Had something written up but felt this was easier...
(edit, and then just added extra anyway!)
TLDR Sri Lanka short on fuel for several months now, people waiting at empty petrol stations for days on end, 28th June the official register-for-token system came in for limiting petrol to essential services because there's actually not enough to go round.
Source : the MSM at the time as it was happening, though many might have missed it, coverage competing with all the other crises going on.
But for completeness, a link
COLOMBO (News 1st); Sri Lanka has decided to implement a token system dedicated for filling stations to supply fuel for motorists waiting in - Get the latest breaking news and top stories from Sri Lanka, the latest political news, sports news, weather updates, exam results, business news...
www.newsfirst.lk
Not as far as I can tell linked to vaccine passports, and rioting suggests that it's not much good for controlling the people...
If there's a conspiracy to be had then it's Russia engineering themselves a newly dependent territory.