StatoilHydro is a 30% partner in a group of Chevron-operated exploration licences west of Shetland. In late 2008, drilling commenced on an exploration well on Rosebank / Lochnagar North.

In 2008, Hess drilled a discovery well on the Amos Prospect, which is located four kilometres south of Schiehallion. StatoilHydro has a 17.65% interest in this discovery.

In 2008, a high resolution 3D seismic survey and a pilot ocean bottom cable seismic programme were acquired over the Mariner Field. A well was also drilled and tested on Bressay in 2008. In addition, StatoilHydro completed a well on the Broch Prospect (9/11e-14) in this heavy oil area.

The Mariner and Bressay heavy oil fields have been established as development projects but with further appraisal drilling ongoing. These fields are described in report section 3.2.6.4.1 Operational review, International E&P-Fields in development and production-Europe, Caspian region and Russia-United Kingdom.