Settlement dates....cash prices year ago Cash Prices......year ago http://www.wsj.com/mdc/public/page/2_3023-cashprices.html natty.....Settlement dates http://www.cmegroup.com/trading/energy/natural-gas/natural-gas_product_calendar_futures.html Natty Spot Price Tracker http://www.naturalgasintel.com/CFTC cc