MAX STREICHER GmbH & Co.

Germany

China Petroleum Technology & Development Corporation

China

Rukun Al Yaqeen (RAY) International Oil and Gas, Oman

Oman

Belorusneft

Belarus

Geopetsa Servicios Petroleros 

Ecuador

Ural Company Technical Service 

Russia

Goenka Engineering & Industrial 

India

Sales & Services International

Pakistan

Gazprom

Russia

UkrGasVydobuvannya

Ukraine