There are currently 785 operating offshore oil rigs throughout the world, and another 709 rigs that are being built, or are not currently operating.
This company, for example, has 7 new offshore rigs being built currently.
This is the Ocean Nugget, a rig operated by Diamond.
First built in 1975, this one rig can produce around 1,170 barrels of oil per day. That’s a lot of barrels.