The Energy Bakery: Understanding Complex Correlation

Key Takeaways

1. 1The energy complex — crude oil, natural gas, heating oil, and refined gasoline — moves together through shared supply disruptions, refinery linkages, and demand cycles
2. 2WTI crude and heating oil historically correlate at +0.75 to +0.85, one of the tightest relationships in commodity markets, because heating oil is a direct crude refinery output
3. 3Crude-to-natural gas correlation is weaker at +0.40 to +0.60 — natural gas has independent supply sources (shale, LNG imports) and distinct seasonal demand drivers
4. 4During financial crises, all energy commodities move in lockstep with correlations approaching +0.95 as broad risk-off selling overrides individual fundamentals
5. 5Major geopolitical supply disruptions — like the 2022 Ukraine invasion — push crude, heating oil, gasoline, and natural gas upward simultaneously, tightening all correlations
6. 6Refinery outages can flip correlations negative: a major refinery going offline reduces heating oil and gasoline supply while crude demand from that refinery also falls — refined products rise as crude softens
7. 7Seasonal patterns shift the dominant relationships: winter strengthens the heating oil-crude link; summer emphasises gasoline-crude; natural gas disconnects most in mild-weather shoulder months
8. 8Regional disconnects matter — WTI and Brent can decouple on pipeline constraints; LNG export growth is gradually tightening the previously loose global natural gas-crude correlation
9. 9Traders exploit correlation breakdowns through crack spread convergence trades and divergence positioning — betting on the spread between crude and its refined products normalising
10. 10Sophisticated risk models adjust correlation assumptions seasonally rather than assuming static historical relationships — static assumptions consistently misfire at market turning points