DPL has presented the results of operations of Miami Fort Station, Zimmer Station, the Peaker Assets, Stuart Station, and Killen Station as discontinued operations as a group of components for all periods presented. For more information, see Part I, Item 1, Note 14 – Discontinued Operations of Notes to DPL's Condensed Consolidated Financial Statements. As such, AES Ohio Generation only has operating activity coming from its undivided ownership interest in Conesville, which does not meet the thresholds to be a separate reportable operating segment. DPL manages its business through one reportable operating segment, the Utility segment. The primary segment performance measure is income / (loss) from continuing operations before income tax as management has concluded that this measure best reflects the underlying business performance of DPL and is the most relevant measure considered in DPL’s internal evaluation of the financial performance of its segment. The Utility segment is discussed further below.