DP&amp;L is a public utility incorporated in 1911 under the laws of Ohio. Beginning in 2001, Ohio law gave consumers the right to choose the electric generation supplier from whom they purchase retail generation service, however transmission and distribu tion services are still regulated. DP&amp;L has the exclusive right to provide such service to its approximately 526,000 customers located in West Central Ohio. DP&amp;L provides retail SSO electric service to residential, commercial, industrial and governmental customers in a 6,000 square mile area of West Central Ohio. DP&amp;L sources all of the generation for its SSO customers through a competitive bid process. Through September 30, 2017, DP&amp;L owned undivided interests in multiple coal-fired power stations and multiple peaking electric generating facilities as well as numerous transmission facilities. On October 1, 2017, the DP&amp;L -owned generating facilities, excluding the Beckjord Facility and Hutchings EGU, were transferred to AES Ohio Generation, an affiliate of DP&amp;L and wholly-owned subsidiary of DPL , through an asset contribution agreement to a subsidiary that was merged into AES Ohio Generation. Principal industries located in DP&amp;Ls service territory include automotive, food processing, paper, plastic, manufacturing and defense. DP&amp;L's sales reflect the gen eral economic conditions, seasonal weather patterns of the area and the market price of electricity. Through the date of Generation Separation, DP&amp;L sold energy and capacity into the wholesale market. As a result of Generation Separation, DP&amp;L now only has one reportable segment, the Utility segment. In addition to DP&amp;L's electric transmission and distribution businesses, the Utility segment includes revenues and costs associated with DP&amp;L's investment in OVEC and the historical results of DP&amp;Ls Beckjord and Hutchings Coal generating facilities, which were either closed or sold in prior periods. DP&amp;Ls electric transmission and distribution businesses are subject to rate regulation by federal and state regulators. Accordingly, DP&amp;L applies the accounting standards for regulated operations to its electric transmission and distribution businesses and records regulatory assets when incurred costs are expected to be recovered in future customer rates and regulatory liabilities when current cost recoveries in customer rates relate to expected future costs or overcollections of riders. DP&amp;L employed 630 people at January 31, 2020. Approximately 59% of all employees are under a collective bargaining agreement that expires on October 31, 2020.