Terry Vine / Getty Images Topside (or topsides) refers to the above-water portions of an offshore oil rig, or any parts which are above the waterline. The structures that make up the topsides are ...

The entire topside—the above-water portion ... National Artificial Reef Plan, which allowed oil platform operators to donate decommissioned rigs to states as “artificial reefs.” ...

An enormous oil rig platform has arrived in Teesside for dismantling. Weighing 31,000 metric tonnes, the Brent Charlie topside platform has been delivered to Able Seaton Port, in Hartlepool.

The Brent Charlie topside oil rig is towed on the Allseas Iron Lady cargo barge into the mouth of the River Tees as it heads for dismantling, July 19. The 32,000-tonne Brent Charlie is the last ...