Investment banks often provide a list of their "Best Buy" ideas as the year rolls along. Stifel Nicolaus recently let investors in on seven of its best energy ideas which included Anadarko Petroleum (NYSE:APC), Canadian Natural Resources (NYSE:CNQ), EOG Resources (NYSE:EOG) and Southwestern Energy (NYSE:SWN). Looking at the list of seven companies, our energy analysts decided to rank their top three oil and natural gas producers.

All of these energy companies have the majority of their operations in the United States. EOG Resources is a leading producer in the Eagle Ford, while Southwestern Energy is a top name in Marcellus shale natural gas production. Was the recent ruling against Anadarko Petroleum a factor in our analysts rankings of Stifel's choices? Check out the short clip below to find out. 

This segment is from Tuesday's edition of "Digging for Value," in which sector analysts Joel South and Taylor Muckerman discuss energy and materials news with host Alison Southwick. The twice-weekly show can be viewed on Tuesdays and Thursdays. It can also be found on Twitter, along with our extended coverage of the energy & materials sectors @TMFEnergy.

Joel South has no position in any stocks mentioned. Taylor Muckerman has no position in any stocks mentioned. The Motley Fool owns shares of EOG Resources. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.