Then once you have an answer to that question, that might point you towards what you want to be long.
Only a few of them will matter on a day-to-day basis if you're currently in the US with assets valued in USD.
If oil is sold in dollars, that only has to affect dollar demand for the time it takes to transit through some other currency to dollars to oil. So however long that takes to settle.
Where do the additional demand components come from? Why do countries have to buy US treasuries to be able to buy oil? Don't they just have to use dollars for the transaction?