Robert Zimmerman

US refiners operate in a volatile business. Some offer dividends, others safety, and others a mix of both. With a possible decline in the price of light sweet crude oil, refiners may enjoy a profitable run. Here are three refiners to consider.

These three Canadian oil and natural gas companies have languished since 2011. Do any of them have what it takes to turn themselves around?

Once thought to be in decline, oil production from the Gulf of Mexico looks to grow. Here are three companies giving the Gulf a new lease on oil life.

The South China Sea holds substantial reserves of crude oil and natural gas. Who is profiting from the exploration and production of these assets?

Penn West has opportunities for becoming a profitable company for its investors. Here are three examples.

Penn West Exploration underperformed the market for more than two years; new management looks to change that. To pull it off, Penn West must address some corporate weaknesses.

A single disappointing earnings report can clobber a stock's price. If the underlying business is sound and you're willing to invest for the long haul, these drops can be buying opportunities. Here are two examples.

Frontier energy markets add significant reward potential to a portfolio...and risk.