International crude oil prices have fallen nearly 16% in a single month, yet tankers are still queuing at the Strait of Hormuz. After the US-Iran 60-day ceasefire took effect, the daily number of vessels transiting the strait remains below 60% of pre-conflict levels, with an estimated 120 million barrels of crude and refined products stuck in the area. For the textile industry, this sends a mixed signal: short-term pressure on chemical fiber costs is easing, but underlying supply chain risks are far from resolved.
The Slow Lane of Oil-to-Fiber Transmission
Crude oil is the starting point of the polyester chain. WTI has fallen to around $73/barrel, with Brent at $76.85, directly lowering cost expectations for PX, PTA, and downstream polyester filament and staple fiber. The 1% single-day drop on June 23 may seem mild, but the cumulative 16% decline throughout June means that price pressure from refineries to polyester plants is rapidly shrinking.
However, this price correction feels more like an emotional release. Multiple analysts, including Bloomberg Intelligence's Lee Klaskow, point out that the 60-day truce is inherently fragile, with deep disputes unresolved. Any new attack or diplomatic escalation in the strait could quickly rebuild the risk premium. In other words, the current window of lower feedstock costs may be very short.
Shipping Gridlock: The Underestimated Inventory Digestion Problem
Even as the waterway partially reopens, real shipping bottlenecks remain severe. As of June 23, 162 laden tankers with trackable AIS signals were stuck in and around the strait, carrying about 120 million barrels of crude. Critically, many Iran-linked vessels and smaller product tankers have turned off their AIS signals, becoming 'dark ships' — meaning the actual backlog is likely much larger.
Shipowner strategies are cautious. War risk insurance premiums, though down from peak crisis levels, remain at 1% of vessel hull value — 10 times the pre-conflict rate of 0.1%. For a VLCC, a single transit of the strait costs $2 million in war risk insurance. Some smaller owners choose to reroute via the Cape of Good Hope, adding fuel and labor costs. Major shipping lines are only testing with a few vessels, unwilling to commit large fleet capacity to the Persian Gulf.
This 'can go but dare not, want to go but queue' gridlock means the accumulated crude cannot quickly flow into the market. For Chinese chemical fiber plants relying on imported naphtha or PX, actual feedstock arrival times may be extended, and periodic supply tightness remains a risk.
Practical Impact for Textile Procurement
Down the chain, the short-term benefit of lower oil prices is mainly seen in expanded bargaining room for polyester feedstocks. Since June, PTA spot prices have fallen about 10% in step with crude, and offers for POY and FDY have softened. For fabric and garment buyers, this is a window — but one that may close faster than expected.
