Back to the points. US strategic oil reserves are currently at the lowest ever since 1983 and it would take them years of mass imports to be able to fill it up again.
US oil is also a very heavy oil that is extremely difficult to extract and even harder to refine. Hence the high cost. This is exactly why US has always been invading oil rich countries murdering millions to steal their oil!
https://www.reuters.com/business/energy/us-energy-secretary-says-it-could-take-years-refill-oil-reserve-2023-03-23/
Here is with some numbers:
From the ATH to today Venezuela's oil production has decreased by about 2.5 million bpd.
Saudi Arabia alone, in the past year+ has reduced production by 3 million bpd.
So right there alone there is a 0.5 million bpd deficit even if they can bring the production up to the ATH which is unlikely!
OPEC+ countries combined have reduced production more than that (so the actual deficit is actually higher than 0.5 million bpd) and they plan on reducing it more.
https://www.statista.com/statistics/265185/oil-production-in-venezuela-in-barrels-per-day/
Also Venezuela oil is similar to US oil, heavy, hard to extract and refine...
US just wants their oil to desperately try and fix its own economy. Nothing is going to change in Venezuela with or without Maduro.
The sanctions haven't even been removed on the oil sector, since they are only allowed to hand over their oil to US not anybody they like. For example US does not allow Venezuela to sell their oil to India or China
Even if they sell their oil to US they still won't receive the money because it will go to US banks and remain there with US deciding whether they like to give a tiny portion of their own money back or not!