Biden has declared he would eliminate fossil fuels that raised the cost of exploring for oil because banks were more hesitant to loan money to companies with an uncertain future. Biden limited the sale of oil leases that too damaged the oil industry. Biden administration has a stated goal of eliminating ICE cars and gas appliances and fossil fuel produced electricity. That puts the long term future of fossil fuels in jeopardy. The all hurts investment in oil. That all drove the price of energy up. So the price of everything that required energy to be produced, grown, and shipped went up. As the World's largest economy and producer of fossil fuels our inflation has a ripple effect on fossil fuels across the World. Inflation is always different in different countries. The US was lucky partly because it was low when the Trump administration ended and when Biden took over. In short the US economy depends on energy and Biden drove the price of energy up. And that was inflationary. Also Biden's attack on ICE cars has driven the price of cars up. That is also inflationary.