COBB UNIT 3

Oil · District 03 · Lease #17051

Operator: VINTAGE PETROLEUM, INC.

Fields: IOLA, SOUTH (SUB-CLARKSVILLE)

Cum Oil

74k BBL

Cum Gas

21k MCF

casinghead

Wells

1

Production

1993-01 — 2014-12

Peak Month

1997-12

Production History

Cum Oil: 74,191 BBL Cum Gas: 20,634 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

894 BBL/mo

Di (annual)

24.8%

b-factor

0.2

EUR

53,712 BBL

R-squared

0.841

type

hyperbolic

Operator History (from monthly production reports)

2014-08 — 2026-07 RAMTEX ENERGY LLC 144 mo

2002-10 — 2014-07 CHAPARRAL ENERGY, L.L.C. 142 mo

2001-12 — 2002-09 CHAPARRAL (USA) ENERGY, INC. 10 mo

1993-01 — 2001-11 VINTAGE PETROLEUM, INC. 107 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-185-30338	RAMTEX ENERGY LLC	1	10,200	1983-06-30