STONE 15

Oil · District 10 · Lease #9670

Operator: QUANAH PANHANDLE, LLC

Cum Oil

187k BBL

Cum Gas

287k MCF

casinghead

Wells

1

Production

2018-11 — 2026-03

Peak Month

2019-01

Production History

Cum Oil: 187,219 BBL Cum Gas: 286,733 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

23,547 BBL/mo

Di (annual)

790.8%

b-factor

1.1

EUR

264,798 BBL

R-squared

0.951

type

hyperbolic

Operator History (from monthly production reports)

2025-12 — 2026-07 HIGH RIVER RES OPERATING, LLC 8 mo
2018-11 — 2025-11 QUANAH PANHANDLE, LLC 85 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HHIGH RIVER RES OPERATING, LLC17,5002018-06-27