HOWELL

Oil · District 09 · Lease #26648

Operator: STAMPER OPERATING CO., INC.

Cum Oil

41k BBL

Cum Gas

21 MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1995-03

Production History

Cum Oil: 41,184 BBL Cum Gas: 21 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

321 BBL/mo

Di (annual)

25.8%

b-factor

0.6

EUR

28,505 BBL

R-squared

0.650

type

hyperbolic

Operator History (from monthly production reports)

2024-01 — 2026-07 RIO BRAVO PRODUCTION, LLC 31 mo
1993-01 — 2023-12 STAMPER OPERATING CO., INC. 372 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1RIO BRAVO PRODUCTION, LLC22,5001987-03-18