“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.
An industry with a similar name and appearance appears in Adventure Capitalist.