BP boss: Uncertainties due to Scotland independence
4 February 2014 Last updated at 13:25 GMT
BP boss Bob Dudley has warned there are "big uncertainties" for the company over the possibility of Scotland becoming independent.
Mr Dudley told the BBC's Hugh Pym the "question mark" over which currency Scotland might adopt if there was a 'yes' vote in September's referendum was "a concern".
"My personal view is that Great Britain is great and it ought to stay together," he continued.