The Ninth Circuit held that a property owner who purchased the site at a tax sale is not entitled to CERCLA's third-party defense to liability for cleanup costs. The purchaser had a "contractual relationship" with the prior owner by virtue of the tax sale. Given the breadth of CERCLA's definition of...

A Colorado court, on motions for summary judgment, held that state and federal law preempt portions of a city ordinance concerning the regulation of oil and gas development within its boundaries. The provisions for minimum setbacks prohibit what state regulations would allow. As such, they are preem...

A district court dismissed environmental groups' NEPA and National Historic Preservation Act (NHPA) claims against BLM in connection with its approval of oil and gas drilling on public and tribal lands near Cacho Cultural National Historical Park. The court agreed that the groups have standing to pu...