INTSOK was founded in 1997 by 3 ministries, 3 oil companies and 3 organisations. From 1st January 2017, Norwegian Energy Partners have gotten 2 new organisations and 1 new energy company as founders.
Founders from 1st January 2017:
- Ministry of Foreign Affairs
- Ministry of Petroleum and Energy
- Ministry of Trade and Industry
- Equinor (previousely Statoil)*
* Saga Petroleum and Norsk Hydro were original co-founders. Now both a part of Equinor.
- Energy Norway
- Federation of Norwegian Industries
- Norwegian Oil and Gas Association
- Norwegian Shipowners’ Association
- The Norwegian Confederation of Trade Unions (LO)