Editor's note: The following are questions received from viewers of "Mad Money," seen every day at 6 p.m. EST on CNBC.

What is the best way to play a continued rise in oil prices?-- Jeff from Missouri

James J. Cramer:

In my opinion, the best upside potential lies in the services and infrastructure names like

Halliburton

(HAL) - Get Report

and

Foster Wheeler

(FWLT)

, both of which I own for my charitable trust

Action Alerts PLUS.

For most viewers, the individual names in the alternative energy space are best used as trading vehicles. Those with a long-term outlook should consider putting together a basket of the top names in the space.

Want more Cramer? Check out Jim's rules and commandments for investing from his latest book by

clicking here

.