Troll gas field
Norwegian gas and petroleum field in the North Sea
Troll is a natural gas and oil field in the Norwegian sector of the North Sea, one of the biggest in the North Sea, holding 40% of Norway’s gas – it also possesses significant quantities of oil, in thin zones under the gas cap, to the west of the field. The field as a whole consists of the main Troll East and Troll West structures in blocks 31/2, 31/3, 31/5 and 31/6, about 65 kilometres (40 mi) west of Kollsnes, near Bergen. Most of the gas lies in Troll East.
Operators
The field is operated by Equinor, which has a 30.58% interest. The other partners are Petoro (56%), Shell plc (8.1%), ConocoPhillips (1.62%) and TotalEnergies (3.69%).
Platforms
Gas and oil from the field are extracted via three platforms – Troll A, B and C.
The Troll A platform, based on the Condeep technology, is the tallest structure ever to be moved. Total weight is 656,000 tons and the total height 472 metres (1,549 ft). The legs extend 303 metres (994 ft) below sea level. This platform came into production in 1996 after being towed out from Rogaland in May 1995.
The Troll B Platform is a semi-submersible designed by Doris and fabricated from concrete; thought to be the only concrete semisubmersible.
Begin with the source’s own compact description: “Troll gas field” is norwegian gas and petroleum field in the North Sea. The dossier treats that line as a proposition to test through Troll, field and Norwegian, not as a finished interpretation.
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The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Aug 11, 2026. The linked authority identifier is Q2635133. Authority coordinates are 60.646, 3.726. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1996 and 1995.
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This entry incorporates text from “Troll gas field” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.