The best wells drilled in the Permain Basin HZ shale oil play are behind us now; the heart of the watermelon has been eaten. Whats left after all this stupid exporting nonsence, for America and OUR future, you are not going to like and at some point in the near future you are going to ask yourself ...what the hell were we thinking?!!
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Years after the shale oil is depleted, many truths will come out about the nuances of the basins. The greed factor has out-run the ability of geologists to discern those truths as production is occurring.
For example, up in the Bakken (Divide County just south of Saskatchewan) some of the best production is coming from the thinnest benches, inversely proportional to SoPhiH. Finally, after many wells, it was discovered that the brown dolostone is absolutely full of oil (by flurescence). Not only that but there are more long-chain hydrocarbons than there should be, implying migration of heavy oil into a stratigraphic trap--where it has mixed with LTO.
In most parts of the Bakken it would appear that 800 feet spacings will isolate meaningful communication. However, in certain areas with heavily laminated shale, there are far-reaching communications, whereas in certain areas there is virtual isolation. The Nancy is a big well, sitting pretty as you please between other big wells, and has a pressure of ~3900 psi, near virgin.
There are other weird things being discovered. Large Three Forks wells are depleting the D facies of the Middle Bakken more than the Three Forks. Seems the D facies has the best flow characteristics and depletes first. This is a pretty big story in and of itself. (What really got fracked?)
I'm convinced that this shale oil story is going to be a trail of tears from not taking the time to study what's happening in various sweet spots, and by preservation of the reservoir pressure. All of these basins are being treated as homogenous, and they're not. The Bakken has the large Neesen anticline, the migration story of non-polar heavy oil components from Canada, and many different zones of water cuts (which in the Bakken seem to be inversely correlated with production). It's actually a very complex thing with beautiful geology, being treated like a printing press.
Approximately 55,000 active HZ wells in the Permian Basin uncoventional shale play drilled since 2013 have produced aound 15 G BO. Thats 273,000 barrels of oil per well. The best wells for estimated ultimate recovery were drilled before 2016 on reasonable, rational spacing. Today. 50% of all HZ wells drilled in the Permian produce 30 BOPD and 140 BWPD, on artifical lift and are declining at the rate of 12% annually.
Then there is this, on the left, which is indeed... staggering.
Think about this chart of the left for a second, aside from the EUR issue and how it pertains to 80G BO of "recoverable resources" in the Permian...
The cost per barrel of shale oil to get it out the ground is more than oil sells for at the moment, with interest expense and dividends. That does not even include paying debt back. Trump drives oil down to <$50 net at the WH. Companies no longer able to borrow money have to STOP drilling wells; they can't afford to drill wells. 50% of 11 MM BOPD of U.S. tight oil disappears in just 18 months. Over 5.5 MM BOPD, gone. What does the loss of 5 .5 MM BOPD do to the price of oil on the world market?
See how stupid this drill baby drill plan was. Shale oil is not conventional stuff that declines 3% per year, if you are not drilling HZ shale oil wells, constantly, you remove a very large volume of oil from the market very quickly. You also destroy a sector of the oil industry that still has $200 B of long term debt, has already pissed off $500 B of debt (2012-2020) and still has tens of billions of dollars of plugging liability and instrastructure to rig down and dispose of.
I'm told this is a big deal, to ask AI about EUR's in the Permian Basin and the primary answer is something I wrote.
I am trying to sort this shale oil stuff out. Working from the top down from some hypothetical bull shit about technically recoverable resoures that some government funded entity estimated 7 years ago, then trying to make real life fit on p50, or p75 basis, is stupid. The oilfield does not work that way. Nobody has ever been thru anything remotely like production from unconventional shale.
What exactly is the point in qualifying a prediction about the future by saying you are likely to be wrong, then making the prediction anyway, over and over again, one model after another? I can think of no bigger waste of time in all of life. 95% of internet experts analyzing oil and gas these days did not even know the difference between pipe dope and condensate 13 years ago.
The only way to predict the future is with bottom up analysis done as things change, which they do all the time in the oilfield. Why are EUR's falling in core areas is the key to understanding the future. You can't know where you are going unless you know where you've been. Data is just numbers unless you know what they mean.
MORE ON EUR'S
Hart Publications recently reported two big Dean Formation wells in 2024 along the Martin, Howard, Dawson County lines, supposedly a hot spot for Dean production. FANG drilled two wells in this area that made 250,000 BO in the first 12 months of production each...absolutely gutted they were. Here is Novi chart thru February 2025 for three of the biggest operators in the three county area in the Dean, Wolfcamp A & B, Upper and Middle Spraberry benches. Lower Spraberry was intentionally omitted. Historically this has been area where Wolfcamp A & B outshines the Lo. Spraberry by a signficant margin. These two monster Dean wells had no signicant impact on the area, clearly, though 2025 wells (<10) appear set to have bigger IP60's.
These are production profiles, upper right, NOT EUR's. EUR tracks can be implied by looking at production profiles, little else, and when the DCA is performed in the profile, what methodology is used and what parameters are used in the methodology are important. EUR's are very subjective.
In 2021 the dog dookey poured out of the Midland Basin about 1.5MM BOE EUR's that are going to struggle to make half that even at 6:1 E. Still well profiles tell a story worth listening to.
Here we see three companies, including FANG, OXY and SM drilling two big benches in Tier 1/2 area cores (Martin, FANG's 'hood) where 2024 cumm prods. at month 15 were 16% lower than 2023 cummprods. You won't hear too much about this kinda stuff, what you will hear, instead, is that two big Dean completions, of many Dean completions in the area, now open thousands more drilling locations for the future. Which is hooey. But if you don't dig this stuff out then are you are left with is top down EIA projections. Good luck with that.
AN HONEST QUESTION FOR PEOPLE SMARTER THAN ME...
In 2021 Saputra etal, here, https://www.mdpi.com/1996-1073/15/1/43, predicted that Permian EUR's would increase with increased lateral length. It does not appear to me that has been the case and I can assume several reasons for that, mostly having to do with well spacing, initial GOR's in overdrilled cores and increasing WOR. Granted EUR's can be very qualatative but it appears, at least to me, longer laterals are actually reducing EUR's. [1]
To quote Cousin Vinny, "does the above statement still hold wata?"
[1]
Oil production is being affected by low prices and rising costs (including share buybacks and dividend commitments).
For example, Exxon Mobil needs a price of $88 a barrel to meet these commitments (and that's not even considering the impact of new steel tariffs).
https://www.hellenicshippingnews.com/trade-turmoils-oil-market-bite-is-already-leaving-lasting-scars/