A total of six development wells have been drilled on the Causeway Field close to the Dunlin and Brent fields in the UK northern North Sea. The wells are planned tied back subsea via the Merlin manifold to the Dunlin platform in a two-stage development. The first stage is scheduled to start production of some 7000 barrels oil per day in third quarter 2011. The second stage is to be added one year later, increasing the production to 8000 bopd and extending the life of the field. With the use of cost-effective technology and the small field tax allowance, the economics of the field will be attractive.