A selected summary of Southern California-related business litigation developments during the past week.

Gas Tax Indictments: Six men were indicted on federal charges alleging that they defrauded the Internal Revenue Service out of more than $1.3 million in 1987 in a gasoline excise tax scheme in which their four wholesale gasoline companies in California avoided the then-9-cent-a-gallon tax by maintaining that other, fictitious firms were responsible for paying the tax. The indictment also alleges that the defendants pocketed the tax when they sold the gas to non-exempt customers. Named in the indictment are Oleg Yasko, 38, Boris Lomazov, 47, Lieb Yarmolkin, 44, Feliks Rozen, 53, Jeffrey Torgan, 28, and Roman Raskin, 44. (Case No. 90-936. Filed Dec. 11, 1990)