From a technical perspective, Antero Resources (AR) is looking like an interesting pick, as it just reached a key level of support. AR recently overtook the 200-day moving average, and this suggests a long-term bullish trend.A useful tool for traders and analysts, the 200-day simple moving average helps determine long-term market trends for stocks, commodities, indexes, and other financial instruments. It moves higher or lower in conjunction with longer-term price performance, and serves as a support or resistance level.Shares of AR have been moving higher over the past four weeks, up 12.1%. Plus, the company is currently a Zacks Rank #2 (Buy) stock, suggesting that AR could be poised for a continued surge.The bullish case solidifies once investors consider AR's positive earnings estimate revisions. No estimate has gone lower in the past two months for the current fiscal year, compared to 6 higher, while the consensus estimate has increased too.Investors should think about putting AR on their watchlist given the ultra-important technical indicator and positive move in earnings estimate revisions.Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Antero Resources Corporation (AR): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research