Oil prices fluctuate on US reserve refilling plan and supply concerns.

Oil prices remain steady as the International Energy Agency (IEA) raised its forecast for global oil demand this year by 200,000 barrels per day (bpd) to a record 102 million bpd, while weaker than expected Chinese economic data countered the bullish factor. Refinery throughput in China rose by 18.9% in April from a year earlier, helping to keep a floor under crude prices. On the supply side, widespread blazes in Alberta, Canada, shuttered at least 319,000 barrels of oil equivalent per day (boepd), representing 3.7% of national production.