Energy prices continue to tumble on recession fears and a US dollar rally. For investors that are long-term bullish on energy markets, this represents a great buying opportunity, says Andrew Snyder. He expects coal producers like Massey (NYSE:MEE), Peabody (NYSE:BTU) and James River Coal (NYSE:JRCC) to see big increases in their valuations in the coming year.

Jim Stanton says two clean-energy ETFs that look undervalued right now are PBW and GEX. He also recommends FAN for a more wind-specific ETF.

Eric Roseman in The Sovereign Society says, “until the deflation […] ceases, commodities will remain vulnerable. Never in the history of capitalism have commodity prices rallied during a severe contraction in bank credit.”

Floyd Brown at Investment U says Pickens has a history of being in the right place and the right time and profiting handsomely. Floyd has picked four stocks to help you follow Pickens’ lead into natural gas and wind energy…