ENQUEST has raised £45 million to cut debt by selling its new North Sea headquarters in Aberdeen office in a sale and lease back deal. The company has sold the building to Rockspring Hanover (Aberdeen) Property Unit Trust, which has granted it a 20 year lease over the office space it contains. Enquest said the net proceeds of the deal will be £12.6m after Rockspring has assumed existing debt and other balances in relation to the building totalling £32.5 million.