LNG spot market prices in Asia have tripled since the start of the year. Asia and Europe are locked in a race for a limited number of cargoes. The U.S. is exporting record volumes of the fuel. And QatarEnergy just extended a force majeure on its own LNG exports. The world is short on gas—and will remain so for a while. The Japan-Korea Marker, the Asian LNG benchmark, topped $31 per million British thermal units this month. In fact, the benchmark briefly rose above $33 per mmBtu, compared with a little over $9 per mmBtu in January this year.…