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Payment Options

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Payment Locations

Level Pay

Please note, many times doxo will appear in search engine results as a payment option for Intermountain. We do not recommend using doxo as it is not affiliated with our company, and we are unable to verify or track payments submitted through doxo. Below are payment options supported by Intermountain.

Intermountain Gas offers many convenient payment options designed to make your bill paying as easy as possible.

Online Account Services

Make an online payment from your active U.S. checking account. It’s an easy and secure way to view and/or pay your bill free of charge online 24/7. You can also save time, trees, postage and gasoline by switching to paperless statements and managing your account online. Our online account services will give you the flexibility of reviewing your account information and monitoring your monthly usage history throughout the year. Access your account 24 hours a day for account information, a usage summary, energy conservation tips and a help center.

Automatic Payments

Enroll online to take advantage of a convenient, no-cost payment plan. Automatically pay your bill each month by authorizing Intermountain Gas Company to withdraw your payment from your financial institution on your bill’s due date. This date will be shown on your bill stub. Enroll electronically by logging in and clicking the button “Automatic Payments”, located on the Payment Center page.

SpeedPay®

Payments can be made by phone or online anytime with electronic transfer from your checking account. Use your Credit card, debit card or electronic check through Speedpay® Bill Payment Service. Speedpay® is an independent provider and charges a $1.99 fee per transaction. ATM or Debit cards with the “NYCE®”, “PULSE®”, or “STAR®” logo can be used for payment. Visa® , MasterCard® , American Express® , or Discover® credit cards can be used as well. Payments made after 4 p.m. Central Time will be processed the following business day.• Pay by phone: A credit/debit card payment can be initiated by calling 844-413-7758 and following the prompts. Be sure to have your account number ready.• Online: Payments can be made online through the SpeedPay® website. Be sure to have your account number ready

Western Union™️ Convenience Pay

To pay your Intermountain Gas bill in person, simply visit one of our nearby Convenience Pay® locations. Pay your utility bill with cash or check and there is no charge for this service. Make sure to bring your Intermountain Gas bill with you to ensure correct payment processing.

Mail Payment

Please send your payment (no cash) and the lower portion of your bill to: Intermountain Gas Company PO Box 5600 Bismarck, ND 58506-5600 Paying by personal check or money order is much more secure and makes the possibility of missing payments less likely. Please allow 5 business days for payment processing and be sure to include the bill stub with the payment.

Level Pay

The Level Pay Plan makes budgeting for your bill easy by allowing you to make equal monthly payments. To determine your Level Pay amount, we estimate your annual gas consumption, using actual usage history when available, and divide that amount into equal monthly installments. Then, we track your actual usage and make adjustments as necessary through the year. Learn more about this plan by visiting our Level Pay page.
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