By Spencer James, HighGround Exchange · Updated · Sources & methods
Two agreements expire, and they renew on different rules
Gas reaches a business through three separate arrangements, and a renewal usually touches only one of them. The supply agreement is between you and a marketer: it sets the price, the term, the volume commitment and the credit support. The transportation arrangement is with the local distribution company and governs how gas moves through the distribution system to your meter, including who nominates daily volumes and who carries an imbalance. Behind both sits interstate pipeline capacity, held by the marketer or by the LDC, that gets the molecules to the city gate in the first place. Renewing the supply agreement does not, by itself, create or extend that pipeline capacity, which is why a renewal can look settled commercially and still leave deliverability unresolved. The reverse also holds: the transportation arrangement can survive a change of marketer entirely, so a business can switch suppliers without any interruption and never notice that its delivery terms were renewed on a different clock.
- Find the transportation agreement separately from the supply contract; they are usually different documents with different end dates.
- Establish whether the marketer or your business is the LDC's transportation customer, because that decides who nominates and who balances.
- Read the delivery terms for the next term, not just the commodity price.
At expiry you are in one of three positions
There is no nationwide rule for what happens when a commercial gas supply agreement ends. Enrollment, switching deadlines, default service and consumer protections are set by the state commission and the LDC tariff, and the contract governs only where it is consistent with them. What the contract does control is whether expiry produces a renewal, a switch, or a holdover. If the agreement permits continued delivery on a month-to-month or evergreen basis at a fallback price, doing nothing puts you on that price. If it does not, the account typically reverts to the utility's default supply, billed on its gas-cost-recovery basis. The expiry clause therefore decides which price you get for inaction, which makes it the first clause to read and not the last. A renewal is also not the same decision as staying: the offer on the table is a new price for a new term, and it should be measured against the market, not against what the expiring term happened to cost.
- Read the expiry clause for the fallback price and the notice requirement before looking at the offer.
- Check whether nonrenewal requires written notice, and to whom it must be sent.
- Confirm the LDC's own drop date, which can fall before the contract's end date.
- Treat an automatic renewal at a fallback price as the default outcome of doing nothing.
Capacity is the part a supplier cannot simply renew for you
Interstate pipeline capacity is where a gas renewal differs most from an electricity renewal. Under 18 CFR 284.8, a pipeline offering firm transportation must include a tariff mechanism allowing a firm shipper to release capacity, permanently or for a shorter term, and to designate a replacement shipper. The pipeline posts the release and allocates the capacity to the highest-rate bidder that meets the stated terms, and where the releasing shipper has designated a replacement shipper that bids highest and satisfies the conditions, that shipper receives it. The practical consequence for a buyer is that deliverability is procured upstream, separately from the retail price, and on a quantity that is declared rather than discovered. At renewal the marketer is deciding whether its portfolio still covers your load shape: the annual contract quantity, the maximum daily quantity, and the peak week that the two of them have to survive. A business that added sites, electrified process heat or added refrigeration since the last term is asking for capacity against a profile that no longer exists, and the renewal is the only moment at which that is cheap to correct.
- Have the marketer state the annual and maximum daily quantities it is contracting for your account, and check them against your own peak day.
- Raise any change in load before the renewal is priced, not after the term starts.
- Ask who holds the upstream capacity behind your supply, and what happens to it if you change supplier.
- If your business holds capacity directly, treat its renewal or release as a separate project with its own dates.
The season a term starts in is a pricing input
The gas year has a shape, and starting a term on the wrong side of it changes what you are buying. EIA dates the storage injection season from 1 April to 31 October, with the withdrawal season running from November through March. A term beginning on 1 November starts when the market is paying for deliverability and for gas already in storage, and it runs through the weeks in which the system is most likely to be tested. A term beginning on 1 April starts at refill, with the whole injection season ahead of it. Neither start is automatically the cheaper one: EIA's own storage commentary records weeks in which injections reverse on weather and cooling demand, and a summer that tightens changes the arithmetic. But the two terms are not interchangeable products, and comparing them on a single price per unit hides the difference in the risk each one carries. The quantities reset at the same time. A renewal that carries last term's annual quantity into a smaller or larger load is how a business ends up paying for gas it does not burn, or short in the week it needs it most.
- Decide what the term has to cover: a full heating season, a construction period, or a lease that ends sooner than the gas year.
- Compare offers on the same start date and the same quantities before comparing anything else.
- Ask whether the quote includes storage and deliverability or only commodity.
- Check the end date against the next renewal's notice window, so this renewal does not create the next deadline problem.
