06/25/2010 01:25 am ET | Updated May 25, 2011

Gulf Drilling Firms Gear Up For Spill Liability Fight

As BP opens its checkbook to pay damages related to the Gulf of Mexico oil spill, it is beginning to do battle over a high-stakes question: Who else bears liability?

Some of the companies involved in the drilling operation are laying the groundwork to argue: not us.

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