Nigeria, April 4 -- Workers at Seplat Energy began an indefinite strike on Friday, a move that could disrupt production at a time of rising global oil prices and mounting pressure on Nigeria to boost supply.

The workers, under the aegis of the Petroleum and Natural Gas Senior Staff Association of Nigeria (PENGASSAN), embarked on the industrial action following a breakdown in negotiations over the 2026 collective bargaining agreement and broader welfare concerns.

The union communicated its grievances in two letters addressed to the company's Chief Executive Officer, Reuters reported on Friday.

The workers said the strike would continue "until further notice."

Seplat Energy had not issued an official response as of the time of filing th...