Nigerian militant group Niger Delta Avengers said on July 6 that it had blown up Chevron Corp.'s (NYSE: CVX) remote manifold platforms (RMPs) 22, 23 and 24.

The group said it attacked the manifolds just around 11 p.m. A RMP is where small oil or gas pipelines converge before connecting to a larger storage hub.

On July 5, the group said it blew up a well and oil pipelines near the city of Warri in Nigeria's southern oil hub.