Russian Rouble is the best performing currency at the moment: https://finance.yahoo.com/news/1-rouble-firms-past-59-105616499.html List of currency performances: http://fingfx.thomsonreuters.com/gfx/rngs/GLOBAL-CURRENCIES-PERFORMANCE/0100301V041/index.html
Of course you have. I went long 77 CL contracts on Apr. 21st, 2020, and have been rolling them ever since. If you want proof of my live trade, just look at a CL chart.
Of course b/c Russia now demands payment in Roubles for its exports of oil, gas, and some more products like wheat.