Refinery advantage: the US shale revolution boosted crude production to a record 10.5 million barrels per day,
upending the global oil market by adding millions of barrels of very light crude to the supply mix.
The United States will overtake Russia as the world's biggest
oil producer by 2019 at the latest, the International Energy Agency (IEA) said on Tuesday, as the country's shale
oil boom continues to
upend global markets.