Heating oil prices have risen roughly 60% since Israel and the United States began attacking Iran on Feb. 28, increasing winter heating costs for households that rely on the fuel. Jonathan Robidoux, a 41-year-old Long Island resident who rents a home in New Hyde Park, N.Y., spent $1,200 on heating oil last winter and expects to pay substantially more this year. He is weighing whether to fill his tank now or wait for colder weather in hopes of lower prices, despite limited liquidity. About 3% of U.S. households use heating oil, with most concentrated in the Northeast or Alaska. Homes heated by natural gas or electricity are expected to see more modest bill increases, though energy experts said many households could still struggle financially.