iGaming Business – US oil giant Chevron has been given the go-ahead to sue PartyGaming founder Russell DeLeon as part of a 20-year legal battle between the oil company and Steven Donziger, a US lawyer representing Ecuadorian nationals in a pollution case against Chevron. Bloomberg Business Week reports that a judge in Gibraltar, where PartyGaming (as it was then known) is licensed and DeLeon relocated to from the US in the early 2000s to run the business with co-founders (and ex-wife) Ruth Parasol, Anurag Dikshit and Vikrant Bhargava, has “ruled that Chevron can proceed with a lawsuit seeking unspecified damages…