The Supreme Court won't hear appeals from BP and Anadarko Petroleum Corp. over Clean Water Act fines for the 2010 Gulf of Mexico oil spill.
The justices on Monday let stand a lower court ruling that said the owners of the blown-out Macondo well could not avoid federal fines for the spill by blaming another company's failed equipment.
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The companies had argued that the oil had not leaked from the well itself, but from the broken underwater pipe that connected the well to the rig owned by Transocean Ltd. That riser was ripped apart when the burning rig sank. The companies argued that the rig's owners should be the only companies to pay.
A district judge and a federal appeals court rejected that argument.