And how much do they pay to extract the oil from public lands?

This is very relevant because of this new thing that just happened. There was an auction for rights to install an off-shore wind farm. The final price was $4.3 billion. This tells you the value of green energy: it's so valuable that you could convince investors and banks to pony up the money.

https://www.cnbc.com/2022/02/25/us-offshore-wind-auction-in-...

So what are the auction prices for oil extraction?

https://www.denverpost.com/2021/10/07/john-hickenlooper-oil-...