"Despite coming close to bankruptcy in 2002, Williams Co. (NYSE: WMB) has some of the premier assets in each of its business segments: exploration & production, mid-stream and pipelines," says turnaround expert George Putnam.

In his The Turnaround Letter, he explains, "The company now has the financial strength not only to survive the current downturn but to grow and prosper."

"Begun in 1908 as a pipeline construction company, Williams is now a major, integrated natural gas company; it produces, gathers, processes and transports natural gas throughout the United States.

"National Oilwell Varco (NYSE: NOV), a buy in our 'Wildcatters portfolio,' will see an outsized benefit from improving conditions in the global oil market," says Elliott Gue in The Energy Strategist.

"Rig technology is the crown jewel of National Oilwell's business; the unit builds key equipment used on land and offshore drilling rigs.

"The unit is currently benefiting from the boom in deepwater drilling activity -- one of the only drilling markets that continue to see growth.

"Equipment used on deepwater drilling rigs is far more complex and expensive than that used on land or shallow-water rigs. As a result, selling equipment into the deepwater market carries far higher profit margins for National.

When Charles Dickens wrote, "Bring in the bottled lightning, a clean tumbler and a corkscrew," it's safe to say the great English novelist wasn't referring to energy technology. But in the 21st century we know that a whole lot of bottled lightning can be uncorked using a variety of sophisticated devices -- and one of the most interesting types is fuel cells.

Today we got lightning news from one of the best companies in the fuel cell space, the aptly named FuelCell Energy (NASDAQ: FCEL). Although the company reported lower product sales and revenues for fiscal Q2 of $19.3 million compared to $26.4 million in fiscal Q2 a year ago, it did say that the prior year product sales and revenues were unusually high due to timing.

"I have four Hurricane Season stock picks -- two bullish, two bearish -- to play this summer's potentially wild weather," says Sean Broderick in his Uncommon Wisdom advisory.

"Last year's stormy weather spawned 16 named storms, which was higher than the long-term average of about 10 tropical storms and six hurricanes per year in a typical Atlantic hurricane season.

"The major hurricane forecasters have now made their predictions, and it's for a 'moderate' hurricane season. That's good news for America's oil and gas industry.

"After enduring one of the worst slumps on record, we're beginning to see a rebound in all major commodities market," says Lee Lowell, adding "But one commodity stands out in particular -- natural gas."

In Xcelerated Profits Report, he explains, "This could represent the best buying opportunity in several years." Here's his review of the United States Natural Gas Fund (NYSE: UNG).

"As it so often does, it's no surprise to see the energy market leading commodities higher over the past few weeks -- specifically, crude oil and natural gas.

"Over the next five years the energy patch should offer some of the best investments around, and one standout is Schlumberger (NYSE: SLB)," says Stephen Leeb in The Complete Investor.

"Schlumberger, by a wide margin, is the best and most dominant. Its services range from well testing to pressure pumping to seismic testing, and it's No. 1 in virtually every area it occupies.

"Some of its operations, especially those that maintain the health of existing wells, are highly recession-resistant.

"Canadian energy giants Suncor Energy (NYSE: SU) and PetroCanada (NYSE: PCZ) announced their intention to merge; Suncor, a holding in our 'Wildcatters Portfolio' will be the surviving entity," says Elliott Gue.

In his The Energy Strategist, he explains, "The combined firm will be the fifth-largest energy company in North America and the largest in Canada." Here, he explains why the new stock remains a buy.

"The combined firm will have more financial flexibility than Suncor did on its own. Debt ratios will be healthier, and the combined firm will also be able to redirect certain planned capital expenditures to higher return potential projects.

Is it time to ride the rails? In Gordon Pape's The Internet Wealth Builder, analyst Tom Slee reaffirms his buy rating on Burlington Northern Santa Fe (NYSE: BNI), his top pick in the sector.

"Burlington Northern is my preferred choice in the railroad industry. At first glance, Burlington Northern had a particularly bad first quarter.

