On 27 January 2020, Rosneft announced that fully-owned subsidiary Orenburgneft discovered the Dolgovskoye Zapadnoye oil field in Orenburg (Volga-Urals), within the Buzulukskiy block. Recoverable reserves of the field are estimated at 7 MMt (51 MMbbl) of oil.  Rosneft was awarded exploration and production license ORB03180NR for the Buzulukskiy block in 2005. The company identified the Dolgovskaya Zapadnaya structure through an 1,800 sq km 3D seismic survey acquired in the area. Rosneft plans to drill two appraisal wells at the field, 25 development wells and to use the infrastructures of the Bobrivskoye and Dolgovskoye fields to develop the field.
Rosneft has reported an oil discovery at the Buzulukskiy block in Russia's Orenburg region. The company's regional subsidiary Orenburgneft has confirmed recoverable reserves of more than 51 MMbo at the West Dolgovskoye field following the completion of exploration drilling.