The good news is that a Marcellus shale well will produce economic volumes of gas for thirty or more years. In the world of shale gas in Ohio, the top-producing wells aren't king of the hill for long. In a nutshell: money – how much, when and for how long. In this volume is something totally unique and extremely important: a new section on Marcellus shale well decline rates. The graph above shows you what a typical Marcellus Shale Well decline curve looks like. 70% is probably a good number. By. Home » Oil and Gas » Royalty » Decline of Natural Gas Well Production and Royalties Over Time. The average first year decline rates across Pennsylvania appear … The Marcellus decline rates, as well as all of the other shale plays, are very high in the early years. You can see from the graph that in the beginning, the amount of oil and gas produced from the well is extremely high. By way of example, if a well has an initial production rate of 10 million cubic feet (mmcf) per day, and declines over the first year to 3 mmcf per day, future production estimates need to be based on 3 mmcf per day. Why should decline curves and associated EUR’s concern a local leaseholder? Every well is going to be a little different, but generally speaking the decline curve above shows you what the production of a well will do. In this article I will take a closer look at production trends in the Pennsylvania Marcellus as well as developments in other gas producing states to show that US natural gas production is rolling over and there is little that can be done to ... high decline rates and; ... marcellus.com The latest Marcellus Shale News, local energy related community news, Marcellus housing and Marcellus jobs. Production and Royalty Declines in a Natural Gas Well Over Time The production rate of a natural gas well will decline over time, and that will cause royalty payments to fall unless prices rise dramatically. MDN is extremely proud to announce the release of the Marcellus and Utica Shale Databook 2013, Volume 3, covering permits and happenings in northeast shale drilling from September to December 2013.Make no mistake, we are blowing the trumpet and blowing it loud. Decline Curves and the Marcellus Leaseholder. But most people in industry are looking at correlations between initial production rates and ultimate recoveries. Take the Tippens 6HS well, for example. The Marcellus is close to Peak Production and why this is so Important. Home; Top Stories.