The reroute is not the redundancy

A second pipeline or port can reduce physical concentration. It cannot guarantee a ship, an insurance certificate or a contract that still works under wartime conditions.

The conventional map of supply-chain risk is physical. It shows wells, pipelines, ports, canals and straits. When one route closes, the analysis moves to the next line on the map: send Saudi crude west to Yanbu, divert Ukrainian grain by rail and river, or wait for another berth at a Black Sea terminal.

That map is necessary. It is also incomplete.

A route is usable only when four conditions hold at once: the infrastructure works; spare capacity exists; an owner and crew accept the voyage; and insurance and contractual permissions remain in force. In the current disruptions around the Strait of Hormuz, Bab el-Mandeb and the Black Sea, the weak link has not always been steel or concrete. Sometimes it has been the commercial willingness to sail.

This is why the Caspian Pipeline Consortium episode deserves attention. Reuters reported repeated suspensions at the terminal, citing safety concerns, a shortage of tankers and shipowner reluctance. The pipeline carries roughly 80% of Kazakhstan’s oil exports, and Kazakhstan’s output fell 14% in July. The infrastructure story and the commercial story cannot be separated — but neither should insurance be assigned all the blame.⁹

Hormuz presents the largest arithmetic constraint. The International Energy Agency estimates that roughly 20 million barrels a day of crude and oil products normally pass through the strait. Available pipeline bypass capacity was only 3.5 million to 5.5 million barrels a day in February. On that estimate, at least 14.5 million barrels a day of the baseline flow could not be moved through those pipelines even at the upper end of available capacity. Current headroom could be different, and it should be measured rather than assumed.¹²

The Saudi East-West Pipeline illustrates how easily gross capacity, export volume and spare capacity become confused. Aramco restored gross pipeline capacity to 7 million barrels a day in April. Roughly 2 million barrels a day can serve refineries on the Red Sea coast, leaving about 5 million barrels a day potentially available for exports. But a January–February average of 770,000 barrels a day refers to crude exports from Yanbu, not pipeline throughput. Comparing the two values creates a false capacity jump.^{13, 14}

Liquefied natural gas has even less room to manoeuvre. The IEA says Qatar and the United Arab Emirates send 93% and 96% of their LNG exports through Hormuz and have no alternative LNG route. For that market, a shipping protocol is not equivalent to a bypass. It is an operating condition for the existing route.¹²

The latest diplomacy is therefore meaningful but incomplete. Iran and Oman have agreed on the coordinates of a possible shipping route. A joint statement was still being drafted on 5 August, with details under discussion. The distinction matters: coordinates identify a lane; they do not set out all security, inspection, liability and enforcement arrangements.⁶

Traffic remains sharply reduced. The Joint Maritime Information Center rated Hormuz SEVERE and Bab el-Mandeb and the southern Red Sea SUBSTANTIAL on 4 August. Reuters reported that public tracking data showed only two commodity vessels crossing Hormuz and one crossing Bab el-Mandeb on 5 August. Those counts exclude vessels sailing without public transponders and can change quickly. They show caution, not a legally or physically complete closure.^{4, 5}

The Black Sea adds a second mechanism. Ukraine’s infrastructure ministry recorded 67 attacks on port infrastructure in July, along with attacks on civilian vessels in ports and the maritime corridor. Ukraine is developing alternative agricultural export routes, but officials expect them initially to replace only 50% to 55% of normal export capacity. More than 30 million metric tons could be at risk if the disruption is not resolved. The condition is essential.^{7, 8}

What insurance evidence does — and does not — show

The marine-insurance market is an obvious transmission channel. The International Union of Marine Insurance has described geopolitical risks as more interconnected and persistent, and said high-risk zones have expanded while capacity has tightened. That is evidence of shared pressure.¹⁰

It is not proof of one global war-risk pool. Policies differ by vessel, cargo, route, duration, insured value, broker, primary carrier and reinsurance programme. A quote for a high-risk tanker cannot be generalised to every vessel, and a percentage of hull value should not be compared with a day rate without translating the units.

