The one-month rolling correlation between front-month West Texas Intermediate crude and the 10-year Treasury yield has climbed to 0.96, the strongest positive relationship since June 2019, according to BMO Capital Markets. This tight relationship means further oil price increases could reverberate across financial markets through higher inflation expectations, elevated Treasury yields, and steep borrowing costs, potentially keeping the Federal Reserve's monetary policy tighter for longer. Analysts warn that this could lead to a bond bear market and further rate hikes, unsettling the stock market.