STEPHENS "A"

Oil · District 7B · Lease #21462

Operator: SIMPSON OPERATING SERVICES, LP

Cum Oil

12k BBL

Cum Gas

30 MCF

casinghead

Wells

17

Production

1993-01 — 2026-03

Peak Month

2020-01

Production History

Cum Oil: 12,415 BBL Cum Gas: 30 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

149 BBL/mo

Di (annual)

249.6%

b-factor

0.5

EUR

1,318 BBL

R-squared

0.372

type

hyperbolic

Operator History (from monthly production reports)

2022-02 — 2026-07 SIMPSON OPERATING SERVICES, LP 54 mo
2015-10 — 2022-01 BIG IRON EXCAVATION, L.L.C. 76 mo
2012-07 — 2015-09 HAY CREEK INVESTMENTS, L.L.C. 39 mo
2002-03 — 2012-06 HUNTLAND PROPERTIES, LTD. 124 mo
1999-05 — 2002-02 SAMOTLOR PETROLEUM, L.L.C. 34 mo
1994-08 — 1999-04 CEI OPERATING, LLC 57 mo
1993-01 — 1994-07 PENN, C. J. TRUCK SERVICE, INC. 19 mo

Wells (17)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10SIMPSON OPERATING SERVICES, LP11,5001994-06-16
7ASIMPSON OPERATING SERVICES, LP11,5001994-06-16
6ASIMPSON OPERATING SERVICES, LP12,0001986-03-14
8SIMPSON OPERATING SERVICES, LP12,0001986-03-14
9SIMPSON OPERATING SERVICES, LP12,0001986-03-14
6SIMPSON OPERATING SERVICES, LP12,0001985-11-14
7SIMPSON OPERATING SERVICES, LP12,0001985-11-14
5SIMPSON OPERATING SERVICES, LP12,0001985-10-08
1SIMPSON OPERATING SERVICES, LP11,2601985-04-18
5ASIMPSON OPERATING SERVICES, LP12,0001985-03-04
3SIMPSON OPERATING SERVICES, LP12,0001985-01-31
3ASIMPSON OPERATING SERVICES, LP12,0001985-01-31
4SIMPSON OPERATING SERVICES, LP12,0001985-01-31
4ASIMPSON OPERATING SERVICES, LP12,0001985-01-31
1ASIMPSON OPERATING SERVICES, LP11,9901983-09-08
2SIMPSON OPERATING SERVICES, LP11,9901983-09-08
2ASIMPSON OPERATING SERVICES, LP11,9901983-09-08