BP's Treatment in U.S. Court

From the Washington Post:

After a blowout at its Macondo exploration well killed 11 workers, set fire to the Deepwater Horizon oil rig and triggered a massive oil spill in the Gulf of Mexico, a contrite BP vowed to “make things right” and set aside $42.5 billion to do so.

But nearly four years later, BP knows just how hard things can get in the Big Easy.

If BP does not like the outcome in U.S. court, and the TTIP is completed, is there an investment claim in here somewhere?