Your prices could be set by a competitive market

This program is available to our commercial and industrial customers. You can choose to purchase your natural gas from a certified supplier instead of us. If you choose to purchase your natural gas from a supplier, we will continue to deliver the same reliable service, read your meter, perform safety checks and respond to emergencies.

The price of natural gas charged by a supplier is set by a competitive market, meaning there is no guarantee you’ll save money, but they may offer pricing and special incentives. You will still receive an invoice from Columbia Gas for the delivery of the natural gas to your location, along with various meter charges, banking and balancing fees and applicable tax. Separately, your supplier will bill you for your natural gas supply.

How to enroll

  • Review our list of current suppliers below.
  • Evaluate the offer and compare prices. The Maryland Public Service Commission website lists full current approved suppliers and eligibility.
  • Suppliers offer different risks and rewards, such as fixed and variable rates, flat discounts and up-front incentives.
  • Consider the contract terms. Since many suppliers require you to agree to contract terms, you’ll want to know contract length and if you can cancel.
  • Choose a supplier and complete the Columbia Gas Transportation Service agreement, which your supplier is responsible for submitting to us for your enrollment.
  • Once enrolled in the Transportation Service program, your bill will be sent on a one month delay (example: your January bill will be mailed to you in February).
  • Transportation Service customers can view and pay their bills online through our Aviator website.

Common questions

What is Gas Transportation Service (GTS)?

Under the GTS program, customers have the option of purchasing their gas from a supplier. We will continue to deliver the natural gas to your facility, but the purchase function will be handled by the company of your choice. This method of natural gas purchasing is similar to the telecommunications industry where you choose a long distance provider.

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Why would I buy my gas from someone other than Columbia Gas?

There might be an opportunity to save money on your gas cost. Suppliers are not subject to state utility commission pricing regulations and can price their gas differently than we do. Under federal and state regulations, gas costs are passed through to all sales customers on an average basis, dollar-for-dollar. We are not permitted to "mark-up" gas costs. We derive our income from the delivery of gas through our distribution system to both sales and transportation customers. You are our customer whether you purchase traditional sales service from us, or choose to purchase it from a third-party supplier.

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What is included in the cost of your natural gas service?

First, there's the cost of the natural gas itself. We refer to this as the "commodity cost." Next comes the "transportation cost". This is the cost of delivering the natural gas from the supplier or producer to our distribution system. It includes fixed or demand charges to reserve the pipeline capacity needed to transport and store your gas for when you need it. And lastly, we have the "distribution cost." This is the cost of delivering gas to your facility. It includes not only the actual delivery costs, but also such items as pipeline maintenance, system upgrading, meter reading, and billing.

When you enter the GTS program, you are essentially purchasing the gas or commodity from a supplier of your choice, rather than us. Transportation costs remain the same, as do the costs associated with the distribution service.

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How do I sign up for Gas Transportation?

Choose a supplier. You may contact us for a list of qualified suppliers and they are listed on our website. Your chosen supplier will forward the necessary paperwork to you for your approval. This will include a Gas Transportation Service Agreement between you and us, detailing your service options, volume requirements, service address, account contact information, and the name of your supplier. You may also be required to execute an agreement with your supplier. Your supplier is responsible for returning the Gas Transportation Service Agreement to us for further processing.

When you enter the GTS program, you are essentially purchasing the gas or commodity from a supplier of your choice, rather than us. Transportation costs remain the same, as do the costs associated with the distribution service.

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Would I save money if I purchase gas from a different supplier?

Costs vary from supplier to supplier. This is something you would need to discuss with potential suppliers.

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Why can another supplier offer natural gas at a lower price than us?

We are a regulated utility required to price gas on an average basis to all customers. We also must include certain fixed charges relative to reliability of delivery. By purchasing gas from another supplier, you can tailor the level of service reliability and your supplier can target particular gas supplies to satisfy your needs.

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Will I get two bills – one from the supplier and one from us?

Yes. You will receive one bill from us and one from your supplier. Your Columbia bill will reflect your transportation charges or the cost of delivering the gas to your facility. This could also include a commodity charge from us, which occurs when your supplier falls short in delivering enough gas to your facility. The bill from your supplier will reflect the cost of the gas commodity delivered to us on your behalf.

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Columbia Gas has always been able to supply the natural gas that I wanted and needed. Is there any chance that another supplier might not be as reliable if we have an exceptionally cold winter or other emergency?

The possibility does exist. However, there are safeguards and if you feel you would like to take advantage of them, you may contract with us to purchase Backup Service or you may install an alternate fuel source. We suggest you talk to your local Columbia Gas Representative as well as any potential suppliers about these options.

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If I decide to buy my gas from another supplier and it does not work out, will Columbia Gas still provide my gas service?

We may provide you gas under our normal system supply rate schedules provided that:

  • Your return to system supply does not negatively impact the rate non-transportation customers pay.
  • You are willing to absorb any increased costs caused by your return to sales service.
  • You give proper notice per the Gas Transportation Service Agreement and tariff.

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Changing suppliers is a big decision. What advice can you offer?

Be sure you fully understand any arrangement that you agree to and understand the terms of the agreement you sign.

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If I do decide to choose another supplier, what is my next step?

Once you have chosen a supplier, that supplier will provide you with the necessary paperwork to participate and enroll in GTS. Columbia Gas will process the contract once we receive the agreement and all of the necessary information from you and/or your supplier.

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Have an emergency?

If you smell gas, think you have a gas leak, have carbon monoxide symptoms or have some other emergency situation, go outside and call 911 and then call us at 1-888-460-4332.