Waterous Energy Fund, a private equity firm, completed the acquisition of a 40% stake in Osum Oil Sands, an oil and natural gas exploration firm, for $136m. "The proposed transaction provides immediate liquidity and certainty of value to Osum shareholders after 15 years without any dividends or prospects of accessing the public markets. Osum shareholders should have confidence that fair market value for their shares has been established," Adam Waterous, WEF CEO.