Just your usual 40-50 cent drop in seconds
It had recovered from an earlier spill around the Russian headlines but now it's fallen off the shelf.
Brent crude 5m chart
Looking further out, 49.69 was the low in March and we've pulled up there again.
Brent daily
The fact we're holding those lows (for now) suggests that this move was just a stop run through $50. The strength of any bounce will be the test though.