Abites

Ace Global

Ada Oil Trading

Adm-Resurs

Advanta

Agro-Gas

Agrosnaboil

Akbit

Akmay

Al Dhakhira Petroleum

Alaugaz-Sk

Alfa Alliance

Alfa-Oil

Aliansprom

Allbitech

Alliance Consulting

Alliance Petroleum

Allied Chem Group

Abstergo Vostok

Active-D

Adashneft

Adon Gaz

Agl Nafta

Agroselkhozservis

Ags-Oil

Akhmad Kadyrov Oil Trading Incorporation

Akspetro

Al Oilservice

Aleksey Holdings

Alfa Service

Alfa-Petrospekt

Alimov Petroleum

Alliance

Alliance Oil Company

Alliance Yug

Almmet-Nn Oil