Understanding the WTI-Brent Spread: Why Two Oil Prices Exist

March 26, 2026

If you follow oil prices, you've noticed two numbers: WTI (West Texas Intermediate) and Brent Crude. Both are benchmarks for global oil pricing, but they serve different markets and often diverge significantly.

What Each Benchmark Represents

WTI: Delivered at Cushing, Oklahoma - the pipeline crossroads of North America. Primarily reflects US domestic supply-demand balance. Lighter and sweeter (less sulfur) than Brent, making it slightly cheaper to refine.

Brent: Priced off North Sea production and delivered into the global seaborne market. The de facto international benchmark, used to price roughly 65% of global oil trades. Reflects global supply-demand dynamics.

Why the Spread Fluctuates

Infrastructure constraints: When Cushing storage fills up (as happened in 2020), WTI drops relative to Brent because landlocked US crude has nowhere to go. Pipeline and export terminal capacity directly impacts the spread.

Geopolitical risk premium: Middle East tensions affect Brent more directly because seaborne crude faces disruption risk (Strait of Hormuz, Red Sea). US inland production faces no such risk, so WTI stays relatively stable.

Quality differential: WTI's lighter, sweeter quality commands a refining premium, but this is offset by transportation costs to reach export terminals.

Trading the Spread

The WTI-Brent spread typically ranges from -$5 to +$5. Extremes signal structural imbalances. A widening spread (Brent >> WTI) often indicates global supply concerns or US oversupply. A narrowing or inverting spread suggests US export infrastructure is keeping pace with production growth.

Track real-time WTI and Brent prices on OilPri's dashboard to monitor spread dynamics alongside fundamental supply-demand data.