WINTERBOTHAM "B"

Oil · District 7C · Lease #9945

Operator: WALTER OIL & GAS CORPORATION

Fields: BUTTES NORTH (UPPER CANYON A)

Cum Oil

13k BBL

Cum Gas

478k MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

1997-05

Production History

Cum Oil: 12,902 BBL Cum Gas: 477,703 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

379 BBL/mo

Di (annual)

133.9%

b-factor

0.7

EUR

9,169 BBL

R-squared

0.885

type

hyperbolic

Operator History (from monthly production reports)

2024-11 — 2026-07 WALTER OIL & GAS CORPORATION 21 mo

2023-06 — 2024-10 BLUE STAR NATURAL RESOURCES, LLC 17 mo

2020-06 — 2023-05 FOSSIL PETROLEUM LLC 36 mo

2019-06 — 2020-05 MCDANIEL COMPANY, INC., THE 12 mo

2006-05 — 2019-05 CIMAREX ENERGY CO. OF COLORADO 157 mo

2004-11 — 2006-04 GRUY PETROLEUM MANAGEMENT CO. 18 mo

1999-10 — 2004-10 NADEL AND GUSSMAN PERMIAN,L.L.C. 61 mo

1998-04 — 1999-09 CHESAPEAKE OPERATING, INC. 18 mo

1994-09 — 1998-03 HUGOTON ENERGY CORPORATION 43 mo

1993-01 — 1994-08 TUTHILL & BARBEE 20 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
503	42-235-32402	WALTER OIL & GAS CORPORATION	3	6,300	2010-05-28
403	42-235-32212	WALTER OIL & GAS CORPORATION	1	6,200	1983-11-10
303	42-235-31999	WALTER OIL & GAS CORPORATION	1	6,224	1982-11-04

WINTERBOTHAM "B"

Production HistoryBeta Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]

Decline Curve Analysis

Operator History (from monthly production reports)

Wells (3)

Production History