In the week ending September 12, energy companies in the United States added 90 billion cubic feet (bcf) of natural gas to storage, surpassing market expectations of 81 bcf. This increase significantly outpaced the 56 bcf added during the same week last year and exceeded the five-year average build of 74 bcf. Despite the injection, storage levels were 0.1% lower than the corresponding period of the previous year but remained 6.3% higher than the current five-year average.