ADA J. HIGHTOWER

Oil · District 05 · Lease #4485

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

7k BBL

Cum Gas

51k MCF

casinghead

Wells

1

Production

2024-10 — 2026-04

Peak Month

2025-02

Production History

Cum Oil: 6,510 BBL Cum Gas: 50,845 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

854 BBL/mo

Di (annual)

185.1%

b-factor

0.0

EUR

5,540 BBL

R-squared

0.928

type

exponential

Operator History (from monthly production reports)

2024-10 — 2026-07 HIGHMARK ENERGY OPERATING, LLC 22 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HIGHMARK ENERGY OPERATING, LLC211,5002024-11-04