Looking at the universe of stocks we cover at Dividend Channel, on 12/13/13, Patterson-UTI Energy Inc. ( PTEN) will trade ex-dividend, for its quarterly dividend of $0.05, payable on 12/31/13. As a percentage of PTEN's recent stock price of $23.37, this dividend works out to approximately 0.21%.Below is a dividend history chart for PTEN, showing historical dividends prior to the most recent $0.05 declared by Patterson-UTI Energy Inc.: In general, dividends are not always predictable; but looking at the history above can help in judging whether the most recent dividend from PTEN is likely to continue, and whether the current estimated yield of 0.86% on annualized basis is a reasonable expectation of annual yield going forward. The chart below shows the one year performance of PTEN shares, versus its 200 day moving average: Looking at the chart above, PTEN's low point in its 52 week range is $17.25 per share, with $25.48 as the 52 week high point — that compares with a last trade of $23.37. According to the ETF Finder at ETF Channel, PTEN makes up 2.78% of the SPDR S&P Oil & Gas Equipment & Services ETF ( XES) which is trading lower by about 0.1% on the day Wednesday. In Wednesday trading, Patterson-UTI Energy Inc. shares are currently off about 0.4% on the day.