Eagle & Beagle

Chesapeake Energy Corp., the target of recent withering criticism, is in the midst of major changes. The board of directors is being remade as the company sells assets to pay down debt.

Meanwhile, Wall Street signaled last week that the stock is undervalued.

CHK shares jumped 17.8 percent in the last five trading days, closing Friday at $18.36.

Whether traders are following Carl Icahn's lead to buy CHK or signaling that they like the changes, long-term shareholders must be pleased with the recent gains.

Beagle

In a quick trip from the penthouse to the doghouse, our beagle this week is just seven days removed from winning top billing in this column.

Oklahoma City-based PostRock Energy Corp. managed to eke out a gain in one of Wall Street's worst weeks, and earned eagle status a week ago.

But during the stock market's winningest week of 2012, the thinly traded stock slipped 12.5 percent. It closed Friday at $1.81.

The company produced no significant news during the period, but gave back all its gains of the previous week and then some.

Eagle & Beagle is a weekly look at the state's high-performing (eagle) and low-performing (beagle) by Business Writer Don Mecoy.