RIGGAN

Oil · District 08 · Lease #28532

Operator: VIN FISHER OPERATING, INC.

Fields: FUHRMAN-MASCHO

Cum Oil

83k BBL

Cum Gas

81k MCF

casinghead

Wells

5

Production

1993-01 — 2026-04

Peak Month

2010-09

Production History

Cum Oil: 83,174 BBL Cum Gas: 80,559 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,121 BBL/mo

Di (annual)

221.7%

b-factor

0.8

EUR

38,789 BBL

R-squared

0.610

type

hyperbolic

Operator History (from monthly production reports)

2021-08 — 2026-07 MONTARE OPERATING, LTD. 60 mo

2018-11 — 2021-07 AVALON TX OPERATING, LLC 33 mo

2010-08 — 2018-10 SANDRIDGE EXPL. AND PROD., LLC 99 mo

2009-11 — 2010-07 OK ARENA OPERATING COMPANY 9 mo

2008-06 — 2009-10 VIN FISHER OPERATING, INC. 17 mo

2005-01 — 2008-05 VIN FISHER OIL COMPANY 41 mo

2002-03 — 2004-12 MIRANDA ENERGY CORPORATION 34 mo

2002-01 — 2002-02 LYNX OPERATING CO., INC. 2 mo

2000-03 — 2001-12 LYNX ENERGY COMPANY, INC. 22 mo

1999-06 — 2000-02 BROWNING OIL COMPANY, INC. 9 mo

1998-09 — 1999-05 RANGE PRODUCTION COMPANY 9 mo

1994-06 — 1998-08 LOMAK PRODUCTION COMPANY 51 mo

1993-01 — 1994-05 GRAND BANKS ENERGY COMPANY 17 mo

Wells (5)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5	42-003-43415	MONTARE OPERATING, LTD.	1	4,900	2011-09-16
3	42-003-41690	MONTARE OPERATING, LTD.	1	4,900	2010-05-14
4	42-003-41691	MONTARE OPERATING, LTD.	1	4,900	2010-05-14
1	42-003-33774	MONTARE OPERATING, LTD.	2	4,700	1983-12-06
2	42-003-33868	MONTARE OPERATING, LTD.	1	4,600	1983-11-21

RIGGAN

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 (5)

Production History