This article is part of our Rising Stars Portfolio series.

This week, Fool writer Morgan Housel urged us to ignore the noise, and instead focus on the fundamental value of the companies we are invested in. Heeding this advice, Rising Star Alex Pape bought shares in a company that I'm sure he'd be happy to hold if the market shut down for 10 years. Below you'll hear more about Alex's tried and true investment idea, in addition to summaries of five additional stock recommendations.

Rising Star Buy: Berkshire Hathaway
Admitting that he's "always happy to put my extra dollars to work under the supervision of the world's greatest investor," Alex bought shares of Berkshire Hathaway (NYSE: BRK-B) this week for his Young Gun Portfolio. Sometimes, it makes sense to make things easy by investing in proven greatness.

Berkshire is all the more attractive to Alex because it is looking cheap these days. From a variety of different perspectives, Berkshire's valuation appears very attractive to Alex, who believes this investment is a "no-brainer." As a Berkshire investor myself, I'd have to agree. But don't take my word for it. Read Alex's article to hear his complete thesis.

Rising Star Buy: ATP Oil & Gas
Rising Star Dan Dzombak opened a two-year LEAP position in ATP Oil & Gas (Nasdaq: ATPG) for his portfolio. Dan feels there's a very good chance of an outsized payoff with this one, so watching this position should be interesting.

Dan likes ATP for a variety of reasons. First, it is cheap, according to industry standard measures. Second, it has strong and aligned management. And finally, Dan sees three catalysts that may increase the valuation of this company. To learn more about Dan's thinking and to see why he's chosen to purchase a LEAP position, read his complete article.

Rising Star Buy: A Basket of Energy Stocks
Rising Star Jordan DiPietro bought the following energy stocks for his portfolio this week: Petrobras (NYSE: PBR), Schlumberger (NYSE: SLB), Diamond Offshore Drilling (NYSE: DO), and El Paso (NYSE: EP). He believes that this basket of energy stocks is "a great way to play the rising tide" of higher oil and gas prices.

Jordan feels strongly that each of the companies mentioned above "should continue to see a rebound from the previously depressed market (due to the BP debacle) and a continued need and demand for oil and gas." With overall macro trends suggesting sustained increases in demand for energy, these companies will benefit from that as well. To hear a more detailed case for each of the recommended companies, read Jordan's article.

So long, "Jersey Shore"?
Morgan Housel suggested that one way to ignore the noise might be to get rid of cable TV, so you wouldn't need to listen to all the silliness from the likes of CNBC and other financial channels. Such a move would also provide all of us with more time to research stocks and do all those other things we can never quite find the time for.

Remember to follow me on Twitter to get all of our latest Rising Star content. You can also click the links below to start following all of the stocks mentioned above.

This article is part of our Rising Star Portfolios series, where we give some of our most promising stock analysts cold, hard cash to manage on the Fool's behalf. We'd like you to track our performance and benefit from these real-money, real-time free stock picks. See all of our Rising Star analysts (and their portfolios).

John Reeves owns shares of Berkshire Hathaway. And while Morgan Housel got rid of his television this week, John watched his first-ever episode of Jersey Shore. Berkshire Hathaway is a Motley Fool Inside Value recommendation and a Motley Fool Stock Advisor pick. Petroleo Brasileiro is a Motley Fool Income Investor recommendation. The Fool owns shares of all of the companies mentioned above. 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.