RealMoney Radio Mailbag: Quite Diverse

Editor's note: The following are questions received from listeners of "RealMoney Radio." To send Cramer a question about topics from his radio show, click here. Listen to Cramer's latest radio show by clicking here.

I have Ultra Petroleum, Station Casinos (STN) - Get Report, Garmin (GRMN) - Get Report, Novastar Financial (NFI) and Pharmaceutical Product Development (PPDI) . Am I diversified?-- Jake in Minnesota

James J. Cramer

: Let's see. You have an energy stock, a gaming stock, a technology stock, a financial and a pharmaceutical company. This is the definition of diversification.

What natural gas drillers do you recommend?-- Kevin in Ohio

James J. Cramer

: On the natural gas side of the drilling business, I think you have to consider

Grey Wolf

(GW)

, which is a land driller in the continental U.S., and

Nabors

(NBR) - Get Report

, which is a larger company with a big focus on natural gas.

Both of these stocks have made quite a run, but if natural gas prices continue to appreciate, I think these stocks will continue to ramp.