REEVES

Oil · District 01 · Lease #12813

Operator: SONJACK ENERGY COMPANY, LLC.

Fields: PEARSALL (AUSTIN CHALK)

Cum Oil

17k BBL

Cum Gas

23 MCF

casinghead

Wells

2

Production

1993-01 — 2017-03

Peak Month

2011-06

Production History

Cum Oil: 17,226 BBL Cum Gas: 23 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,125 BBL/mo

Di (annual)

117.3%

b-factor

0.1

EUR

12,770 BBL

R-squared

0.838

type

hyperbolic

Operator History (from monthly production reports)

2008-08 — 2026-07 LEEXUS OIL LLC 216 mo

2006-08 — 2008-07 SONJACK ENERGY COMPANY, LLC. 24 mo

2002-01 — 2006-07 CALTEX ENERGY CO. 55 mo

1993-01 — 2001-12 JB OIL & GAS WELL SERVICE 108 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-163-32847	LEEXUS OIL LLC	4	9,000	2011-01-19
1H	42-163-32847	LEEXUS OIL LLC	4	9,000	2011-01-19