Looking at the universe of stocks we cover at Dividend Channel, on 5/1/13, Blueknight Energy Partners L P ( BKEP) will trade ex-dividend, for its quarterly dividend of $0.1175, payable on 5/15/13. As a percentage of BKEP's recent stock price of $8.88, this dividend works out to approximately 1.32%, so look for shares of Blueknight Energy Partners L P to trade 1.32% lower — all else being equal — when BKEP shares open for trading on 5/1/13.Below is a dividend history chart for BKEP, showing historical dividends prior to the most recent $0.1175 declared by Blueknight Energy Partners L P: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from BKEP is likely to continue, and whether the current estimated yield of 5.29% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of BKEP shares, versus its 200 day moving average: Looking at the chart above, BKEP's low point in its 52 week range is $6.08 per share, with $9.50 as the 52 week high point — that compares with a last trade of $8.88. According to Preferred Stock Channel, there is a series of preferred stock that is senior to BKEP, which trades under the symbol BKEPP — more info ». In Monday trading, Blueknight Energy Partners L P shares are currently up about 0.1% on the day.