This whitepaper presents a statistical framework showing that East-West crude arbitrage spreads act as leading indicators of physical crude flow allocation, with the strongest relationship emerging 15–45 days after the signal.

Physical crude flow data often confirms market shifts only after the commercial decisions behind them have already been made. This whitepaper introduces a practical framework for closing that gap - testing whether East-versus-West arbitrage spreads can serve as early indicators of where marginal crude barrels will actually clear.