With the S&P 500 and Nasdaq still near record highs now may be a good time to scope out utility stocks which can serve as defensive investments in case of an eventual correction.Utility stocks are deemed defensive as electricity, water, and gas services are essential regardless of the broader economic conditions. Seeing as their services have consistent and stable demand, it's noteworthy that three utility stocks were added to the Zacks Rank #1 (Strong Buy) list over the last week.National Fuel Gas Company ...