Clyde Riley Hill

Southwestern Public Service Co. engages in the provision of electricity services. The firm generates, purchases, transmission, distributes, and sales electricity in portions of Texas and New Mexico. It offers oil and gas extraction, petroleum, and coal products. The company was founded in 1921 and is headquartered in Amarillo, TX.

Xcel Energy Services, Inc. provides electric and natural gas utility services. The company is headquartered in Minneapolis, MN.

Public Service Company of Colorado engages in the of generation, purchase, transmission, distribution, and sale of electricity in Colorado. It operates through the following segments: Regulated Electric Utility, Regulated Natural Gas Utility, and All Other. The Regulated Electricity segment generates electricity which is transmitted and distributed in Colorado. It also comprises sales for resale and provides wholesale transmission service to various entities in the United States. The Regulated Natural Gas Utility segment focuses in the transportation, storage, and distribution of natural gas in portions. The company was founded in 1924 and is headquartered in Denver, CO.

Evergy Kansas Central, Inc. engages in the generation, transmission, and distribution of electricity and natural gas in Kansas. The firm provides electricity to residential, commercial, and industrial customers in the cities of Topeka, Lawrence, Manhattan, Salina, and Hutchinson. The company was founded on December 11, 1909 and is headquartered in Topeka, KS.