PRESIDIO PRODUCTION Co

Reserves Estimation Methods

We evaluated 3,729 PDP properties for this report, which included two (2) separate cases representing abandonment costs for operated and non-operated properties. For most operated properties, daily and monthly production data was provided by the Company through 12/31/2025. For most non-operated properties, monthly data was provided by the Company through 07/31/2025. Reserves for PDP wells were estimated using production performance methods for the vast majority of properties. Certain new producing properties with very little production history were forecast using a combination of production performance, type curves and analogy to similar production, all of which are considered to provide a relatively high degree of accuracy.

We evaluated 17 PDNP properties for this report, 16 of which are commercial. PDNP properties include tubing repairs, pump replacements, and other capitalized workover projects proposed on existing, non-producing wellbores. Future development costs and timing for these projects were applied as provided by the Company. 1,539 PDSI properties were included in this report and modeled at zero value. Abandonment costs for PDNP and PDSI properties have been included as described previously.