"Illinois Attorney General Lisa Madigan sued current and past owners of Phillips 66's Wood River, Illinois, refinery on Tuesday, alleging the ground water in the nearby town of Roxana, Illinois, was contaminated by the plant."

"A spokesman for Phillips, which operates the 356,000 barrel-per-day refinery with Cenovus Energy Inc in a joint venture called WRB Refining LP, said the lawsuit appeared to be concerned with the clean-up of the refinery site by previous owner Royal Dutch Shell Plc.

Madigan said current and past owners had to be held accountable for the allowing oil, gasoline and hazardous wastes to leak into Roxana, Illinois' groundwater."

Erwin Seba reports for Reuters May 30, 2012. [2]