Southwestern Public Service Company’s offering of $300 million aggregate principal amount of 3.40% First Mortgage Bonds, Series No. 4 due 2046

Hunton & Williams LLP advised the underwriters on an SEC-registered offering of $300 million aggregate principal amount 3.40% First Mortgage Bonds, Series No. 4 due 2046.

Southwestern Public Service Company (a New Mexico corporation) (the “Company”), a subsidiary of Xcel Energy Inc., is a U.S. electricity company, with operations in Texas and New Mexico. The Company primarily engages in the generation, purchase, transmission, distribution and sale of electricity and provides services to 389,000 retail customers in Texas and New Mexico. The Company’s headquarters are located in Texas.

The Hunton & Williams LLP team included Pete O’Brien, Adam O’Brian and Andrew Spector.