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In order to earn your miles, you will need to have your Delta SkyMiles number handy when signing up for service with GRE and your GRE account must be active and in good standing at the time miles are to be awarded.

You will be awarded two miles for every dollar of GRE supplier gas charges on your monthly utility bill (excluding sales tax and one-time charges). If you are a Medallion® member, Delta will apply an additional mile for every eligible dollar. It's easy to start participating. Simply enter your GRE account and SkyMiles member information below. If you'd prefer to enroll by phone, call GRE (toll-free) at 1-800-841-1541 and mention that you would like to enroll in GRE's new Delta SkyMiles partnership program. Please have your SkyMiles account number handy when you call.

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If you are already a GRE customer

Enroll and start earning miles!

Please fill out the form below with both your GRE account information and the Delta SkyMiles member information for whom you want to earn miles.

GRE Account Information

  • Email and Phone Number only to be used to contact you if we encounter an issue with the information you have provided.

Delta SkyMiles Member Information

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†You must be a SkyMiles member and provide your SkyMiles account number to GRE to participate in this program and earn miles. For monthly gas service, two miles will be awarded for each dollar spent for GRE supplier gas charges. SkyMiles will not be awarded for taxes or one-time charges such as late fees for any plan. SkyMiles Medallion® members will receive one additional mile for eligible charges. Miles will be posted to your SkyMiles account (i) for customers in the DTE Gas Company service territory, up to 4 weeks after each monthly bill date or (ii) for customers in the Consumers Energy service territory, up to 6 weeks after each monthly bill due date, provided in each case you remain in good standing in the SkyMiles program. Visit for program terms and conditions. All SkyMiles program rules apply. To review the rules, please visit Membership Guide & Program Rules at All GRE program rules, and Delta prices and SkyMiles rules, are subject to change without notice. Taxes and fees for Award Travel are the responsibility of the passenger and must be paid at the time the ticket is booked. Award Travel seats are limited and may not be available on all flights or in all markets. Delta, SkyMiles, and the Delta logo are registered service marks of Delta Air Lines, Inc. Delta is not responsible for goods or services offered by any companies participating in miles promotions. Partner offers subject to the terms and conditions of each individual offer. See individual offers for details. Offers void where prohibited by law. Other restrictions may apply. Grand Rapids Energy and Delta Air Lines, Inc. are not affiliated, and neither has any obligation or liability with respect to the products or services to be provided by the other.

GRE customers in good standing who are on any of GRE’s published residential or commercial price plans and are also SkyMiles members are eligible to start earning miles. In order to maintain eligibility, a participant must receive continuous natural gas service from GRE. GRE reserves the right, in its sole discretion, to discontinue the program and/or modify the terms and conditions of the program at any time and without notice to any customer or other party.

Frequently Asked Questions