CASTLEMAN, J. L.

Oil · District 09 · Lease #7119

Operator: JUST OIL & GAS, INC.

Fields: YOUNG COUNTY REGULAR

Cum Oil

33k BBL

Cum Gas

14 MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

2007-02

Production History

Cum Oil: 33,226 BBL Cum Gas: 14 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

246 BBL/mo

Di (annual)

14.3%

b-factor

0.2

EUR

25,112 BBL

R-squared

0.667

type

hyperbolic

Operator History (from monthly production reports)

2026-05 — 2026-07 JUST OIL & GAS, INC. 3 mo

2010-06 — 2026-04 COOPER OIL & GAS, LLC 191 mo

2006-03 — 2010-05 COOPER OIL & GAS, INC. 51 mo

1993-01 — 2006-02 DELTA OIL PRODUCERS 158 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
4	42-503-41345	COOPER OIL & GAS, LLC	2	1,500	2006-08-18
1	42-503-80350	COOPER OIL & GAS, LLC	--	--	--