Spire Inc is a public utility holding company with three reportable business segments: Gas Utility, Gas Marketing and Midstream. The Gas Utility segment includes the regulated operations of Laclede Gas, Alabama Gas Corporation ('Alagasco') changed its name to Spire Alabama Inc. effective September 1, 2017, and Laclede Gas Company changed its name to Spire Missouri Inc. effective August 30, 2017. The Gas Utility segment generates a majority of the company's revenue but is subject to seasonal fluctuations. The Gas Marketing segment includes Laclede Energy Resources, Inc, whose operations include the marketing of natural gas and related activities on a non-regulated basis and the Midstream segment includes transportation and storage of natural gas. Maximum revenue from residential area.