Just how has Marcellus continued to grow at such a blistering pace? To start, the industry’s learning curve has been impressive. Marcellus natural gas production continues to grow despite a drop in rig count since 2012. Historically, natural gas volumes have responded to shifts in rig counts. Analysts have argued that it would be difficult for the industry to maintain production with a slowdown of drilling activity. (Fracking) has turned this logic flat on its face.