550-gallon oil tank fill cost

Why 550?

Two scenarios: a single 550-gal vertical or two 275-gal tanks plumbed in parallel. Used in homes burning 1,200+ gallons per season (large, older, or poorly insulated) and in homes that pre-buy a full season upfront.

Per-state fill cost, today

Volume discount?

Some dealers offer $0.02 to $0.05/gal off for 500+ gallon orders. Many do not. Ask before committing to the large-fill price expectation.

Pre-buy and the 550

A 550-gal install lets you pre-buy a full season at one price (450 usable * dealer pre-buy rate). Cap-fee math improves at this scale. See pre-buy vs cap.

Run a custom scenario

Cross-references

• Full calculator
• 275-gal tank
• 330-gal tank
• Annual cost