"Profit was $0.86 a share, down sharply from $1.30 a share the year before. However, when unusual items such as an unfavourable coal rate decision are excluded, operating earnings amounted to a much more acceptable $1.13 a share, well above the 96c analysts were looking for.

"As the global economy rebounds late this year or next year, demand for energy will rise again, sending prices of crude and natural gas higher," says growth and income expert Bryan Perry.

In his top-notch The Cash Machine, he explains, "With energy assets cheap by historical standards right now, I want to increase our exposure to LINN Energy LLC (NASDAQ: LINE), a best-in-class inflation hedge."

"Founded in 2003, LINN is an independent oil and gas Master Limited Partnership (MLP) that completed its initial public offering (IPO) in January 2006.

Energy sector specialist Elliott Gue sees opportunity in Transocean (NYSE: RIG), a leadin player in the deepwater drilling area. Here's the latest advice from The Energy Strategist.

"The market for deepwater rigs, however, has remained resilient and one drilling with direct leverage to deepwater rigs is US giant, Transocean, the world's largest offshore drilling company, with 136 rigs as well as ten under construction.

"Roughly 68 of those rigs are 'semisubmersibles,' and 39 are ultra-deepwater or deepwater rigs capable of drilling many of the complex plays being targeted around the world today.

"Zero greenhouse gas emissions, 90% average availability as a power source, minimal land requirements and competitive costs: those are just a few of the advantages of geothermal power," explains Roger Conrad.

In his leading-edge New World advisory, he looks at one favorite play on the sector: Ormat Technologies (NYSE: ORA), which operates a dozen geothermal plants worldwide.

"Geothermal's chief disadvantage is geographical limitations to large-scale applications. Geothermal plants are mainly economic in areas of subsurface or volcanic activity.

It goes without saying, that the oil/oil services sectors are preferred here. Look for oil to remain a major fuel for propulsion for at least three more decades, even with alternative energy source development. And with the aforementioned in mind, Occidental Petroleum (NYSE: OXY) is worth a review.

Occidental Petroleum engages in oil/gas exploration and also makes basic chemicals, plastics, and petrochemicals. The company has proved reserves of 3 billion barrels of oil equivalent in three regions: U.S./North America, Middle East, and Latin America.

"The global oil and gas majors have been brutally wounded since energy prices peaked last July," observes resources expert Eric Roseman.

In his Commodity Trend Alert, he explains, "We believe it's safe to start accumulating these companies again. We're buying one of the largest and best-managed natural gas companies in the world – Encana (NYSE: ECA)."

The advisor notes, "Based in Calgary, Alberta, Encana is Canada's largest natural gas distribution company based on stock market capitalization and natural gas production.

"ECA produces approximately 4.4 billion cubic feet of gas equivalent per day. More than 80% is natural gas - the cleanest burning of all fossil fuels.

"We see smooth seas ahead for deepsea driller Oceaneering International (NYSE: OII)," says Richard Moroney.

The editor of the blue chip advisory, Dow Theory Forecasts, explains, "Most of the world's untapped oil reserves lie under the ocean floor, and oil producers are spending an increasing portion of their capital budgets on deepwater drilling."

"While oil prices don't directly affect Oceaneering International's profits and cash flows, they do move the stock. Oil prices fell by two-thirds in the second half of 2008, pushing Oceaneering shares under $20 for the first time since July 2005.

"Many experts believe that oil prices are at unsustainably low prices now, and they expect a sharp rise in the commodity price as supply and demand come back into line again," says turnaround expert George Putnam.

In The Turnaround Letter, he suggests, "If oil does begin to rise again, the oilfield service stocks could rebound sharply." Here, he takes a look at large cap plays on a rebound within the oilfield services sector.

"We all know that oil prices have fallen dramatically from their highs in the summer of 2008. But different types of oil-related stocks have reacted quite differently to the price change in the underlying commodity.

"For example, while oil itself has dropped nearly 70% from its 12-month high, the stock of the largest integrated oil company, Exxon-Mobil (NYSE: XOM), is down only 26%, less than the stock market as a whole.