Exploration
Wellesley will drill 8 wells in the next 24 months alone, targeting a net resource of 105 mmboe.
Wellesley’s exploration strategy is aligned with the core ESG strategic themes of “Gas to Europe” and “Power From Shore Oil”. Any discoveries in the “Power From Shore Oil” theme will be developed as part of the FANTA area development, together with Wellesley’s Grosbeak, Swisher, Røver Nord and Toppand discoveries.
wells in 6
years
commercial
success rate
wells planned
in 2022/23
Røver Sør
- Low risk appraisal target following Røver Nord discovery
- Middle Jurassic Brent / Oseberg structural trap
- Charged from the Røver Nord structure, likely to share the same spill point
- To be developed as part of FANTA area development
Licence | PL923 |
---|---|
Partners | Equinor 40% (op), Wellesley 20%, DNO 20%, Petoro 20% |
PMean | 24 mmboe recoverable |
CoS | 48% |
Drilling | Q3 2022 |

Carmen
- Middle to Lower Jurassic structural trap
- HPHT gas/condensate reservoir
- De-risked by recent Toppand and Røver Nord discoveries
- Close to both Kvitebjørn and FANTA area development infrastructure
Licence | PL1148 |
---|---|
Partners | Wellesley 50% (op), Equinor 50% |
PMean | 105 MMboe recoverable |
CoS | 35% |
Drilling | 2023 |

Larven
- Downthrown Sognefjord structural/stratigraphic trap
- Hangingwall prospect adjacent to Troll field
- Key risk is migration
Licence | PL923 |
---|---|
Partners | Equinor 40% (op), Wellesley 20%, DNO 20%, Petoro 20% |
PMean | 70 mmboe recoverable |
CoS | 32% |
Drilling | 2023 |

Eggen
- Downfaulted Brent fault block
- Migration pathway from Røver Nord
- Oil/gas bearing reservoir
Licence | PL923 |
---|---|
Partners | Equinor 40% (op), Wellesley 20%, DNO 20%, Petoro 20% |
PMean | 35 mmboe recoverable |
CoS | 30% |
Drilling | 2023 |

Snowboy
- Low risk appraisal target following Toppand discovery
- Middle Jurassic Brent / Oseberg structural trap
- Charged from Toppand structure
- To be developed as part of FANTA area development
Licence | PL248C |
---|---|
Partners | Equinor 30% (op), Wellesley 30%, Petoro 40% |
PMean | 38 mmboe recoverable |
CoS | 50% |
Drilling | 2024 |

Harden
- Stratigraphic trap, derisked by Swisher and other area wells
- Upper Jurassic reservoir
- To be developed as part of FANTA area development
Licence | PL248C |
---|---|
Partners | Equinor 30% (op), Wellesley 30%, Petoro 40% |
PMean | 35 mmboe recoverable |
CoS | 29% |
Drilling | 2024 |

Minotaur
- Downthrown Brent appraisal target
- Adjacent to Atlantis discovery
- Development wells can be drilled from Atlantis subsea template
- Reservoir effectiveness and fault seal concept proven by Atlantis
Licence | PL878 |
---|---|
Partners | Equinor 40% (op), Wellesley 40%, Source 20% |
PMean | 25 mmboe recoverable |
CoS | 45% |
Drilling | 2023/24 |

Why Norway
Norway’s rich reserves of hydrocarbons, efficient tax terms, robust infrastructure and leading safety and environmental standards, make it the perfect place to focus Wellesley’s operations.
The country has been an established petroleum province for fifty years and will continue to produce for another fifty. Norway’s pipeline gas provides security of supply to its European markets in a time of increasing demand and geopolitical uncertainty.