UPDATE 12:07 P.M. -- Borger and McLean customers were affected by this outage, and they along with the customers in southeast Amarillo have been restored.
Xcel is still working to restore service to Happy and Tulia.
The problem originated at the Randall County Substation south of Amarillo, where construction work is taking place.
The cause is still under investigation.
AMARILLO -- Xcel Energy is reporting that close to 8,000 are currently without power.
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