Source: U.S. Energy Information Administration (Sep 2026). Underlying daily prices: Refinitiv, an LSEG business.
EIA computes annual values as unweighted averages of daily closing spot prices supplied by Refinitiv, an LSEG business. EIA information is public, but its reuse policy excludes content licensed from third parties; redistribution rights for the underlying daily prices are not established here, so only the published annual averages are shown.
Global Heat Flow Data Assessment Group et al. (2024): The Global Heat Flow Database: Release 2024. V. 2026.03. GFZ Data Services. https://doi.org/10.5880/fidgeo.2024.014 Licensed under CC BY 4.0. Wellficent shows parent-level site values and selected metadata; values are not modified.
