Global Market Analysis
Crack in the Chain: Refiners Profit From the Bottleneck as Chemicals Carry the Cost
Key Findings
- General Thoughts: Refining bottlenecks are converting today’s energy shock into cash, while chemical overcapacity is making the same shock an early test of which assets still merit reinvestment.
- Supply Chain/Commodities: US spot benzene has outrun the estimated September contract, leaving downstream margins exposed to another cost step-up if elevated merchant prices persist through the next settlement cycle.
- Energy/Upstream: Today’s natural gas spread will influence tomorrow’s capacity map as companies keep investing in assets that can earn through another cycle and stop extending the life of weaker plants.
- Sustainability/Energy Transition: A wider gasoline-to-ethanol spread strengthens blending economics, but corn procurement and RIN treatment will determine which producers convert fuel demand to durable cash margins.
- Downstream/Other Chemicals: The widening US-China inflation gap masks a deeper shift as Chinese industry absorbs energy costs through margins, and higher capital costs make advantaged capacity harder to replicate.
Exhibit 1: Refining Bottlenecks Capture Value as Ethylene Overcapacity Limits Global Chemical Margin Recovery.

Source: Bloomberg, C-MACC Analysis, September 2026
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