The best time to buy heating oil is typically during the late spring or early fall, when prices are generally lower due to decreased demand, allowing homeowners to stock up before the winter months.
Heating oil prices fluctuate throughout the year, and timing your purchase right can save you hundreds of dollars. While many factors influence pricing, understanding seasonal trends and market patterns will help you secure the best deal.

When Are Heating Oil Prices Lowest?
Historically, heating oil costs drop during warmer months when demand is lowest. Suppliers often offer discounts to encourage early purchases before winter arrives.
Summer Months (June-August)
June through August typically offers the lowest prices. With no immediate need for heating, demand plummets, and suppliers compete for business. According to The Energy Experts, summer purchases can save 20-30% compared to winter rates.
Early Fall (September-October)
Prices begin rising in September but often remain below winter levels. Connecticut data analyzed by WTNH shows September frequently has the lowest fall prices before the seasonal spike.

Worst Times to Buy Heating Oil
These periods typically see the highest prices:
- December-February: Peak demand drives prices up
- Cold snaps: Unexpected cold weather causes price surges
- Early spring: Depleted reserves keep prices elevated
Regional Price Variations
While summer is generally cheapest nationwide, local factors can influence timing:
Region | Best Month | Price Difference |
---|---|---|
Northeast | July | 25-35% savings |
Midwest | June | 20-30% savings |
South | August | 15-25% savings |
Smart Buying Strategies
Pre-Buy Contracts
Lock in summer rates for winter delivery. These contracts protect against price spikes but require careful supplier selection.
Automatic Delivery Programs
Many suppliers offer programs that monitor your usage and deliver automatically when needed, often at pre-negotiated rates.
Bulk Purchases
Ordering larger quantities can qualify you for volume discounts. Ensure you have proper storage capacity before committing.
Additional Cost-Saving Tips
- Schedule deliveries before Thanksgiving to avoid winter premiums
- Join oil cooperatives for group purchasing power
- Maintain your heating system for maximum efficiency
- Consider budget payment plans to spread costs evenly
Market Factors Affecting Prices
Beyond seasonal demand, these elements influence heating oil costs:
- Crude oil prices (global benchmark)
- Refinery production levels
- Transportation costs
- Local competition among suppliers
- Weather forecasts
By understanding these patterns and planning ahead, you can significantly reduce your annual heating expenses. The key is buying when others aren’t – during those warm summer months when heating oil is the last thing on most people’s minds.