President Joe Biden will order the release of 1 million barrels of oil per day over the next six months from the nation's Strategic Petroleum Reserve in response to a spike in gas prices triggered by Russia's invasion of Ukraine. The action, which Biden will formally announce later Thursday, will represent the largest release from the reserve in its nearly 50-year history. Gas prices at the pump have soared by nearly $1 per gallon in the month since Russia's invasion of Ukraine. The war means less Russian oil is getting to the market, and the reduction in supply is raising prices at the pump. Senior administration officials who briefed reporters ahead of Biden's announcement could not say how much the release of oil from the strategic reserves is expected to lower prices at the pump or how soon prices will start to fall. The administration predicts that release of the oil will serve as a bridge until the end of the year, when domestic production ramps up. The Energy Department will use revenue from the release to restock the emergency stockpile in future years, the officials said. To read more about how Biden's announcement will affect you at the pump, tap the link in our bio. 📸: Charlie Riedel for @apnews #biden #potus #whitehouse #gasprices