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TBPELS REGISTERED ENGINEERING FIRM F-1580
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1100 LOUISIANA SUITE 4600
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HOUSTON, TEXAS 77002-5294
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TELEPHONE (713) 651-9191
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/s/ RYDER SCOTT COMPANY, L.P.
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RYDER SCOTT COMPANY, L.P.
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TBPELS Firm Registration No. F-1580
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SUITE 2800, 350 7TH AVENUE, S.W.
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CALGARY, ALBERTA T2P 3N9
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TEL (403) 262-2799
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633 17TH STREET, SUITE 1700
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DENVER, COLORADO 80202
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TEL (303) 339-8110
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