The PGSA Blacklist: Iran’s Expanding Maritime Compliance Regime in the Strait of Hormuz
Iran’s vessel restrictions are becoming part of a wider effort to shape commercial behaviour through the world’s most strategically important energy chokepoint.
Conflict across Hormuz and Red Sea is reshaping global energy security priorities.
War, chokepoints and the strategic repricing of global energy supply
02 September 2026 | Energy Security | Arabian/Persian Gulf · Red Sea · Global
Renewed conflict around Iran, severe disruption through the Strait of Hormuz and rising risk in the Red Sea are increasing the strategic value of energy supplies and transport routes that are geographically diversified, politically accessible and resilient under pressure.
Signals drawn from the NERAI Foresight Desk on Power & Corridors .
Signal 01: Renewed US-Iran escalation and rising oil-market pressure.
Signal 02: Regional political alignment is becoming more fragmented.
Signal 03: Alternative energy supply and investment are acquiring greater strategic value.
Signal 04: Bab-el-Mandeb disruption risk is rising even without formal corridor closure.
The latest NERAI signal set points to a widening interaction between military escalation, political alignment and energy-market adaptation.
The Strait of Hormuz is already operating under severe pressure. NERAI currently records transit at 92% below baseline, while cost-pressure indicators remain elevated and continue to point towards a materially degraded commercial operating environment.1
At the same time, the Red Sea is becoming increasingly important to the same strategic picture. NERAI’s latest Bab-el-Mandeb outlook assesses disruption probability at 15.8% over two weeks, 47.0% over four weeks and 74.6% over eight weeks, with the model emphasising selective disruption rather than formal closure.1
The combined implication is more important than either corridor considered alone. The global energy system is increasingly exposed to pressure at both the Arabian/Persian Gulf and Red Sea ends of the wider Middle Eastern export network.
This shifts the strategic question from simply asking how much energy exists to asking whether that energy can still move reliably from producer to consumer.
Renewed US-Iran tensions have again placed the Strait of Hormuz at the centre of energy-market risk. Oil prices climbed after President Donald Trump threatened further strikes against Iran, as markets reacted to the possibility of additional disruption to Gulf supply.2
The immediate market reaction is familiar. The deeper strategic problem is not.
Repeated disruption around Hormuz increasingly challenges the assumption that Gulf supply can be judged mainly by production cost and reserve size. The concentration of exports through a narrow and contested maritime corridor means that otherwise highly competitive barrels carry a growing exposure to military, insurance and operational risk.
Foresight implication: persistent insecurity around Hormuz increases the strategic premium attached to supply that can reach consumers without passing through a contested chokepoint.
The NERAI theme set also points to a less obvious development: direct exposure to Iranian military activity does not necessarily translate into straightforward regional political alignment.
Foreign Policy has argued that Jordan increasingly views potential Israeli annexation of the West Bank as a deeper strategic threat than Iran, despite Jordan’s exposure to Iranian missile and drone activity during the wider conflict.3
This matters because governments across and around the Arabian/Persian Gulf are balancing several risks at once: Iranian military activity, domestic stability, relations with Washington, Israeli policy, energy dependence, trade exposure and public opinion.
Foresight implication: prolonged conflict may produce more fragmented and issue-specific political behaviour rather than two clearly defined regional blocs.
Venezuela is again attracting international energy attention, with major operators and infrastructure companies preparing new agreements that could bring additional foreign investment into its oil and power sectors.4
Venezuela cannot quickly replace the scale of Arabian/Persian Gulf production. Its infrastructure remains constrained and political risk remains substantial. But strategic relevance does not require immediate equivalence.
Energy systems often change because governments begin placing greater value on optionality.
The same logic is visible in Norway. Oslo continues to support oil and gas exploration in the Barents Sea despite European pressure for an Arctic drilling moratorium, reinforcing the importance governments still attach to secure domestic and allied production.5
Foresight implication: politically difficult, higher-cost or previously marginal supplies become more valuable when they offer strategic redundancy.
The latest NERAI corridor briefing shows that Bab-el-Mandeb should not be treated as a binary question of open or closed. The more important risk is selective commercial disruption.
NERAI currently estimates disruption probability at 15.8% over two weeks, 47.0% over four weeks and 74.6% over eight weeks.1
The distinction matters because commercial disruption can become significant long before a corridor is formally closed. Tanker traffic can decline, war-risk premiums can rise, vessel owners can delay passages and cargo can be rerouted even while some shipping continues to move.
The risk becomes more significant when considered alongside Hormuz. Saudi Arabia’s East-West pipeline gives the Kingdom an important means of moving crude towards Red Sea export terminals when Gulf routes are under pressure. That alternative becomes less valuable if Red Sea infrastructure or Bab-el-Mandeb traffic is also exposed to persistent disruption.1
Foresight implication: if Hormuz remains severely disrupted while Bab-el-Mandeb pressure rises, redundancy begins to weaken at both ends of the regional energy-export system.
