Common use of Method for Exercising the Option Clause in Contracts

Method for Exercising the Option. The Option may be exercised in whole or in part only by delivery in person or through certified or registered mail to the Company at its principal office in Houston, Texas (attention: Corporate Secretary) of written notice (attached hereto as Exhibit A) specifying the Option that is being exercised and the number of shares of Common Stock with respect to which the Option is being exercised. The notice must be accompanied by payment of the total Option Price. The total Option Price for the Common Stock to be acquired pursuant to the Option shall be paid in full by any of the following methods or any combination of the following methods:

Method for Exercising the Option. The Option may be exercised in ----------------------------------- whole or in part only by delivery in person or through certified or registered mail to the Company at its principal office in Houston, Texas (attention: Corporate Secretary) of written notice (attached hereto as Exhibit A) specifying the Option that is being exercised and the number of shares of Common Stock with respect to which the Option is being exercised. The notice must be accompanied by payment of the total Option Price. The total Option Price for the Common Stock to be acquired pursuant to the Option shall be paid in full by any of the following methods or any combination of the following methods: