Exploration and production

Andijanpetro

China National Petroleum Company (CNPC)

Condor Petroleum

Epsilon

Expert Petroleum (XP)

Gazli Gas Storage

Gazlineftegazdobycha

Gazprom International

Gissarneftegaz

Japan Oil, Gas and Metals Corporation (JOGMEC)

Jarkurganneft

Kokand Oil and Gas Drilling Works

Kokdumalakgaz

Korea National Oil Corporation (KNOC)

Lukoil Uzbekistan Operating Company

Mubarekneftegazdobycha (Mubarekneftegaz)

Natural Gas Stream (NGS)

Neft va Gaz Kuduklarini Sinash

New Silk Road Oil and Gas

Petromaruz Overseas

Rosgeo Uzbekistan

Shurtanneftegazdobycha (Shurtanneftegaz)

Surhan Gas Chemical Operating Company

Tatneft

Uranredmetgeologiya

Urgenchgazmash

Ustyurt Exploration Drilling Directorate

Ustyurtneftegazdobycha

Uzbekkhimmash (Uzbekkimyomash)

Uzburguneftgaz

Uzneftegasmash

Uzneftegazdobycha

Uznefteproduct

Uzneftgazkuduktamirlash

UzRosneftegazgeo

Vodiyneftegazdobycha (former Andijanneft)