Ekofisk is the oldest field complex in operation on the Norwegian continental shelf. The operator is ConocoPhillips.
 
It consists of the fields Ekofisk, Eldfisk and Embla (StatoilHydro's interest 7.604%) plus Tor (StatoilHydro's interest 6.639%). 
Ekofisk has been upgraded with several new platforms over the years, the latest was 2/4-M installed in 2005. 
Several new projects are being studied: a new Ekofisk Hotel and fields centre, a new Ekofisk South drilling platform and redevelopment of Eldfisk. Final decisions are expected to be taken during the next few years. 
These new platforms are expected to extend the field life beyond the current licence period, which ends in 2028. 
Ekofisk  is tied to Teesside in the UK and Emden in Germany by the Norpipe pipelines for oil and gas respectively.
		This infrastructure for oil and gas transport is also used for surrounding fields.