It’s possible that some time in our history we will
learn to mine the gas giants.
Robert Forward’s “Saturn Rukh” is about a mission to study the possibility of mining the planet for helium 3.
Science fiction with lots of good solid science about orbital and rotational velocities and escape velocities etc. Bob Forward was a real deal physicist.
Mining Saturn’s rings for water (Asimov short story) might be — might be — feasible, but it seems more likely that the only space resources likely to be economical and practical to exploit for the next few centuries anyway will be comets and asteroids.