Trans Magistral Neft

Trans Oil Company

Transitgaz

Transneft-Service

Transoil Oil and Gas

Transtek

Trevi Limited

Triolneft

Trust Neftegaz

Tt-Ek

Tunaksky Refinery

Turkmenbashi Oil Processing Complex

Turkmenoy Oil Field

Tuymaadaneftegaz

Tyulganneftegaz

Tzrim

Ultima

Ulugurneftegaz

Trans Nafta

Transenergo Elite Holding

Transkodoil

Transneftegaz

Transspetsservice

Traybshtof

Triada

Tristar Energy Logistics

Ts Oil Refinery

Tulymneft

Turaneft

Turkmengaz

Tuymaada-Neft

Tvernefteprodukt

Tyumenneftegaz

Ulakhansky

Ultimagaz

Ulytausky Oil Refinery