References

References

  1. The Norwegian Offshore Directorate (2026): Resource accounts as of 31.12.2025. Download: https://www.sodir.no/aktuelt/publikasjoner/rapporter/ressursregnskap/ressursregnskapet-2025/
  2. Menon Economics, Statistics Norway (2025): Sysselsettings-, verdiskapings- og skatteeffekter av petroleumsvirksomheten i norsk økonomi. Menon publikasjoner 8/2025. Last ned: https://menon.no/uploads/images/2025-8-Sysselsettings-verdiskapings-og-skatteeffekter-av-petroleumsvirksomheten-i-norsk-%C3%B8konomi.pdf
  3. Norwegianpetroleum.no (2026): Government revenues. Download: https://www.norskpetroleum.no/okonomi/statens-inntekter/
  4. The Norwegian Offshore Directorate (2025): Resource accounts as of 31.12.2025, Undiscovered Resources. Download: https://www.sodir.no/en/whats-new/publications/reports/resource-accounts/resource-accounts-2025/undiscovered-resources/
  5. Copenhagen Institute of Future Studies (2026): Technology megatrends for O&G towards 2050. Contact: Martin Kruse - Director of Sustainability and Resources & Futurist at CIFS; mkr@cifs.dk
  6. Ministry of Finance (2021): Rundskriv R-109/2021 - Prinsipper og krav ved utarbeidelse av samfunnsøkonomiske analyser. Download: https://www.regjeringen.no/globalassets/upload/fin/vedlegg/okstyring/rundskriv/faste/r_109_2021.pdf
  7. Pereira Nunes, J. P., G. S. Seabra, L. C. de Sousa (2024): A review of CO2-injection projects in the Brazilian Pre-Salt - Storage capacity and geomechanical constraints. International Journal of Greenhouse Gas Control, Volume 137,104232. Download: https://doi.org/10.1016/j.ijggc.2024.104232
  8. Ebuka, D., S. R. McDougall, E. J. Mackay (2025): Impact of relative timing of low salinity and polymer flooding on mechanisms by which oil recovery is improved. Scientific Reports, Volume 15, 27170. Download: https://doi.org/10.1038/s41598-025-12863-1
  9. Piñerez Torrijos, I. D., T. Puntervold, S. Strand, T. Austad, T. H. Bleivik, H. I. Abdullah (2018): An experimental study of the low salinity Smart Water - Polymer hybrid EOR effect in sandstone material. Journal of Petroleum Science and Engineering, Volume 164, pages 219-229. Download: https://doi.org/10.1016/j.petrol.2018.01.031
  10. Ministry of Petroleum and Energy (2010): Økt utvinning på norsk kontinentalsokkel - En rapport fra utvinningsutvalget. Download: https://www.regjeringen.no/globalassets/upload/oed/pdf_filer/oktutvinning.pdf
  11. The Office of the Auditor General (2015): Riksrevisjonens undersøkelse av myndighetenes arbeid for økt oljeutvinning fra modne områder på norsk kontinentalsokkel. Dokument 3:6 (2014–2015). Download: https://www.riksrevisjonen.no/globalassets/rapporter/no-2014-2015/oljeutvinningkontinentalsokkel.pdf
  12. Ministry of Energy (1996): Lov om petroleumsvirksomhet (petroleumsloven), § 4-1. Forsvarlig utvinning. Download: https://lovdata.no/dokument/NL/lov/1996-11-29-72/KAPITTEL_4#%C2%A74-8
  13. The Norwegian Offshore Directorate (2026): The Norwegian Offshore Directorate's technology strategy. Download: https://www.sodir.no/en/facts/technology/
  14. Osmundsen, P. & A. Wittemann, A. (2024): Petroleum development projects. Concept selection, taxation and recovery rate. Resources Policy, Vol. 95, August 2024. Download: https://www.sciencedirect.com/science/article/abs/pii/S0301420724005385
  15.  Ministry of Energy (1996): Lov om petroleumsvirksomhet (petroleumsloven) – Kapittel 4. Utvinning m.v. av petroleum. Download: https://lovdata.no/dokument/NL/lov/1996-11-29-72/KAPITTEL_4#KAPITTEL_4
  16. Offshore Norge (2026): Marginale funn på norsk sokkel – status, barrierer og mulighetsrom. Download: https://www.offshorenorge.no/contentassets/493648b1b9744ae79cafd3385390817e/offshore-norge-2026---marginale-funn-pa-norsk-sokkel---rapport.pdf
  17. Willigers, B.J.A., K. Prendergast, Z. Muslumov (2010): North Sea Dominos: The Economic Dependencies of Infrastructure Assets and Their User-fields. SPE Hydrocarbon Economics and Evaluation Symposium. Paper number, SPE-130156-MS. Download: https://doi.org/10.2118/130156-MS
  18. The Norwegian Offshore Directorate: Oil discoveries in the Yggdrasil area (25/114, 25/114 A, B, C, D, E, F and G). Download: https://www.sodir.no/en/whats-new/news/exploration-drilling-results/2025/oil-discovery-in-the-yggdrasil-area-251-14-251-14-a-b-c-d-e-f-and-g/
  19. The Norwegian Offshore Directorate (2025): Gas/condensate discovery in the North Sea (15/5-8 S and A). Download: https://www.sodir.no/en/whats-new/news/exploration-drilling-results/2025/gascondensate-discovery-in-the-north-sea-155-8-s-and-a/
  20. IEA (2025): The Implications of Oil and Gas Field Decline Rates. Download: https://iea.blob.core.windows.net/assets/9ea2076e-5a0d-4a0d-9767-a1eec20aff23/TheImplicationsofOilandGasFieldDeclineRates.pdf
  21. Gea, F. (2026): "Five years ago nobody was talking about the replacement, right? It was forgotten. But we need to start thinking about how we are going to replace the current production in the coming years". Statement during CERAWeek, Houston, March 2026 (Repsol).
