Enrollment Eligibility

Share the gift of credit union membership with your family! Your spouse, children, step-children, parents, siblings, step-parents and step-siblings are all eligible for membership as well! In addition, your household members, grandparents, and grandchildren can join Energy One.

Energy One offers Membership to employees of the following companies, though some geographic limitations apply.

American Electric Power
Apache Corporation
Avis Rent A Car
Castle & Cooke California, Inc.
Chesapeake Energy Corporation
CITGO Petroleum Corporation
Columbian Chemicals
DCP Midstream
Durez Corporation
Elk Camp Energy and Elk Camp 2
ENGlobal Engineering, Inc
Explorer Pipeline
LS Power
National Data Corporation
NuStar Asphalt Refining / NuStar GP, LLC
Occidental Petroleum Corporation
Oklahoma Surgical Hospital
PDVSA Services, Inc.
Questar Exploration
SemGroup, LP
Targa Resources
Terra Nova Properties
Vintage Production
Williams Companies

For a complete Listings of All Employer Groups, Please Visit the "Who is Eligible?"

Also eligible for membership are:
Employees who work in the One Ten Building in Tulsa, Oklahoma
Employees who work in the Merit Corporate Park in Tulsa, Oklahoma
Employees who work in the Occidental Tower in Dallas, Texas
Spouses of persons who died while within the field of membership
Employees and Volunteers of Susan G. Komen for the Cure
Talk of the Town Toastmasters

Employer Name:
Family Member Name If Joining through a Eligible Family or Household Member:
How did you hear about us?: