WARNING: Read me before buying OOO, page-416

OOO trading 19% above NAV currently. There appears to be no market makers managing this ETF.

June futures contract is now trading at 11.00. July is at 21. If the June contract goes the same way as the May contract then OOO is essentially finished. Even if it doesn't the current roll cost between monthly contracts is extreme (Jun to July is 50%!). OOO is done unless the spot price rockets from here.

OOO is not a buy & hold vehicle in this environment, you will burn most of your capital very quickly.
Short term futures in general cant be used for buy & hold when in extreme contango.