Elite Oil Fields Redefine Meaning of Crude’s ‘Big Three’ CNBC: Move over ExxonMobil, Chevron and ConocoPhillips—there’s a new “Big Three” in U.S. energy production. And they’re not companies. In a new update to its drilling productivity report from last week, the Energy Information Agency said North Dakota’s Bakken and Texas’ Permian Basin and Eagle Ford Shale are quietly generating… Keep reading →