Massachusetts Heating Oil Prices Surged 70%: Should You Keep Oil or Convert in 2026?

Massachusetts homeowners with oil heat are heading into heating season facing a much different fuel bill than they did last year.

According to the Massachusetts Department of Energy Resources, the average residential heating oil price was $5.98 per gallon as of September 14, 2026, compared with $3.52 per gallon a year earlier.

That is a 69.9% year-over-year increase.

The state's September survey found prices ranging from approximately $5.49 to $6.69 per gallon, and those numbers can move quickly as we head into the winter heating season.

The increase is not just a Massachusetts issue. Global oil and refined-fuel markets have been unusually volatile in 2026 as conflicts and disruptions have affected production, refining, and shipping routes. Reuters reported in September that energy executives were warning that the market's traditional ability to absorb supply disruptions was weakening, increasing the risk of continued price volatility.

For Massachusetts homeowners who already have oil heat, that makes operating costs more important to understand. And for buyers and sellers, oil heat brings a few additional considerations that do not come up with every heating system.

Here's what to know.

If You Own a Home With Oil Heat

A nearly 70% increase in heating oil prices does not automatically mean it makes financial sense to replace your system.

If your boiler or furnace and oil tank are in good condition, start by looking at what the house actually uses.

Review your oil deliveries from the past year or two and consider:

• How many gallons did you use?
• How often were you filling the tank during the coldest months?
• How old is the boiler or furnace?
• How old is the oil tank?
• Have either required significant repairs?

Multiplying your historical usage by today's fuel price can give you a much more realistic estimate of what the upcoming heating season might cost.

This is also a good time to look at the condition of the tank itself. An aging tank, corrosion, staining, or evidence of a leak should be evaluated by a qualified professional.

What Does It Cost to Remove an Oil Tank?

Oil tank removal cost depends heavily on the tank's location and condition.

National 2026 cost data from Angi puts typical removal at approximately $593 to $2,153, with an average around $1,357.

An accessible above-ground basement tank is generally easier to remove than an underground tank. Buried tanks may require excavation and soil testing, and a leak can introduce environmental remediation costs.

Those figures are national planning estimates, not Greater Boston quotes.

For a local example, This Old House documented an oil-tank removal at its 2026 Arlington project house. That particular accessible basement tank cost $325 to remove, plus a $50 Arlington permit.

It is a useful example of the process, but not a price homeowners should assume will apply to every property.

Can You Convert From Oil to Natural Gas?

Sometimes. But homeowners and buyers should not assume that every oil-heated house can simply be switched to gas.

There are several things to determine first:

• Is natural gas service already available at the property or on the street?
• Would a new gas line or meter be required?
• What heating equipment would need to be replaced?
• Does the chimney or venting need modification?
• What will it cost to remove the oil tank?
• Do local building rules allow new fossil-fuel equipment for the proposed project?

National 2026 estimates from Angi put an oil-to-gas furnace conversion at roughly $3,800 to $13,000, with about $8,500 cited as a typical project.

Again, that is not a Greater Boston quote. The cost can vary substantially depending on the house and whether gas service already exists.

Local Rules Can Affect Whether Gas Is an Option

This is becoming particularly important in Greater Boston.

Massachusetts has a Municipal Fossil Fuel Free Building Demonstration Program, which includes communities such as Arlington, Cambridge, Newton, Brookline, Lexington, Acton, Concord, Lincoln, Aquinnah, and Northampton.

That does not mean natural gas is universally banned in every existing home in those communities. The rules generally apply to certain types of new construction and major renovations, and the details vary by municipality.

For example, Arlington's Fossil Fuel-Free Bylaw prohibits new fossil-fuel equipment in new construction and qualifying major renovations.

So an Arlington homeowner planning a major renovation should not assume that removing an oil system and replacing it with natural gas will be permitted. For a straightforward system replacement or smaller renovation, the rules may be different.

The practical lesson: Check the local rules and the scope of the project before planning an oil-to-gas conversion.

What About Switching From Oil to a Heat Pump?

For many Massachusetts homeowners, heat pumps are the other major option.

Heat pumps use electricity, but they are different from traditional electric resistance systems such as electric baseboard heat. Rather than creating heat directly from electricity, they transfer heat from one place to another. Cold-climate heat pumps can provide both heating and air conditioning.

They can also involve a substantial upfront investment.

Mass Save's current heat-pump program uses an average installation cost of approximately $22,000 in its whole-home example, although actual costs vary significantly by property and system design.

