< leases

FOSSIL JAN UNIT

Oil · District 05 · Lease #3495

Operator: UNITED OIL & MINERALS, INC.

Fields: HILLTOP RESORT (AUSTIN CHALK)

Cum Oil

210k BBL

Cum Gas

2k MCF

casinghead

Wells

1

Production

1994-09 — 2018-02

Peak Month

1994-10

Production History

Cum Oil: 209,538 BBL Cum Gas: 2,076 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,528 BBL/mo

Di (annual)

66.2%

b-factor

0.6

EUR

99,394 BBL

R-squared

0.436

type

hyperbolic

Operator History (from monthly production reports)

2020-09 — 2026-05 CONTRAST ENERGY, LLC 69 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
1994-09 — 1999-01 UNITED OIL & MINERALS, INC. 53 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-289-31210CONTRAST ENERGY LLC16,5001994-08-03