery, in a September 24 letter, claimed the dismissal was tied to alleged sabotage threatening the safety of its 650,000-barrel-per-day facility, but PENGASSAN insisted no such sabotage occurred.