EPA says company had not sufficiently reduced sulfur emissions at four refineries . Exxon Mobil had paid a $ 7.7 million fine in its original 2005 agreement with the government and promised to install new emissions controls at the refineries . The facilities in question are in Texas , Louisiana and California . Comment:
EPA says company had not sufficiently reduced sulfur emissions at four refineries . The facilities in question are in Texas , Louisiana and California . Comment: