I think it is simple. Oil can be sold across world but NG is only US play. Global economy will expand by 1.6% this year meaning in total world need more or less oil. US economy is contract by 5% this year meaning stock piles of NG sitting in US do not have much demand.
T Boones car may run on Nat Gas, but mine does not. Wicked long time for a conversion that means anything in this arena. Storage is maxing out, and nothing has happened short term to signal a spike in demand. Probably a great play long term at these prices, but this is not a buy and hold place to be.