The provided sources consistently and authoritatively support the core elements of the statement. There is a strong consensus across primary data providers, U.S. government agencies, and major news organizations that a massive, 'historic' spike in U.S. natural gas prices occurred as a direct result of an Arctic Blast and major winter storm.The most specific quantitative evidence comes from a primary financial data source which states that prices increased by 'more than 65% for the week,' marking the 'largest weekly gain on record.' This figure is very close to the 75% mentioned in the statement. A price surge of this magnitude over a week makes it highly plausible, if not probable, that the increase hit or exceeded 75% during a more concentrated three-day period within that week, as market volatility is often not linear.This is corroborated by numerous high-authority sources, including the U.S. Energy Information Administration (EIA), which confirms a 'sharp rise' in spot prices. Other financial and news reports reinforce this by describing the event as a 'historic spike' and a 'surge.' No sources contradict the claim. While the summaries do not contain the precise '75% over three days' figure, the overwhelming qualitative and quantitative evidence strongly supports that a price increase of this scale and nature did occur.