Dont entirely agree.
Companies cut back drilling and even some oil fields left idle during low prices. Why? because its not worth the cost of pumping. As it is, even though we are self sufficient
we still import some oil because the imported oil is less expensive.
Many small US and Canadian drilling companies AND oil field companies as well as companies or groups that hold land or leases with oil go bankrupt during times of low oil prices. The banks will only bankroll them for a certain amount of time, even with oil below the surface. Some times they can get lucky and merge. Other times they have to sell off fields to the bigger guys in the hope to still control some.
I actually did ok on some call options many decades ago. Even though it was a LONG time ago, it highlights, just because you pump oil doesnt not make you rich if oil prices are low. Although this was a scandal it highlights that just because you have oil doesnt mean it is cheap to get out of the ground. We can agree that US regulations arent cheap either.
There is also a link to Harken Energy in the story which bought out Spectrum. Harken did ok for me for the few months I owned it

if that long since it was call options instead of stock if I remember correctly but could have been stock. IT was a short term 40% gain.
https://en.wikipedia.org/wiki/Harken_Energy_scandal