Canada’s Talisman Energy farmed into Block 4B-10 in mid- 2011, taking 80%. The seller was the British Virgin Islands UK-registered Prontinal, which with its predecessor company #8 Investments Inc had owned the block since the 2002 licensing round. Sierra Leonean petroleum unit sources last spring said that Talisman, which does not have a large Africa footprint following the 2003 sale of its Sudan interests, had bought into the block,but the company declined to confirm this at the time. In 2009,Simco Petroleum Management opened a data room for Prontinal which was attended by some 30 companies.