State-run Oil and Natural Gas Corp. Ltd (ONGC) has signed definitive agreements with Russia’s national oil company Rosneft PJSC to acquire an additional 11% stake in its unit, JSC Vankorneft, which has a licence to produce hydrocarbons from the Vankor field in Siberia.

• The definitive agreement was signed in Moscow  by Narendra K. Verma, chief executive officer and managing director of ONGC’s overseas arm ONGV Videsh Ltd, and Igor Sechin, chairman of Rosneft’s board of directors.

• The latest deal, first announced on 16 March, is expected to receive approvals from the boards of the companies as well as the Indian and Russian governments by the end of 2016, ONGC said.

• ONGC did not disclose the price at which the additional stake is being acquired, but a person with knowledge of the transaction said on condition of anonymity that the purchase would cost around $924 million.

• Once the transaction is completed, ONGC Videsh Vankorneft Pte Ltd, a unit of the oil explorer, will hold a 26% stake in Vankorneft, including the 15% stake it had acquired earlier for $1.26 billion. That deal was concluded in May this year.

• “Vankor is Rosneft’s (and Russia’s) second largest field by production and accounts for 4% of Russia’s production. The daily production from the field is around 421,000 barrels per day (bpd) of crude oil on an average and together with the earlier acquisition of 15%, ONGC Videsh’s share of daily oil production from Vankor will be about 110,000 bpd.