Country · partial data
Ireland
4 fields and 17 companies on the Irish offshore can be followed in OESA, with data from DCEE, CSO, Marine Institute and EMODnet. The figures are in the source's unit with period and source.
The data
What the source has for the country. What is not listed here is not in the data and is not filled in.
- Level
- Partial data. Government data with some of this, for example the operator, licensees without shares or production per block.
- Ownership
- per licence, with shares
- Production
- per field and month, not all fields in the country
- Facilities
- linked to the fields by derivation (labelled)
- Pipelines
- from the source
- Period for the totals
- Apr 2025–Mar 2026
- Retrieved
- 8 Oct 2026
Fields
The fields on the Irish offshore with something to show. Fields with their own page are linked; the others can be followed on the globe.
FieldsDCEE · 8 Oct 2026; CSO · 8 Oct 2026; Marine Institute · 27 Sep 2026; EMODnet · 27 Sep 2026
| Name | Status | Operator |
|---|---|---|
| Ballycotton | Shut down | PSE Kinsale Energy Limited derived |
| Corrib | Producing | Vermilion Exploration and Production Ireland Limited derived |
| Kinsale | Shut down | PSE Kinsale Energy Limited derived |
| Seven Heads | Shut down | – |
Attribution: Petroleum Exploration and Development Offshore Ireland – Acreage Report, prepared by the Geoscience Regulation Office, Department of Climate, Energy and the Environment (gov.ie/dcee); Source: Central Statistics Office (CSO), Networked Gas Daily Supply and Demand, CC BY 4.0; Marine Institute / DECC, CC BY 4.0; EMODnet Human Activities (https://emodnet.ec.europa.eu), CC BY 4.0
Companies
The companies with a stake, operatorship or plants. Calculated production is OESA's estimate (share × production at the same level and for the same period).
CompaniesDCEE · 8 Oct 2026; CSO · 8 Oct 2026; Marine Institute · 27 Sep 2026; EMODnet · 27 Sep 2026
| Name | Roles | Fields with a stake | Licences | Operator of |
|---|---|---|---|---|
| PSE Kinsale Energy Limited | operator (partly derived), licensee | 2 | 1 | 1 lease |
| Nephin Energy Limited | licensee | 1 | 1 | 0 |
| Vermilion Energy Corrib Ireland Limited | licensee | 1 | 1 | 0 |
| Vermilion Energy Ireland Limited | licensee | 1 | 1 | 0 |
| Vermilion Exploration and Production Ireland Limited | operator (partly derived), licensee | 1 | 1 | 1 lease |
| Barryroe Transition Energy PLC | operator, licensee | 0 | 4 | 4 licences |
| Atlantic Petroleum (Ireland) Limited | licensee | 0 | 3 | 0 |
| Sosina Exploration Limited | licensee | 0 | 3 | 0 |
| Island Expro Limited | operator, licensee | 0 | 2 | 2 licences |
| Marginal Field Development Co | licensee | 0 | 2 | 0 |
| St Stephen's Gas Limited | licensee | 0 | 2 | 0 |
| St. Energy Limited | licensee | 0 | 2 | 0 |
| Europa Oil and Gas (lnishkea) Limited | operator, licensee | 0 | 1 | 1 licence |
| Lansdowne Oil and Gas PLC | licensee | 0 | 1 | 0 |
| Predator Oil and Gas Ventures Limited | operator, licensee | 0 | 1 | 1 licence |
| Theseus Limited | licensee | 0 | 1 | 0 |
| Woodside Energy (Ireland) Pty Limited | operator, licensee | 0 | 1 | 1 licence |
Attribution: Petroleum Exploration and Development Offshore Ireland – Acreage Report, prepared by the Geoscience Regulation Office, Department of Climate, Energy and the Environment (gov.ie/dcee); Source: Central Statistics Office (CSO), Networked Gas Daily Supply and Demand, CC BY 4.0; Marine Institute / DECC, CC BY 4.0; EMODnet Human Activities (https://emodnet.ec.europa.eu), CC BY 4.0
Derived operator: The source does not state the operator of the field directly, so OESA has derived it. The operator of the lease the field lies in (Offshore Petroleum Lease No. 1: Kinsale/Ballycotton). DCEE states the operator per authorisation. The operator of the lease the field lies in (Corrib Petroleum Lease). DCEE states the operator per authorisation.
The sources
The licence and attribution are verbatim as each source requires.
- DCEE – Petroleum Acreage Report at 31 Dec 2025 Department of Climate, Energy and the Environment · 31 Dec 2025No licence is stated with the data.Attribution: Petroleum Exploration and Development Offshore Ireland – Acreage Report, prepared by the Geoscience Regulation Office, Department of Climate, Energy and the Environment (gov.ie/dcee)also curated by OESA from this source · 8 Oct 2026
- CSO – indigenous gas production (PxStat NGSDM01/NGSD01) Central Statistics Office (CSO) · 8 Oct 2026Licence: CC BY 4.0Attribution: Source: Central Statistics Office (CSO), Networked Gas Daily Supply and Demand, CC BY 4.0
- Marine Institute / data.gov.ie – offshore gas pipelines and fields Marine Institute · 27 Sep 2026Licence: CC BY 4.0Attribution: Marine Institute / DECC, CC BY 4.0
- EMODnet Human Activities – pipelines, platforms and licences EMODnet · 27 Sep 2026Licence: CC BY 4.0Attribution: EMODnet Human Activities (https://emodnet.ec.europa.eu), CC BY 4.0