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Kimbrough Engineering Company, LLC University 4 #1 Sec. 4 Blk. 14 UL Svy, A-U444 Andrews County, TX C1 vNormC4 vNormLts vNormMids vNorm Pathplot Min Max Min Max TRIP Glorieta 5760 Clearfork 6280 Witchita Albany 7053 Wolfcamp 7720 Canyon 8366 Strawn 8570 Atoka / Bend 8730 U Miss Lime 8992

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Multiplot A B C D E F G H Max Min H2/He H2/C1 C1/C4 C4/C7 Sol 5 Arom 51 C1 C1 Std C2 Std CO2++ C1 C1/(Ar/36) Arom 51 TRIP Glorieta 5760 Clearfork 6280 Witchita Albany 7053 Wolfcamp 7720 Canyon 8366 Strawn 8570 Atoka / Bend 8730 U Miss Lime 8992 Kimbrough Engineering Company, LLC University 4 #1 Sec. 4 Blk. 14 UL Svy, A-U444 Andrews County, TX

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Standardized Data Plot Std C1/Std FPH Std Benz/Std nC6 Std C1/Std CO2 Std C1/Std C4 Std He/Std H2 Std FPH Std Benz Std C6 Std C1 Std C4 11 22 33 -1 -2 -3 TRIP Glorieta 5760 Clearfork 6280 Witchita Albany 7053 Wolfcamp 7720 Canyon 8366 Strawn 8570 Atoka / Bend 8730 U Miss Lime 8992 Kimbrough Engineering Company, LLC University 4 #1 Sec. 4 Blk. 14 UL Svy, A-U444 Andrews County, TX

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Frac Chemistry Profile Geochemistry markers that correlate to increased frac density. Frac Chemistry TRIP Glorieta 5760Clearfork 6280 Witchita Albany 7053 Wolfcamp 7720Canyon 8366 Strawn 8570Atoka / Bend 8730U Miss Lime 8992 Kimbrough Engineering Company, LLC University 4 #1 Sec. 4 Blk. 14 UL Svy, A-U444 Andrews County, TX

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Reverse Indicator Plots Page 1 Kimbrough Engineering Company, LLC University 4 #1 Sec. 4 Blk. 14 UL Svy, A-U444 Andrews County, TX Hydrocarbon volume in the Wolfcamp is elevated for heavier hydrocarbons, but not as much for methane which might suggest an immature or depleted profile. The Canyon and Strawn both exhibit a distinct hydrocarbon profile that includes hydrocarbon class fingerprint and light hydrocarbon characteristics relative to surrounding zones. Zone 1 exhibits some elevated relative Sw potential. Zone 2 also exhibits elevated hydrocarbon volume, much like the earlier Canyon and Strawn zones.

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Reverse Indicator Plots Page 2 Kimbrough Engineering Company, LLC University 4 #1 Sec. 4 Blk. 14 UL Svy, A-U444 Andrews County, TX

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Reverse Indicator Plots Page 3 Kimbrough Engineering Company, LLC University 4 #1 Sec. 4 Blk. 14 UL Svy, A-U444 Andrews County, TX

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Reverse Indicator Plots Page 4 Kimbrough Engineering Company, LLC University 4 #1 Sec. 4 Blk. 14 UL Svy, A-U444 Andrews County, TX

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Hydrocarbon Strip Kimbrough Engineering Company, LLC University 4 #1 Sec. 4 Blk. 14 UL Svy, A-U444 Andrews County, TX