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.