yes and no first the helms Burton act title III allows a company to sue traffickers in confiscated properties like In this Example Plaintiffs are seeking 100X the original amount $7.8 million now valued at $792 Million WOW!
this one is against a Cuban government run company and if Exxon didn't think they can collect then why run up the tab now but yes they can collect though seizures and attachments CUBA has Money the Generals are all Billionaires