< leases

FOSSIL WILDMAN

Oil · District 05 · Lease #3438

Operator: UNITED OIL & MINERALS, INC.

Fields: HILLTOP RESORT (AUSTIN CHALK)

Cum Oil

66k BBL

Cum Gas

36k MCF

casinghead

Wells

1

Production

1993-01 — 2003-05

Peak Month

1995-09

Production History

Cum Oil: 65,863 BBL Cum Gas: 35,536 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,479 BBL/mo

Di (annual)

130.4%

b-factor

0.3

EUR

71,910 BBL

R-squared

0.907

type

hyperbolic

Operator History (from monthly production reports)

2020-09 — 2026-07 CONTRAST ENERGY, LLC 71 mo
2016-10 — 2020-08 RIVERSHORE OPERATING LLC 47 mo
2013-10 — 2016-09 FOSSIL OPERATING, INC. 36 mo
2009-10 — 2013-09 GASTAR EXPLORATION TEXAS, LP 48 mo
2004-04 — 2009-09 PALISADES OPERATING COMPANY 66 mo
2003-03 — 2004-03 CAMBRIAN MANAGEMENT LTD 13 mo
1999-02 — 2003-02 STRATCO OPERATING CO., INC. 49 mo
1993-01 — 1999-01 UNITED OIL & MINERALS, INC. 73 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-289-31170CONTRAST ENERGY LLC26,5001992-10-14