Cameroon is on target to double crude production to 100,000 b/d in 2012; Block 5 operator SOCO International has announced its proposed work plan for exploration on Block 5; Premier Oil has announced 2011 results for its Mauritania operation; Afren said that, following three drill stem tests, the offshore Okoro East discovery announced in January had yielded high-quality 38º-40ºAPI crude in excellent reservoir sands