Looking at the universe of stocks we cover at Dividend Channel, on 12/11/15, New Jersey Resources Corp (NJR - Get Report), Just Energy Group Inc. (JE), and Northwestern Corp. (NWE) will all trade ex-dividend for their respective upcoming dividends. New Jersey Resources Corp will pay its quarterly dividend of $0.24 on 1/4/16, Just Energy Group Inc. will pay its quarterly dividend of $0.125 on 12/31/15, and Northwestern Corp. will pay its quarterly dividend of $0.48 on 12/31/15.

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As a percentage of NJR's recent stock price of $29.80, this dividend works out to approximately 0.81%, so look for shares of New Jersey Resources Corp to trade 0.81% lower — all else being equal — when NJR shares open for trading on 12/11/15. Similarly, investors should look for JE to open 1.75% lower in price and for NWE to open 0.88% lower, all else being equal.

Below are dividend history charts for NJR, JE, and NWE, showing historical dividends prior to the most recent ones declared.

New Jersey Resources Corp (NJR - Get Report):

NJR+Dividend+History+Chart

Just Energy Group Inc. (JE):

JE+Dividend+History+Chart

Northwestern Corp. (NWE):

NWE+Dividend+History+Chart

In general, dividends are not always predictable, following the ups and downs of company profits over time. Therefore, a good first due diligence step in forming an expectation of annual yield going forward, is looking at the history above, for a sense of stability over time. This can help in judging whether the most recent dividends from these companies are likely to continue. If they do continue, the current estimated yields on annualized basis would be 3.22% for New Jersey Resources Corp, 7.00% for Just Energy Group Inc., and 3.51% for Northwestern Corp..

In Wednesday trading, New Jersey Resources Corp shares are currently up about 0.1%, Just Energy Group Inc. shares are up about 0.7%, and Northwestern Corp. shares are up about 0.2% on the day.