London-listed Rockhopper Exploration has made a final investment decision (FID) on its long-delayed Sea Lion crude oil field development offshore the Falkland Islands in the South Atlantic.
Rockhopper's board has now sanctioned the project, the firm said today, with phase 1 planned for first output in 2028 targeting 170mn bl of crude with a peak production of 50,000 b/d. Phase 2 is anticipated to recover further gross resources of 149mn bl. The field is estimated to hold total gross resources of 917mn bl.
Sea Lion had a series of FID target dates in 2016, 2017, 2018, 2023-24 and 2024, all of which were missed. Rockhopper's original plans announced in 2012 estimated first output for 2017. The field was discovered in 2010.
Israel-based Navitas Petroleum revived the project after buying a 65pc operator stake in 2022, and the Falkland Islands government has approved the field development and production programme for phases 1 and 2.
Rockhopper now says total funding requirement for the project is $1.8bn to first oil — up from $1.4bn as recently as May — and $2.1bn to project completion.
"There remains some uncertainty around actual project costs," Rockhopper admitted today and around estimated costs of any early project failure required by the Falklands government. The project financing includes $1bn of senior debt — of which $350mn is Rockhopper's — and the firm plans a $140mn placing.

