Carnegie acted as sole book-runner in the secondary placing of 20 million shares in EMGS at a subscription price at NOK 14.20 per share. The seller was Warburg Pincus. EMGS uses seabed-logging, a patented electromagnetic survey method, to find hydrocarbons in offshore reservoirs. The company was founded in 2002 and is the global market leader within EM. EM is a complementary tool to traditional seismic data. January, 2012.