With a cost of 7.4 billion NOK, an expected lifespan of 20 years, and a power production capacity comparable to Norway's 93rd largest hydropower plant, there is little indication that Hywind Tampen will ever pay for itself.

Gullfaks can be summed up in three words: large, expensive, and profitable.

Oil companies on the Norwegian Continental Shelf are not taxed based on what they actually sell their oil for, but rather on the Petroleum Price Board’s estimate of what the oil from each field could reasonably have sold for. These reference price estimates provide a useful indicator of the quality of Gullfaks crude.