Wow, the US has just under a million operating U.S. oil and natural gas wells? That number surprised me, I don't know what I expected but I wouldn't have guessed that many.
Oil wells have super long useful lives (50+ years) but The majority only produce <15bbl/day due to decline curves (especially pronounced gor.
The footprint of a well pad is pretty small one they’re in production ~<1/4 - 1/2 /acre. Many modern well pads can have multiple wells (4/6/12) due to directional drilling, further increasing well count.
In North America alone, 30,000 square kilometers for all oil and gas[0].
For a rough approximation, the US produced 14% of oil in the world in 2021[1] and this guy on Quora[2] says that 12% of the world's oil and gas goes into aviation fuel.
https://www.eia.gov/petroleum/wells/pdf/full_report.pdf