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WEBB

Oil · District 8A · Lease #65843

Operator: VISTA RESOURCES, INC. (A)

Fields: PLAINS, SOUTHWEST (WOLFCAMP)

Cum Oil

116k BBL

Cum Gas

22k MCF

casinghead

Wells

2

Production

1993-01 — 2007-12

Peak Month

1999-07

Production History

Cum Oil: 115,832 BBL Cum Gas: 21,815 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,044 BBL/mo

Di (annual)

164.8%

b-factor

0.6

EUR

68,264 BBL

R-squared

0.771

type

hyperbolic

Operator History (from monthly production reports)

2006-12 — 2014-10 QUANTUM RESOURCES MANAGEMENT,LLC 95 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
1997-07 — 2000-02 VISTA RESOURCES, INC. (A) 32 mo
1993-04 — 1997-06 E.G. OPERATING 51 mo
1993-01 — 1993-03 GRAHAM ROYALTY, LTD. 3 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1X42-501-31666QUANTUM RESOURCES MANAGEMENT LLC311,8002000-07-18
242-501-33071QUANTUM RESOURCES MANAGEMENT LLC19,8001986-05-17