An expiry inside the heating season is the expensive case
Physical service normally continues when a supply agreement ends in January, but the commercial position does not. The account either falls to the utility's default supply on its gas-cost-recovery basis, or continues on a holdover price written into the expiring agreement, and either way the business is buying at a price it did not negotiate for a term it did not choose. The supplier, meanwhile, has to unwind the storage, transportation and imbalance positions it was holding for that load, and that cost does not disappear. Imbalance is the second exposure: the difference between what was delivered and what was burned is settled under the tariff's cash-out provisions, which commonly reference an index and can carry a premium during critical or winter periods, with a positive imbalance bought by the utility and a negative one billed. Those formulas are not uniform across distributors, so the only reliable answer is the tariff effective on the date in question. A mid-season expiry is avoidable, and avoiding it is the whole argument for starting the renewal before the heating season rather than during it.
- Avoid an end date between November and March if the contract can be shaped otherwise.
- If a mid-season expiry is unavoidable, get the tariff's cash-out and critical-day terms in writing before it happens.
- Ask what the supplier's storage position is and how it will be closed out.
- Confirm the default-supply basis you would fall to, so the fallback is a known number rather than a surprise.
Build the calendar backwards from the LDC's switch date
A gas renewal is governed by dates that belong to other parties. The contract's notice date is yours to miss. The LDC's enrollment or drop date is set by the tariff and can fall earlier than the contract ends, which means the last opportunity to change supplier is not the last day of the term. Credit review is a third clock: a new supplier has to underwrite the account at the new volume, and that takes longer for a larger load, a new entity or a site list that has changed. Then there is capacity: volumes have to be contracted or released before the winter, not after it starts. Working backwards from those four dates is more useful than working forwards from today. A ninety-day window is a reasonable shape for a single site, but the governing dates are the tariff's and the pipeline's, so the calendar should be built from them. For a portfolio, the same exercise runs per site, because each site has its own meter, its own quantities and often its own end date.
- Write down four dates per site: contract notice, LDC switch deadline, credit review start, capacity deadline.
- Start credit review before you have chosen a supplier, so a decision is not held up by underwriting.
- For more than one site, run the calendar per site and look for endings that cluster in the same month.
- Put the next renewal's notice date in the calendar on the day this one is signed.
What to send, and how HighGround helps
A gas renewal can be scoped from a small set of documents: twelve months of bills per site or the distributor's own usage download, the transportation agreement or rider schedule showing the contracted quantities, the current supply agreement including its expiry and notice clauses, and a site list that flags anything added, closed or materially changed since the last term. With those, the two questions that decide the renewal can be answered: what load the next term has to cover, and which dates bind before it starts. HighGround reviews commercial gas contracts and coordinates supply and transportation across sites; availability, terms and the structures offered depend on your locations, the distributors serving them and the quantities involved, so no two accounts are quoted alike. An inquiry places no order and switches no supplier, and HighGround may receive compensation from a provider on a completed purchase.
- Twelve months of bills per site, or the distributor's usage export.
- The transportation agreement showing annual and maximum daily quantities.
- The supply agreement, with the expiry, notice and fallback-price clauses marked.
- A site list noting additions, closures and any change in process load.
PUT THE OPTIONS SIDE BY SIDE
Your comparison checklist
| Instrument | What it controls | What renewal actually requires |
|---|---|---|
| Supply agreement (you and the marketer) | Price, term, volume commitment, credit support | A new confirmation or term sheet; check the auto-renew and notice clauses first |
| LDC transportation service | Delivery through the distribution system, nominations, balancing | Tariff election or contract continuation; can survive a change of marketer |
| Interstate pipeline capacity | Firm deliverability to the city gate | Extension, assignment or release under 18 CFR 284.8, on the shipper's clock |
| Storage | Winter deliverability and inventory | Rights are usually the supplier's; ask how the position is closed out at expiry |
| LDC enrollment | Which supplier is recorded on the account | Switch request before the tariff's drop date, which can precede the contract end |
| Credit support | Collateral that keeps deliveries flowing | Re-underwriting at the new term and volume, which takes longer than the price does |
- A person reads every request and replies within 24 hours.
- Sending an inquiry does not place an order or commit you to anything.
- Availability and terms get confirmed for your locations before anything is decided.
Or call (501) 463-2471
Common questions
Further reading
Provider and official resources for the relevant service categories. Product availability and terms must be confirmed for your request.
eCFR — 18 CFR 284.8, release of firm capacity on interstate pipelines ↗EIA — injection season runs 1 April to 31 October ↗EIA — natural gas storage ↗Public Utilities Commission of Ohio — natural gas ↗PA Gas Switch — Pennsylvania gas shopping ↗EIA — weekly natural gas update ↗