Three Iranian tankers, Diona, Hero II, and Sonia I, all owned by the US-sanctioned National Iranian Tanker Company, have successfully passed the US blockade line in the Gulf of Oman, carrying a combined total of 3.8 million barrels of crude oil. These voyages mark Iran's first crude oil exports in two months, with Diona broadcasting its location just past the blockade yesterday, and Hero II and Sonia I leaving Iran's Chabahar port on Tuesday despite the ongoing US naval presence.

The progress of these tankers comes just two days before negotiations between the US and Iran are set to begin in Switzerland to finalize a peace deal. The framework agreement, reportedly signed electronically by US and Iranian officials, is expected to include the immediate lifting of sanctions on Iranian oil sales, along with related banking, transportation, and insurance services. This development has already influenced global oil markets, with Brent crude futures dropping to $78.74 a barrel and West Texas Intermediate to $75.85 a barrel due to optimism about increased supply.

The potential reopening of the Strait of Hormuz, a crucial waterway handling 20% of global oil and liquefied natural gas flows, is also prompting significant activity among other shipping vessels. Ship-tracking data shows two oil tankers, Suezmax Kapodistrias 21 and Very Large Crude Carrier Coslucky Lake, rerouting to Fujairah in the United Arab Emirates after initially heading towards Africa. Additionally, Qatar is bringing some of its LNG tankers back to the Middle East, preparing for increased exports once the Strait officially reopens. The US-Iran memorandum of understanding extends a ceasefire by 60 days, during which Iran has committed to clearing mines from the Strait within 30 days, aiming for free navigation for all vessels.