A pipeline ruptured a few hundred feet from the Mississippi River in New Orleans last month, spilling more than 300,000 gallons of oil, and reports of the spill are only now being discovered. The oil spill stemmed from a pipeline operated by Collins Pipeline Co. and was discovered on Dec. 27 near a levee in St. Bernard Parish, just east of New Orleans, according to The Associated Press. More than 300,000 gallons of diesel fuel were spilled, contaminating soil and creating a pool of diesel in an environmentally sensitive area a few hundred feet from the Mississippi River.