BP sells North Sea gasfield to SSE in $288m deal The Sean gasfield in the southern North Sea is operated by rival Shell. BP wants to sell $38bn worth of assets by the end of 2013 to pay for cleaning up and for compensation following the Deepwater Horizon rig explosion which killed 11 workers and led to the biggest offshore oil spill in US history. In the last two weeks the British oil company has also completed the sale of its non-operating stakes in the Alba and Britannia fields to Mitsui and the Draugen field in Norway to Shell. The deals that were announced earlier this year. BP expects the SSE deal to be completed in the first half of 2013. Net production for BP from the Sea gasfield is around 18,000 barrels of oil equivalent a day.