Strongest growth in Olje og gass

The companies in Olje og gass with the strongest revenue growth last year.

Sea1 Marine Crew AS has the highest revenue growth in the Olje og gass sector at 366.2% (2025). Source: Brønnøysund Register Centre (Register of Company Accounts), processed by Morning Analytics 6 November 2026.

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The picture in figures

The bars show the top ten and the bottom ten of 25 in the list.

Highest 10
SEA1 MARINE CREW…Sea1 Marine Crew AS366.2%TRANSOCEAN BARENT…Transocean Barents ASA298.9%INEOS E&P (NORGE)…INEOS E&P (NORGE) Petroleum DK AS297.9%WEST ASSET MANAGE…West Asset Management AS152.0%DOF SUBSEA NORWAY…DOF Subsea Norway AS142.4%Delmar Systems ASDelmar Systems AS127.2%DEEPOCEAN CORPORA…Deepocean Corporate AS116.6%DOF SUBSEA CHARTE…DOF Subsea Chartering AS110.0%SIEM OFFSHORE OPC…Siem Offshore Opco AS101.0%Sarens ASSarens AS98.4%
Lowest 10
Tendeka ASTendeka AS49.8%Techdof Brasil ASTechdof Brasil AS50.5%Havila Harmony ASHavila Harmony AS52.3%INTELLISERV NORWA…Intelliserv Norway AS52.5%COSL OFFSHORE MAN…Cosl Offshore Management AS58.1%DOF SUBSEA REDERI…DOF Subsea Rederi Iii AS61.7%ALTERA INFRASTRUC…Altera Infrastructure Production AS62.9%REACH SUBSEA SHIP…Reach Subsea Shipping AS62.9%EQUINOR REFINING…Equinor Refining Norway AS63.7%SUPERIOR ENERGY S…SUPERIOR ENERGY SERVICES (NORWAY) AS68.9%

What explains the placing?

  • 1. Sea1 Marine Crew AS 366.2% Nothing in particular to note.
  • 2. Transocean Barents ASA 298.9% Reports in a currency other than kroner.
  • 3. INEOS E&P (NORGE) Petroleum DK AS 297.9% Reports in a currency other than kroner.
#Company Municipality revenue growth
1 Sea1 Marine Crew AS Kristiansand 366.2%
2 Transocean Barents ASAother currency Stavanger 298.9%
3 INEOS E&P (NORGE) Petroleum DK ASother currency Bamble 297.9%
4 West Asset Management AS Alver 152.0%
5 DOF Subsea Norway AS Bergen 142.4%
6 Delmar Systems AS Øygarden 127.2%
7 Deepocean Corporate AS Oslo 116.6%
8 DOF Subsea Chartering ASother currency Bergen 110.0%
9 Siem Offshore Opco ASother currency Kristiansand 101.0%
10 Sarens AS Steinkjer 98.4%
11 Allseas Norway AS Sandnes 95.4%
12 Archer Vertikal AS Volda 88.3%
13 Havila Subcon AS Herøy 87.5%
14 Enhanced Drilling AS Øygarden 81.4%
15 Havila Subsea AS Herøy 80.7%
16 SUPERIOR ENERGY SERVICES (NORWAY) AS Sandnes 68.9%
17 Equinor Refining Norway AS Alver 63.7%
18 Reach Subsea Shipping AS Haugesund 62.9%
19 Altera Infrastructure Production AS Trondheim 62.9%
20 DOF Subsea Rederi Iii AS Bergen 61.7%
21 Cosl Offshore Management AS Sandnes 58.1%
22 Intelliserv Norway AS Sola 52.5%
23 Havila Harmony AS Herøy 52.3%
24 Techdof Brasil ASother currency Bergen 50.5%
25 Tendeka ASother currency Sola 49.8%