A series of six programmes with Raymond Baxter and Michael Buerk
Sweet Oil - The words were used by BP to announce the discovery which launched Britain into the age of oil. In less than ten years oil has become our most booming industry and the one which largely will determine how our future can be shaped.
So why do oil companies go to extraordinary lengths to keep their information secret? How much more remains to be discovered? How far and how deep can we go into the turbulent northern seas? And what's involved in getting the oil ashore?
BBC Scotland