From a technical perspective, Suncor Energy (SU Quick QuoteSU - Free Report) is looking like an interesting pick, as it just reached a key level of support. SU recently overtook the 20-day moving average, and this suggests a short-term bullish trend.

The 20-day simple moving average is a popular investing tool. Traders like this SMA because it offers a look back at a stock's price over a shorter period and helps smooth out price fluctuations. The 20-day can also show more trend reversal signals than longer-term moving averages.

The 20-day moving average can show signals that are similar to other SMAs as well. If a stock's price is moving above the 20-day, the trend is considered positive. When the price falls below the moving average, it can signal a downward trend.

Over the past four weeks, SU has gained 6.7%. The company is currently ranked a Zacks Rank #1 (Strong Buy), another strong indication the stock could move even higher.

The bullish case solidifies once investors consider SU's positive earnings estimate revisions. No estimate has gone lower in the past two months for the current fiscal year, compared to 1 higher, while the consensus estimate has increased too.

Given this move in earnings estimate revisions and the positive technical factor, investors may want to keep their eye on SU for more gains in the near future.