Gas Etf Is There An Ultra Long Etf For Natural Gas?

Is there an ultra long etf for natural gas? - gas etf

Be TRAINING regularly over a long nat gas ETF, but seek the ULTRA LONG ETF with nat gas .... Only pure natural gas, not an ETF's Director General for Energy and Oil and Gas ETF
if there is none, there is an ultra-short ETF nat gas ... I think it would short-circuit the same as the purchase of a very long