Rosneft acquired 50% in the joint venture Ruhr Oel GmbH (ROG) with BP Europa SE in Germany in May 2011. ROG holds equity interests in four Germany-based refineries (Gelsenkirchen – 100%; Bayernoil – 25%; MiRO – 24%; and PCK Raffinerie GmbH – 37.5%). Furthermore, the joint venture has equity interests in five supply pipelines and marine terminals on the Northern, Baltic, Mediterranean and Adriatic Seas.