Norway’s oil and gas watchdog has approved Aker BP’s plans to modify facilities at the Tambar oil field to support North Sea oil production.

The approved modification includes installation of a gas lift module to inject natural gas into wells to help to produce oil from the reservoir.

“The gas lift is being installed because the reservoir pressure at Tambar is no longer sufficient to ensure satisfactory production,” Norway’s Petroleum safety authority said in a statement Oct. 12.

In March, the Tambar license partners agreed to invest about 1.7 billion Norwegian crowns (US $215 million) to extend the field's lifetime by 10 years until 2028.

Aker BP also plans to drill two new production wells in fourth-quarter 2017 with startup expected in first-half 2018.

Aker BP and its partner in the license, Faroe Petroleum , expect the modification to add between 4,000 and 6,000 new barrels a day over several years, the company said previously.

The Tambar Field, which started production in 2001, uses an unmanned wellhead platform remotely controlled from the nearby Ula oil field.