A spokesman for the Ministry of Aviation said negotiations are happening at a high level; union leaders met yesterday with the Labour, Petroleum and Power ministries at the presidential villa, but reached no consensus.
Nigeria's government removed pump-price controls on petrol earlier this month, and roughly doubled power tariffs in an aim to shore up a budget battered by a fall in oil prices and an economic contraction brought on by the COVID-19 pandemic.
Petrol subsidies drained billions from government coffers, while experts said artificially low tariffs were holding back much-needed investment in the nation's dilapidated power sector.
International lenders such as the World Bank have pressed Nigeria to make the reforms to qualify for budget support loans.
But the unions said the increases were poorly timed due to the economic hardship created by the pandemic, with high inflation and a recession looming after the economy contracted in the second quarter.
Union leaders previously said a reversal of the price hikes would avert the strike.