Royal Dutch Shell latest to come under attack in Nigeria from a militant group calling itself the Niger Delta Avengers. File Photo by Stephen Shaver/UPI ABUJA, Nigeria, May 9 (UPI) — Nigerian media reported Monday a group calling itself the Niger Delta Avengers forced the evacuation of facilities in the area operated by Royal Dutch Shell. Nigerian newspaper Vanguard reported subsidiary Shell Petroleum Development Corp. evacuated around 100 staff from an oil facility that was producing around 90,000 barrels of oil per day. The newspaper reported that a skeleton crew was left behind, though operations at the Shell facility were suspended. Vanguard reported the militant group calling itself the Niger Delta Avengers forced the Shell evacuation. The group last week took credit for knocking pipelines controlled by the Nigerian National Petroleum Corp. and Chevron offline. The group said the attacks came after issuing an ultimatum to the Nigerian government […]