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| Dobson, 58, the Scottish mining entrepreneur, is one of the investors behind proposals to build a £1.5 billion oil refinery in Newfoundland. He has other investments, including a stake in a company looking for oil near the Falkland Islands, and made a reported £30m profit when he sold his shares in Manchester United football club to Malcolm Glazer last year.With his homes thrown in, we value him at £550m. | ||||||||||||||||
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