On 8/28/14, Vanguard Natural Resource LLC's 7.625% Series B Cumulative Redeemable Perpetual Preferred Units ( VNRBP) will trade ex-dividend, for its monthly dividend of $0.1588, payable on 9/15/14. As a percentage of VNRBP's recent share price of $24.98, this dividend works out to approximately 0.64%, so look for shares of VNRBP to trade 0.64% lower — all else being equal — when VNRBP shares open for trading on 8/28/14. On an annualized basis, the current yield is approximately 7.64%, which compares to an average yield of 6.95% in the "Energy" preferred stock category, according to Preferred Stock Channel.As of last close, VNRBP was trading at a 0.24% discount to its liquidation preference amount, versus the average premium of 8.89% in the "Energy" category. The chart below shows the one year performance of VNRBP shares, versus VNR: Below is a dividend history chart for VNRBP, showing historical dividends prior to the most recent $0.1588 on Vanguard Natural Resource LLC's 7.625% Series B Cumulative Redeemable Perpetual Preferred Units: According to the ETF Finder at ETF Channel, Vanguard Natural Resource LLC ( VNR) makes up 7.85% of the Junior MLP ETF (MLPJ) which is trading relatively unchanged on the day Tuesday. In Tuesday trading, Vanguard Natural Resource LLC's 7.625% Series B Cumulative Redeemable Perpetual Preferred Units ( VNRBP) is currently up about 0.2% on the day, while the common shares ( VNR) are trading flat.