Norwegian oil and gas company StatoilHydro has discovered oil during the drilling of an exploration well and a sidetrack north of the Vigdis East field in the North Sea.

According to the company, the proven recoverable resources are estimated at about 25 million barrels of oil. The well confirmed the existence of a 280m oil column in rocks with good reservoir properties.

The exploration well was drilled into the Vigdis North-East prospect, located 3km south of the Snorre field. The purpose of the well was to confirm the existence of hydrocarbons in Lower Jurassic reservoir rocks belonging to the Statfjord group, said the oil company.

It said that the purpose of the well was to confirm the existence of hydrocarbons in Lower Jurassic reservoir rocks belonging to the Statfjord group and the purpose of the side-track was to get a better overview of the resource potential. The discovery will be developed towards the Tordis or Vigdis fields, said the company.

Tom Dreyer, StatoilHydro’s vice president of infrastructure-led exploration in North Sea, said: Our exploration activities close to fields on stream are successful and the discovery again confirms that there is still a great potential in this part of the North Sea.