Natural gas and fracking gas wells using fracking of shale-gas source rocks produce half of their potential natural gas in the first year. another 25% is produced in year 2, and the decline continues downward at the same rate. in year 1, the typical barnet gas well produces 1 billion cubic feet of natural gas. the dallas region (barnett shale) had an initial surge in shale-gas wells peaking at about 1000 wells per year, then a slow tapering as the prime targets were gone and lesser targets were left. assume that year 1 had 1000 new wells, year 2 had another 950, year 3 another 900 – a slow drop of 50 wells per year through year 15. using time in years on the x-axis and total annual production (in tcf) on the y-axis, plot the annual production of natural gas from the assemblage of wells at the end of each of those 15 years. use totals at end of each year assuming the first 1000 wells drilled in year 1 had a full year of production equal to 1 billion cu ft (bcf) each. then these wells had the standard rate-of-decline as given above. in what year was the "peak" natural gas production? write your answers as a narrative instead of in scientific notation, ie, $20 million instead of $2.0x106 . using excel is the best way to organize the data.