Kulczyk Oil Ventures (WSE: KOV PW) started drilling its O-9 development well in the Olgovskoye field in Ukraine, the company reported yesterday. This is second well drilled in the Olgovskoye field since Kulczyk Oil acquired an effective 70% stake in KUB-Gas in June 2010 and is part of a larger development program for the KUB-Gas assets through 2011.