Smolneft

Sn-Gazdobycha

Sng Oil

Snk Nedra

Socar Rus

Sokol Oil

Sorovskneft

South Russian Oil Refinery

Southern Oil Gaz

Soyuz Terminal

Spalma Neft

Speedtrack Trading

Spetstransservice

Standard Oil Qazaqstan

Standart-Oil

Stankosfera

Stavropolneftegaz

Stimul-T

Smolnefteprom

Snegt

Snk

Socar

Sochi-Neft

Soltystik Energo

South Oil

Southern Gas Company

Soyuz

Soyuzneft

Spbgeoproekt

Spetsnefteservice

Standard Neft

Standart

Standart-Yug

Stavneft

Stepnoe

Stk-Petroleum