Common use of Right to Exercise Warrants Clause in Contracts

Right to Exercise Warrants. Each Warrant may be exercised from the date of this Agreement until 5:00 P.M. (Pacific time) on September 14, 2006 (the "Expiration Date"). Each Warrant not exercised on or before the Expiration Date shall expire. Each Warrant shall entitle its holder to purchase from the Company one share of Common Stock at an exercise price of $0.25 per share, subject to adjustment as set forth below ("Exercise Price"). The Company shall not be required to issue fractional shares of capital stock upon the exercise of this Warrant or to deliver Warrant Certificates, which evidence fractional shares of capital stock. In the event that a fraction of an Exercise Share would, except for the provisions of this paragraph 2, be issuable upon the exercise of this Warrant, the Company shall pay to the Holder exercising the Warrant an amount in cash equal to such fraction multiplied by the current market value of the Exercise Share. For purposes of this Agreement, the current market value shall be determined as follows:

Right to Exercise Warrants. Each Warrant may be exercised from the date of this Agreement until 5:00 P.M. (Pacific time) on September 14January 11, 2006 2007 (the "“Expiration Date"”). Each Warrant not exercised on or before the Expiration Date shall expire. Each Warrant shall entitle its holder to purchase from the Company one share of Common Stock at an exercise price of $0.25 0.50 per share, subject to adjustment as set forth below ("“Exercise Price"”). The Company shall not be required to issue fractional shares of capital stock upon the exercise of this Warrant or to deliver Warrant Certificates, which evidence fractional shares of capital stock. In the event that a fraction of an Exercise Share would, except for the provisions of this paragraph 2, be issuable upon the exercise of this Warrant, the Company shall pay to the Holder exercising the Warrant an amount in cash equal to such fraction multiplied by the current market value of the Exercise Share. For purposes of this Agreement, the current market value shall be determined as follows:

Right to Exercise Warrants. Each Warrant may be exercised from the date of this Agreement until 5:00 P.M. (Pacific time) on September 14April 25, 2006 (the "Expiration Date"). Each Warrant not exercised on or before the Expiration Date shall expire. Each Warrant shall entitle its holder to purchase from the Company one share of Common Stock at an exercise price of $0.25 per share, subject to adjustment as set forth below ("Exercise Price"). The Company shall not be required to issue fractional shares of capital stock upon the exercise of this Warrant or to deliver Warrant Certificates, which evidence fractional shares of capital stock. In the event that a fraction of an Exercise Share would, except for the provisions of this paragraph 2, be issuable upon the exercise of this Warrant, the Company shall pay to the Holder exercising the Warrant an amount in cash equal to such fraction multiplied by the current market value of the Exercise Share. For purposes of this Agreement, the current market value shall be determined as follows:

Right to Exercise Warrants. Each Warrant may be exercised from the -------------------------- date of this Agreement until 5:00 11:59 P.M. (Pacific Los Angeles time) on September 14November 2, 2006 2004 (the "Expiration Date"). Each Warrant not exercised on or before the Expiration Date shall expire. Each Warrant shall entitle its holder to purchase from the Company one share of Common Stock at an exercise price of $0.25 ____per share, subject to adjustment as set forth below ("Exercise Price"). The Company shall not be required to issue fractional shares of capital stock upon the exercise of this Warrant or to deliver Warrant Certificates, Certificates which evidence fractional shares of capital stock. In the event that a fraction of an Exercise Exercisable Share would, except for the provisions of this paragraph 2, be issuable upon the exercise of this Warrant, the Company shall pay to the Holder exercising the Warrant an amount in cash equal to such fraction multiplied by the current market value of the Exercise Share. For purposes of this Agreementparagraph 2, the current market value shall be determined as follows:

Right to Exercise Warrants. Each Warrant may be exercised from the date of this Agreement until 5:00 11:59 P.M. (Pacific Tulsa time) on September 14, 2006 the date that is five years after the date of this Agreement (the "“Expiration Date"”). Each Warrant not exercised on or before the Expiration Date shall expire. Each Warrant shall entitle its holder to purchase from the Company one share of Common Stock at an exercise price of $0.25 $ per share, subject to adjustment as set forth below ("“Exercise Price"”). The Company shall not be required to issue fractional shares of capital stock upon the exercise of this Warrant or to deliver Warrant Certificates, Certificates which evidence fractional shares of capital stock. In the event that a fraction of an Exercise Exercisable Share would, except for the provisions of this paragraph 2, be issuable upon the exercise of this Warrant, the Company shall pay to the Holder exercising the Warrant an amount in cash equal to such fraction multiplied by the current market value of the Exercise Share. For purposes of this Agreementparagraph 2, the current market value shall be determined as follows: