Five companies previously owned by Rosneft have been taken over by Eduard Khudainatov's Independent Oil and Gas Company. These are Varyoganneftegaz and his subsidiary Severo-Varyoganskoye LLC, Nizhnevartovsk Oil and Gas Production Enterprise JSC, as well as Usinsk-Snabservis LLC and Sakhalin-Sklad LLC. The NPC did not comment on these changes. It is likely that the transactions took place as part of Rosneft's portfolio optimization, which includes replacing some of them with higher-quality assets and also filling the resource base of the new Vostok Oil project.