$this->bbcode_second_pass_quote('Pops', 'B')ut let's just say that the EIAs resource number is right; and with a swipe of the magic hand all the listed impediments are swept away, (governments cede mineral and production rights to landowners and make taxes favorable; roads, rails, pipelines water sources spring into existence; manufacturing infrastructures appear from nowhere, protesters vanish, etc);
and let's say the economy has no problem with $1-2-300 bbl prices...
IOW, all that shale could be magically unlocked.
It would delay peak at most 5 years.

My guess is all of that won't happen in a timely enough manner to significantly offset the decline of the giant conventional reservoirs that are 80% of production. It's better than a sharp stick in the eye but then the only real surprise was how resilient the economy was to high price with help from unlimited government credit. The whole peak oil theory is that peak happens somewhere around the half-point of production... the second half has to come from somewhere.
For that matter, I don't necessarily believe LTO has peaked in the US, at least in the sense that it is a physical, geological impossibility for the flow to exceed the prior peak. Given $1-200 prices tomorrow, I have no doubt it would soon surpass last year. But every minute that goes by is another minute of declining legacy production and depleting resource base.
The underlying, most important fundamental of course is conventional depletion. But even more so with the very fast LTO decline. Depletion never sleeps, it continually erodes the $10 shoulders that $100 LTO stands on... even as we tap blather into the ether. That is and always has been the key to delaying peak oil, offsetting continuous depletion.
The question is, how long before decline / depletion of conventional and the LTO sweet spots already tapped makes revisiting the previous peak impossible?
1 year?
3-4-5 years?
Tik-Tok
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Something we have not spent much time talking about the last year because of low prices relevant to your comment above. For at least the period 2011-2014 I heard the more right knee jerk types complain that President Obama refused to issue any oil drilling leases in the Federal lands where over half of the Bakken shale beds are located. All of the drilling and fracking done in the last seven years has been on private or state lands exclusively leaving something like 60 percent of the Bakken play out of bounds for the drilling companies.
So what will the policy of a President Clinton or a President Trump be with regards to drilling federal lands and fracking the shale beds under it? If the price goes back into the $100.00/bbl range by the inauguration in January 2017 or soon after that federal leasing could be the key issue to the USA once again producing a lot of fracked shale oil. I get the feeling no matter who wins the election there will be enormous pressure to open federal lands to drilling.