US energy firms injected 36 billion cubic feet (bcf) of natural gas into storage in the week ending August 7, exceeding market expectations of a 31 bcf build. This compares with a 49 bcf injection in the same week a year earlier and a five-year (2021–2025) average increase of 33 bcf for that period. Total inventories rose to 3.153 trillion cubic feet, standing 0.8% below the level at the same time last year but about 6.7% above the five-year average for the week. In the previous week, which ended July 31, energy firms added 33 bcf of natural gas to storage.