Bayou Corne is a collapsed Salt Dome Storage Facility and has ZERO to do with hydraulic fracturing in a production well. The storage facility was created by leaching out the salt and there is NO WAY anyone would consider fracturing a hole designed to KEEP the oil/gas in. Fracturing is done to let the oil/gas/water out.
Check this link for current videos of the situation and pictures prior to the sink hole opening.