Howden Re’s research supplies a further check. It called Hormuz a rare, multi-line stress event, but also reported record primary capacity in marine, energy and terrorism coverage and robust reinsurance capital. The market can be stressed and still have available capital. Both facts belong in the analysis.¹¹

The test for an asset owner is not whether insurance markets are globally connected in the abstract. It is whether the owner’s own exposures converge on the same counterparties and clauses.

A committee-ready test

Start with material portfolio companies and infrastructure holdings. For each route, record cargo volume, ports, vessel types, shipping counterparties, primary insurers, protection-and-indemnity clubs, brokers, known reinsurers, cancellation rights and exclusions. Add the first and second alternative routes, then record the cost and time to activate them.

Next, distinguish four capacities:

• Gross physical capacity: what the infrastructure can carry in ideal conditions.
• Available physical capacity: what remains after existing users and domestic demand.
• Commercial capacity: the owners, crews and vessels willing and able to operate.
• Insurable capacity: coverage available on terms the company can afford and the contract accepts.

Finally, stress simultaneous demand. A portfolio may appear diversified across geography while relying on the same broker, club, reinsurer or financing covenant. Conversely, two exposures may share a headline “war-risk” category but sit in different markets with little direct capital overlap. Only the counterparty data resolve the question.

The investable conclusion

The current evidence supports three claims. First, physical bypass capacity around Hormuz is far smaller than baseline flow. Second, Black Sea operations can be constrained even when infrastructure remains partly available. Third, the insurance market is a possible transmission channel that must be measured at the policy and counterparty level.

It does not support saying that three corridors are already competing for one fixed pool, that the strait is wholly shut, or that falling market volatility proves investors have priced the end of the conflict. Those formulations sound decisive because they remove uncertainty. Good allocator analysis does the opposite: it identifies which uncertainty can be measured next.

Sources

Every numbered marker in this edition links here. Each entry links to the underlying document.

1. Reuters, US stocks close, 4 August 2026
2. Reuters, US stocks close, 5 August 2026
3. Cboe, VIX index data
4. UKMTO / Joint Maritime Information Center, Update 080 advisory note, 4 August 2026 (PDF)
5. Reuters, Gulf shipping traffic down after Houthi tanker claims, 6 August 2026
6. Reuters, Iran and Oman reach understanding on Hormuz route coordinates, 5 August 2026
7. Ministry for Communities and Territories Development of Ukraine, Attacks on transport infrastructure and civilian shipping, 3 August 2026
8. Reuters, Ukraine turns to alternative grain export routes, 4 August 2026
9. Reuters, CPC oil loadings falter over safety issues and tanker shortages, 5 August 2026
10. International Union of Marine Insurance, Geopolitics and war-risk insurance, 9 June 2026
11. Howden Re, Strait of Hormuz: (re)insurance impact, 27 March 2026 (PDF)
12. International Energy Agency, Oil security and emergency response: Strait of Hormuz
13. Reuters, Crude exports from Saudi Arabia's Yanbu port, 24 March 2026
14. Reuters, Saudi Arabia restores full East-West pipeline capacity, 12 April 2026
15. Saudi Aramco, Second-quarter and half-year 2026 results
16. CalSTRS, CalSTRS earns 13.9% net return, exceeds benchmark in fiscal year 2025-26
17. Brookfield Asset Management, Second-quarter 2026 results (PDF)
18. Carlyle, Investor relations
19. Electronic Arts, EA announces completion of acquisition
20. Reuters, Australia's new data centres must be majority renewable powered, 5 August 2026
21. Federal Reserve, FOMC statement, 29 July 2026
22. Federal Reserve, Governor Lisa D. Cook, speech, 5 August 2026
23. Banco Central do Brasil, Copom statements
24. Reuters, India's forex reserves hit three-month peak, 5 August 2026
25. US Securities and Exchange Commission, Rescission of climate-related disclosure rules, File No. S7-2026-19
26. AP7, AP7 opposes SEC proposal to rescind climate disclosure rules
27. S&P Global, Middle East shipping insurance costs rise on Hormuz risks (Marsh), 22 July 2026
28. Lloyd's Market Association, Joint War Committee listed areas guidance