Rockhopper Exploration launches US$200 million capital raise to advance Falkland Islands Sea Lion oil project

Rockhopper Exploration has launched a capital raising of approximately US$200 million through a placing of new ordinary shares and an open offer, both priced at 70 pence per share. The oil and gas company, which holds key interests in the North Falkland Basin, is working with joint bookrunners Canaccord Genuity and Peel Hunt on the transaction. The placing is expected to close no later than 7:00 a.m. BST on August 28, 2026.

Rockhopper announces up to US$200 million share raise

The raise splits into two parts. The larger chunk—around US$180 million—comes through a placing of new ordinary shares, while the remaining up to US$20 million is open to existing shareholders via an open offer, also at 70 pence per share.

That 70 pence issue price sits at a roughly 4.9% discount to the 30-day volume-weighted average price of 73.58 pence, calculated through August 21, 2026. Modest by market standards—enough to pull in institutional demand without hitting existing holders too hard.

Rockhopper Exploration is raising up to US$200 million—US$180 million through a placing and up to US$20 million via an open offer—both priced at 70 pence per share.

Canaccord Genuity and Peel Hunt are running the books. Members of the public can’t participate directly, and existing shareholders who join the placing must waive their open offer entitlements as a condition of participation. A circular with full open offer details was expected around August 28, 2026.

Why Rockhopper is raising capital now

The timing isn’t random. Rockhopper’s August 28, 2026 announcement flagged the acquisition of its pro-rata share of the OSX-1 floating production unit—a key piece of infrastructure for Sea Lion—alongside preparatory work tied to accelerating the central development area.

Two days later, a new reserve report from NSAI added real weight to the investment case. That report showed a US$788 million increase to Rockhopper’s NPV10 for its 2P+2C barrels—a meaningful upward revision that landed at a strategically useful moment, right as the company was going to market for fresh capital.

CEO Sam Moody pointed to it directly. “The new NSAI report published on August 26, 2026 shows a $788m increase to our NPV10 for our 2P+2C barrels,” he said, adding that the company is “on track for First Oil from Sea Lion in Q1 2028 with development drilling expected to commence early next year.”

The NSAI report also reconfirmed material exploration prospects across the North Falkland Basin. Rockhopper is planning further exploration drilling beyond the current development phase, giving investors additional upside alongside the core production story.

How the proceeds will be allocated

Rockhopper has been specific about where the money goes. The largest single allocation—around US$100 million—covers the company’s estimated share of central development area costs, plus its proportionate cost of the OSX-1 floating production unit, through to mid-2028.

That mid-2028 horizon is deliberate, taking the funding runway past Q1 2028 when Rockhopper expects to start receiving positive cash flow from NDA Phase 1. The raise is essentially built to bridge the gap to self-funding.

A further US$20 million is earmarked for Rockhopper’s portion of exploration and well-deepening activities under NDA Phase 1. Another US$20 million addresses early project failure contingent liability provisions for that same phase—a risk management allocation that signals conservative planning. The final US$60 million is held as additional contingency across all Falkland Islands activities, providing flexibility through to the targeted CDA final investment decision in mid-2028.

Background: Sea Lion and the North Falkland Basin

Sea Lion is one of the largest undeveloped oil discoveries in the South Atlantic. Located in the North Falkland Basin, the project has been in development for well over a decade, with Rockhopper holding a significant interest throughout.

The project runs in phases. NDA Phase 1 is the first stage of the broader Sea Lion development, and the CDA—the central development area—serves as the core production hub, with a final investment decision targeted for mid-2028, contingent on positive cash flow emerging from First Oil in Q1 2028.

Development drilling is expected to kick off early in 2027, putting the project on a tight schedule between now and first production. That compressed timeline is a key reason Rockhopper is raising capital now rather than waiting. Share authorities used to execute the raise were granted at the company’s annual general meeting on June 30, 2026, giving the board room to move quickly once the OSX-1 acquisition opportunity and the updated NSAI report aligned.

Flexibility through to the CDA FID

Rockhopper Exploration is raising up to US$200 million—US$180 million through a placing and up to US$20 million via an open offer—both priced at 70 pence per share. The funds will support its share of Sea Lion development costs, exploration activities, contingency provisions, and flexibility through to the CDA final investment decision in mid-2028.

First Oil from Sea Lion is targeted for Q1 2028, with development drilling set to begin in early 2027. The fresh NSAI reserve report has increased Rockhopper’s NPV10 for its 2P+2C barrels by US$788 million, strengthening the rationale for the raise. The placing was expected to close by 7:00 a.m. BST on August 28, 2026.

Kelly Lippke

Kelly is an experienced writer with 15 years of experience exploring the big stories that shape our world, from tech breakthroughs and space exploration to climate, energy, and the fascinating quirks of science. She has a talent for turning complex ideas into sharp, memorable insights that stay with readers long after they’ve finished reading.