Premier Parks (which recently changed its name to Six Flags, Inc.) is the owner and operater of all Six Flags parks. The company has licenced the right to use Looney Toons and other WB characters in their park from Warner Brothers, but Warner Brothers does not own or operate the parks in any way. (Which, in my opinion, is a shame, because if WB were in charge, the Six Flags parks would probably be more like Disney or Universal Studios... oh well.)