• Energy North Sea Ltd. plans to buy 41% interests in the producing Montrose, Arbroath and Arkwright fields, a 10% interest in the Foinaven East Field and 2.5% interest in the Magnus area fields, in the North Sea and Atlantic Margin, from Shell U.K. Ltd., a subsidiary of Shell Transport & Trading Co. Plc, London. In a separate transaction, Shell plans to sell its interests in producing fields Alba (2.25%), Caledonia (2.83%) and Orion (6.25%), along with acreage (blocks 15/19a, 15/28a, 15/28b, 16/18a, 16/23N, 16/26 and 30/18W), in the North Sea and Atlantic Margin, to Talisman North Sea Ltd. • Norsk Agip has acquired a 7.9% holding in the Tyrihans Field on the Halten Bank in the Norwegian Sea from Statoil, according to Dow Jones. In addition to serving as operator for PLs 073 and 091, the group originally had stakes of roughly 55% in both production licenses. • Canoro Resources Inc., Calgary, has acquired an additional 25% interest in the producing Amguri development oil and gas field in Assam, India, from Joshi Technologies International Inc. The field produces approximately 1 million cu. ft. of gas and 250,000 bbl. of oil per day. • CNOOC Ltd., Beijing, has increased its interest in the Qinhuangdao and Liuhua fields offshore China for US$190 million. BP China Exploration and Production Co. has transferred its 24.5% interests in both QHD 32-6 and LH 11-1 and Kerr-McGee China Petroleum Ltd. plans to transfer the remaining 24.5% foreign interest in LH 11-1 to CNOOC. • Petronas Carigali Overseas has acquired a 40.375% interest in Block 5A, Sudan, from Lundin Petroleum AB for US$142.5 million. Block 5A is in the Muglad Basin in southern Sudan and contains the undeveloped Thar Jath Field, which contains proved and probable oil reserves of 149.1 million bbl. -Rachel Otto