What if I am tax exempt?
You should fax your completed tax exemption certificate to our Customer Care Center at 1-844-742-1330 or mail us a copy of the certificate to the following address in order to process your exemption:
WTU Retail EnergyUnless we have a certificate on file, we are required to charge you sales tax.
PO Box 180
Tulsa, OK 74101-0180
