Oil prices registered their best quarterly performance in 30 years during the three months through to the end of June, staging a dramatic comeback after falling to record lows in April.
Brent crude futures skyrocketed more than 80% in …
In this update to our 2016 rankings, the top two slots in the list still belong to the Russian giants, Exxon is still third, and PetroChina held onto fourth place – but Shell and BP flipped positions, changing the makeup
