In September, Scotland will vote on whether to break away from the United Kingdom and declare independence.
So far, the debate has been largely about money: One poll says most voters would switch their vote if it meant an extra 500 pounds, or around $800 dollars.
North Sea oil and gas are central to this economic debate — nowhere more so than in the remote Shetland Islands, many miles from the Scottish mainland, where tankers carrying North Sea oil come ashore.