The arrival of North Sea oil to Scotland in the 1970s allowed the Bank of Scotland to expand into the energy sector. The Bank later used this expertise in energy finance to expand internationally. The first international office opened in Houston, Texas, followed by more in the United States, Moscow and Singapore. In 1987, the Bank acquired Countrywide Bank of New Zealand (later sold to Lloyds TSB in 1998). The Bank later expanded into the Australian market by acquiring the Perth-based Bank of Western Australia.
