SANTA FE 1002

Oil · District 10 · Lease #8860

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

263k BBL

Cum Gas

658k MCF

casinghead

Wells

2

Production

2013-02 — 2026-04

Peak Month

2013-05

Production History

Cum Oil: 262,805 BBL Cum Gas: 658,326 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,826 BBL/mo

Di (annual)

22.4%

b-factor

0.2

EUR

253,359 BBL

R-squared

0.667

type

hyperbolic

Operator History (from monthly production reports)

2022-02 — 2026-07 HIGHMARK ENERGY OPERATING, LLC 54 mo
2013-02 — 2022-01 EOG RESOURCES, INC. 108 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HHIGHMARK ENERGY OPERATING, LLC19,0002013-05-14
3HHIGHMARK ENERGY OPERATING, LLC19,0002012-11-28