Spire Completes Acquisition of TN Piedmont NatGas from Duke Energy

Utility company Spire Inc. (based in St. Louis, MO) successfully finalized its $2.48 billion acquisition of Duke Energy’s Piedmont Natural Gas utility business in Tennessee on March 31, 2026. Rebranded as Spire Tennessee, the utility becomes the state's largest investor-owned natural gas provider, serving over 200,000 customers in the Nashville region via 3,800 miles of pipeline. Approximately 200 former Piedmont employees joined Spire. The natural gas that supplies Tennessee mostly comes from the Marcellus/Utica.

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