The turning point came in April 2015, when Senator Lisa Murkowski, chairman of the Senate Energy Committee, observed that the export ban “equates to a sanctions regime against ourselves.” Why, she asked, was the U.S. government lifting the “sanctions on Iranian oil” as part of the 2015 nuclear deal “while keeping sanctions on American oil”? She was joined by two other senators in arguing that exporting crude oil to “our friends and allies” would bolster both the security