Joint ventures operated by Gassco

Gassco is operator for several joint ventures with varying ownership.

Gassled was on established January 1, 2003, when most of the Norwegian gas transport systems in place at the time were combined in a large new joint venture. Gassled comprises the onshore facilities at Kårstø and Kollsnes, along with a network of pipelines that connect these facilities to producing fields in the North Sea and parts of the Norwegian Sea. Additionally, the network facilitates transportation to both the United Kingdom and the continent. 

Haltenpipe became operational in 1996. It connects the Heidrun field in the Norwegian Sea with the Tjedbergodden facilities, where gas is used to produce methanol and other products. 

Valemon Rich Gas Pipeline started in 2015 and connected the Valemon field and the Heimdal platform where the gas was processed. In 2023, the Valemon rich gas pipeline was closed and the gas from the Valemon field is now transported to Kollsnes in Gassled.

Utsira High Gas Pipeline became operational in 2015. It connects the Edvard Grieg and Ivar Aasen fields in the North Sea with the SAGE transport system on the British side of the North Sea. Other fields are planning to connect to this system as well. 

Nyhamna gas processing plant became operational in 2007. Originally, the facility was built to process gas from the Ormen Lange field. In 2017, the plant underwent an expansion to also accommodate gas reception from the Norwegian Sea through the Polarled pipeline. Consequently, on October 1, 2017, Nyhamna was established as a separate joint venture. 

Polarled became operational in 2018. It connects fields such as Aasta Hansteen and other future fields in the Norwegian Sea to Nyhamna.

Vestprosess became operational in 1995. It is a processing plant for gas from Kollsnes and Sture. 

The various transportation joint ventures do not have their own employees. Instead, they are operated by Gassco employees and technical service providers. Ownership control is maintained through dedicated management committees and various committees assigned with specific responsibilities. 

Petoro AS (SDØE)*46.697%
Hav Energy NCS Gas AS15.553%
Silex Gas Norway AS6.428%
Equinor Energy AS5.000%
Petoro AS (SDØE)*57.813%
Equinor Energy AS19.063%
ConocoPhillips Skandinavia AS18.125%
Vår Energi AS5.000%
Valemon Rich gas Pipeline
Equinor Energy AS66.775%
Petoro AS (SDØE)*30.000%
PGNiG Ustream Norway AS3.225%
Utsira High Gas Pipeline
ABP Norway AS47,703%
Equinor Energy A/S24.884%
Wintershall Dea Norge AS9.877%
OMV (Norge) AS8.332%
Sval Energy AS7.390%
M Vest Energy AS1.814%
Equinor Energy AS30.056.%
Petoro AS (SDØE)*26.138%
CapeOmega AS18.209%
North Sea Infrastructure AS13.700%
PGNiG Ustream Norway AS8.188%
A/S Norske Shell2.027%
ConocoPhillips Skandinavia AS1.681%
Equinor Energy AS37.076%
CapeOmega AS28.271%
Hav Energy NCS Gas AS13.255%
Petoro AS (SDØE)*11.946%
M Vest Energy AS5.000%
ConocoPhillips Skandinavia AS4.452%
Vestprosess DA
Petoro AS (SDØE)*41.000%
Equinor Energy AS34.000%
North Sea Infrastructure AS23.000%
ConocoPhillips Skandinavia AS2.000%