Their stated intent was to finish drilling by 6/30/15.
As of 10/31/13 they had completed 80 out of the 118 development wells to be drilled, or 68%.
In the three month period ending 8/31/13 they completed 6 wells while running two rigs.
Assuming things remain somewhat constant that would put them in a position to finish by their original target of 6/30/15.
Why you added up the cumulative well totals from the cumulative minimum well requirement table is beyond me. How you concluded that by adding the numbers from said table for periods ending after 12/13 you would find the number of wells left to be drilled is equally perplexing. Given that the total number of wells to be drilled is only 118 you might think that concluding that 523 more needed to be drilled is an idea that needs to be thought through more carefully.