BRILLHART

Oil · District 10 · Lease #8236

Operator: QUANAH PANHANDLE, LLC

Cum Oil

67k BBL

Cum Gas

470k MCF

casinghead

Wells

2

Production

2010-10 — 2026-03

Peak Month

2011-07

Production History

Cum Oil: 66,576 BBL Cum Gas: 470,249 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,222 BBL/mo

Di (annual)

287.6%

b-factor

1.6

EUR

103,543 BBL

R-squared

0.907

type

hyperbolic

Operator History (from monthly production reports)

2025-12 — 2026-07 HIGH RIVER RES OPERATING, LLC 8 mo
2019-09 — 2025-11 QUANAH PANHANDLE, LLC 75 mo
2010-10 — 2019-08 BURK ROYALTY CO., LTD. 107 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HHIGH RIVER RES OPERATING, LLC18,5002010-06-04
1HIGH RIVER RES OPERATING, LLC17,3001985-11-13