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Latest value: 596.87¢/gal for September 2026, +66.2% year over year (against September 2025). 201 monthly observations from January 2010 to September 2026, in cents per gallon. EIA Short-Term Energy Outlook forecast (released October 2026): 405.26¢/gal for December 2027; the figures above are history only. Source: EIA Oil (EIA route); context series, not an input to the Nowflation CPI Gauge.
| Period | Value |
|---|---|
| September 2026 | 596.87¢/gal |
| August 2026 | 514.5¢/gal |
| July 2026 | 479.9¢/gal |
| June 2026 | 471.3¢/gal |
| May 2026 | 529.3¢/gal |
| April 2026 | 529.1¢/gal |
| March 2026 | 504.5¢/gal |
| February 2026 | 399¢/gal |
| January 2026 | 357.9¢/gal |
| December 2025 | 366¢/gal |
| November 2025 | 372.7¢/gal |
| October 2025 | 365.95¢/gal |
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Cite: Nowflation, “STEO — Residential heating oil price incl. taxes, US average (STEO path)” (eia_steo_d2rcaus), data from EIA Oil, retrieved October 18, 2026, https://nowflation.com/series/eia_steo_d2rcaus. The series at its source: EIA Oil.
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