The reason for this is icebergs. Both the Terra Nova and White Rose developments use a floating production platform connected to clusters of subsea wells.

Here at the southern end of the "iceberg alley" that runs down the coast of Labrador and Newfoundland, there is always the chance of a berg drifting into the field area in late spring.

In the face of such a threat, the production vessels on both projects are designed to disconnect and move away.

However,