The golden age of natural gas lost some of its luster this month. Japan, the world’s biggest buyer of the fuel in liquid form, restarted a nuclear reactor on the island of Kyushu Aug. 11, re-embracing atomic power to shrink energy-import costs. A week later, a production milestone was marked at Santos Ltd.’s Curtis Island plant in Australia, a new liquefied natural gas project that’s part of a record annual capacity increase. Japan’s return to nuclear power after the 2011 Fukushima disaster and China’s economic slowdown are undermining the demand that prompted the International Energy Agency to envision a golden age four years ago. Companies including Chevron Corp. and BG Group Plc were counting on Asia’s consumption as they sank hundreds of billions of dollars into new supply. A glut will cap LNG prices […]