IRGC Authorizes 15 Ships Through Hormuz Corridors; Dual US-Iranian Navigation Lane System Active; Brent Surges to ~$97/bbl — Day 94

The IRGC Navy confirmed on June 1, 2026 (Day 94) that 15 vessels — including 4 oil tankers — crossed the Strait of Hormuz in the preceding 24 hours 'in coordination with and under the security coverage of the IRGC Navy.' Ships were required to obtain advance IRGC authorization codes and were escorted by IRGC patrol boats through the narrowest section of the strait. The IRGC issued a warning that any cooperation with 'hostile extra-regional forces' (i.e. CENTCOM) would be deemed an 'imminent security threat.' Fortune reported on June 1 that the strait had effectively bifurcated into two competing navigation systems: an IRGC-controlled mandatory corridor with advance authorization requirements, and a US-guided route hugging Oman's coast through which CENTCOM had navigated approximately 70 ships over three weeks while officially describing its role as 'navigational guidance' rather than formal escorts. The dual-lane system highlighted the extent to which de facto shared management of the strait was replacing the pre-crisis US-only freedom-of-navigation framework. Brent crude surged approximately 7% on Day 94 — from ~$94/bbl to ~$97–100/bbl — driven by Iran's simultaneous announcement halting US-Iran negotiations and threatening to fully close the strait if Israel did not withdraw from Lebanon.