< leases

SMITH

Oil · District 09 · Lease #21905

Operator: STAMPER OPERATING CO., INC.

Fields: BOB WILLIAMS (STRAWN SAND)

Cum Oil

50k BBL

Cum Gas

21 MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

2004-10

Production History

Cum Oil: 50,184 BBL Cum Gas: 21 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

468 BBL/mo

Di (annual)

72.2%

b-factor

1.5

EUR

43,697 BBL

R-squared

0.427

type

hyperbolic

Operator History (from monthly production reports)

2024-01 — 2026-07 RIO BRAVO PRODUCTION, LLC 31 mo
2011-12 — 2023-12 STAMPER OPERATING CO., INC. 145 mo
2001-12 — 2011-11 CRAIG, CARL 120 mo
2000-08 — 2001-11 BRITTON OPERATING, INC. 16 mo
1994-06 — 2000-07 LITTLE DROP OIL COMPANY 74 mo
1993-01 — 1994-05 RICO OIL COMPANY 17 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-237-34412RIO BRAVO PRODUCTION, LLC12,9001982-04-07
142-237-34291RIO BRAVO PRODUCTION, LLC12,6501981-12-30
342-237-34292RIO BRAVO PRODUCTION, LLC12,6501981-12-30