In a world awash in LNG, any news about more production capacity sounds illogical. Nevertheless, this is what U.S. energy companies are doing: they are boosting their production and export capacity despite a plunge in exports over the past few months. Are they burying themselves in billions worth of liquefaction trains that will never return the investment, or are they cleverly playing the long game? U.S. LNG export capacity was three times that of the actual exports last month, the Energy Information Administration said earlier in August. These…