Iran's New Leader Makes Hormuz Closure Official Policy as Oil Breaks $100
Iran's newly installed supreme leader used his first public address to vow that the Strait of Hormuz would remain closed, per NPR (12 March 2026) — a significant political escalation beyond the operational attacks covered in the previous brief. The Islamic Revolutionary Guard Corps separately issued a public statement warning that oil prices could surge to $200 per barrel if regional insecurity continues, per BBC (12 March, 20:49 UTC). Former IMF chief economist Olivier Blanchard argued that Iran holds structural incentives to keep threatening shipping and that markets cannot rely on political de-escalation, per Business Insider (12 March, 20:10 UTC).
Brent crude settled at $100.46 per barrel, up 9.2%, and WTI settled at $95.70 per barrel, up 9.7% — both at their highest levels since August 2022, per The Detroit News (12 March, 20:16 UTC). Iraq halted operations at all of its oil export terminals following strikes on tankers in its waters, per NBC News (12 March, 20:58 UTC), representing a complete cessation of Iraqi export operations. Oman also evacuated its Mina Al Fahal terminal, per NBC News (12 March, 20:58 UTC).
The U.S. position on naval escorts has shifted: Treasury Secretary Bessent and Energy Secretary Wright both indicated the Navy will escort tankers through the Strait "as soon as it is militarily possible", per CNBC (12 March, 19:05 UTC) — a reversal of the prior confirmed refusal to escort. However, a U.S. official separately told Al Jazeera (12 March, 15:34 UTC) that the military is "not ready" to conduct tanker escorts at this time. S&P Global Energy assessed that the market will remain unbalanced until the Strait reopens and upstream and downstream operations return to normal, per The Detroit News (12 March, 20:16 UTC).
Brent settling above $100 per barrel — even in the face of the largest emergency reserve release in IEA history — confirms what the previous brief flagged as a structural supply hole that short-duration buffers simply cannot fill. Critically, markets closed higher rather than pulling back after the reserve announcement, signalling that participants are pricing the expected duration of the disruption, not just its immediate volume impact.
With Iraq's terminals now fully halted and Oman evacuating its key export facility, the effective daily supply loss has widened materially since the prior brief — and that is before accounting for any further Hormuz escalation.
The new supreme leader's choice to make Hormuz closure the centrepiece of his first public address changes the calculus fundamentally. This is no longer a battlefield tactic that could quietly be walked back at the negotiating table — it is a declared state policy commitment of Iran's incoming leadership. Simultaneously, the U.S. admission that naval escorts are not yet operationally feasible, despite optimistic public statements from senior cabinet officials, leaves a visible gap between signalled intent and actual deterrence capacity — a gap that the market has already moved to price in. Analyst forecasts cited in today's reporting range from $130 to $200 per barrel should the conflict extend to six months.