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Norwegian independent oil and gas operator with core production and exploration interests in Iraqi Kurdistan and the North Sea.

Last updated August 31, 2026

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Overview

DNO ASA is a Norwegian independent oil and gas company founded in 1971 and headquartered in Oslo. Listed on the Oslo Stock Exchange, it describes itself as Norway’s oldest oil company and was the first Norwegian oil company to list on the exchange, in 1981. Its activities span exploration, field development and production, with an asset portfolio concentrated in Iraqi Kurdistan and the Norwegian and United Kingdom sectors of the North Sea, alongside interests in Yemen, the Netherlands and an indirect interest in Côte d’Ivoire. The company’s strategic identity has changed over time. DNO initially built its business around the North Sea, but during the last two decades its center of gravity moved toward the Middle East. It entered Yemen in 1998, marking its first Middle Eastern operation, and entered the Kurdistan region of Iraq in 2004. At that time, the region had very little established international oil production activity. DNO’s early move into Kurdistan became the defining development in its modern history and established the company as one of the region’s principal international operators. DNO began production from the Tawke field in 2007, only two years after exploration began. Tawke became the company’s flagship asset and a major source of its production and reserves. The neighboring Peshkabir field was brought on stream in 2018, further strengthening DNO’s position in the Kurdistan region. The company has described the combined Tawke and Peshkabir accumulation as holding more than 500 million barrels of proven and probable reserves. DNO also reported production from the two fields of more than 110,000 barrels of oil per day in 2017, although production levels and reserves are time-sensitive and should not be treated as current without reference to a later company report. DNO returned to the Norwegian Continental Shelf in 2017 through the acquisition of Origo Exploration. Its Norwegian portfolio subsequently expanded across the North Sea, Norwegian Sea and Barents Sea. The company also entered or expanded its presence in the United Kingdom Continental Shelf through the same transaction and maintains interests at different stages of exploration, development and production. Its portfolio therefore combines mature producing assets with exploration licenses and development opportunities rather than relying on a single type of petroleum activity. In April 2024, DNO and partners including OKEA advanced development planning for the Brasse field in the North Sea. The field was expected to be renamed Bestla and was planned as a tie-back to the nearby Brage platform, with production targeted for the first half of 2027. Published project estimates placed recoverable reserves at approximately 24 million barrels and indicated that the development could contribute up to 10,000 barrels of oil equivalent per day net to OKEA at peak production. These are project estimates rather than guaranteed outcomes. DNO’s business is exposed to the operational, political and commercial conditions of frontier and emerging petroleum regions, particularly Iraqi Kurdistan and Yemen. Its public profile combines the role of an independent producer with that of a regional exploration and development company. The company’s principal offerings are not consumer products but crude oil and natural gas production, petroleum reserves, exploration acreage and operated field-development capabilities. Its current portfolio, as described in company materials, includes interests in Norway, the United Kingdom, Iraqi Kurdistan, the Netherlands and Yemen, together with an indirect Côte d’Ivoire exposure.

History

DNO ASA was established in Norway in 1971 and developed as an independent oil company focused initially on petroleum opportunities in and around the North Sea. It became the first Norwegian oil company to list on the Oslo Stock Exchange, doing so in 1981. This early history places DNO among the pioneers of Norway’s independent petroleum sector, although the company’s geographic emphasis later moved substantially away from its original North Sea base. DNO entered Yemen in 1998, its first major move into the Middle East. The company subsequently entered the Kurdistan region of Iraq in 2004, at a time when the area had little developed international oil production. This decision became a turning point. DNO’s early exploration work in Kurdistan led to the development of the Tawke field, from which production began in 2007. The short interval between the start of exploration and first production demonstrated the company’s willingness to operate in an emerging petroleum province and gave it a distinctive position among international independents. Tawke became DNO’s principal producing asset in Kurdistan. The company later developed the neighboring Peshkabir field, which began production in 2018. Together, the two fields became the center of DNO’s reserve base and production profile in the region. DNO has characterized itself as the leading international operator in Kurdistan by production and reserves, citing more than 110,000 barrels of oil per day from the fields in 2017 and more than 500 million barrels of combined proven and probable reserves. Such figures are tied to particular reporting dates and field evaluations. The company’s Middle Eastern strategy was accompanied by a renewed North Sea expansion. In 2017, DNO acquired Origo Exploration and re-entered Norway, adding offshore exploration licenses on the Norwegian Continental Shelf. The portfolio later expanded into the Norwegian Sea and Barents Sea. The transaction also supported entry into the United Kingdom Continental Shelf, where DNO obtained interests in exploration licenses. This created a portfolio spanning producing fields, development projects and exploration acreage in both the Middle East and northwest Europe. DNO’s Yemen operations became the subject of labor and responsible-business criticism after the company suspended operations in 2015 amid the war-like conditions in the country. Workers and their representatives alleged that employees had been dismissed through text messages and email and had not received compensation and benefits to which they were entitled. In 2018, the Norwegian National Contact Point found that DNO had not met the expectations in the OECD Guidelines regarding advance notice and consultation with DNO Yemen employees. The process also addressed questions concerning organizing rights, collective bargaining and the validity of dismissals. The finding was a significant non-financial controversy in DNO’s history, although it was not a criminal conviction or a finding that resolved every underlying labor claim. DNO continued to build its North Sea development pipeline. In April 2024, the company and partners including OKEA advanced plans for the Brasse discovery. The proposed development involved a tie-back to the nearby Brage platform, with the field expected to be renamed Bestla. Published estimates cited approximately 24 million barrels of recoverable reserves and a targeted start of production in the first half of 2027. The project illustrated DNO’s preference for using existing infrastructure where possible to develop offshore resources. Company materials describe DNO’s portfolio as extending across Iraqi Kurdistan, Norway, the United Kingdom, the Netherlands and Yemen, with an indirect interest in Côte d’Ivoire. The company therefore combines long-standing regional production in Kurdistan with exploration and development exposure in the North Sea and other jurisdictions. Its history is shaped by geographic repositioning, frontier entry, field development and the operational risks associated with politically unstable producing regions.

