Spire Inc. operates as a public utility holding company, which provides natural gas service through its utility operations while engaging in non-regulated activities. It operates through the Gas Utility and Gas Marketing Business segments. The Gas Utility segment includes the regulated operations of Laclede Gas Company and Alabama Gas Corporation. The Gas Marketing segment includes Laclede Energy Resources, Inc., a subsidiary engaged in the marketing of natural gas and related activities on a non-regulated basis. The company also engages in other businesses, including the transportation of liquid propane, real estate development, the compression of natural gas, financial investments in other enterprises, propane sales transactions, propane storage, and related services, and merchandise sales business. Spire was founded in 1857 and is headquartered in St. Louis, MO.