I would guess that Russian oil is cheap to buy in bulk at the moment since they have plenty of supply but not as much demand as usual due to sanctions. Also the Russians need to raise cash fast to fund the war effort.
Saudi has been charging a high price for their own oil since the demand is high.
Russia’s making MORE now selling oil and gas than they were before the war. The sanctions just increased prices and smuggling/cheating. This was inevitable since people still need energy and due to Gaia Worship, the US and EU have decided to hamstring their own energy production.
I've read that you can't just "shut off" oil wells.
It's apparently not a good idea, and could lead to the flow just totally stopping.
Correct me if I'm wrong about this, oil freepers.