A third Iran-linked tanker has successfully bypassed the U.S. Navy blockade in the Strait of Hormuz, transporting 1 million barrels of crude toward Asia. This development underscores the ongoing challenges in enforcing maritime restrictions against Tehran despite an impending framework agreement scheduled for signing in Geneva on Friday. The shipment follows the passage of two other sanctioned vessels, highlighting Iran's continued ability to move significant volumes of oil through this critical chokepoint.

Data indicates that two sanctioned supertankers owned by the National Iranian Tanker Company, Diona and Hero 2, previously transported a combined 3.8 million barrels of crude. The latest vessel brings the total volume of oil moved past the blockade to nearly five million barrels. These shipments demonstrate Tehran's persistent leverage over global commerce, as the Strait of Hormuz facilitates over a fifth of the world's crude oil supply.

U.S. intelligence agencies have determined that Iran possesses the capability to shut down the strait at will, a strategic asset assessed as more potent than nuclear capabilities in certain contexts. Tehran is reportedly considering an economic "nuclear option" involving the use of Houthis to disrupt shipping through the Bab-el-Mandeb Strait. Iran's capacity to weaponize these maritime routes is supported by an arsenal of missiles, drones, and small, fast boats.

The framework agreement under negotiation aims to de-escalate the conflict by permitting Tehran to resume immediate oil and fuel exports. The U.S. plans to grant sanctions waivers for essential support services, including banking, shipping, and insurance. The deal reportedly includes a proposed $300 billion private investment fund, with over half of the funding already pledged for Iran's energy, logistics, manufacturing, and transport sectors.

A high-ranking U.S. official stated that Iran cannot derive benefits from the agreement unless the Strait of Hormuz remains open and Tehran adheres to the terms. Washington intends to maintain leverage by easing its blockade only gradually, contingent upon the restoration of shipping through the strait. Market reactions were evident in early trading, with WTI crude oil declining 1.30% to $75.22 per barrel and Brent crude trading 0.78% lower at $76.53 per barrel.

President Donald Trump announced on Sunday that a peace deal with the Islamic Republic of Iran is complete, instructing global tankers to prepare for renewed movement through the Strait of Hormuz. In response, Goldman Sachs revised its crude oil price forecasts downward, anticipating a faster normalization of Persian Gulf exports. The bank now projects Brent crude will average $80 a barrel in the fourth quarter of 2026, a reduction from its previous estimate of $90, and $75 across 2027, down from $80. Its forecast for West Texas Intermediate was cut to $75 for the fourth quarter of 2026 and $70 for 2027.

Accelerated Supply Recovery

Goldman Sachs has adjusted its model to reflect Persian Gulf exports returning to pre-war levels by the end of July, rather than the end of August. This one-month acceleration in the supply recovery reduces the fair value of crude by about $10 for the fourth quarter and $5 for 2027. The bank emphasized that oil prices track inventories with a near-linear relationship, meaning a faster return of supply drains the war premium more rapidly, even if the physical flow of barrels has not yet fully materialized.

Current estimates indicate that flows from Persian Gulf countries have increased from less than 30% of normal levels in early March to nearly 50% in mid-June. Volumes through the Strait of Hormuz have risen to approximately 11 million barrels a day. Achieving pre-war levels requires an additional 12 million barrels passing through the chokepoint, which would restore throughput to 70% of pre-war capacity. Goldman noted that capacity is not the bottleneck, estimating that empty tankers within the strait or five days of navigation can load 860 million barrels, sufficient for over 40 days of normal exports.

Price Risks and Market Outlook

Goldman Sachs analyst Daan Struyven characterized the outlook as carrying "two-sided but still net upside price risks." In a bullish scenario where the Strait of Hormuz remains disrupted and Gulf exports recover slowly, Brent could climb above $130 in late 2026 and average $105 in 2027. Conversely, a bearish scenario driven by faster supply growth and persistent demand losses could see Brent average just under $70 in the fourth quarter and just under $60 in 2027.

Struyven cautioned that the recovery remains fragile, highlighting the possibility that Iran could effectively close the Strait again even after re-opening, particularly if detailed nuclear negotiations fail. The bank noted that the 14 million-barrel-per-day reduction in Middle East liquids production represents the sharpest oil supply shock on record. However, the second-quarter global deficit is tracking at a smaller 5 million barrels per day due to flexible demand, notably from China. Looking ahead, Goldman expects a large surplus of 3.2 million barrels per day in 2027 but forecasts resilient prices supported by a structural global stockpiling trend exceeding 1 million barrels per day and a security premium.

Market Reaction

The revised forecast coincided with a decline in crude prices on Tuesday. Brent fell approximately 4% to trade near $80 a barrel, while West Texas Intermediate dropped to $77, marking the lowest levels for both benchmarks in over three months. Trump stated over the weekend that oil "will flow" through the Strait of Hormuz once the deal is signed on Friday. Oil-tracking funds reflected the market pressure, with the United States Oil Fund LP (NYSE: USO) and the United States Brent Oil Fund LP (NYSE: BNO) both moving lower. The Energy Select Sector SPDR Fund (NYSE: XLE) was the worst-performing sector on Monday, falling 3.5%, and declined an additional 0.8% during Tuesday's premarket trading.