Spire Inc. operates as a regulated natural gas utility, serving approximately 1.7 million customers across Missouri, Alabama, and Mississippi. The company's business is divided into three main segments: Gas Utility, Gas Marketing, and Midstream. The Gas Utility segment is the core of the business, encompassing the regulated distribution operations of Spire Missouri, Spire Alabama, Spire Gulf, and Spire Mississippi. The Gas Marketing segment provides non-regulated natural gas marketing services throughout the United States, while the Midstream segment manages natural gas transportation and storage facilities, including the Spire STL Pipeline and Spire Storage West. Founded in 1857 as The Laclede Gas Light Company, Spire has grown through strategic acquisitions to become one of the largest publicly traded natural gas distributors in the United States.
