12 November 2017. Final sea trials for the Blue Whale II underwater drilling rig are now underway, according to the technology’s producer, CIMC Raffles, marking a new milestone drilling rig developments.

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https://oilprice.com/Latest-Energy-News/World-News/The-Oil-Rig-Drilling-10-Miles-Under-The-Sea.html

At industryabout.com:

World - Oil and Gas Map

 

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