SHANNON "A"

Oil · District 7C · Lease #10608

Operator: RAMTEX ENERGY LLC

Fields: FLAT IRON (STRAWN)

Cum Oil

89k BBL

Cum Gas

126k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

1994-01

Production History

Cum Oil: 89,490 BBL Cum Gas: 126,076 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

594 BBL/mo

Di (annual)

9.6%

b-factor

0.0

EUR

73,355 BBL

R-squared

0.411

type

exponential

Operator History (from monthly production reports)

2024-09 — 2026-07 2622 HOLDINGS, LLC 23 mo

2021-01 — 2024-08 LDF ENERGY, LLC 44 mo

2018-08 — 2020-12 DEWEY PETROLEUM 29 mo

2014-08 — 2018-07 RAMTEX ENERGY LLC 48 mo

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

1998-05 — 2002-09 CHAPARRAL (USA) ENERGY, INC. 53 mo

1995-10 — 1998-04 MERIT ENERGY COMPANY 31 mo

1993-01 — 1995-09 PHILLIPS PETROLEUM COMPANY 33 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
4	42-105-35348	2622 HOLDINGS, LLC	1	8,200	1987-04-15
3	42-105-33650	2622 HOLDINGS, LLC	3	9,600	1985-06-14