Satellites Catch It Live: U.S. Navy Turning Iranian Tankers Around as Hormuz Blockade Tightens

Satellites Catch It Live: U.S. Navy Turning Iranian Tankers Around as Hormuz Blockade Tightens

Satellite imagery reviewed by http://TankerTrackers.com shows ships departing Iran being intercepted and redirected by the U.S. Navy, with CENTCOM confirming 37 vessels have been turned back since the Hormuz blockade began April 13.

The most high-profile intercept: M/V Sevan, part of Iran’s sanctioned “shadow fleet,” was stopped in the Arabian Sea Saturday by a U.S. Navy helicopter from destroyer USS Pinckney (DDG 91). The vessel is now “complying with U.S. military direction to turn back to Iran under escort”.

CENTCOM says U.S. forces “continue to enforce U.S. sanctions and fully implement the blockade against ships entering or departing Iranian ports”. At least three Iranian-flagged tankers were intercepted in Asian waters and diverted away from India, Malaysia and Sri Lanka. M/V Sevan was among 19 “shadow fleet” vessels sanctioned by Treasury for transporting billions of dollars worth of Iranian energy products, including oil, gas, propane, and butane. Owned by Dubai-based Anka Energy & Logistics Co., the ship was tracked approaching the Strait of Hormuz before USS Pinckney forced it to retreat. CENTCOM posted footage of the intercept, calling it a “significant escalation” in efforts to choke off Tehran’s illicit energy exports. Since April 13, U.S. forces have directed 31 vessels to turn around or return to port. Two other Iranian-flagged tankers, Hero II and Hedy, are currently anchored in Chah Bahar after being intercepted earlier this week. CENTCOM pushed back on media reports they broke through, calling them “inaccurate”. Despite the blockade, Sentinel-1 satellite images from Monday show a VLCC capable of hauling ∼2M barrels moored at Kharg Island’s jetty, with 13 vessels anchored east of the island — double the number seen before April 13. Iran loaded the equivalent of 4.6M barrels at crude terminals, with another 4M barrels that “appear to have exfiltrated US blockade line”.

President Trump ordered the Navy to open fire on ships mining the strait and didn’t rule out limited military strikes after Iran closed Hormuz Feb. 28. The U.S. began the blockade April 13 to lock down Iran’s oil trade and force Tehran back to negotiations. Germany is deploying specialized ships closer to Hormuz for post-war demeaning. Treasury last week sanctioned 19 vessels for transporting Iranian crude, LPG, and petrochemicals under Panama, Hong Kong, and Barbados flags. Iran’s response has been to turn off AIS, use ship-to-ship transfers at the East OPL off Malaysia, and send false AIS signals. At least 679 STS transfers took place in the EOPL in 2025, up from 280 in 2023. Iranian tankers also spoof AIS to take over the identity of other vessels.

Banking with Billy: Trading the Blockade in Real Time. This war is priced by satellite pass and destroyer intercept.CENTCOM says 37 vessels turned back. Tanker trackers says 4.6M barrels loaded anyway. Both are true — and the spread between them is your P&L.

-37 turned around = $7.7B not sold: Each NITC VLCC holds ∼2M barrels. At $104 Brent, 37 ships is $7.7B in revenue Tehran didn’t book. The Sevan alone was tied to “billions” in illicit flows. That’s why ten NITC tankers are now anchored off Chabahar as floating storage. Iran can pump, but it can’t sell if USS Pinckney’s help is overhead. The longer they float, the more Tehran bleeds cash and needs a deal.

-It shows 4M barrels slipped past the blockade line. Lloyd’s List counts 26 Iran-linked ships that appear to have bypassed it since April 13. The market’s pricing that leakage. When CENTCOM says “fully implement” and satellites show VLCCs loading at Kharg, vol stays bid. Trade the gap: more intercepts = crude lower. More Kharg loadings = crude higher.

Traders are using Sentinel-2 to count VLCCs at Kharg. Empty jetty = blockade working = bullish crude. 13 ships anchored = supply building = bearish. The Sevan video dropping on X moved Brent $1 in 10 minutes. In 2026, http://TankerTrackers.com is the new API inventory report. If you’re not watching satellite feeds, you’re trading blind.

— Treasury keeps adding IMO numbers to the SDN list. The 19 “shadow fleet” ships sanctioned last week include Sevan. Expect CENTCOM to post more helo footage as they ID ships via satellite.

— Treasury sanctioned Chinese refinery Hengli Petrochemical for buying Iranian crude. If Beijing keeps taking 1M bpd of discounted oil, more tankers risk the Pinckney treatment. If it stops, those 13 VLCCs at Kharg stay full and Iran’s leverage drops. With hundreds of ships stranded inside the Gulf and 20,000 seafarers at risk, the IMO warns of serious accidents. A collision involving a dark, sanctioned VLCC would spike war risk premiums from 0.5% to 2% of hull value overnight. That’s $2M per trip for a VLCC.

Billy concluded that the U.S. The Navy is running a $7.7B revenue denial campaign, one helo intercept at a time. 37 ships turned back, Sevan going home, ten NITC tankers at anchor. But it’s leaking: 4M barrels got out, 13 VLCCs are loading, and China’s still buying.

For oil: Brent lives in the gap between CENTCOM’s press releases and TankerTrackers’ satellite count. When the images show empty water at Kharg, buy. When they show a VLCC on the jetty, sell.

For Iran: You can load all the tankers you want. If they end up back in Chabahar under the U.S. Navy escort, you just built the world’s most expensive parking lot.

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