I think you'll find these are (mostly) oil _platforms_ not oil rigs. Source: http://www.theshippinglawblog.com/2018/08/what-is-difference-between-oil-rig-and.h

I think you'll find these are (mostly) oil _platforms_ not oil rigs. Source: http://www.theshippinglawblog.com/2018/08/what-is-difference-between-oil-rig-and.html?m=1 http://www.theshippinglawblog.com/2018/08/what-is-difference...