The most ambitious speculative gamble ever seen in the offshore construction business has started to pay off.

At 18.00 hrs on 22 August, the mighty decommissioning vessel Pioneering Spirit slowly backed away with the 13,500 tonne topsides of the Yme production platform safely transferred to its keeping.

After decades in development and construction, the unique ship had at last performed the critical centre-piece of its first commercial contract, at this location 100 kilometres off Norway.

That