A look at how the Middle East stand-off has driven crude and feedstock prices through a sharp climb, a summer correction, and a fresh spike while downstream demand has barely moved.

A Market Held Hostage by Headlines

The petrochemical complex right now can be explained by supply and demand fundamentals alone. Crude oil and its downstream feedstocks have spent the last three months tracking the temperature of the Middle East conflict far more closely than they have tracked plant run rates, freight availability, or actual buying interest from converters. That single dependency has made planning unusually difficult for producers who normally build their quarter around feedstock cost assumptions that hold for weeks, not days.

Brent and WTI settlements since mid-May. Prices eased through late May and early June as tensions appeared to cool, dropped to the low seventies by late June, then reversed hard once the US–Iran standoff flared again in mid-July, briefly touching the century mark before easing back into the mid-eighties by early August.

Feedstocks: A Round Trip with a Sting in the Tail

Naphtha, benzene, and ethylene all followed a similar shape across the four snapshot dates tracked here: a firm but orderly climb into late June, a sharp jump through July 23 as the conflict escalated, and a partial pullback by month-end that left every benchmark well above where it started the year. Naphtha into North-West Europe moved from roughly 511 to a peak near $765 per ton before settling near $742. Rotterdam benzene climbed from $889 per ton toward $1,373 per ton before easing to about $1,240 per ton and US Gulf ethylene nearly rebased itself, ending the period some 42 per cent above its January level even after the late correction.

What stands out is not just the size of the move but its abruptness. The bulk of the July increase landed inside a single three-to-four-week window, which left very little time for buyers to hedge or for producers to reprice contracts in an orderly way.

Indexed Moves: Everyone Rose, not Everyone Rose Equally

Europe’s naphtha market ran hottest in percentage terms through June, while by the July peak it was US Gulf ethylene and Rotterdam benzene that carried the largest cumulative gains a reminder that a single “feedstock cost” narrative hides meaningful regional divergence.

Why Higher Costs are not Buying Better Margins

Ordinarily, a run-up in feedstock prices signals a tighter market and gives producers room to pass costs through. That has not been the case this cycle. Downstream demand across major polymer and aromatics-consuming sectors has stayed soft, so converters have resisted absorbing the full feedstock increase into finished product prices. The result is a classic cost-price squeeze: input costs move first and fastest, while realizable selling prices lag, compressing the spread that actually determines producer profitability.

This disconnect also creates a second, less visible risk around inventory. Producers who built stock at the elevated July feedstock levels are now exposed if crude and feedstocks continue easing, they may be forced to sell material made from expensive naphtha or benzene into a market that has already reset lower, realizing a loss on inventory rather than a margin on production.

Two Paths from Here

If tensions persist, feedstock costs stay structurally elevated. Producers without pricing power keep absorbing cost inflation, and margins stay compressed for as long as demand fails to firm up alongside costs.

If tensions ease crude and feedstocks retreat toward pre-escalation levels. Relief on input costs is welcome, but anyone holding inventory bought at peak prices faces a mark-down as the market resets beneath their cost basis.

Ethylene Export Market (2025)

South Korea dominated global ethylene exports in 2025 with a 30 per cent share, supported by its large integrated petrochemical complexes and export-oriented production. The Netherlands (14%) and the United States (10%) followed, benefiting from strategic trading hubs and cost-competitive feedstock. Japan (9%) and the United Kingdom (8%) also remained significant suppliers, while Singapore, Belgium, Germany, and Malaysia together accounted for 18 per cent of exports. The remaining 11 per cent was distributed among other exporting countries, highlighting a relatively concentrated global export market.

Benzene Export Market (2025)

South Korea was also the leading benzene exporter in 2025, accounting for 31 per cent of global exports. India ranked second with a 14 per cent share, reflecting its growing refining and aromatics production capacity. The Netherlands (10%) and Japan (7%) remained key exporters, while Brunei Darussalam (6%), Thailand (5%), Germany (4%), Singapore (3%), and Malaysia (3%) contributed additional volumes. The remaining 18 per cent of exports came from other countries, indicating a more diversified export landscape compared with ethylene.

What Decides Profitability Now

With crude no longer a clean proxy for margin direction, five other levers are doing more of the work this half:

Feedstock-to-product spreads, tracked by grade and route rather than assumed from a single benchmark

Inventory positioning, how much was bought, at what price, and how quickly it turns

Freight and logistics costs, which have become a larger share of landed cost as routings adjust around risk zones

Regional supply-demand balances, which are diverging faster than the headline crude price suggests

End-user demand strength, still the binding constraint on how much of any cost increase can be passed through