NEW YORK (AP) — Oil prices are climbing again and are back to where they were before the summer as the war with Iran keeps clogging the global flow of crude. That’s worsening worries about inflation and cranking up pressure within the bond market, helping to send stocks lower again on Wall Street Thursday. The S&P 500 fell 0.6% and is on track for a fourth straight loss. The Dow Jones Industrial Average fell 300 points, or 0.6%, and the Nasdaq composite fell 0.9%. Brent crude, the international standard, climbed another 4.1% and got back above $105 per barrel for the first time since May.