Third phase development buy-in by Italian energy giant follows earlier rounds on major North Sea project. : Third phase development buy-in by Italian energy giant follows earlier rounds on major North Sea project SSE and Equinor have agreed to sell 10 per cent stakes in a Dogger Bank offshore wind farm development to Eni in a £140 million deal. The Italian energy giant, one of the global oil majors, is greening up its portfolio in the move, having already bought stakes in earlier projects.