The shares of Union Pacific (UNP), which I first discussed here on March 27, 2009, at a price of $43, have failed three times this winter to break through major, psychological resistance at $100. Needless to add, if you haven't already, now may be a good time to consider taking some profits if you're in near $43.

However, those investors who can tolerate the risk can maintain their full position in UNP, but keep in mind that the journey to $120 probably will not be completed in 2011.

"Once written off as a 'sunset' industry, North American railroads are making money hand over fist. In short, the railways are benefiting from a rising tide and the companies have a lot going for them," notes Canadian analyst Tom Slee.

The contributing editor with Internet Wealth Builder explains, "Here's a look at my newest recommendation, Canadian Pacific Railway (CP), as well as my long-time favorite, Canadian National Railway (CNI).

"Last year the six major carriers posted a 45% average growth in earnings as they booked increased volumes and increased rates.

The shares of railroad company CSX Corp. (CSX), which I first wrote about on May 1, 2009, at a price of $30.56, have surged through $60 and $70 resistance levels, and now obviously would be a good time to consider taking some profits, if you're near $30 with CSX.

However, those investors who can tolerate the risk can maintain their full position with CSX, as there's more upside ahead.

Look for CSX's 2011 revenue to increase 6% to 8%, after a nearly 18% surge in 2010. Volumes should rise 5% to 7% this year, and overall prices for transport services should rise, albeit with some softness in selected price categories. Any above-trend U.S./global GDP growth rates will improve CSX's performance.

The contributing analyst with Internet Wealth Builder explains, "An upward movement in the Dow Industrials is only sustainable if confirmed by the Transports. As traders say, one 'makes', one 'takes'. Further, the Transports have led every major rally since 2004. So with our canary alive and well, I remain very encouraged."

"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.

"It's hard to find any good news these days but I was pleasantly surprised with the third-quarter railway results, as almost all of the 'class 1 carriers' reported better than expected earnings," notes analyst Tom Slee.

The contributing editor to Gordon Pape's Internet Wealth Builder explains, "Several rail stocks are starting to look attractive at these depressed levels and Burlington Northern (NYSE: BNI) remains my preferred choice in the group." Here's his outlook.

"Even with the economic downturn starting to bite, reduced fuel costs and increased freight rates offset lower volumes. Equally important, the companies remain cautiously optimistic despite the miserable outlook.

"They are confident that further freight rate price increases in the 4% to 5% range are sustainable and will still allow them to undercut inefficient truckers.

"Unfortunately, none of this prevented the stocks from being battered during the market collapse. However, I think that fourth-quarter profits are likely to remain strong and the longer term outlook for railroads remains favorable.

"Burlington Northern continues to power ahead. A shrinking economy must eventually take its toll but there was no sign of any weakness in BNI's third-quarter results. Operating earnings came in at $1.91 a share, up 29% from $1.48 in 2007.

CSX (NYSE: CSX), a transportation company whose competitors include Burlington Northern Santa Fe (NYSE: BNI), Norfolk Southern Corp. (NYSE: NSC), and Union Pacific Corp. (NYSE: UNP), reported earnings for the third quarter on Tuesday. The results weren't bad, driven in part by a drop in energy costs and an effort to keep costs under control.

Revenues increased 18%, approaching $3 billion. Earnings per share from continuing operations skyrocketed 40% to $0.94. As management pointed out, distributors are exploiting railways to the advantage of their supply chains. This is cool for shareholders of CSX, who obviously are hoping their company can successfully navigate the tough economic landscape that we're all trying to find maps for. And if oil prices continue to fall, then CSX may find it easier to manage its operations.

And there's another positive. According to this source, CSX beat analyst expectations by a penny. Unfortunately, according to that same source, management believes that it will hit the lower end of the spectrum in terms of its previous guidance. CSX is looking to earn between $3.65 and $3.75 per share for the fiscal year.

