Oil's 6% rally largest since Feb - BBH

Analysts at Brown Brothers Harriman noted that May crude oil peaked on March 18 near $42.50. It fell to $35.25 on April 5.

Key Quotes:

"The rebound to $39.85 before the weekend completed a 61.8% retracement of the decline.

The 6% rally before the weekend was the largest advance since February. The technical indicators suggest there is potential to return to the $42.50 high and possibly toward $44.00-$45.00."