Oil Trading Glossary

Crude and refined product trading terms explained: contango, backwardation, crack spread, arbitrage, differentials and benchmarks.

The terms used most often across crude and refined product desks.

Benchmarks and differentials

Brent, WTI and Dubai are the principal crude benchmarks. Physical grades trade at a differential to a benchmark reflecting quality and location.

Refined products price against regional assessments such as Northwest Europe barges, Mediterranean cargoes, Singapore quotes and US Gulf pipeline values.

Market structure

Contango — forward prices above prompt, which rewards storage.

Backwardation — prompt above forward, which rewards prompt supply and discourages inventory.

Crack spread — the margin between crude cost and product value, the core refining economics indicator.

Trade flows

Arbitrage — moving a cargo between regions when the price difference exceeds freight and financing costs.

Ton-mile demand — cargo volume multiplied by distance, the key driver of tanker freight.

Floating storage — cargo held on vessels, usually economic only in deep contango.

Execution

Laycan — the agreed loading window. Laytime and demurrage govern time allowed in port and compensation for delay.

Worldscale — the freight rate index used for tanker voyage charters.

Pricing period — the days over which the contract price is averaged, often around the bill of lading date.