**Elevated energy prices from Middle East tensions, persistent fiscal deficits, and heavy Treasury supply have pushed the 30-year yield to multiyear highs near 5.67% in early October 2026 before easing to around 5.56–5.60% by mid-month.** Oil above $100 per barrel has amplified inflation concerns, lifting the term premium as investors demand greater compensation for long-duration risk amid robust nominal GDP growth and elevated government borrowing. The recent Fed rate hike and signals of further tightening have reinforced “higher for longer” expectations, while strong corporate issuance tied to AI infrastructure adds hedging pressure. Key upcoming releases—including CPI, jobs data, and any additional FOMC communications—could shift the path of long-end yields through October. Market-implied odds reflect trader consensus on these supply, inflation, and policy dynamics.