ABUJA: Nigeria’s government was on Monday (Tuesday in Manila) seeking to reach an agreement with union leaders to prevent a national strike over petrol price rises, as economic pressures mount and concerns grow over falling oil production. Labor ministry officials were to meet with representatives of the Nigeria Labor Congress (NLC) and the Trade Union Congress (TUC) to discuss the 67 percent hike imposed last week. Both unions have called for an indefinite strike from Wednesday (Thursday in Manila) unless prices are slashed from 145 Naira ($0.73, 0.64 euros) to 86.50 Naira per liter. Government offices, airports, sea ports and businesses, including banks, shops and markets, would be shut if talks failed, the unions warned, calling on people to stockpile food. Any industrial action would exacerbate pressures in Africa’s largest economy caused by the global slump in crude prices, which has drastically cut government revenue from oil exports.