Shellneft

Shirvan Oil Refinery

Sibenta

Sibgazneft

Sibirneftekhim

Sibneftmehanizatsiya

Siboil

Sibserviz

Sibur Petrokon

Signal Oil

Sinooil

Sirius Oil and Gas

Sivysyakh Oil Refinery

Sk Oil Group

Sk-Refinery

Sks Oil

Sky Petroleum Cis

Slavyansk Eco

Shiny One Operating Company

Shymkent Oil Refinery

Siberian Oil and Gas Company

Sibinterneft

Sibneftalliance

Sibnhk

Siboilgas

Sibtek

Sigma Oil

Simbirsk Nefteprodukt

Sintez-Oil

Sirius-Industrial Technologies

Sk Nedra

Sk-Neft

Skandoil M

Sky Energy Capital

Slavneft

Smid I and V Commodotty BV