Allianznefteprodukt

Alpha

Als Tools-Plus

Altay-Petroleum

Alyansneftegaz

Amalgama

Amanat Oil Kazakhstan

American Resource Company

Amon-Service

Anaco Oil and Gas

Angaraneft

Angarsk Petrochemical Company

Ank Odesneft

Ansad Petrol Oil and Gas

Aral Oil Terminal

Arbat Fuel and Energy Company

Arenda Servis

Argos Oil Refinery

Aloil

Alrus Chemicals

Altair Oil

Altius Petroleum International BV

Alza-Neft

Amanat Oil

Amanat Petrol

Amgk

Amur-Neftekhim

Andrey Oil and Gas

Angaraneftegaz

Angerskaya Oil and Gas Company

Anp

Antipinsky Oil Refinery

Aral Petroleum Capital

Ardonneftekom

Argo Translop

Argotehnoresurs