Here are some my observations about oil prices (Brent spot):

- Avg. price in March — $38.21/bbl. vs $44.14/bbl. in April;

- Avg. price after Doha meeting — $43.24/bbl. vs $39.61/bbl. In April before Doha talks;

- Minimum after Doha meeting — $41.64/bbl. vs $35.88/bbl. In April before Doha talks;

- Maximum after Doha meeting — $44.10/bbl. vs $43.02/bbl. In April before Doha talks.