GUINN

Oil · District 7C · Lease #10363

Operator: LAWRENCE, C. F. & ASSOC. INC.

Fields: ATKINSON, W. (SAN ANGELO)

Cum Oil

10k BBL

Cum Gas

38 MCF

casinghead

Wells

5

Production

1993-01 — 2026-04

Peak Month

1993-01

Production History

Cum Oil: 9,964 BBL Cum Gas: 38 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

271 BBL/mo

Di (annual)

48.7%

b-factor

0.4

EUR

10,751 BBL

R-squared

0.866

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 CORE PETRO, LLC 62 mo

1996-03 — 2021-05 ARMOR PETROLEUM, INC. 303 mo

1994-08 — 1996-02 EARNEST PRODUCING CORPORATION 19 mo

1993-01 — 1994-07 LAWRENCE, C. F. & ASSOC. INC. 19 mo

Wells (5)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5	42-451-31512	CORE PETRO, LLC	1	1,100	1984-11-19
4	42-451-31439	CORE PETRO, LLC	1	1,100	1984-07-03
3	42-451-31384	CORE PETRO, LLC	1	1,400	1984-02-14
2	42-451-31339	CORE PETRO, LLC	1	1,400	1983-11-03
1	42-451-31281	CORE PETRO, LLC	1	1,300	1983-07-28