NEW YORK—Global stock benchmarks and oil prices fell on Friday while safe havens such as the dollar and Treasury bonds rose as investors wrestled with a hawkish turn from major central banks in the fight against inflation and rising numbers of Omicron cases. Asian shares closed near lows for the year and broad-based European stock benchmarks slid 0.5 percent. Treasury bonds yields, meanwhile, touched their lowest levels since early December. “Central bankers have delivered a hawk for the holidays. The balance of 2021 will be spent focused on the ramifications from Omicron and any associated restrictions and/or delays in the return to normal,” said Ian Lyngen, head of U.S. rates strategy at BMO Capital Markets. MSCI’s gauge of stocks across the globe shed 0.78 percent. In midday trading on Wall Street, the Dow Jones Industrial Average fell 475.71 points, or 1.33 percent, to 35,421.93, the S&P 500 lost 41.38 points, …