Tullow Oil (OTCPK:TUWLF) slides more than 5% in London trading after saying it expects to post...

Tullow Oil (OTCPK:TUWLF) slides more than 5% in London trading after saying it expects to post ~$2.35B in revenue for 2012 and that unsuccessful explorations write-offs rose to $299M from $121M in 2011. Exploration and appraisal campaigns for 2013 will target 1B boe, with more than 40 wells planned.