What was the source of the demand?
It was Government policies, (not just the U.S.) that put trillions of dollars of cash into an economy (driving up demand) in a market with the lack of supply due to supply chain problems.
It had nothing to do with Russia's invasion of Ukraine.
https://fredblog.stlouisfed.org/2023/10/the-ukraine-wars-effects-on-us-commodity-prices/
Oil prices in the U.S. were and are high because the Harris-Biden administration reduced the amount of domestic supply, causing it to have to buy from other countries. We know the domestic supply was down because he raided the strategic oil reserve.
Second, President Biden drew down the reserve when prices were high and then filled it back up when prices were lower, thereby generating a net profit for US taxpayers.
https://www.investopedia.com/us-scores-four-billion-dollar-windfall-on-oil-reserve-sales-6950935
Finally, US domestic oil and gas production is higher now than it was under Trump, and is actually at record levels of production.
https://finance.yahoo.com/news/u-oil-production-hits-record-134800676.html