Nigeria oil union threats shutdown amid strike LAGOS, Nigeria (AP) - A union representing 20,000 oil and gas workers in Nigeria says it will shut down all production starting Sunday to take part in the nationwide strike over spiraling fuel prices. The strike began Monday after the Nigerian government reversed a two-decade-long subsidy program that had kept gas prices low for Nigerian consumers. A statement Thursday by the Petroleum and Natural Gas Senior Staff Association of Nigeria said that if the government does not restore the subsidies, the union will be "forced to go ahead and apply the bitter option of ordering the systematic shutting down of oil and gas production." Nigeria is a top supplier of crude to the U.S., producing about 2.4 million barrels a day.