Top opportunities · Week 26

Four harsh-environment semi-submersibles working in Norway, from the 2009 Aker H-6e Transocean Spitsbergen to the 2019 Transocean Norge.

Seven harsh-environment semi-submersibles, including three GVA7500 Enhanced units delivered 2009 to 2014.

Sandnes-based owner of four semi-submersibles: three GM4000 sister rigs and the GG5000 COSLProspector, built 2010 to 2014.

Operator of the Ekofisk area, on stream since 1971, and the Eldfisk complex in the southern North Sea.

Largest operator on the shelf. Its oldest concrete platforms, Statfjord A and Gullfaks A, came on stream in 1979 and 1986.

Operator of the Valhall field centre, on stream since 1982, and of the Edvard Grieg and Ivar Aasen platforms on the Utsira High.