BROTHERS CATTLE CO. INC

Oil · District 03 · Lease #21275

Operator: WYNN-CROSBY OPERATING, LTD.

Fields: TENNA (HILLJE SAND)

Cum Oil

288k BBL

Cum Gas

39k MCF

casinghead

Wells

4

Production

1993-01 — 2026-04

Peak Month

1993-01

Production History

Cum Oil: 287,951 BBL Cum Gas: 38,709 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,914 BBL/mo

Di (annual)

13.9%

b-factor

0.1

EUR

277,041 BBL

R-squared

0.671

type

hyperbolic

Operator History (from monthly production reports)

2018-03 — 2026-07 VIPER S.W.D., LLC 101 mo

2016-09 — 2018-02 EAGLE OIL & GAS CO. 18 mo

2010-08 — 2016-08 WYNN-CROSBY OPERATING, LTD. 73 mo

2009-06 — 2010-07 NCEY HOLDINGS, LLC 14 mo

2003-07 — 2009-05 CENTURY RESOURCES, INC. 71 mo

1998-01 — 2003-06 OWL CREEK PRODUCTION CO., INC. 66 mo

1993-01 — 1997-12 HARDWICK OIL COMPANY 60 mo

Wells (4)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5	42-481-34900	VIPER S.W.D., LLC	1	4,400	2007-06-25
4	42-481-33697	VIPER S.W.D., LLC	1	5,000	1994-03-29
3	42-481-33568	VIPER S.W.D., LLC	1	4,300	1992-04-22
1	42-481-33414	VIPER S.W.D., LLC	2	5,300	1991-12-02