< leases

FOSSIL LERA

Oil · District 05 · Lease #3589

Operator: UNITED OIL & MINERALS, INC.

Fields: HILLTOP RESORT (AUSTIN CHALK)

Cum Oil

87k BBL

Cum Gas

24 MCF

casinghead

Wells

1

Production

1997-02 — 2016-12

Peak Month

1997-03

Production History

Cum Oil: 87,021 BBL Cum Gas: 24 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,658 BBL/mo

Di (annual)

111.1%

b-factor

0.7

EUR

47,393 BBL

R-squared

0.523

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
1997-02 — 1999-01 UNITED OIL & MINERALS, INC. 24 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-289-31251CONTRAST ENERGY LLC27,2001996-12-04