Comment by ethbr1

The relevant phrase is underway replenishment (aka UNREP) https://en.wikipedia.org/wiki/Underway_replenishment

It's been the basis for at-sea supply of long-endurance ships since ~1910 when refueling oil became a key blue sea naval requirement.

Modern example: https://m.youtube.com/shorts/kzncvGBj-88

Mostly tensioned cables carrying hoses (liquids especially fuel being the highest volume / limiting factor), some palletized transfer over cables, and some helicopter lift (because the flight pads/decks are already sitting next to each other while everyone is waiting for fuel to finish).