"Comrades no longer need to suck on comically long straws to extract oil from ground. Glorious!"
Oil Rigs are the sixth tier in the 
Ore Industry. They cost 
1 B Deep Bores, 100 NN Ore, and 
3 Comrades. They produce Deep Bores and are produced by 
Tankers. They are automated by Lt. McRhodey, who is unlocked at 
Rank 33. The first mission involving an Oil Rig appears in 
Rank 31.
Oil Rigs are also featured in the Quest for Oil event, where it's the second tier in the Oil Industry.
An industry with a similar name and appearance appears in Adventure Capitalist.
