OKEA announced on 13 November 2019 that it has transferred a further 20% interest in PL 038 D and an 18.57% interest in PL 974 to Chrysaor. The deal has been approved by the Ministry of Petroleum and Energy and is expected to be finalised by the end of 2019. The two licences contain the Grevling and Storskrymten discoveries for which OKEA is aiming to submit a PDO in 2020, with first oil possible in 2021. Chrysaor gained its initial 15% interest in PL 038 D in November 2018 (this was the company's first NCS licence).  OKEA had been considering four options for the development of Grevling in PL 038 D (a standalone development using either an FPSO or a jack-up platform with Mobile Offshore Production Unit (MOPU), or a tie-back development using either subsea wells or an unmanned wellhead platform) and made its choice in May 2019 to proceed with the MOPU option. It intends to use four horizontal producers and two water-alternating gas injectors, with some element of artificial lift. Expected life is 10 years, with plateau production likely to be 20,000 boe/d. Storskrymten (PL 974) will be developed as part of the Grevling project, most likely by a well drilled from Grevling.   Grevling was discovered by Talisman in 2009 by 15/12-21 which encountered 67 m of net pay in the Middle Jurassic Hugin and Sleipner formations and the Upper Triassic Skagerrak Formation. Two DSTs were performed, flowing at a rate of 780 bo/d from the Sleipner and Skagerrak formations and 472 bo/d from the Hugin Formation (through a 20/64" choke). The OWC was not penetrated so a sidetrack (15/12-21 A) was drilled in a down-dip location to the east. This well confirmed oil in the same formations with a total of 36 m of net pay but the OWC was still not found. Appraisal well 15/12-23 was drilled in 2010 and found the OWC (or an ODT) at 3,251 m. The Hugin Formation was absent and the reservoir comprised just the Sleipner and Skagerrak formations which tested at a rate of 648 bo/d through a 16/64" choke. Sidetrack 15/12-23 A deviated to the west and found water-wet Hugin sands (with oil shows) and oil-bearing Sleipner sands (it TDâd in the Sleipner). Recoverable reserves are estimated at 43 MMboe.  Storskrymten was discovered by Det norske in 2007 with well 15/12-18 S. A 23 m oil column was proven in the Paleocene Ty Formation and a sidetrack was drilled to delineate the discovery but the Ty Formation came in low to prognosis and was below the OWC. However, the overlying Heimdal Formation was oil-bearing. Det norske estimated reserves at 10-45 MMbo at the time of discovery but in late 2008 the company reported that Storskrymten did not have any commercial potential as an independent discovery and the licence was relinquished in 2013. A new licence was awarded in March 2019 and OKEA now believes that it can produce 16 MMboe.  Following completion of the deal, interest in PL 038 D is divided between OKEA ASA (35% + operator), Chrysaor Norge AS (35%) and Petoro AS (30%) and interest in PL 974 is held by OKEA ASA (60% + operator) and Chrysaor Norge AS (40%).
Chrysaor acquired 18,57% stake in PL 974 (Storskrymten) from OKEA.