The attack, which occurred late on Thursday, is the second by gunmen on Chevron-contracted vessels off the coast of President Goodluck Jonathan`s home state of Bayelsa this month.
A security source said the latest vessel, the MV C-Endeavour belonging to service company Chouest, was serving Chevron`s Agbami field, which produces 250,000 barrels per day 70 miles (113 km) off the Nigerian coast. Two other sources close to the incident confirmed the details.
A California-based spokesman for Chevron declined to comment beyond the official statement.
"Chevron Nigeria Limited is assisting the service company to ensure the safe release of the kidnapped crew members," the company said.
Experts say recent attacks on ships in the Gulf of Guinea threaten the region`s position as an emerging trade hub that is an increasingly important source of oil, metals and agricultural products such as cocoa for world markets.
Chevron has a history with troubles in Nigerian waters. It was only a year ago that a U.S. appeals court upheld a lower court ruling that Nigerian villagers who occupied a Chevron offshore platform in 1998 could not hold the oil company liable for their violent clash with security forces. (*)
Editor: Kunto Wibisono
Copyright © ANTARA 2011
