Common use of Exercise Period Clause in Contracts

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth anniversary thereof (the "EXERCISE PERIOD").

Exercise Period. The Registered Holder may exerciseexercise this Warrant, in whole or in part (but not as to a fractional share of Common Warrant Stock), the purchase rights represented by this Warrant at any time and from time to time after prior to the fifth anniversary of the Date of Issuance to and including of the fifth anniversary thereof Warrant (the "EXERCISE PERIODExercise Period").

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth anniversary thereof of the earlier of (i) the issuance of warrants under the Purchase Agreement or (ii) termination of the Purchase Agreement prior to the closing thereunder (the "EXERCISE PERIOD").

Exercise Period. The Subject to paragraph lB hereof, the Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Warrant Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth anniversary thereof of the Date of Issuance (the "EXERCISE PERIODExercise Period").

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth fourth anniversary thereof (the "EXERCISE PERIOD"“Exercise Period”). The “Date of Issuance” shall be the Effective Date under the Purchase Agreement.

Exercise Period. The Registered Holder may exerciseexercise this ---------------- Warrant, in whole or in part (but not as to a fractional share of Common Warrant Stock), the purchase rights represented by this Warrant at any time and from time to time after prior to the seventh anniversary of the Date of Issuance to and including of the fifth anniversary thereof Warrant (the "EXERCISE PERIODExercise Period").

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth anniversary thereof 5:00 p.m. (Snyder, Texas time) on April ___, 2003 (the "EXERCISE PERIODExercise Period").

Exercise Period. The Registered Holder Subject to Section 1D, the holder of this Warrant may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth tenth (10th) anniversary thereof hereof (the "EXERCISE PERIOD"“Exercise Period”).

Exercise Period. The Registered Holder may exerciseexercise this --------------- Warrant, in whole or in part (but not as to a fractional share of Common Warrant Stock), the purchase rights represented by this Warrant at any time and from time to time after prior to the fifth anniversary of the Date of Issuance to and including of the fifth anniversary thereof Warrant (the "EXERCISE PERIODExercise Period").

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Warrant Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth anniversary thereof December 31, 2001 (as may be extended pursuant to Section 2B(vi) hereof, the "EXERCISE PERIODExercise Period").

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth anniversary thereof 5:00 p.m. (Snyder, Texas time) on June 11, 2000 (the "EXERCISE PERIODExercise Period").

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Warrant Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including until the fifth anniversary thereof (the "EXERCISE PERIOD")Expiration Date.

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Warrant Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth 10th anniversary thereof (the "EXERCISE PERIODExercise Period").

Exercise Period. The Subject to Section 9, the Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Warrant Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth seventh (7th) anniversary thereof (the "EXERCISE PERIOD"“Exercise Period”).

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date completion of Issuance the Offering to and including that date which is the fifth second anniversary thereof (the "EXERCISE PERIODExercise Period").

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Warrant Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth tenth (10th) anniversary thereof (the "EXERCISE PERIOD"“Exercise Period”).

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance time, to and including the fifth date that is the seventh (7th) anniversary thereof of the original date of issuance (the "EXERCISE PERIOD"“Exercise Period”).

Exercise Period. The Subject to paragraph 1B hereof, the Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Warrant Stock), the purchase rights represented by this Warrant at any time and from time to time tune after the Date of Issuance to and including the fifth second anniversary of the date thereof (the "EXERCISE PERIODExercise Period").

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth anniversary thereof (the "EXERCISE PERIOD"“Exercise Period”).

Exercise Period. The A Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth anniversary thereof until 5:00 p.m., Eastern Time, on November 8, 2011 (the "EXERCISE PERIOD"“Exercise Period”).

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Warrant Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth seventh (7th) anniversary thereof (the "EXERCISE PERIOD"“Exercise Period”).

Exercise Period. The Registered Holder may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth tenth anniversary thereof (the "EXERCISE PERIODExercise Period").

Exercise Period. The Registered Holder holder of this Warrant may exercise, in whole or in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth seventh (7th) anniversary thereof hereof (the "EXERCISE PERIOD"“Exercise Period”).

Exercise Period. The Registered Holder may exercise, in whole or in part --------------- (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after the Date of Issuance to and including the fifth anniversary thereof (the "EXERCISE PERIODExercise Period").

Exercise Period. The Registered Holder may exercise, in whole or ---------------- in part (but not as to a fractional share of Common Stock), the purchase rights represented by this Warrant at any time and from time to time after until the Date earlier of Issuance (i) November 8, 1999, or (ii) the date in which the Registered Holder elects to convert all of the principal and including accrued but unpaid interest into securities of the fifth anniversary thereof Company in accordance with Section 5 of that certain Promissory Note, of even date herewith, issued by the Company in favor of the Registered Holder (the "EXERCISE PERIODExercise Period").