Lukoil-Nizhegorodnefteorgsintez

Lukoil-Nizhegorodnefteorgsintez (informally known as NORSI) is a wholly-owned subsidiary of Lukoil, Russia's largest privately-held oil company, and the operating entity for the Kstovo refinery in Nizhny Novgorod Oblast. The company runs one of Russia's highest-conversion refineries, capable of processing approximately 17-18 million tonnes of crude oil annually into a range of petroleum products including motor fuels, jet fuel, lubricants, and petrochemical feedstocks. By May 2026, Ukrainian drone strikes had disrupted operations at Kstovo as part of a wider campaign that Reuters reported had halted or reduced output at nearly all major central Russian refineries.

The entity was founded in its current form following the post-Soviet restructuring of the Gorky Oil Refinery, one of the Soviet Union's largest petroleum processing complexes. Lukoil acquired controlling interest during the privatisation wave of the 1990s. The Kstovo complex sits on the Oka River south of Nizhny Novgorod and benefits from both Volga barge logistics and pipeline connections to Western Siberian crude supply via the Druzhba system.

Sanctions imposed on Lukoil and its subsidiaries since 2022 have complicated crude procurement and product export routes for NORSI, while the physical strike damage from Ukraine's drone campaign compounds financial stress. The subsidiary is a material contributor to Lukoil's Russian downstream earnings and its operational disruption has knock-on effects on regional fuel supply.