Propylene oxide and other tight product markets did the heavy lifting this quarter.

LyondellBasell’s second quarter sales rose to $9.2 billion, up 19.8% year over year, and operating income rocketed to $1.5 billion from $285 million a year earlier. That lifted the operating margin to 16.8% from 3.7%, while the cash pile increased to $2.6 billion.

"This increase was primarily driven by higher average sales prices across many products, which reflected industry-wide supply constraints stemming from the conflict in the Middle East and contributed to higher revenues by 33%."

10-Q 2026-07-31

LyondellBasell says the headline numbers are price-driven: across-product selling prices rose as the market tightened. Put plainly, the company billed more per ton, and that spread flowed straight to the bottom line.

A product-level squeeze amplified the effect.

"Second quarter of 2026 versus first quarter of 2026—Higher demand for catalysts accounted for approximately half of the increase in EBITDA, while the remaining increase was driven by higher licensing results as a greater number of higher-value contracts reached significant milestones."

10-Q 2026-07-31

The filing points to two distinct engines: stronger margins on propylene oxide and derivatives where demand outpaced available supply, and timing on licensing milestones. That combo inflates EBITDA without a commensurate jump in underlying volume.

The company also trimmed the cost side and the balance sheet: capital spending fell sharply year over year, down 47.3%, inventory was 10.7% lower, and free cash flow margin improved by 7.8 percentage points. Management credits a cash improvement plan for about $38 million of lower SG&A in the first half. Those moves helped convert higher accounting earnings into real cash.

Not every line moved in the same direction. LyondellBasell notes a jump in cost of sales tied to higher feedstock costs, and the quarter reflects a 5% revenue hit from divesting certain European assets. So the revenue and margin gains came despite one-off disposals and higher raw-material bills, not because of them.

That mix, the price lift from regional supply disruption plus product-specific tightness and the timing of licensing milestones, creates the filing’s central tension. The company posted a much stronger, cash-positive quarter, but the filing names transient market forces (regional supply constraints and milestone timing) as the primary drivers rather than durable volume gains.

Investors can see the shape of that tension in two places: product-level margins and licensing recognition. The next quarterly filing that breaks out product volumes and average selling prices for propylene oxide, catalysts volumes, and licensing revenue would show whether those price and timing effects repeat next quarter or were concentrated in this reporting period.

Figures and quotes from LyondellBasell 10-Q filed July 31, 2026.