Crude oil prices may end this week in the green as the U.S. Treasury suggested the weak first-quarter GDP data may be revisable and as supply concerns persisted. If the benchmarks do indeed end the week with gains, it would be the first positive week in three. "The U.S. economy continues to perform very, very well," Janet Yellen told Reuters yesterday commenting on the latest economic reports out. Those showed a GDP growth rate of just 1.6% for the first quarter and an accelerated inflation rate of 3.7% in personal consumption expenditures.…
