Exxon and Chevron believe that a ban on fracking will only shift economic benefits out of the U.S. and possibly raise the price of oil, the two largest U.S. oil companies said in their first comments on the idea of Democratic presidential hopefuls to ban fracking and new leases for oil and gas development. Senators Elizabeth Warren and Bernie Sanders, two of the front-runners in the Democratic Party’s race for nomination in recent polls, have promised to ban fracking , on a collision course with the oil industry and even with some Democratic governors in some western oil states . “On my first day as president, I will sign an executive order that puts a total moratorium on all new fossil fuel leases for drilling offshore and on public lands. And I will ban fracking—everywhere,” Warren tweeted in early September, while Sanders said less than a week later that […]