Constellation Oil Services Holding S.A. lists on Euronext

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  • Market capitalisation of approximately NOK 12 billion
  • 24th listing on Euronext in 2026
  • 10th international admission on Euronext in 2026

Oslo – 26 May 2026 – Euronext today congratulates Constellation Oil Services Holding S.A. (ticker code: COSH) on its uplisting from Euronext Growth Oslo to Euronext Oslo Børs. The company listed on Euronext Growth in March 2025. This is the 24th listing on Euronext so far this year and the 10th international admission in 2026. 

Constellation is a leading offshore oil and gas drilling services provider in Brazil, holding about one-fifth of the country’s offshore drilling market. With 2,000 employees and a 46-year track record, the company has established a strong position in Brazil, which is one of the largest and fastest-growing markets in the global offshore drilling industry.

At the market opening today, the share price was NOK 142 based on the closing price on Euronext Growth Oslo on 22 May 2026, giving the company a market capitalisation of NOK 11.99 billion on the first day of trading on Euronext Oslo Børs. 

Rodrigo Ribeir, CEO of Constellation, said: “When we listed on Euronext Growth Oslo in March 2025, we committed to increasing visibility, deepening investor engagement and demonstrating the strength and resilience of our business. Fourteen months later, we are delivering on those commitments. Brazil’s offshore sector is experiencing a prolonged growth cycle, and Constellation is well positioned through its long-term contracts, operational track record and experienced team that has successfully navigated every market cycle in our industry. We have built a resilient and sustainable business, focused on delivering consistent growth and solid returns to shareholders, and we remain confident in our ability to continue executing on our strategy.” 

Rodrigo Ribeir, CEO of Constellation Oil Services, rang the bell this morning with colleagues to celebrate the uplisting of the company to Euronext Oslo Børs. The company was welcomed by Øivind Amundsen, CEO of Euronext Oslo Børs. (Photo: Thomas Brun | NTB)

Caption: Rodrigo Ribeir, CEO of Constellation Oil Services, rang the bell this morning with colleagues to celebrate the uplisting of the company to Euronext Oslo Børs. The company was welcomed by Øivind Amundsen, CEO of Euronext Oslo Børs. (Photo: Thomas Brun | NTB)

 

CONTACTS  

MEDIA – mediateam@euronext.com 
Norway Cathrine Lorvik Segerlund +47 41 69 59 10 
     
Download press release - Constellation Oil Services Holding S.A.

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