Thanks for the lesson on rocks, rocks!
The obvious reason for making $10 million dollar holes is that $1 million dollar holes are over, extinct.
H drilling and fracking a shale well with a mile of contact in a shale layer 2 miles down and only 50' thick is a pretty amazing thing. The mobilization and tech to produce the frack boom is pretty awesome. But the mere fact the boom happened, is proof enough of the conventional peak. Again, why make $10M holes if $1M holes would do?
I have no idea if the same will happen elsewhere, but the
EIA reference case from last year was for the US boom to peak 2020-ish then tail off over the following decade. Pretty well just as Tanada said.
The variable will be supply/demand as always. If demand comes roaring back, the price will jump and so will drilling and the local peak will come faster. If demand rises slower, so will price and drilling will stay confined closer to the sweetie places.
But as ever, depletion and decline continues. Lower demand growth means production will continue to fall and even eventual high price won't be able to bring it back to the previous level.
IOW, even $10M holes will be become extinct
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The legitimate object of government, is to do for a community of people, whatever they need to have done, but can not do, at all, or can not, so well do, for themselves -- in their separate, and individual capacities.
-- Abraham Lincoln, Fragment on Government (July 1, 1854)