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OESAAnalysis

Company · the network on the Norwegian shelf

COSL

COSL is the responsible company for 5 rigs at the Norwegian Offshore Directorate. The rigs have spudded 61 wellbores on 11 fields in the last three years, for 3 operators.

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Rigs with an Acknowledgement of Compliance (AOC) at Sodir
5
Sodir, mobile facilities · 7 Oct 2026
Wellbores drilled in the last three years
61
Sodir, wellbores · 7 Oct 2026

The network

From the responsible company at Sodir to rig, wells, fields and operators. The responsible company is not necessarily the owner. The figures cover wellbores spudded in the last three years.

COSLresponsible for 5 rigs (Sodir)At Sodir: COSL Drilling Europe AS
RigSodir, mobile facilities · 7 Oct 2026
Wells, last three yearsSodir, wellbores · 7 Oct 2026
FieldsSodir, wellbores · 7 Oct 2026
OperatorSodir, wellbores · 7 Oct 2026
  1. RigCOSLPromoterSemi-submersible (steel) · NorwayAOC: valid
    Wells, last three years

    17 wellbores

    Latest well: 16/7-A-2 AH (Sigyn), 15 Sep 2026
    Fields
    Operator
  2. RigCOSLProspectorSemi-submersible (steel) · NorwayAOC: valid
    Wells, last three years

    17 wellbores

    Latest well: 6407/5-3 S, 10 Aug 2026
    Fields
    Operator
  3. RigCOSLPioneerSemi-submersible (steel) · BahamasAOC: valid
    Wells, last three years

    16 wellbores

    Latest well: 25/8-24 S, 4 Oct 2026
    Fields
    • Balder 13
    • No field (exploration) 3
    Operator
  4. RigCOSLInnovatorSemi-submersible (steel) · NorwayAOC: valid
    Wells, last three years

    11 wellbores

    Latest well: 34/10-56 S, 25 Aug 2026
    Fields
    Operator
  5. RigCOSLRivalSemi-submersible (steel) · BahamasAOC: valid
    Wells, last three years

    No wells spudded in the last three years.

    Fields

    –

    Operator

    –

Fleet

The rigs for which COSL is the responsible company (Sodir), what they are drilling according to the Norwegian Offshore Directorate and where they were in the AIS picture 7 Oct 2026, 14:34 UTC. The responsible company is not necessarily the owner.

Rigs

Norwegian Offshore Directorate, exploration wells being drilled (NLOD 2.0), 7 Oct 2026 · Norwegian Offshore Directorate, wellbores spudded in the last 120 days (NLOD 2.0), 7 Oct 2026 · AIS from Kystverket (Norwegian Coastal Administration, Kystdatahuset real-time picture) (NLOD 1.0), 7 Oct 2026, 14:34 UTC · OESA, rig key Sodir ↔ MMSI ↔ IMO (curated: name match in AIS and SafeSeaNet, checked against the well) (NLOD 1.0 / NLOD 2.0), 7 Oct 2026

No well in the last 120 days at Sodir and not in the AIS picture: COSLRival.

Where the rigs have been, latest day with data: 1 Oct

Rigs and offshore vessels that lay within 2 km of a facility at under 1 knot for at least 30 minutes, according to the AIS positions for 1 Oct 2026 from the Norwegian Coastal Administration. Kystdatahuset publishes the history about a week late. A visit shows that the vessel was there, not who it worked for. AIS from Kystverket (Norwegian Coastal Administration, Kystdatahuset historical positions) (NLOD 1.0), latest day 1 Oct 2026 · Norwegian Coastal Administration, Kystdatahuset: register type (SafeSeaNet) (NLOD 1.0), 1 Oct 2026 · Norwegian Offshore Directorate, facilities with position (NLOD 2.0), 7 Oct 2026 · OESA, rig key Sodir ↔ MMSI ↔ IMO (curated) (NLOD 1.0 / NLOD 2.0), 7 Oct 2026

Method: A visit is a continuous stay within 2 km of a facility at under 1 knot for at least 30 minutes, computed from the AIS positions. Gaps in the data of up to 60 minutes, or 3 hours when the vessel is in the same place before and after, do not count as interruptions. Hours are the sum of the visits. Only rigs and vessels with an offshore register type or registered with the Norwegian Offshore Directorate are included.

Who charters a rig or vessel, and at what rate, is not in open data. A vessel is linked to a field only when AIS shows it within 2 km of one of the field's own facilities or its host facility, at under 1 knot – that says the vessel was there, not who it works for. Facilities on the export route do not count. AIS coverage offshore varies. A vessel without positions for a period may have been there without being recorded. Ship data: Norwegian Coastal Administration. Not for navigation.

Connected to

Operators the rigs have drilled for

Sodir, wellbores · 7 Oct 2026

Events

Ownership changes, exploration wells and discoveries, rigs that move, production start-up and contracts, with a link to the source.

Last 12 months (7 Oct 2025–7 Oct 2026). Wells: exploration wells (wildcat and appraisal). Development wells appear under Rigs when a rig moves there. Rigs: derived by OESA from Sodir's wellbores. An event when a moveable rig spuds a development or exploration well for another operator, or more than 3 km from its previous wellbore in another field or licence. Moves between templates on the same field are not included. «Came from» is the rig's previous wellbore at Sodir. The responsible company is the one Sodir lists as responsible for the rig today, not necessarily the owner. Sources: Norwegian Offshore Directorate (Sodir, NLOD 2.0): licence transfers (retrieved 7 Oct 2026), exploration wells and discoveries (7 Oct 2026), wellbores with drilling rig and the company responsible for the rig (7 Oct 2026) and field status (7 Oct 2026).

Sources

All figures and links on the page come from these sources. Curated links are entered by hand by OESA from the source text, and the quote is checked against the source at every build.

Not in the data: The rig's own position (Sodir only has the well's), contracts and day rates, and wells older than three years.