Workers at Seplat Energy, Nigeria’s independent oil and gas firm, have launched an indefinite strike.

Jerry Amah, the general secretary of the Petroleum and Natural Gas Senior Staff Association of Nigeria (PENGASSAN), informed TheCable that the association’s Seplat workers’ branch went on strike on Friday.

Reuters reported on Friday that PENGASSAN members took action due to a breakdown in discussions over a 2026 collective bargaining agreement and worker welfare problems.

According to Reuters, the organization stated that the action will continue “until further notice.”

PENGASSAN will cease most operations, including production reporting and exports, while retaining only critical safety and power functions.

The strike warning applies to both onshore and offshore assets, joint venture activities, and offices countrywide, starting Friday.

According to Reuters, a second union that is not on strike represents other less trained workers.

According to the article, the measure may restrict output as global oil prices put more pressure on the government to optimise supplies.

Seplat Energy did not immediately reply to a request for comment.

In 2025, PENGASSAN and Dangote refinery were involved in a labour dispute, resulting in a strike that briefly crippled the downstream industry.

The strike was stopped on October 1, 2025.

What This Means: The strike threatens to disrupt Seplat Energy’s output and exports, potentially impacting Nigeria’s oil revenue and investor confidence. If it continues, it could exacerbate fuel supply pressures and signal deeper labour tensions in the country’s critical energy sector, echoing past disputes that briefly crippled operations.