Where to send your payment in Oklahoma
Your natural gas bill in Oklahoma comes from one of two companies: Oklahoma Natural Gas Company (ONG), which serves most of the state, or Atmos Energy, which serves parts of central and western Oklahoma. The company name appears on your bill, and that is the company you pay.
Both companies offer multiple ways to pay: online through their websites, by phone, by mail, or in person at payment centers. ONG's website is ongcorp.com and Atmos Energy's is atmosenergy.com. You can find your account number on your bill — you will need it to pay online or by phone.
If you are unsure which company serves your address, call 211 or search your zip code on either company's website. The site will tell you when ready whether service is available in your area.
Key Takeaways
- Oklahoma Natural Gas Company serves most of Oklahoma; Atmos Energy serves parts of central and western Oklahoma, and your bill shows which one you use.
- Both companies let you pay online, by phone, by mail, or at a payment center, and online payment usually posts within one business day.
- Setting up automatic payments through your bank or the gas company prevents late payments and takes less than five minutes to start.
- If you fall behind on payments, contact your gas company directly before your service is disconnected — most have hardship programs that pause or reduce bills temporarily.
Paying online or by phone
Online payment is the fastest route if you need to pay quickly. Log into your account on ongcorp.com or atmosenergy.com, enter your account number and the amount you want to pay, and choose your payment method — debit card, credit card, or bank account. The payment usually posts within one business day, though the gas company may take a few days longer to update your account balance on their website.
Paying by phone takes about the same time. Call ONG at 1-888-669-7423 or Atmos Energy at 1-844-363-3328. Have your account number and payment method ready. Both companies charge a small fee for phone payments — usually $1 to $3 — though paying online is free.
Neither company requires you to create an online account to pay once. You can pay as a guest using just your account number and zip code. However, creating an account lets you see your payment history, set up automatic payments, and receive bill reminders by email.
Setting up automatic payments
Automatic payment is the simplest way to avoid late fees and disconnection. You authorize your gas company to withdraw the bill amount from your bank account or charge your card on a date you choose — usually around the due date on your bill. Once set up, the payment happens without you having to do anything each month.
To set up automatic payments, log into your account on the gas company's website and look for "Autopay" or "Automatic Payments" in the billing section. You will enter your bank account number and routing number, or your card details. The first payment usually processes within a few days. You can change or cancel automatic payments anytime through your account.
Some people worry about automatic payments if their balance changes month to month. Both ONG and Atmos Energy let you set a fixed amount or let the payment adjust to match your bill. If you choose a fixed amount, make sure it covers your average bill so you do not fall behind.
Paying by mail or in person
If you prefer not to pay online, you can mail a check or money order. Write your account number on the check and mail it to the address on your bill. Mail payments take longer to reach the company — typically five to seven business days — so send your payment early if the due date is near.
ONG has payment centers in some towns where you can pay in person with cash, check, or card. Atmos Energy does not operate walk-in payment centers, but some third-party locations accept payments on their behalf. Check the company website for locations near you, or call the customer service number on your bill.
Paying in person or by mail does not cost extra, but the payment takes longer to post to your account than online or phone payments do. If you are close to your due date, online or phone payment is faster and safer.
What happens if you miss a payment
If your payment does not arrive by the due date, your account goes past due. ONG and Atmos Energy typically send a past-due notice within a few days and may charge a late fee. If your bill stays unpaid for 30 to 45 days, the company may disconnect your service without further notice.
If you know you cannot pay on time, contact your gas company before the due date. Both ONG and Atmos Energy have hardship programs that may let you extend your due date, set up a payment plan, or temporarily reduce your bill. These programs are not automatic — you have to ask for them. Call the number on your bill and explain your situation. The company will tell you what options are available.
If your service is already disconnected, you will need to pay the full past-due balance plus a reconnection fee to restore gas. Reconnection can take one to three business days. Paying before disconnection happens is much faster and cheaper.
Understanding your bill and due date
Your natural gas bill shows the amount due and the due date near the top. The due date is usually 15 to 20 days after the bill is mailed. Your bill also shows your account number, service address, and the dates your meter was read.
The bill breaks down your charges into the cost of gas you used, delivery charges, and taxes. The total is what you owe. Some bills include budget billing information — a program that spreads your yearly gas costs evenly across 12 months so your bill stays about the same each month instead of spiking in winter.
If you do not understand a charge on your bill, call your gas company's customer service line. They can explain each line item and tell you whether you are may be able to access for any discounts or information programs.
Payment options for people without bank accounts
If you do not have a bank account or credit card, you can still pay your gas bill. Both ONG and Atmos Energy accept cash payments at certain locations. ONG has payment centers in some areas; Atmos Energy works with third-party payment agents. Check the company website or call customer service to find a location near you.
You can also pay by money order at a grocery store, pharmacy, or post office, then mail it to the address on your bill. Money orders cost a small fee — usually $1 to $2 — but they are safer than mailing cash and work just like a check.
Some community action agencies and nonprofits in Oklahoma help people pay utility bills if they are in financial hardship. Call 211 to find programs in your area. These programs may pay part or all of your bill directly to the gas company, though they usually have income limits and require you to explore.
Frequently Asked Questions
How long does it take for an online payment to show up on my bill?
Online payments usually post to your account within one business day, though the gas company may take a few days longer to update your balance on their website. If you are paying close to your due date, call the company to confirm the payment arrived before your due date passes.
Can I pay someone else's gas bill?
Yes. Call the gas company's customer service line with the account number of the person whose bill you want to pay. They will tell you how to send a payment and whether it will be credited to that account. Some companies let you pay online if you have the account number; others require a phone call.
What if I pay too much by accident?
The gas company will credit the overpayment to your next bill. If you want a refund instead, call customer service and ask. They will mail you a check, though it may take several weeks to arrive.
Do I have to pay the full bill amount, or can I pay part of it?
You can pay any amount you want, but only the full amount by the due date will keep your account current. Partial payments reduce what you owe but do not prevent late fees or disconnection if the full bill is not paid by the due date. If you cannot pay the full amount, contact the gas company about a payment plan.
Is there a fee for paying online?
No. Paying online through the gas company's website is free. Paying by phone usually costs $1 to $3. Paying by mail or in person does not cost extra, but takes longer to process.