Taking everything together, I'm not sure I'd want to enter CSX at this time. It is well off the 52-week high, but it's not exactly near the 52-week low, either. Even though the energy picture might be moderating for the company, and even though its business does offer a compelling transportation service, I think a macro slowdown might send shares back toward the low. And according to this source, freight volume declined by over 2%. Problems in the automotive industry are negatively affecting CSX. Heck, problems in many industries will be with us for a while. CSX will see its operations pressured. And, again, that tells me that I'd have to see a big drop in the stock to find it attractive at this point.

Disclosure: I don't own any company mentioned; positions can change at any time.

"Railroads are a play on three big secular themes: the drive for increased energy efficiency, growth in coal and the agriculture boom," says Elliott Gue, a energy sector expert who has just returned from Japan where he was covering the G8 Summit.

Meanwhile, in his The Energy Srategist, he states, "Railroads are now among the most fuel-efficient forms of freight transport available." Here, he offers a bullish review of Union Pacific (NYSE: UNP).

"My long-held thesis on the group has been that the railroads are no longer totally dependent on the US economy for their growth.

"It's no longer appropriate to look at this sector as viciously economy sensitive. The traditional relationship between the broader market and the rails has been breaking down for several years, but this trend appears to be accelerating.

"In 2007, according to the Association of American Railroads (AAR), the average railroad moved a ton of freight a distance of 436 miles on a single gallon of diesel fuel. That makes freight trains roughly three to four times more fuel efficient than trucks.

"Union Pacific is the largest railroad in the US and has long been one of my favorites. The company's network is nearly 33,000 miles long and is concentrated in the West and Midwest. It also offers a convenient example of the bullish forces at work for the rails, particularly in the coal and agriculture industries.

"Having spent a lot of time recently studying the North American transportation industry, my conclusion is that trucking is on the decline while the railroads are poised to increase market share," notes Tom Slee.

The contributing editor to Gordon Pape's Internet Wealth Builder states, "The logical conclusion: buy rail stocks now." Here he looks at Kansas City Southern (NYSE: KSU) and Burlington Northern Santa Fe (NYSE: BNI).

"Who would have thought it? Railways are having a good year. They were supposed to be hunkered down, riding out the recession. Instead, the old iron horse is thriving.

"Surging demand for commodities is more than offsetting a slump in building materials shipments. Even higher energy costs are proving a plus for the railroads. Each jump in oil prices gives them a bigger edge over their gas guzzling competitors: trucks.

"Most important, the rails are able to raise rates despite the economic downturn. Their surcharges are sticking. Yet the stocks are out of favour.

"The railroad sector is one of the few reliable groups in today's market; with solid pricing power, these companies have a solid future moving forward," says contrarian Chris Johnson.

"We are adding CSX Corp. (NYSE: CSX) as a long position to the Insightful Investor portfolio. Here's his look at the stock, and an options play for those seeking leverage.

"Last week, our Earnings Tip Sheet highlighted CSX as a bullish pick ahead of earnings. The stock was positioned for a jump according to our Behavioral Valuation approach. One week and a positive earnings report later, we're looking to increase our exposure to the company.

"CSX has now reported earnings results that handily beat both the analyst forecast and the whisper number. The company overcame softness in some sectors through increased shipments in ethanol and grain as well as increased foreign demand for coal.

"Rail companies appear strong moving forward, given that rising crude oil prices are forcing companies to use more cost-efficient means to ship their goods.

"What's more, CSX was the first of the 'big four' rail companies to report earnings. The company should thus benefit from positive reports when its competitors enter the earnings confessional.

Railroad giant CSX Corporation (NYSE: CSX) recorded record revenue of $10 billion for FY2007, the first time the company has crossed that threshold. CSX also posted record gains for 4Q 2007. EPS increased 15% to $0.86 per share on net earnings of $365 million. 4Q operating income increased over $100 million to $609 million.

CSX posted good revenue and productivity growth despite being hit with big increases in fuel costs. The company also posted significant improvements in its safety record. Over the past three years, CSX has posted the highest share price gain of any major railroad in North America, gaining 10% in just the last two days.

CSX CEO Michael Ward forecasts double-digit growth in both operating income and EPS for 2008. The stock currently trades in the mid-40s and may be worth a look for investors seeking some stability in the stock market.