The way that the N. Sea industry is going at the moment, and the agism related to redundacy you will be lucky to see 55 in the employ of the current operators, let alone 58!
Bond recently upped their retirement age from 55!
The wages and the shortened earning period do not make the pension that attractive unless you have been in the system for more than 25 years. The way things are panning out very few people will be able to achieve that.
Bummer!