I don’t think Art has been fully discredited.
The declines of 70% on his family of wells examples is for real and so are the flush economics of the wells. If you understand decline curves and oil and gas economics the point he makes is clear.
The marcellus article is just talk with no facts and the chron article is from 2009 and says nothing to discredit Art at all but merely reports what he says and says that devon and chesapeke are doing well as is petrohawk etc. They aren’t doing so well now. In successful efforts accounting they are goners as they are in most of the their debt to equity ratio calculations for solvency with the rules that they implemented in ‘09 their reserves attributed to drilled and undrilled are in the dumper by nearly 50%.
I have had Art in my office explaining his work in 2010, and seen his work for years.
He is associated with another who is like him: scare mongers who use selectively data to support a ‘sky is falling’ atmosphere.
Bankers like someone like that to true up an oversell that oil companies might give to them, so there is work out there for types like that.
And yes, I do understand decline curves after working +40 years as a Reservoir Engineer, Reserves auditor and Petroleum Economist.
The world is much brighter than how he portrays it.