Officials are seen at the scene of a leak from a crude oil pipeline on Tuesday, March 18, 2014, in Colerain Township, Ohio. A Colerain Township fire official said the leak has been contained and that there is no immediate danger to the public. Capt. Steve Conn told The Cincinnati Enquirer oil leaked into a creek and collected in a marshy wetland, and it wasn't clear whether it reached ponds and the Great Miami River. (AP Photo/The Cincinnati Enquirer, Gary Landers) MANDATORY CREDIT; NO SALES

Officials are seen at the scene of a leak from a crude oil pipeline on Tuesday, March 18, 2014, in Colerain Township, Ohio. A Colerain Township fire official said the leak has been contained and that there is no immediate danger to the public. Capt. Steve Conn told The Cincinnati Enquirer oil leaked into a creek and collected in a marshy wetland, and it wasn't clear whether it reached ponds and the Great Miami River. (AP Photo/The Cincinnati Enquirer, Gary Landers) MANDATORY CREDIT; NO SALES