Equinor and Shell were planning on building a gas-fired powerplant in Norway that would infuse CO2 underground or beneath the seabed, but they discarded the plan due to economic reasons. Equinor has injected CO2 into the Utsira formation on the Sleipner gas field for environmental storage purposes since 1996. Natural gas containing approximately 8.5% CO2 is produced on the Sleipner Vest field. The gas is transported to the Sleipner Treatment platform, where the CO2 is removed. The gas is exported to the UK, Germany, and Belgium, and the CO2 is injected into the Utsira formation.