REPORT THIS MONTH LAST MONTH DIFFERENCE   Oklahoma 56.70 59.00 -2.30 OKLAHOMA 10 MONTHS 27 MONTHS THIS YEAR Average 59.86 51.00 55.81 High 63.90 63.90 63.90 Low 53.50 38.80 38.80 Data provided by iNet Solutions Group, Inc. All commodity prices delayed 10 minutes.