French oil supermajor, Total has agreed to purchase Tullow Oil’s full stake in jointly-held onshore oil fields in Uganda for $575 million. Tullow Oil yesterday informed that it is looking to raise $1 billion this year in a bid to diminish its $2.8 billion of debt. The deal is now subject to the two companies inking a final tax agreement with the Ugandan authorities and a go-ahead from Tullow’s shareholders.