TOGETHER WE MAKE A DIFFERENCE!

  • Delivering Fuel since 1935

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  • TH Malloy Wins Green Fleet Award

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  • Three Generations of TH Malloy Energy

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Serving Rhode Island and Southern Massachusetts

Full service home heating, motor, marine & diesel fuels

"I recently purchased property and was in the process of screening tenants and dealing with inspectors/contractors at the same time; I completely overlooked the oil levels at the time. It was late Friday afternoon when I realized I was out of oil and there was a pending snow storm that weekend. After calling many various oil companies, I reached T.H Malloy & Sons in Cumberland, RI. I explained my dilemma to your sales manager Hank, and he understood the gravity of my situation and treated me as if I were a long term customer. He drove to my property and arranged with the owner Tommy, to come right out and fill my two oil tanks. After he contacted the service department , within an hour a technician was arriving at my door and they made sure there were no frozen pipes, as it had been a very cold week, as well as confirm everything was operating properly. The whole process was very professional, and pleasant. Having a business that cares about their customers and deals with each client with care and attentiveness is rarely found these days. I recommend T.H. Malloy & Sons to anyone looking to be treated and respected as a person fairly, and not just another account number to add to the company books."
Rob L. - Woonsocket, RI
Since 1935

Complete Heating Service

We are happy to help you with all your home heating needs.

We offer full-service, installation, budget plans, price protection plans, and competitive fuel pricing.

We also offer on-site diesel fuel deliveries in bulk loads or wheel-to-wheel service.
Call today for a price quote!!
View Our Services 401-333-0665

We are proud to use and distribute Newport Biodiesel

Green Solutions

Manufactured from local recycled restaurant cooking oil, by Newport Biodiesel. Newport Biodiesel uses underutilized restaurant oil that we already have here in the Ocean State.
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Our Latest News


By Karin Fleming 04 Dec, 2017

Power and energy is what fuels our homes, our kitchens, our entertainment, and safety precautions for our homes and businesses! Stay safe and let the fun continue by considering installing a Generac generator! All of those DIY projects and beautiful Christmas lights need power. Let the happiness shine brightly this year with Generac, and here’s why!


Benefits of Generac Generators for Home Owners


Why wait until your next power outage to install your home backup power! It works automatically. So,  whether you’re home or at work,   the power will always be ready for you and any power outages.The power goes straight to your home’s electric panel, as well. Your families need power to maintain their daily life. Keep your kids comfortable and choose a Generac Generator.


  • The backup generator will always be working on natural gas or LP fuel supplies.
  • The natural gas has already been established in your generator, so you don't have to worry about fueling it with gas.
  • Produces power straight to your electrical system.

Benefits of Generac Generators for Business Owners


Generac has a wide variety of backup power units for  industrial and business services .  We can power a wide range of products including large industrial sized units. There’s a wide variety of unique options that you can choose from that will best suite your businesses or industrial needs.


  • Fully automatic transfer switches.
  • Multiple accessories to choose from.
  • Generator designs for commercial and industrial sized applications.
  • Multi-megawatt capacities.
  • State-of-the-art tools.


Generac generators will always be ready to power even the most complex of systems. Back up generators will always be ready to back up your system and keep your business going. Industrial businesses need unique products for their facilities and to meet their company's overall goals. Choose a Generac generator today at T.H. Molloy & Sons. Let us install your power unit to achieve your goals! The Malloy family has been in the fuel business since 1935, always providing a personal and reliable touch in the Rhode Island and Southern Massachusetts area. For more information about  T.H. Molloy & Sons, visit our website at www.thmalloy.com or give us a call at 401-333-0665.
By Karin Fleming 01 Nov, 2017

Fall is the perfect time of year to give your heating system a tune-up. Before chilly autumn nights give way to frigid winter ones, you’ll want your heating system to be up for the task ahead.  T.H. Malloy Energy  is a full-service heating company that offers tune-ups as well as system upgrades and replacements. These services could save you a lot of money in the long run, and more importantly, keep you and your family safe. Here are the kinds of things we look for when performing maintenance on your heating system:

Proper Air Flow

We inspect and remove any blockages from the system. This ensures that you feel the full amount of heat your system is producing. If a block exists and is not removed, the system works harder, uses more energy and wears itself out faster.

Carbon Monoxide Leak

Carbon monoxide is a colorless, odorless gas that is difficult to detect and extremely dangerous. Regularly scheduled maintenance and cleaning reduces your risk of being exposed to carbon monoxide. Whether you get your system tuned up or not, however, having working carbon monoxide detectors installed in your home is a must for your family’s safety.

Reduce Repairs

An ounce of prevention is worth a pound of cure! In other words, small fixes are easier on your system and your wallet. You can extend the life of your heater by keeping it clean and fixing small problems when they happen, as well as scheduling yearly tune-ups.

Household Changes

Is your household expanding due to a relative moving in or a newborn? Has there been a recent construction or remodeling work done on your house in fall or summer? Has someone made changes to your home heating system since last winter? If any of those apply to your household, you should consider scheduling maintenance and contact the office for proper deliveries to make sure that your home is ready for winter.

Cleaner Home

A clean system will pump cleaner air into your home. Scheduling a fall tune-up now will remove dust and allergens to maintain cleaner air in your home throughout winter. Since your home doesn’t see much ventilation during the winter months, you don’t want to skip the fall maintenance to ensure the recycled air is clean as can be.

For all your heating needs,  contact  T.H. Malloy Energy!


By Karin Fleming 25 Sep, 2017

Biodiesel is a renewable and clean burning fuel source that is made from used (recycled) vegetable oils, animal fats, or recycled restaurant grease. It is said to produce less pollution and greenhouse gas than standard petroleum diesel formulations and has many other benefits for consumers.

Renewable energy: Unlike petroleum products that have the potential to vanish in the coming years, biodiesel is a renewable energy source and can be locally produced on-demand.

No engine modification required: One of the best things about biodiesel is that it can be used in an existing diesel engine with little to no modification required. Because of this, it can replace other fossil fuels used in standard diesel formulations. It also improves the lubrication in the engine and thus can increase the life of the vehicle.

Less greenhouse gases : When fossil fuels are burned, gases like carbon dioxide are released into the atmosphere. Over time this raises the atmospheric temperature which has been connected with global warming.

Go local: One quarter of all the fossil fuel used in the United States are purchased from foreign suppliers. By contrast, biodiesel is manufactured with local products, thereby eliminating our reliance on foreign oil.

Less pollution: Standard crude oil must be refined before it can be used in diesel engines. This process releases many harmful toxins in the air causing greenhouse gases. Because biodiesels use vegetable and animal oils, the refining process releases less toxic chemicals into the environment.

Eco-friendly: Biofuels release less carbon into the atmosphere, so they are better for the environment.

At T.H. Malloy & Sons , we are proud to offer our customers biodiesel as a fuel alternative. Our fuel is manufactured by Newport Biodiesel, using recycled cooking oil from restaurants right here in Rhode Island. This eliminates a waste stream, therefore the product is used cradle to grave.

In addition to being eco-friendly, our biodiesel is approved by the US Department of Transportation and is ASTM certified. It can be used in homes, buses, pick-up trucks, heavy equipment and marine vehicles as well as any other equipment with a standard diesel engine.

Are you interested in learning more about this green fuel solution ? Contact us today to find out if biodiesel is right for your fuel needs.


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