Kårstø processes rich gas and condensate, or light oil, from the NCS received via the Statfjord-Kårstø pipeline, the Åsgard-Kårstø pipeline and the Sleipner condensate pipeline.

The processing plant currently has a rich gas capacity of 88 mmcm per day. Products produced at Kårstø include ethane, propane, iso-butane, normal butane and naphtha and stabilised condensate. When all these elements have been separated from the gas, the remaining gas (dry gas) is sent to customers via the Statpipe, Europipe II and Rogass pipelines. The processing plant has currently a dry gas export capacity of 78 mmcm per day.

In order to meet technical requirements and future needs, the Kårstø processing plant will undergo comprehensive upgrading over the next few years. KEP2010 is the project name for several projects intended to make the Kårstø facilities more robust for safe and efficient operation.

The project's framework investment is estimated at around NOK 6.5 billion. The first project was completed successfully in 2008.

Plans call for the completion of the remaining KEP2010 projects between 2010 and 2012. Groundwork started late 2008. The KEP2010 workforce working on site will comprise around 500 personnel at any given time. In 2008, Kårstø produced 24.6 bcm of dry gas, 0.8 million tonnes of ethane, 3.2 million tonnes of LPG and 2.2 million tonnes of condensate/naphtha exported to customers worldwide.