Delaware · Updated May 8, 2026
Delaware Home Heating Oil Prices
Today's average retail heating oil price in Delaware is $5.91/gallon — 33 cents above the Northeast average of $5.58/gal. Lowest price today: $5.86/gal in Newark.
Delaware Heating Oil Prices by City
| City | Price / gallon | vs State avg | Dealers | Updated | |
|---|---|---|---|---|---|
| Lowest Newark | $5.86 | 5¢ below | May 8 | Details → | |
| Wilmington | $5.95 | +4¢ above | May 8 | Details → | |
| Middletown | $5.95 | +4¢ above | May 8 | Details → | |
| Smyrna | $5.96 | +5¢ above | May 8 | Details → | |
| Dover | $5.98 | +7¢ above | May 8 | Details → |
About Heating Oil in Delaware
How much does Delaware use?
Approximately 90,000 homes in Delaware use heating oil as their primary heat source. The average Delaware home uses about 750 gallons per heating season (Oct–Apr). At today's price of $5.91/gal, that's an estimated annual heating cost of $4,433.
How to save on heating oil in Delaware
The best way to save is to compare at least 3 local dealers before ordering — prices between dealers in the same area can vary 10–20 cents per gallon. Buying in the off-season (May–August) when prices are typically lowest, or signing a price cap contract in spring, can also save 15–25 cents per gallon. Set a price alert to be notified when prices drop to your target.
Where does this data come from?
Delaware heating oil prices are sourced from the U.S. Energy Information Administration's weekly residential heating oil survey. The EIA surveys heating oil dealers across Delaware weekly during the heating season and monthly in the off-season. City-level prices reflect the state average with small adjustments for local market conditions. Prices are updated daily on this site.