That said, if you can find the land owner most will be willing to give you permission and warn you about hazards to worry about. Figure out how to do it right and for free - with a good insurance that you won't harm their land and you will have more work where you can get permission than you lifetime will allow you to fix.
Minimum cost would be in the $80k-100k range. Double or triple that if you run into any issues. My most expensive abandonment was around $400k, which was for a simple, vertical 5000ft well.
Also, old infrastructure is really old. It's not things from 20 years ago. It's 50-100 years ago. The law requiring escrow or insurance (it has some holes) dates from the 70's.
Finally, it often isn't done properly. Either way, there are a ton of improperly plugged and abandoned wells and other leaky infrastructure that goes undetected.
The regulations you're describing have existed for a long time, but that's not enough to fix the full issue.
https://welldonefoundation.org/faq/
Seems like the old wells effectively get defaulted to state ownership once the last owner goes bust.
The photos depicted in The Guardian article show some site in Midland County, TX that appear active to me, but the images do not bear any road markings or distinct physical landmarks to logically place an address and cross reference with local and state data to determine if it’s an active site or not.
https://www.rrc.texas.gov/resource-center/data-visualization... ("Federally Funded (IIJA) Well Plugging")
https://www.houstonchronicle.com/projects/2023/orphan-wells-... ("Are there orphan wells near your home? Map shows locations around Houston")
https://www.edf.org/sites/default/files/2021-10/Orphan%20Wel... ("Mapping Orphan Wells in Texas")
(Texas Railroad Commission has lat long of all wells, should be straightforward to overlay methane emission data with these points)
Apparently, the underlying science is basically that "wigglier" molecules have more propensity to intercept photons, and that's why molecules like methane and refrigerants have more impact than the relatively simple CO₂.
Don't get technical with me.
Methane is 25x worse than carbon dioxide - despite having the same amount of carbon.
That's a very... ummm... interesting definition of "carbon neutral".
Texas has a lot more historical production of oil and gas, which should result in a lot more old and abandoned wells. That doesn't give them a pass, but if this hypothesis is true, this flaring regulation would not have a major impact.
https://www.reuters.com/article/us-usa-drilling-abandoned-sp...