Slavneft Oil & Gas Company agreed to acquire an additional approximately 0.05% stake in Slavneft-Yaroslavnefteorgsintez OJSC (MICEX: JNOS) from Slavneft'-Iaroslavnefteprodukt OAO on October 10, 2011. Under the terms, Slavneft Oil & Gas Company is also acquiring 0.28% of preferred shares in Slavneft-Yaroslavnefteorgsintez OJSC. The transaction was approved by the Board of Directors of Slavneft-Yaroslavlnefteprodukt.

Slavneft Oil & Gas Company cancelled the acquisition of an additional approximately 0.05% stake in Slavneft-Yaroslavnefteorgsintez OJSC (MICEX: JNOS) from Slavneft'-Iaroslavnefteprodukt OAO on October 10, 2012.