"Rio de Janiero-based Petroleo Brasileiro S.A. (NYSE: PBR) is in the heart of the global growth story," says Daniel Frishberg, BizRadio host and editor of The MoneyMan Market Newsletter.

"In general, investors are still seeing selloffs as buying opportunities even though the majority of stocks are in a bear market. We are not sure how long this can continue.

"Our 'Crazy Investor Index' does not yet show the type of extreme fear that is typical at a bottom, so it will probably mill around in short-term rallies and selloffs until something motivates them to panic simultaneously.

"In the meantime, we prefer to buy excellent companies just as the herd decides to stampede. And while our portfolio is now slightly net short we are adding one new long position: Petroleo Brasileiro S.A., often referred to as Petrobras.

Leading advisor Jack Adamo, editor of Insiders Plus, reports that a Goldman Sachs analyst has chosen one of the stocks on his newsletter's buy list -- ConocoPhillips (NYSE: COP) -- as his top pick in the energy sector.

"There was an extremely interesting piece recently in Barron's by the oil analyst at Goldman Sachs who predicted $100 oil back in late 2004. We'd been buying energy stocks for almost a year at that point, but, although I expected oil prices to rise, I had no idea they'd go this high.

"In any case, the analyst, whose name is Arjun Murti, said he expects oil to reach $150 to $200 sometime within the next 24 months. The low end of that range is only a Middle East incident away, but the high end still seems like a reach, especially given weakening economic conditions.

"Recent weakness in commodities is just a pause to breathe , not the beginning of the end," says Yiannis Mostrous in Vital Resource Investor. His favorite copper play? Freeport-McMoRan Copper & Gold (NYSE: FCX).

"Most investors aren't able to grasp this commodities cycle's massive potential. The main reason is that few investors are willing to accept the big transformation that's taking place in several emerging market economies, led by China and India.

"We've been advocating this change for quite some time. And after several years of doing so, investors are more receptive. However, they're not totally convinced yet.

"This is the main reason this bull market in emerging markets and commodities has another strong leg up before it reaches all-time highs. But we're far from that point. Meanwhile, copper remains one of our favorite metals.

"Our long-standing recommendation to take advantage of copper's strength is Freeport-McMoRan Copper & Gold. Copper suffered from supply challenges along with investors' underestimation of its potential early in the year.

"One of my favorite indicators for the energy markets is the quarterly conference calls and earnings releases from Schlumberger (NYSE: SLB)," says energy sector expert Elliott Gue.

In his The Energy Strategist, he explains, "In this quarter's call, Schlumberger's management team was notably upbeat, the most positive on industry growth expectations in more than a year. This is a key shift in sentiment that has broader implications for the energy patch at large."

"Schlumberger's reports and conference calls have proved extraordinarily useful in the past for determining the most profitable trends and investment themes. The reason for that is simple: Schlumberger is the largest oilfield services company and has its hand in just about every imaginable market all over the world.

"In addition, the company has traditionally offered long, detailed conference calls; CEO Andrew Gould often relates far more than the outlook for Schlumberger and offers considerable color and detail concerning trends for the industry in general.

"This quarter's conference call was no exception. Schlumberger's outlook this quarter was far more upbeat than in its third and fourth quarter 2007 earnings calls.

"You must own some gold in this economic environment," emphasizes natural resources authority Larry Edelson who sees the recent setback in gold prices as "an ideal time to buy."

The editor of Real Wealth offers two "core" favorites for those seeking to invest in the sector: streetTRACKS Gold Trust (NYSE: GLD) and Yamana Gold (NYSE: AUY). Here is his review.

"Gold represents the epitome of the natural resource boom. It is the world's best barometer of inflation and financial crises. When inflation is on the rise, as it is now all over the world, gold thrives.

"And when there are financial crises, as we now have with the plunging dollar and the meltdown in the mortgage markets in the U.S. - gold gets an extra boost. Savvy investors flock to the safety of the precious metal, pushing its price even higher.

"In addition, there's more to the bull market in gold than just inflation and financial problems in the United States. Three billion new consumers in Asia are buying gold hand over fist! Previously in China, investors were not allowed to own gold. Now they can, and they are buying up gold like crazy.

"A once in a lifetime super bull market in commodities is underway," note resource experts Mary Anne and Pamela Aden. Here, the advisors look at some favorite commodity stocks in their The Aden Forecast.

"Commodities are in a mega super rise is because of the dramatic changes in the global economy. The rise that started in commodities in 2001 has continued to expand over the years and we believe the upmove is just warming up and it has years to run.

"There are several reasons for this. The weakening dollar and low interest rates have certainly helped push up the whole sector while investment demand grew as an inflation hedge. But the key reason why the commodities are in a mega super rise is because of the dramatic changes in the global economy.

For 25 years, Steven Halpern, editor of TheStockAdvisors.com, has surveyed the leading financial newsletter advisors asking for their favorite stocks for the coming year. This article is one of 100+ ideas in the Best Stocks for 2008 report.

"My top conservative play for 2008 is a repeat of my top pick from last year, StreetTracks Gold Trust (NYSE: GLD)," says Mark Leibovit, editor of VRYTrader and last year's #1 rated market timer by Timer Digest.

"StreetTracks Gold seeks to reflect the performance of the price of gold bullion, less the trust's expenses. The trust holds gold, and is expected to issue baskets in exchange for deposits of gold, and to distribute gold in connection with redemption of baskets.

"The gold held by the trust will only be sold on an as-needed basis to pay trust expenses, in the event the trust terminates and liquidates its assets, or as otherwise required by law or regulation. The trust is not managed like an active investment vehicle, and it's not registered as an investment company under the Investment Company Act of 1940.