For 2026, Mass Save lists whole-home air-source heat pump rebates of $2,650 per ton, up to $8,500.

Income-qualified households may qualify for enhanced incentives of up to $16,000 or potentially no-cost installation through qualifying programs. Eligibility requirements apply, including the home's existing heating fuel, weatherization, equipment specifications, participating utilities, and contractor requirements.

Financing May Help With the Upfront Cost

Mass Save also offers its 0% HEAT Loan for qualifying energy-efficiency projects.

Eligible homeowners can receive 0% financing for qualifying improvements. Loan amounts, project eligibility, and lender approval requirements should be confirmed directly through Mass Save before beginning work.

Installing a Heat Pump in 2026? Check the Refrigerant

There is another 2026 detail homeowners should know.

As of January 1, 2026, Mass Save removed new residential and light-commercial heat-pump systems with a global warming potential above 700, including systems using R-410A refrigerant, from its Heat Pump Qualified Product List.

Homeowners pursuing a Mass Save rebate should confirm that the exact equipment being proposed qualifies before signing a contract.

Keep Oil, Convert to Gas, or Install a Heat Pump?

*National estimate. Actual Greater Boston project costs can vary substantially.

And while high oil prices understandably make alternatives more attractive, homeowners should also remember that electricity has a cost too.

A heat pump may use electricity much more efficiently than traditional resistance heat, but operating cost depends on the particular home, system efficiency, insulation, electricity rates, outdoor temperatures, and how the system is designed.

The better comparison is not simply "oil is expensive, so electric must be cheap."

It is: What will this particular house cost to heat under each realistic option?

Buying a Home With Oil Heat? Look Beyond the Boiler

Oil heat by itself is not necessarily a reason to rule out a property.

But buyers should understand both the heating equipment and the oil tank.

During inspections and due diligence, consider asking:

• How old is the boiler or furnace?
• How old is the oil tank?
• Is the tank above ground or buried?
• Are there signs of rust, corrosion, staining, or leakage?
• When was the system last serviced?
• Are service records available?
• How much oil has the home historically used?
• If you want to replace the system later, what alternatives are actually available at this property?

The condition and safety of the system should be evaluated by the appropriate inspector or heating professional. Your real estate agent can help identify the questions that need answering, but should not be diagnosing the equipment.

Do Buyers Pay for Oil Left in the Tank at Closing?

Yes. This is one of those closing details that can surprise buyers who have never purchased an oil-heated home.

Before closing, the oil provider performs a final oil reading to determine how much fuel remains in the tank.

The value of that remaining oil is calculated based on the price the seller paid for it. The buyer then reimburses the seller for that remaining oil as an adjustment at closing.

At today's average Massachusetts price, a substantial amount of oil remaining in the tank can mean an adjustment of hundreds or even more than $1,000.

The buyer is not simply paying an extra fee. That fuel remains in the tank and becomes theirs when they take ownership.

For buyers working with a tight closing budget, it is worth knowing about this expense ahead of time rather than discovering it on the final closing statement.

Selling a Home With Oil Heat

If you are selling an oil-heated home, high oil prices do not necessarily mean you need to replace the system before listing.

Instead, make it easier for buyers to understand what they are purchasing.

If available, gather:

• Heating-system service records
• The approximate age of the boiler or furnace
• Information about the age of the oil tank
• Recent oil-delivery records
• Any documentation related to previous tank replacement or removal

Before closing, your closing team will also need the final oil reading so the remaining fuel can be properly accounted for.

If your heating system is older and you are considering replacing it before selling, talk with your real estate agent before committing to a major project.

A buyer may prefer a different heating solution than the one you choose, and spending thousands of dollars on a conversion shortly before listing does not necessarily mean you will recover that entire investment in the sale price.

Higher Oil Prices Make Planning More Important

A 69.9% year-over-year increase in Massachusetts heating-oil prices is significant.

But it does not make the decision about an oil-heated home simple.

For some homeowners, continuing to maintain an existing oil system will make sense. Others may decide that a heat pump or natural gas conversion is worth investigating. And in communities with fossil-fuel-free building requirements, the scope of a renovation may determine which options are even available.

For buyers, understanding the system helps reveal the true ongoing cost of owning the property. For sellers, having documentation and understanding the closing process can prevent surprises.

And for existing homeowners, this is a good year to understand what your current system costs, what condition it is in, and what realistic alternatives are available before the system eventually needs replacing.

Heating oil prices, electricity rates, rebates, financing programs, equipment requirements, and municipal building rules change over time. Cost figures in this article are general planning estimates and are not property-specific quotes.