ORLEN builds 25-MMboe North Sea portfolio in Ekofisk Area
(WO) — ORLEN has expanded its upstream position on the Norwegian Continental Shelf through equity acquisitions in the Greater Ekofisk Area, adding roughly 8 MMboe to its resource base and advancing a sanctioned development project.
ORLEN Upstream Norway has finalized the purchase of a 7.6% interest in the Albuskjell and Vest Ekofisk fields from DNO, following an agreement signed in November 2025. The transaction closed in December 2025.
Both fields, along with Tommeliten Gamma, are being developed under the Previously Produced Fields (PPF) Project, which recently reached final investment decision. The three North Sea assets are expected to increase ORLEN Upstream Norway’s production by approximately 420 MMcm of gas annually once online.
“We are closing the year with excellent news from the Norwegian Continental Shelf. By acquiring shares in two fields, we are strengthening our position in the Greater Ekofisk Area - the birthplace of Norway’s oil industry. ORLEN’s own gas production from the Shelf, combined with production in Poland and LNG imports, forms the backbone of energy security for Poland and the wider region,” said Ireneusz Fąfara, President of the Management Board of ORLEN.
Earlier in 2025, ORLEN increased its stake in Tommeliten Gamma by acquiring a 20.23% interest from TotalEnergies EP Norge, raising its ownership in that field to 62.61%. The three fields will be jointly developed under the PPF framework.
The license partners approved development in December. The plan calls for drilling 11 production wells tied back to existing Ekofisk infrastructure. First gas is targeted for the fourth quarter of 2028.
“ORLEN’s combined reserves from Albuskjell, Vest Ekofisk, and Tommeliten Gamma total around 25 million barrels of oil equivalent, including more than 3 billion cubic meters of gas. Holding interests in all three fields gives us financial and operational synergies. This allows us to deliver on the objectives of the ORLEN 2035 Strategy in a cost-effective manner, maximizing the positive impact of Upstream business on the Group’s performance,” said Wiesław Prugar, Vice-President of the Management Board of ORLEN for Upstream.
The fields are operated by ConocoPhillips Skandinavia AS, with partners including Vår Energi ASA and Petoro AS in Albuskjell and Vest Ekofisk. At peak output, ORLEN expects production from the PPF project to reach 3.4 MMboe annually, including more than 400 MMcm of gas.
