Maintaining things sitting in the ocean is still expensive. You can’t send robots out, you must send humans. Oil rigs are worthwhile just because they can be t

Maintaining things sitting in the ocean is still expensive. You can’t send robots out, you must send humans. Oil rigs are worthwhile just because they can be turned on/off relatively easily depending on market conditions and when they are on, they mint so much money that expensive humans are a rounding error.