Looking at the universe of stocks we cover at Dividend Channel, on 12/3/13, Seadrill Ltd ( SDRL) will trade ex-dividend, for its quarterly dividend of $0.95, payable on 12/20/13. As a percentage of SDRL's recent stock price of $42.86, this dividend works out to approximately 2.22%, so look for shares of Seadrill Ltd to trade 2.22% lower — all else being equal — when SDRL shares open for trading on 12/3/13.Below is a dividend history chart for SDRL, showing historical dividends prior to the most recent $0.95 declared by Seadrill Ltd: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from SDRL is likely to continue, and whether the current estimated yield of 8.87% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of SDRL shares, versus its 200 day moving average: Looking at the chart above, SDRL's low point in its 52 week range is $34.57 per share, with $48.09 as the 52 week high point — that compares with a last trade of $42.89. According to the ETF Finder at ETF Channel, SDRL makes up 3.93% of the Oil Services ETF ( OIH) which is trading relatively unchanged on the day Friday. In Friday trading, Seadrill Ltd shares are currently up about 0.1% on the day.