U.S. Flyers bomb Axis Oil Fields.

U.S. Flyers bomb Axis Oil Fields. A column smoke over an oil storage tank of the Steaua Romano refinery at Campina, twenty miles from Ploesti, marks a direct hit by one of the more than 150 U.S. B-24 Liberator bombers participating in a low-level air attack on the Rumanian fields, source of one-third of the Axis oil supply in Europe, on Aug. 1, Two thousand American airmen bombed the refineries, storage tanks, distilleries and cracking plants of the region and long after the planes passed, delayed-action bombs continued to explode.