  22. Stern, A. (2026): "Everybody is refocusing to try and do more exploration again. There's always a balance then in organic exploration and inorganic and the difference is really the timing, how long it takes to get to production there...". Statement in interview with Reuters, March 27, 2026 (OMV).
  23. The Norwegian Offshore Directorate (2026): About Diskos. Download: https://www.sodir.no/en/about-us/organisation/collaboration-projects/diskos/
  24. The Norwegian Offshore Directorate (2026): The shelf in 2025, chapter 4 - Data management, digitalisation and cooperation. Download: https://www.sodir.no/en/whats-new/publications/reports/the-shelf/the-shelf-in-2025/data-management-digitalisation-and-cooperation/
  25. The Norwegian Petroleum Directorate (2015): Diskos 20 år – i oljegeologiens tjeneste. Diskos jubileumshefte, spesialtrykk. Download: https://www.sodir.no/globalassets/3-diskos/documents/diskos_jubileumshefte_liten.pdf#:~:text=Diskos%2Dveteran%20Kjell%20Reidar%20Knudsen "Mye av hemmeligheten bak nye funn i modne områder, ligger i å kaste seg over gamle data med ny entusiasme og sette informasjonen inn i en oppdatert kontekst, sier Hans Chr. Rønnevik, letesjef i Lundin Norway. Og forklarer hvorledes Diskos bidro til funnet av Johan Sverdrup."
  26. Ordonez A., T. J. Line Forgaard, D.Wade, A. Juell Bugge, H. Nese, A.Ueland Waldeland (2026): The NCS-Model: A seismic foundation model trained on the Norwegian repository of public data. Cornell University, arXivLabs; arXiv:2603.23211. Download: https://arxiv.org/pdf/2603.23211
  27. FORCE was established in 1995 and is a collaborative forum for sustainable recovery, improved exploration as well as energy efficiency and the environment, where oil and gas companies and authorities in Norway collaborate. Download: https://www.sodir.no/en/force/
  28. Serov, P., R. Mattingsdal, M. Winsborrow, H. Patton, K. Andreassen (2023): Widespread natural methane and oil leakage from sub-marine Arctic reservoirs. Nature Communications 14, 1782. Download: https://doi.org/10.1038/s41467-023-37514-9
  29. Panieri, G., C. Argentino, S. P. Ramalho, F. Vulcano, A. Savini, L. Fallati, T. Brekke, G. Galimberti, F. Riva, J. Balsa, M. H. Eilertsen, R. Stokke, I. H. Steen, D. Sahy, D. Kalenitchenko, S. Büenz, R. Mattingsdal (2024): An Arctic natural oil seep investigated from space to the seafloor. Science of The Total Environment,Volume 907,167788. Download: https://doi.org/10.1016/j.scitotenv.2023.167788
  30. Kilhams, B., L. Chedburn, L. Layfield, N. Schofield, I. Løkling Lunde, L. Kennan, H. Romain, D. Jolley, C. Haug Eide (2022): Challenges and opportunities for hydrocarbon exploration within the Mesozoic sub-basalt plays of the Norwegian Atlantic Margin. Petroleum Geoscience (2022) 28 (4), petgeo2022-022. Download: https://doi.org/10.1144/petgeo2022-022
  31. The Norwegian Petroleum Directorate (2020): Resource report 2020 Exploration, chapter 3 – Undiscovered resources. Download: https://www.sodir.no/en/whats-new/publications/reports/resource-report/resource-report-2020/3--Undiscovered-resources/?language=en
  32. Rumsfeld, D. H. (2002): U.S. Department of Defense, DoD News Briefing, Transcript. Download: https://usinfo.org/wf-archive/2002/020212/epf202.html Quote D. H. Rumsfeld: “Reports that say that something hasn't happened are always interesting to me, because as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don't know we don't know.”
  33. Žižek, S. (2006): Philosophy, the "unknown knowns", and the public use of reason. Topoi 25, 137–142. Download: https://doi.org/10.1007/s11245-006-0021-2
  34. Gassco (2023): Vurdering av gasstransportalternativer fra Barentshavet sør. Download: https://www.regjeringen.no/contentassets/39fd87433a4f4c6ba92d1da8d8d4e95d/barentshavet-vurderinger-og-observasjoner-2023.pdf
  35. Gassco (2026): Annual report 2025, page 20. Download: https://gassco.eu/wp-content/uploads/2026/06/EN-Annual-Report-2026.pdf
  36. Hoel, M. (2022): Historisk lønnsomhet i petroleumssektoren. Rapport 2022/45, Vista Analyse. Download: https://www.vista-analyse.no/en/publications/historisk-lonnsomhet-i-petroleumssektoren/
  37. Rønnevik, H. C., A. Jørstad, J. E. Lie (2017): The discovery process behind the giant Johan Sverdrup field. R. K. Merrill and C. A. Sternbach, eds., Giant Fields of the Decade 2000–2010: AAPG Memoir 113, p. 195–220. Download: https://www.researchgate.net/publication/345040211_The_Discovery_Process_behind_the_Giant_Johan_Sverdrup_Field

All analyses, facts, and conclusions presented in this report have been prepared by the Norwegian Offshore Directorate. Artificial intelligence (AI) has been used to a limited extent for language processing and refinement. In accordance with our guidelines, the content has been verified against the cited sources. The text has undergone both technical and linguistic quality assurance and has been adapted to current regulations and practices.

Updated: 9/8/2026