1. Rig Superintendent OIM Offshore Installation Manager (Offshore Rigs): manages Company’s interest at the rig site in respect to our clients, the well program and all personnel on board the rig. The rig Superintendent is the overall responsible person for QHSE, Maintenance, Drilling Operations, Personnel (including sub-contractors) , Assets protection, management, Monitor vessel stability, Plan operations with barge control, Supervise and perform jacking operation.

2. Chief Engineer: The job functions as Chief Mechanic who is looking for the jacking system and the stability of the offshore rig.

http://www.arabdrill.com/?page_id=44

The Chief Officer must bear in mind the various destinations of the goods the ship carries, and arrange things, as far as he can, to see that the cargo for a certain place can be lifted out without disturbing the other cargo. The Chief Officer must watch closely the ship's stability (i.e. what the ship's trim is or how she is sitting). (Макар че тук става дума за кораб, принципът е същият.)
http://www.pfri.uniri.hr/~bopri/documents/17-ME-tal_000.pdf