Hormuz Outcomes: Tolling Equilibrium Vs Disruption
Sources: 1 • Confidence: Medium • Updated: 2026-04-02 03:48
Key takeaways
- Seizure of Kharg Island or expanded strikes on energy infrastructure are key escalation triggers that would likely reverse any shipping normalization.
- Middle East conflict dynamics could intersect with the Russia-Ukraine war through energy infrastructure attacks and Gulf-state security or technology cooperation.
- Markets and the economy are highly sensitive to whether Trump’s April 1 speech signals escalation (including attacks on Iranian oil infrastructure) or a declared victory and exit.
- In 2021–2022 Saudi Arabia and Iran moved toward negotiations in a context where the U.S. was less engaged, and Western media reported that China played a role.
- Even if de-escalation is the base case, downside outcomes are non-linear such that a 20–35% escalation probability can dominate risk decisions.
Sections
Hormuz Outcomes: Tolling Equilibrium Vs Disruption
- Seizure of Kharg Island or expanded strikes on energy infrastructure are key escalation triggers that would likely reverse any shipping normalization.
- An Iran-run Hormuz tolling system would either create chronic uncertainty and selective coercion or incentivize Iran to keep the strait open.
- Saudi Arabia and the UAE could spoil an Iran-tolling equilibrium by threatening to shut down their own oil exports rather than accept Iranian control of Hormuz.
- Iran can use a plausibly deniable proxy-style approach to claim it is targeting Israeli-linked shipping while avoiding broad disruption of global trade.
- A higher-risk Hormuz scenario becomes more plausible if Iran enters fragmented authority such that factions intermittently attack large crude carriers without coherent state control.
- A plausible de-escalation endpoint is that the U.S. declares victory and pulls back while Iran establishes a tolling regime over the Strait of Hormuz that normalizes shipping.
Cross-Theater Linkage Via Energy Infrastructure Targeting (Ukraine–Russia–Middle East)
- Middle East conflict dynamics could intersect with the Russia-Ukraine war through energy infrastructure attacks and Gulf-state security or technology cooperation.
- Ukraine is pursuing its interests by striking Russian oil export facilities, which can raise oil prices even if that conflicts with some European and U.S. preferences.
- If Russian oil exports were severely curtailed, Russia could become more desperate and consider escalatory actions it has not taken so far.
- A plausible endpoint is that Persian Gulf energy flows stabilize with Iran effectively tolling transit in yuan while Russian oil exports could be driven to zero by Ukrainian action.
- Ukraine is expected to intensify drone strikes against Russian energy infrastructure, reducing prior restraint driven by concern about Western backers.
- If the U.S. de-escalates in the Gulf, the main residual geopolitical-economic risk could shift to Ukraine expanding attacks on Russian energy supply to force attention and leverage.
U.S. Signaling, Alliance Posture, And Implementation Constraints
- Markets and the economy are highly sensitive to whether Trump’s April 1 speech signals escalation (including attacks on Iranian oil infrastructure) or a declared victory and exit.
- The suggested Trump-era approach substitutes sustained hegemony with short, high-intensity uses of force to achieve objectives, with outcomes varying by execution quality.
- Even if the U.S. stops providing security for Hormuz, it retains the capability to shut the chokepoint down, so security provision can change without eliminating U.S. denial capability.
- Trump may announce a move to exit or effectively downgrade U.S. participation in NATO as a diversion from Iran.
- If the U.S. accepts a multipolar world, it may further withdraw from hegemonic sea-lane functions in the Gulf, potentially including pulling major forces such as the Fifth Fleet and air assets.
- A formal U.S. withdrawal from NATO would require a congressional vote, so a claimed U.S. 'exit' would likely be implemented via informal measures such as troop movements or a 'pause'.
Multipolar Patron Substitution And Third-Party Constraints
- In 2021–2022 Saudi Arabia and Iran moved toward negotiations in a context where the U.S. was less engaged, and Western media reported that China played a role.
- Iran runs a trade deficit with China despite being a major crude supplier to China, implying Iranian dependence on Chinese manufactured inputs.
- Iran is unlikely to materially block Persian Gulf oil flows to major Asian buyers because China and India would exert decisive leverage to keep shipping open.
- If the U.S. reduces its Middle East role, China is likely to assume more of the security-patron function because global powers share an interest in keeping vital commodities and transit routes open.
- China is not portrayed as welcoming major Middle East escalation because a global recession and export disruption could trigger severe unemployment and domestic unrest in China.
Non-Linear Tail Risk And Market Decoupling From Politics
- Even if de-escalation is the base case, downside outcomes are non-linear such that a 20–35% escalation probability can dominate risk decisions.
- Recent crises became economically 'over' before they were politically over, as markets looked past ongoing casualties.
- Jacob Shapiro assigns roughly a 30–40% chance that Trump escalates rather than de-escalates, potentially including seizing Kharg Island and striking energy infrastructure.
- A plausible worst-case path is that conflict persists for weeks, producing physical energy and petrochemical shortages and increased escalation risk.
Watchlist
- Seizure of Kharg Island or expanded strikes on energy infrastructure are key escalation triggers that would likely reverse any shipping normalization.
- Middle East conflict dynamics could intersect with the Russia-Ukraine war through energy infrastructure attacks and Gulf-state security or technology cooperation.
- Markets and the economy are highly sensitive to whether Trump’s April 1 speech signals escalation (including attacks on Iranian oil infrastructure) or a declared victory and exit.
Unknowns
- Did the reported Dubai port tanker attack occur as described, and what were the operational and attribution details?
- What is the current, measured level of tanker transits through Hormuz relative to pre-conflict baselines, and how are war-risk premiums changing?
- Is a Hormuz tolling/fee regime actually being proposed or operationalized, and if so, what are the rules (who pays, enforcement, exemptions, dispute resolution)?
- Which specific actions (if any) are taken around Kharg Island or broader energy infrastructure, and by whom?
- What did Trump’s April 1 speech concretely commit to in operational terms (targets, timelines, force posture), and what follow-on DoD/State actions occurred?