U.S. shale oil production amounted to just 5 million barrels per day (bpd) at the end of 2014, less than 6 percent of world production and consumption. Despite the shale sector’s small market share, it has disrupted the entire oil industry because it emerged in the middle of the cost curve and has accounted for more than half of the increase in global supplies since 2010. Between 2010 and 2014, shale output rose by 4 million bpd, accounting for more than half of the 7 million bpd increase in global liquids production over the same period, according to the U.S. Energy Information Administration (EIA). Shale is more expensive to produce than oil from the giant conventional fields of the Middle East but cheaper than deepwater megaprojects […]