New Jersey Sen. Raymond J. Lesniak, D- Elizabeth, N.J., holds up petitions with over 15,000 signatures against New Jersey Gov. Chris Christie's announced settlement with Exxon Mobil Corp., Tuesday, April 7, 2015, in Linden, N.J. L... . New Jersey Sen. Raymond J. Lesniak, back right, D- Elizabeth, N.J., listens as Linden Mayor Derek Armstead speaks against New Jersey Gov. Chris Christie's announced settlement with Exxon Mobil Corp., Tuesday, April 7, 2015, in Lin... TRENTON, N.J. - The price tag for cleaning up two petroleum refineries in northern New Jersey will likely cost Exxon Mobil much more than the $225 million settlement brokered by Gov. Chris Christie's administration, officials say.