IEA (2023), Average natural gas prices across key hubs in the United States, Q1-3 2022-Q1-3 2023, IEA, Paris https://www.iea.org/data-and-statistics/charts/average-natural-gas-prices-across-key-hubs-in-the-united-states-q1-3-2022-q1-3-2023, Licence: CC BY 4.0