US contracts for gas for June delivery jumped 428 cents to $8,382 per million British thermal units.
Earlier, prices reached $8,474, their highest since August 2008.
US gas futures have gained more than 100% so far this year as a sharp rise in prices in Europe keeps demand for US liquefied natural gas exports at record levels, while a few countries are trying to end their dependence on Russian gas.
Gas trading in Europe has stabilized around $36 per million thermal units, while prices in Asia are at $24.
