SHINER-MORALES

Oil · District 01 · Lease #12486

Operator: ZORRA OIL & GAS

Fields: PEARSALL (AUSTIN CHALK)

Cum Oil

277k BBL

Cum Gas

173k MCF

casinghead

Wells

3

Production

1993-01 — 2024-12

Peak Month

2002-05

Production History

Cum Oil: 276,750 BBL Cum Gas: 172,835 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,447 BBL/mo

Di (annual)

38.4%

b-factor

0.0

EUR

201,644 BBL

R-squared

0.818

type

exponential

Operator History (from monthly production reports)

2012-05 — 2026-07 BLACKBRUSH O & G, LLC 171 mo

2005-02 — 2012-04 BLACKBRUSH O & G, INC. 87 mo

2001-11 — 2005-01 TRIUMPH PETROLEUM COMPANY,L.L.C. 39 mo

1999-10 — 2001-10 KING ENERGY RESOURCES 25 mo

1997-04 — 1999-09 BAXTER, KELLY H. OIL AND GAS CO. 30 mo

1995-07 — 1997-03 ZORRA OIL & GAS 21 mo

1993-12 — 1995-06 GERMANY OPERATING COMPANY 19 mo

1993-01 — 1993-11 HUNT OIL COMPANY 11 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-163-32734	BLACKBRUSH O & G, LLC	3	11,000	2004-08-12
1	42-163-32671	BLACKBRUSH O & G LLC	3	7,500	2001-12-21
1H	42-163-32671	BLACKBRUSH O & G LLC	3	7,500	2001-12-21