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Investor Presentaiton

Power Solutions Natural Gas Fueling Elevating the Value of Natural Gas-Powered Frac Fleets Diesel Displacement Comparison Long-Term Trial Results with NexTier Integrated Permian Client Diesel Displacement 80% 70% 60% 50% I 40% 3rd Party could not ! blend with 30% CNG 20% 15% 10% 0% Field Gas Blend 49% 71% 73% CNG Field Gas Blend 3rd Party Provider PATTERSON-UTI NEXTIER NEXTIER CNG The Power Solutions Bottom Line... Р Power Solutions consistently increases natural gas consumption Less diesel consumption results in a lower emissions profile Every 10% of increased diesel displacement reduces fuel costs by more than $1.5M annually per fleet 18

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