  • 2024

    Brasse development advances

    [5]

    DNO and partners advance plans to develop the Brasse field, expected to be renamed Bestla, through a tie-back to the Brage platform.

  • 2018

    Peshkabir field begins production

    [1]

    The neighboring Peshkabir field in Iraqi Kurdistan is brought on production.

  • 2018

    National Contact Point finding on Yemen labor practices

    [4]

    Norway’s National Contact Point concludes that DNO did not meet OECD expectations on prior notice and consultation with DNO Yemen employees during the 2015 suspension of operations.

  • 2017

    Return to the North Sea

    [1]

    DNO re-enters Norway and enters the United Kingdom Continental Shelf through the acquisition of Origo Exploration.

  • 2011

    Bijan Mossavar-Rahmani becomes executive chairman

    [3]

    Bijan Mossavar-Rahmani begins serving as DNO’s executive chairman.

  • 2007

    Tawke field begins production

    [1]

    Production starts at the Tawke field after exploration began two years earlier.

  • 2004

    Entry into Iraqi Kurdistan

    [1]

    DNO becomes the first international oil company to enter the Kurdistan region of Iraq.

  • 1998

    Entry into Yemen

    [1]

    DNO enters Yemen, its first major operating market in the Middle East.

  • 1981

    Listing on the Oslo Stock Exchange

    [1]

    DNO becomes the first Norwegian oil company to list on the Oslo Stock Exchange.

  • 1971

    DNO is founded

    [1]

    DNO is established in Norway as an independent oil company.

Products and positioning

Independent oil and gas operator with a strong Middle Eastern production base and a diversified North Sea exploration and production portfolio.

  • Upstream petroleum production

    Crude oil

    Crude oil is DNO’s principal produced commodity. The company’s most prominent oil-producing interests are the Tawke and Peshkabir fields in Iraqi Kurdistan. DNO’s upstream model involves exploration, field development, operation and production rather than consumer-facing fuel retail or branded petroleum products.

  • Upstream petroleum production

    Natural gas

    DNO holds interests in oil and natural gas exploration, development and production licenses. Gas is part of the company’s upstream resource portfolio, although the cited reference material identifies crude oil production in Iraqi Kurdistan as the central feature of its operating profile.

  • Oil and gas assets

    Exploration and field-development interests

    DNO’s broader offering to shareholders is a portfolio of petroleum licenses and operated or non-operated interests at different stages of the upstream lifecycle. These include producing assets in Iraqi Kurdistan, exploration licenses in Norway and the United Kingdom, and development opportunities such as the Brasse/Bestla field in the North Sea.

Controversies

  • 2018

    Yemen employee consultation and dismissal controversy

    Following DNO’s 2015 suspension of Yemeni operations, employee representatives raised concerns about collective dismissals, insufficient consultation, organizing rights and unpaid wages or benefits. Norway’s National Contact Point concluded in 2018 that DNO had not met the expectations in the OECD Guidelines concerning prior notice and consultation with DNO Yemen employees.

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Brand decisions

  • 2024

    Advance Brasse/Bestla tie-back developmentStrategy

    Background

    DNO and its partners evaluated a North Sea development that could use nearby infrastructure rather than rely on a standalone offshore facility.

    Action taken

    The partners advanced plans to tie the Brasse field, expected to be renamed Bestla, back to the Brage platform, with production targeted for the first half of 2027.

    Aftermath

    The project became a significant development opportunity in DNO’s North Sea portfolio, subject to project execution, approvals and the stated production schedule.

    Estimated recoverable reserves. Approximately 24 million barrels (2024 project estimate)

  • 2017

    Acquire Origo Exploration and re-enter the North SeaM&A

    Background

    DNO aimed to broaden its portfolio beyond Iraqi Kurdistan and rebuild a position in northwest European offshore exploration.

    Action taken

    The company acquired Origo Exploration, gaining interests and licenses in Norway and the United Kingdom.

    Aftermath

    DNO expanded its presence across the Norwegian Continental Shelf and the United Kingdom Continental Shelf, including the Norwegian Sea and Barents Sea.

  • 2004

    Enter Iraqi KurdistanStrategy

    Background

    DNO sought growth beyond its traditional North Sea focus and entered a largely undeveloped international oil province in the Kurdistan region of Iraq.

    Action taken

    The company became the first international oil company to enter the region and pursued exploration and development activities that led to the Tawke project.

    Aftermath

    The move became the foundation of DNO’s modern production and reserve position and made Iraqi Kurdistan its defining operating region.

Sources5 sources

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