Here’s one from back in May, also from Reuters, that includes Russian ESPO grade oil (which sells for more than their higher volume Urals grade).
“According to Reuters calculations, the average price of Russia’s mix of Urals and ESPO blends dipped on May 2 to $48.92 per barrel, or 3,987 roubles, which is more than 40% below the 6,726 roubles the government had originally planned for this year.”
You’re getting closer, but best to not use Reuters as they’re clearly a ‘player’.