Here's something I'm not sure I get it right. They source it from Bloomberg.
https://www.aljazeera.com/economy/2022/2/22/russian-oil-sells-at-deep-discount-on-ukraine-crisis
It seem to be say how the Russian oil price (the Urals at least) plummeted. But it also says compared to "regional Dated Brent benchmark". But Brent price goes up - elsewhere I found it's now ~$96. Which means this is a relative fall for the Urals. It doesn't really go down, just as the Brent goes up, it stays the same. To me it seems it's a play on words and twisting the viewpoint. They make it look like the Brent is fixed, and since there's movement, it seems the Urals goes down. So it's just the question of comparison.
No?