It's Raining Oil In Louisiana?Ben Wojdyla6/23/10 2:20pm1EditPromoteGo to permalinkLouisiana residents 45 miles off the Gulf of Mexico claim to have videotaped an oily substance raining down. Worst case scenario? It's petroleum mixed with Corexit, the cancer-causing dispersant BP's spraying on its oil slick. Best case scenario? Dirty roads.