Aker BP has started production from the viper-kobra field.
The firms said the project has been developed on time and within budget.
The viper-kobra is tied back to the ALvheim floating production, storage and offloading (FPSO) vessel.
The costs for the development are estimated to be NOK1.8billion.
Meanwhile, the estimated output of the two wells is planned to an average initial daily rate of 15,000 barrels of oil equivalent.
The distribution of ownership interests corresponds to that of the the Alvheim licence.
Aker BP has a 65% stake, ConocoPhillips 20% and Lundin Norway, 15%.