The U.S. energy industry has taken its role of savior of Europe seriously. After boosting LNG exports to a record because of Europe’s thirst for energy, oil exports from the U.S. are now on the rise, as well, but the trend may not be sustainable. Reuters’ John Kemp wrote in a recent column that the United States became a net exporter of crude oil and fuels last month, with the difference between imports and exports at 3 million barrels daily. He also noted, however, that a lot of this oil was coming from inventories that had now fallen…