Heating Oil Delivery Minimums: How Many Gallons Do You Have to Order?
You've got half a tank and want to top off at a good price. You call a dealer and find out there's a minimum delivery requirement. Suddenly the math changes. Here's how delivery minimums work, why they exist, and how to navigate them as a will-call customer.
What Is a Delivery Minimum?
A delivery minimum is the smallest number of gallons a dealer will deliver in a single trip. Most dealers in Connecticut set minimums between 100 and 150 gallons, with some going as high as 200 gallons. A few smaller dealers or local operators will deliver as little as 50–75 gallons, but this is uncommon.
The minimum exists for economic reasons: a truck dispatched for a 30-gallon top-off barely covers the driver's time and fuel, let alone profit. At 100–150 gallons, the delivery becomes viable for the dealer. Customers on automatic delivery rarely encounter minimums because the dealer controls delivery timing to ensure adequate volume. Will-call customers run into minimums most often in spring and fall when their tanks are at 50–70% capacity.
Typical Delivery Minimums in Connecticut
| Dealer Type | Typical Minimum |
|---|---|
| Large regional dealers | 100–150 gallons |
| Mid-size local dealers | 75–125 gallons |
| Small operators / rural | 50–100 gallons |
| Emergency delivery | Often waived, with surcharge |
What Happens If Your Tank Can't Hold the Minimum?
This is the most common problem. Your tank is at 50%, holds 275 gallons, and the dealer's minimum is 150 gallons — but the tank can only hold 137 more gallons. Most dealers handle this in one of three ways:
- Fill to capacity and charge for actual delivered gallons. The most common outcome. The driver fills what the tank will take and you pay for however many gallons went in — even if that's below the "minimum." Many dealers apply this flexibility more generously than their stated minimum implies.
- Refuse the delivery and ask you to call back when the tank is lower. Less common but happens, especially with strict minimum policies or during busy periods.
- Charge a minimum delivery fee. Some dealers charge a flat minimum delivery fee (e.g., equivalent to 100 gallons) even if you take fewer gallons. This effectively penalizes customers who order small quantities.
Ask upfront: When requesting bids, ask each dealer directly: "What is your delivery minimum, and what happens if my tank can't hold that much?" The answer tells you a lot about how they treat customers.
How to Work Around Minimums Strategically
If you're a will-call customer trying to optimize timing:
- Order when you're at 1/4 tank or less. A standard 275-gallon tank at 1/4 capacity has 210 gallons of capacity — well above any typical minimum.
- Buy in shoulder season on purpose. Fill up in fall (October) when prices tend to be lower and your tank is emptied from summer. You'll naturally have capacity for the minimum and get a favorable price.
- Buy a larger tank if you have the space. A 330 or 500-gallon tank means more room between deliveries and fewer minimum-related conflicts. The math almost always favors larger tank volume for active will-call customers.
Emergency Deliveries and Minimums
If you've run out of oil, most dealers will waive minimum requirements for emergency deliveries — but expect to pay an emergency surcharge of $50–$150 on top of the per-gallon price. The surcharge covers the cost of priority dispatching. Get at least 100 gallons in an emergency delivery so you don't run out again before your next planned delivery.
Order When Your Tank Is Ready
OilOutpost lets you get bids from CT dealers when your tank is at the right level — no last-minute scramble required.
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