system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
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Post-Well Study shows that the Critical Criterion has not been met: (1) STW may choose to not pursue the production and transport of the water from the Property. If one or more producing wells are developed by STW and COFS sells the CRA water produced from the well(s), COFS will reimburse STW from the net revenues COFS receives up to the point STW has been fully reimbursed for drilling any producing well(s) if such sale occurs within twenty (20) years from the date of this AGREEMENT. (2) STW may choose to pursue the production and transport of the water. STW shall have the right to produce and transport the water upon obtaining all necessary regulatory approvals, and will not seek reimbursement of any of its costs incurred pursuant to the AGREEMENT. (3) If regulatory approvals have been granted, but the permit obtained from the Middle Pecos Groundwater Conservation District allows the transport of less than the full amount requested for STW's use or sale, then STW may: i. elect to produce and transport the water; or ii. elect to not produce and transport the water, in which case the conditions of Subsection (c)(1) of this section shall apply. 15. Option to Produce Water. a. STW will have one year from completion of the last of the Post-Well Study (ies) completed on the Existing CRA Well or Replacement CRA Well to exercise its option to produce and transport the water produced from the CRA on the Property ("Option to Produce"). The AGREEMENT shall thereafter terminate as to both Parties if STW has not exercised its Option to Produce at the expiration of the one-year period unless STW pays as royalty on the first day of each month the sum of Five Hundred and 00/100 Dollars ($500.00) per month. STW shall have no right to maintain this AGREEMENT through payment of such a royalty for any one period greater than three consecutive years. b. If, after STW has exercised its option to produce CRA water from the Property, one or more producing wells on the Property are capable of producing CRA water for sale, but CRA water is not being sold for a consecutive period of 180 days or more, then the lease shall terminate as to both parties unless STW pays as royalty on the first day of each month after such period of 180 days, the sum of Five Thousand and 00/100 Dollars ($5,000) per month. STW shall have no right to maintain this AGREEMENT through payment of such a royalty for any one period greater than three (3) consecutive years. c. If STW exercises its option to produce and transport the CRA water, STW will construct additional facilities or expand existing facilities, as necessary, to be able to produce and transport the CRA water for sale. -5- 16. Payment for Use of COFS Pipeline Easements and COFS Assistance with Project. a. STW shall be entitled to use existing COFS easements and right of ways within Pecos County for laying of pipelines necessary for the delivery of CRA water produced within Pecos County. COFS will assist STW with any negotiations required to procure any additional easements and groundwater rights in Pecos County that are necessary for the production and delivery of CRA water. STW shall also be entitled to use and upgrade existing COFS water treatment infrastructure as necessary for the treatment of raw CRA water. STW shall pay COFS a seven percent (7%) royalty of the price STW receives per 1,000 gallons of CRA water produced from other properties within Pecos County and sold as consideration for the rights provided by COFS to STW under this subsection. Such payment shall be made according to the schedule and terms set forth in Section 14(b) of this AGREEMENT. The requirements under this Section 16 shall remain in force and effect despite any termination of those provisions of this AGREEMENT that apply only to COFS Property. The provisions of this section shall terminate in the event STW is not producing CRA water from other properties in Pecos County for sale due to termination of all such agreements or failure of STW to enter into such agreements regarding other properties in Pecos County within ten (10) years from the Effective Date of this AGREEMENT. b. COFS shall manage well maintenance and production operations for all CRA water produced within Pecos County under the direction of STW. STW shall pay COFS for its reasonable costs incurred to manage such well maintenance and production operations.
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Extract the exact clause related to "Parties" from the excerpt above.