Xcel Energy Inc. is a U. S. regulated electric and natural gas delivery company headquartered in Minneapolis Minnesota. The company was incorporated in Minnesota in 1909 and has grown to serve customers in eight state territories including portions of Colorado Michigan Minnesota New Mexico North Dakota South Dakota Texas and Wisconsin. It delivers electricity and natural gas through four utility subsidiaries NSP Minnesota NSP Wisconsin PSCo and SPS. In addition Xcel Energy operates transmission only subsidiaries WGI and WYCO and holds nonregulated...