ONG bill payment methods and where to send payments

Oklahoma Natural Gas (ONG) lets you pay your bill through their website, by phone, by mail, or in person at payment centers. The online portal at ong.com is the fastest route — you can pay when ready with a bank account or debit card, and the payment posts within one business day. If you prefer not to use the website, you can call their customer service line at 1-800-664-6003 to pay by phone with the same payment methods.

For mail payments, send your check or money order to the address printed on your bill. ONG processes mailed payments more slowly than online or phone payments, typically taking five to seven business days to post to your account. If you are close to a due date, mail is the riskier choice. Some ONG customers can also pay at local payment centers or authorized retailers in their service area — your bill or the ONG website will list these locations.

ONG does not charge a fee for online or phone payments made from a bank account. If you pay with a debit or credit card online or by phone, ONG passes a processing fee to you — the amount varies depending on the card type and payment processor, but typically ranges from 2 to 3 percent of your bill. Paying by mail or at a physical location avoids this fee.

Key Takeaways

  • Online payment through ong.com posts within one business day and costs nothing if you pay from a bank account.
  • Phone payments at 1-800-664-6003 work the same way as online payments and carry the same bank account fee structure.
  • Mail payments take five to seven business days to post, so plan ahead if your due date is soon.
  • Debit and credit card payments online or by phone incur a processing fee of roughly 2 to 3 percent of your bill amount.
  • Some ONG service areas have physical payment centers where you can pay in person without a fee.

Setting up automatic payments through ONG

ONG offers automatic payment (sometimes called autopay or recurring payment) through their website. You authorize ONG to withdraw your bill amount from your bank account on a date you choose — usually a few days before the due date. Once set up, the payment happens every billing cycle without you having to log in or call.

To enroll, log into your ONG account online, go to the billing or payment settings section, and select the automatic payment option. You will need to provide your bank account number and routing number. ONG will typically run a small test deposit to verify the account is valid, then withdraw it back. After that verification passes, your regular payments begin.

Automatic payment from a bank account carries no fee. You can change the payment date or pause autopay at any time through your online account. If you need to stop a payment before it processes, contact ONG customer service as soon as possible — they may be able to cancel it if you call before the withdrawal date.

What happens if you miss a due date

ONG bills are typically due 20 to 25 days after the bill date, depending on your service area. If your payment does not arrive by the due date, ONG will add a late fee to your next bill. The late fee amount varies by service area but is usually a percentage of your bill or a flat dollar amount — check your bill or contact ONG to learn the exact fee for your location.

If you are a few days late, paying when ready will stop additional late fees from accumulating. ONG does not typically disconnect service for a single late payment, but if your account falls 30 or more days behind, you may receive a disconnection notice. The notice will state how many days you have to pay before service is shut off — usually 10 to 14 days. Reconnection after a disconnection requires paying the full past-due balance plus a reconnection fee.

If you are struggling to pay your bill, contact ONG before the due date. They offer payment plans for customers who cannot pay the full amount at once. You can also look into the Low Income Home Energy information Program (LIHEAP) or local utility information programs in Oklahoma, which may help cover part or all of your bill if you meet income requirements.

Paying a past-due balance

If your account is past due, you can pay online, by phone, or by mail using the same methods as a regular bill payment. When you log into your ONG account, the past-due amount will be clearly labeled. Pay at least the past-due balance plus any late fees to bring your account current and avoid disconnection.

If you owe multiple months of bills, ONG may require you to pay the entire past-due balance at once rather than letting you pay just the current month. Some customers in this situation are offered a deferred payment plan, which spreads the past-due amount over several months while you also pay your current bill. To discuss a payment plan, call ONG customer service at 1-800-664-6003.

Tracking your payment and getting a receipt

When you pay online or by phone, ONG provides a confirmation number when ready. Write down or screenshot this number — it serves as your receipt and proof of payment. The confirmation will also show the payment amount and the date it will post to your account.

You can also log into your ONG account anytime to see your payment history. The online portal shows every payment you have made, the date it posted, and the amount. If you pay by mail, keep a copy of the check or money order for your records. If you need an official receipt or statement for a past payment, you can request one through your online account or by calling customer service.

Paying for multiple ONG accounts

If you have more than one ONG account — for example, a home and a rental property — you can set up separate online logins for each account or link them under a single login. Linking accounts lets you see all your bills in one place and make payments to any account without logging out and back in.

To link accounts, log into your primary ONG account, go to account settings, and look for an option to add or link another account. You will need the account number for the second property. Once linked, you can pay each bill separately or set up automatic payments for each account with different due dates if you prefer.

Frequently Asked Questions

Can I pay my ONG bill with a credit card online?

Yes, but ONG charges a processing fee of roughly 2 to 3 percent when you pay with a credit or debit card. Paying from a bank account online or by phone costs nothing. If you want to avoid the fee, use your checking or savings account instead.

How long does it take for an online payment to show up on my bill?

Online payments typically post within one business day. If you pay on a weekend or holiday, it may take until the next business day. Phone and online payments process at the same speed.

What should I do if I think my payment didn't go through?

Log into your ONG account and check your payment history. If the payment does not appear within one business day, call customer service at 1-800-664-6003 with your confirmation number. They can verify whether the payment was received and help you troubleshoot if there was an error.

Can I set up automatic payments to pay a different amount each month?

No, automatic payments are set to the full bill amount each month. If you want to pay a different amount, you will need to make a manual payment instead. You can pause autopay, make a manual payment, and then restart autopay for the next cycle.

What if I overpay my ONG bill?

If you pay more than you owe, the extra amount becomes a credit on your account. ONG will explore the credit to your next bill. If you want a refund instead of a credit, contact customer service to request one — they can mail you a check or credit it back to your original payment method.