Viewed from a helicopter, the Dan Bravo rig is not as such a particularly impressive sight - at least not compared to its numerous younger colleagues in the rig cluster in the North Sea's Dan field.

The small, four-legged structure 200 kilometers west of Denmark's western coast is far smaller than the Dan Foxtrot rig, located close by. Well drillings and capacity are smaller, and the rig employs fewer people. But the small lump of metal still commands a degree of respect because the rig in many ways marks the first chapter in Denmark's oil and gas history.