Libya’s National Oil Corporation (NOC) says that the militias supposedly protecting the country’s oil infrastructure, the so-called ‘Petroleum Facilities Guard’ (PFG) are the key “source of insecurity affecting [Libyan] oil supplies.”

Their effect is “20 times worse” than the Islamic State (IS)-affiliated groups, a senior NOC figure says. He backs this up with detailed NOC statistics showing that 95% of Libya’s 1.08mn b/d of...