Hill: President Obama on Friday said building the Keystone oil pipeline would not even have a nominal benefit to consumers, pushing back at claims it would lower gas prices further. Obama stressed that the issue at hand for Keystone is not American oil, it is Canadian oil. That oil currently is being shipped out through rail or trucks and it would save Canadian oil companies, and the Canadian oil industry enormous amounts of money if they could simply pipe it all the way down to the Gulf, Obama...