NORTH BLOCK 12 UNIT

Oil · District 08 · Lease #19954

Operator: VISTA RESOURCES, INC. (A)

Fields: BLOCK A-49 (DEVONIAN)

Cum Oil

587k BBL

Cum Gas

59k MCF

casinghead

Wells

4

Production

1993-01 — 2019-01

Peak Month

1993-01

Production History

Cum Oil: 586,840 BBL Cum Gas: 58,503 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

10,938 BBL/mo

Di (annual)

19.3%

b-factor

0.0

EUR

679,527 BBL

R-squared

0.304

type

exponential

Operator History (from monthly production reports)

2009-09 — 2026-07 BASS PETROLEUM, INC 203 mo

2006-12 — 2009-08 QUANTUM RESOURCES MANAGEMENT,LLC 33 mo

2006-05 — 2006-11 CIMAREX ENERGY CO. OF COLORADO 7 mo

2002-04 — 2006-04 GRUY PETROLEUM MANAGEMENT CO. 49 mo

2000-03 — 2002-03 PRIZE OPERATING COMPANY 25 mo

1999-08 — 2000-02 VISTA RESOURCES, INC. (A) 7 mo

1998-12 — 1999-07 CONCHO RESOURCES INC. 8 mo

1997-02 — 1998-11 COSTILLA ENERGY, INC. 22 mo

1994-03 — 1997-01 COSTILLA PETROLEUM CORPORATION 35 mo

1993-01 — 1994-02 CONOCO INC. 14 mo

Wells (4)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
10	42-003-37987	BASS PETROLEUM INC	1	11,500	1996-09-17
8	42-003-36708	BASS PETROLEUM INC	2	11,700	1992-05-29
7	42-003-33544	BASS PETROLEUM INC	1	8,775	1983-05-25
2	42-003-00975	CONOCO INC.	--	--	--

NORTH BLOCK 12 UNIT

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 (4)

Production History