Where to send your payment and what methods Oklahoma Natural Gas accepts
Oklahoma Natural Gas (ONG) gives you three main ways to pay your bill: online through their website, by phone, or by mail. Each method has different timing and fees, so the right choice depends on when your payment is due and whether you want to avoid a late charge.
The fastest route is online at okcng.com. You log in with your account number and password, then pay immediately using a bank account or debit card. There is no fee for bank account payments, but debit card payments cost a small fee — ONG's website will show you the exact amount before you confirm. Online payments post the same day if you submit before their cutoff time, which is typically 5 p.m. central time on business days.
By phone, you can call ONG's customer service line at 1-800-522-8154 to pay with a debit or credit card. A representative will process the payment while you are on the call. This method also charges a fee for card payments, and the payment posts the same business day. Phone payments are useful if you do not have online access or prefer speaking to someone, but the fee makes them more expensive than online bank account payments.
Mailing a check or money order takes longer — allow at least 7 to 10 business days for the payment to reach ONG's office and post to your account. Mail your payment to the address printed on your bill under "Payment Address" or "Where to Send Your Payment." Mailed payments have no fee, but they are risky if your due date is soon, because late charges start the day after the due date passes, even if your check is in transit.
Key Takeaways
- Online bank account payments at okcng.com have no fee and post the same day, making them the cheapest and fastest option.
- Phone payments and online debit card payments both charge a fee and should only be used if you cannot pay by bank account.
- Mailed checks take 7 to 10 business days and risk a late charge if your due date is within two weeks.
- ONG's due date is printed on your bill, and late charges begin the day after that date if payment has not posted.
- You can set up automatic payments from your bank account through ONG's website to avoid missing a due date.
Setting up automatic payments so you never miss a due date
Automatic payments remove the risk of forgetting to pay and eliminate the need to choose a payment method each month. ONG calls this Budget Billing with Auto Pay, though you can also set up automatic payments without enrolling in their budget plan.
To start, log into your account at okcng.com and look for "Billing & Payment" or "Auto Pay" in the menu. You will enter your bank account information once, and ONG will withdraw the payment automatically on a date you choose — usually a few days before your due date. The withdrawal comes from your checking or savings account with no fee. If you want to change the payment date or amount, you can adjust it anytime through your online account.
Automatic payments work best if your usage is fairly steady month to month. If your bill varies a lot — for example, if you use much more gas in winter — you may want to review the amount each month before it withdraws, or set the automatic payment to a lower amount and pay any difference manually.
Understanding late fees and what happens if you miss a payment
ONG charges a late fee if your payment does not post by the due date shown on your bill. The late fee amount varies but is typically a percentage of your bill or a flat fee — check your bill or call customer service to learn the exact amount ONG charges. Late fees are added to your next bill.
If you miss a payment, ONG will send you a notice in the mail warning you that service may be disconnected if you do not pay within a set number of days — usually 10 to 15 days from the notice date. This is your chance to pay before the company shuts off your gas. If you receive a disconnection notice, call ONG immediately at 1-800-522-8154 to discuss a payment plan or to arrange payment before the disconnection date.
If your service is disconnected, you will need to pay the full past-due balance plus a reconnection fee to restore gas service. Reconnection fees are separate from late fees and can be substantial. In winter months, Oklahoma has rules that limit when ONG can disconnect service for nonpayment, but these protections do not eliminate the debt — they only delay disconnection.
Paying a past-due balance or setting up a payment plan
If you have fallen behind on your bill, contact ONG's customer service at 1-800-522-8154 before you receive a disconnection notice. ONG sometimes offers payment arrangements — a plan to pay your past-due balance over several months instead of all at once. The company is more likely to work with you if you call before a notice arrives.
To set up a payment arrangement, you will need to tell ONG how much you can pay each month. The company will propose a schedule that spreads your past-due balance across a set number of months, usually 2 to 6 months depending on how much you owe. You will still owe your current month's bill on top of the arrangement payment, so your total monthly payment will be higher than usual until the past-due balance is cleared.
If you cannot afford to catch up even with a payment plan, ask ONG whether you are may be able to access for their Customer Assistance Program or other hardship programs. These programs are not the same as payment arrangements — they may reduce or forgive part of your bill if you meet income requirements. ONG's website has information about these programs, or you can ask about them when you call customer service.
What to do if you think your bill is wrong
Before you pay, check your bill for obvious errors: make sure the account number matches your address, the meter reading looks reasonable compared to last month, and the rates applied match what you expect. Your bill shows the meter reading from this month and last month, so you can do a rough calculation to see if the usage makes sense.
If you spot an error, call ONG at 1-800-522-8154 and explain what you think is wrong. The company can look up your account and check the meter reading. If there was a billing error, ONG will issue a corrected bill. If you think the meter itself is faulty, you can request a meter test — ONG will send someone to check it, though you may be charged a fee if the meter is working correctly.
Do not skip paying your bill while you dispute it. Pay the amount you believe is correct, and note in writing or in a call to ONG that you are disputing the rest. This protects you from late fees while the company investigates. Once the dispute is resolved, ONG will adjust your account if you overpaid or bill you for any difference if you underpaid.
Paying your bill if you are moving or closing your account
When you move out of an ONG service area or no longer need gas service, you must contact ONG to close your account. Call 1-800-522-8154 or go online to request a final meter reading. ONG will send a technician to your home to read the meter and shut off service — you cannot do this yourself.
Your final bill will show all usage up to the disconnection date, plus any past-due balance from earlier months. You are responsible for paying this final bill even if you have already moved. ONG will mail the final bill to the address you provide, so make sure to give them a forwarding address. If you do not pay the final bill, ONG may report it to a collection agency or credit bureau.
If you are moving to another home within ONG's service area, you can request a transfer instead of a disconnection. This is faster than closing one account and opening another, and it avoids a reconnection fee at your new address.
Frequently Asked Questions
Can I pay my ONG bill at a store or payment center?
ONG does not list third-party payment locations on their website. Your options are online at okcng.com, by phone at 1-800-522-8154, or by mail. Some utility payment services may accept ONG payments, but you would need to contact them directly to confirm and learn about any fees they charge.
What time does ONG's online payment system close each day?
Online payments submitted before 5 p.m. central time on a business day post the same day. Payments submitted after 5 p.m. or on weekends and holidays post the next business day. Check okcng.com for their exact cutoff time, as it may vary.
Will I get a refund if I overpay my bill?
Yes. If you pay more than you owe, ONG will credit the overpayment to your next bill. If you close your account with a credit balance, ONG will mail you a refund check to the address on file. The refund may take several weeks to arrive after your account closes.
What happens if I pay late but before disconnection?
You will owe a late fee added to your next bill, but your service will not be disconnected. Late fees start the day after your due date passes. If you pay within the grace period shown on your disconnection notice, you avoid disconnection but still owe the late fee.
Can I dispute a charge on my bill after I have already paid it?
Yes. Contact ONG at 1-800-522-8154 to report the disputed charge. Explain what you think is wrong, and ONG will investigate. If the company finds an error in your favor, you will receive a credit on your account. If you think the error is in ONG's favor, you may need to request a formal review or file a complaint with the Oklahoma Corporation Commission.