Oil & Gas Bidder found for Sovereign operationsHopes are rising for the future prospects of the 400 people who work for troubled Aberdeen-based Sovereign Oilfield Group. March 9th 2010, 2:59 am 2 min read Facebook An icon of a facebook f logo. LinkedIn An icon of the LinkedIn logo. Twitter An icon of the Twitter logo. Hopes are rising for the future prospects of the 400 people who work for troubled Aberdeen-based Sovereign Oilfield Group.