NEW ORLEANS - A federal judge in Louisiana on May 4 dismissed four environmental groups from a lawsuit over an alleged ongoing oil spill in the Gulf of Mexico caused by an underwater mudslide during Hurricane Ivan in September 2004 after finding that the groups lacked standing to pursue claims under Federal Rule of Civil Procedure 12(b)(1) (Apalachiola Riverkeeper, et al. v. Taylor Energy Company LLC, No. 12-0337 "Section E," E.D. La.; 2013 U.S. Dist. LEXIS 64388).