The last approval arrives

Afentra (LSE:AET) told the market on 29 October 2026 that the executive decree covering Block 3/05A had been published by the Angolan authorities, clearing the way for completion of its purchase of additional interests from Etu Energias in the coming weeks. A similar decree for Block 3/05 had been announced on 6 October.

The deal has been a long time coming. It was first announced in June 2025, when completion was expected in the second half of that year, subject to government approval.

About the company

Afentra is an oil and gas company focused on Angola, led by former Tullow Oil chief executive Paul McDade. Rather than relying on exploration, its approach is to acquire interests in producing or near-producing Assets from companies that are reshaping their portfolios, then work with joint venture partners to sustain output. Its Angolan positions include interests in offshore Blocks 3/05 and 3/05A, alongside a 35% operated interest in the onshore KON4 licence.

That focus on mature, producing fields gives the group exposure to Cash Flow from assets that already have infrastructure and operating histories, but it also means returns depend on continued Investment to hold production steady. The Etu Energias deal sits squarely within this strategy.

What Afentra is buying

According to the October updates, Afentra will acquire an extra 3.33% in Block 3/05, taking its interest to 33.33%, and an extra 3.66% in Block 3/05A, taking that interest to 24.99%. Both blocks lie in shallow water offshore Angola. The October announcements described the transaction as a joint Acquisition alongside Sonangol and Maurel & Prom, the other partners.

The net upfront consideration attributable to LSE:AET is $15.20m, with contingent payments of up to $6.74m linked to oil prices and production performance. The effective date is 31 December 2023, and the company expects the cash due at completion to be lower than the headline upfront figure because of adjustments for the period since then.

Those figures differ from the original June 2025 deal, which covered 5% of Block 3/05 and 6.7% of Block 3/05A for $23m upfront and up to $11m contingent. The smaller stakes and lower consideration are consistent with the interests now being shared among the partners.

Why it matters

Afentra is an Angola-focused producer led by former Tullow Oil chief executive Paul McDade, and its strategy is to build a portfolio by acquiring interests in producing assets from companies reshaping their holdings. Raising its share of Block 3/05 increases its exposure to cash flow from fields it already knows, rather than from exploration.

The structure also limits upfront outlay. When the deal was first announced, Etu's share of the assets was reported to have generated a 2024 net pretax profit of $14m, and chief executive McDade said the terms reflected a disciplined approach to Capital deployment.

Risks and dependencies

Completion still depends on the parties finalising the closing mechanics, and the timing of past approvals shows how slowly Angolan processes can move. The contingent element means the eventual price could rise if oil prices or production exceed agreed thresholds, while weaker output would reduce the value of the extra stake.

Production from these mature fields relies on continued investment. In its 12 October operational update, Afentra said the joint venture had agreed to fund the Impala-2 development well directly, up to a reduced gross cost cap of $60m, with first oil expected in January 2027. The rig was then to drill a sidetrack at the Pacassa South West discovery, with first oil anticipated in the first quarter of 2027. Delays or cost overruns would affect returns from the enlarged holding.

How the revised deal compares with the original

The numbers in the latest announcements are different from those in the original June 2025 agreement. Then, Afentra expected to buy 5% of Block 3/05 and 6.7% of Block 3/05A for $23m upfront with up to $11m contingent. The updated figures cover 3.33% and 3.66% respectively, with net upfront consideration of $15.20m and contingent payments of up to $6.74m. The company has explained the change as a joint acquisition alongside Sonangol and Maurel & Prom, which share the interests that Etu is selling.

The result is a smaller increase in Afentra's holdings but a lower price in absolute terms. Taking the contingent element into account, the maximum total of about $21.9m compares with $34m in the original structure. For shareholders, the change reduces the cash required to complete while still lifting the group's interest in Block 3/05 to 33.33% and in Block 3/05A to 24.99%.

Why the effective date matters

The deal has an effective date of 31 December 2023, which means the Economics are calculated from that date rather than from completion. Cash generated by the interests between then and closing is typically taken into account through adjustments, which is why the company expects the cash due at completion to be lower than the headline upfront figure. It is a reminder that the price paid is not a single number: it depends on adjustments, contingent payments linked to oil prices and production, and the timing of completion.

What drives the value of the stake

Production from Blocks 3/05 and 3/05A is mature, so the value of the extra stake depends on how well the joint venture sustains output. The Impala-2 development well, with first oil expected in January 2027 under a reduced gross cost cap of $60m, and the sidetrack at the Pacassa South West discovery, with first oil anticipated in the first quarter of 2027, are the next tests. Positive results would add production to the enlarged holding, while delays or cost overruns would reduce returns. Oil prices matter in two ways: they set the Revenue earned from barrels and they determine whether any of the contingent consideration becomes payable.

Next steps

Investors will then look to the Impala-2 and Pacassa South West results in early 2027 to judge whether the increased stake is adding the production the company expects. Oil price movements will also shape the contingent payments ultimately due.

The extra Etu interests will sit alongside LSE:AET's other Angolan positions, including a 35% operated interest in the onshore KON4 licence, so the completed deal would tilt the portfolio further towards producing offshore barrels.