BP says a preliminary estimate shows between 15 and 39 barrels of oil have been recovered from the lake at its Whiting refinery.
Friday, Sen. Durbin said the spill has to be taken very seriously and someone will be held accountable.
Also on Friday, a group called Global Climate Convergence Chicago staged a protest downtown over the spill in Whiting.
They are calling for drinking water to be tested and for more scrutiny of BP following the spill.
