Can someone please show the working to the following questions! Many thanks! What is the total oil production? What was the approximate total cost of oil production in month 1? If a gallon of oil is sold at $0.89. how much profit would oil Rig D64 have made m the 6-month period (based on the targets, and taking production costs into account)? If a litre of oil is sold at $0.89. which oilrig made the most profit in the 6 month period