Of course, the primary point of the North Slope case history is that it illustrates the "Undulating Decline" pattern that we have (so far at least) seen in US crude oil production since 1970. As noted above, Alaskan crude oil production increased at 20%/year from 1976 to 1988, to a production level below the 1970 rate of 9.6 mbpd (C+C, EIA). Contrary to the widespread disinformation campaign in the media, the current increase in US crude oil production is not the first increase in US production since 1970.
I certainly concede the point that the very slow increase in global crude oil production since 2005, combined with a material post-2005 decline in Global and Available net oil exports, have provided considerable incentives for US oil companies to make money in tight/shale plays. But I think that the assertion by many in the Cornucopian camp that shale plays will result in a virtually infinite rate of increase in global crude oil production is wildly unrealistic.
And as noted up the thread, we are still facing high--and increasing--overall decline rates from existing oil wells. At a 10%/year overall decline rate, which in my opinion is conservative, the US oil industry, in order to just maintain the 2013 crude oil production rate, would have to put online the productive equivalent of the current production from every oil field in the United States of America over the next 10 years, from the Gulf to the Eagle Ford, to the Permian Basin, to the Bakken to Alaska. Or, at a 10%/year decline rate from existing wells, we would need the current productive equivalent of 10 Bakken Plays over the next 10 years, just to maintain current production.
On the natural gas side, the recent Citi Research report (estimating a 24%/year decline rate in US natural gas production from existing wells), implies that the industry has to replace virtually 100% of current US gas production in four years, just to maintain a dry natural gas production rate of 66 BCF/day. Or, at a 24%/year decline rate, we would need the productive equivalent of the peak production rate of 30 Barnett Shale Plays over the next 10 years, just to maintain current production.
In any case, I suspect that most of the shale plays, even the commercial plays, will turn out to be gas prone. Note that the outlook for crude oil production from the Utica Shale changed dramatically in only one year:
Ohio's well data shatters shale oil hopes (May, 2013)http://articles.chicagotribune.com/2013-05-16/business/sns-rt-us-ohio-utica-databre94g00b-20130516_1_gas-production-eagle-ford-oil-production