The most important shift is conceptual.
Energy security has traditionally been assessed through reserves, production capacity, price and increasingly carbon intensity.
A further variable is becoming harder to ignore:
That question changes the relative value of producers, ports, pipelines and maritime routes.
Arabian/Persian Gulf production remains globally critical, but a large share is exposed to Hormuz.
Saudi Red Sea terminals provide an important bypass, but those flows become less resilient if Bab-el-Mandeb and Red Sea infrastructure are also under threat.
Venezuela, Norway, Brazil, West Africa and other Atlantic Basin producers consequently acquire greater strategic value not because they can immediately replace Gulf production, but because they expand the number of viable supply options.
Does simultaneous pressure on Hormuz and the Red Sea accelerate a structural revaluation of global energy supply, routing and strategic redundancy?
These scenarios are Power & Corridors analytical pathways informed by NERAI signals and underlying source material. They are not NERAI model outputs.
Hormuz remains severely impaired while Red Sea disruption stays selective rather than systemic.
Commercial implication: higher freight, insurance and inventory costs become persistent rather than temporary.
Continued corridor pressure pushes buyers and governments towards Atlantic Basin production, alternative pipelines, larger inventories and longer-term supply diversification.
Commercial implication: temporary workarounds begin influencing investment and contracting decisions.
Severe Hormuz disruption is compounded by materially greater Red Sea disruption or attacks on alternative export infrastructure.
Commercial implication: strategic reserves, emergency sourcing and demand-management measures become increasingly important.
Military tensions ease and shipping conditions improve across both Hormuz and the Red Sea.
Commercial implication: immediate risk premiums fall, although diversification and redundancy remain embedded in future planning.
01 — Hormuz transit recovery
Sustained improvement or further deterioration in tanker and commodity-vessel movements.
02 — Bab-el-Mandeb disruption
Evidence that selective disruption is broadening across vessel classes or nationalities.
03 — Red Sea terminal exposure
Additional attacks or operational disruption affecting Yanbu, Jizan or other alternative export infrastructure.
04 — Commercial attacks
Further incidents involving tankers, LNG carriers or other strategically important shipping.
05 — Alternative supply investment
New commitments in Venezuela, Norway, Brazil, West Africa or other non-Gulf producers.
06 — Buyer diversification
Changes in Indian, Chinese, European and other major importers’ sourcing patterns.
07 — Strategic reserves
Releases, replenishment programmes or changes in reserve policy.
08 — Corridor infrastructure
New investment in bypass pipelines, terminals, storage and alternative export routes.
The strongest commercial signal is the rising value of redundancy.
Energy buyers and logistics operators increasingly need to assess price, supplier reliability, maritime geography, insurance exposure, storage depth, alternative loading points and the speed with which supply can be substituted.
The risk is no longer simply that one corridor becomes unavailable.
The greater concern is that several routes that previously provided redundancy begin experiencing disruption at the same time.
The latest NERAI signals suggest that the present energy shock should not be understood solely through the Strait of Hormuz.
Hormuz remains the most severe immediate constraint, but rising Red Sea disruption matters because it weakens the routes and infrastructure intended to provide strategic redundancy.
This changes the valuation of energy security. Barrels that are abundant but dependent on contested corridors acquire additional risk, while supplies that are politically difficult, more expensive or geographically distant gain value because they increase optionality.
The same logic applies to infrastructure. Pipelines, storage, alternative terminals and multiple maritime routes increasingly function as forms of geopolitical insurance.
Bottom line: the next phase of global energy competition may be shaped less by who possesses the largest reserves than by who can keep supply moving when several strategic corridors are under pressure at once.
HIGH CONFIDENCE that severe disruption around Hormuz is increasing commercial and market pressure on Arabian/Persian Gulf energy flows.
MODERATE TO HIGH CONFIDENCE that sustained Red Sea pressure would materially weaken the resilience provided by alternative regional export routes.
MODERATE CONFIDENCE that persistent dual-corridor pressure will accelerate investment in alternative producers, storage and transport infrastructure.
This brief combines signals identified through the NERAI Foresight Desk on Power & Corridors with Power & Corridors analysis of geopolitical, maritime, energy and commercial implications. NERAI model outputs are identified explicitly. P&C scenario pathways represent analytical judgements and are not presented as model forecasts.
1. Power & Corridors × NERAI, NERAI Foresight Desk, live theme clustering, corridor indicators and Red Sea/Bab-el-Mandeb outlook. Source
2. OilPrice.com, “Oil Prices Climb as Trump Threatens New Strikes on Iran,” 1 September 2026. Source
3. Foreign Policy, “Jordan Sees Bigger Threat From Israel Than Iran,” 31 August 2026. Source
4. OilPrice.com, reporting on new Venezuelan energy agreements and changing international participation. Source
5. OilPrice.com, “Norway Wants Europe’s Energy Market, Without Sharing Its Trade-Offs,” 31 August 2026. Source
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