< leases

CHAMPION INT'L. UNIT A-1148

Oil · District 06 · Lease #13406

Operator: SWIFT ENERGY OPERATING, LLC

Fields: BROOKELAND (AUSTIN CHALK, 8800)

Cum Oil

157k BBL

Cum Gas

1.1M MCF

casinghead

Wells

2

Production

1995-03 — 2026-03

Peak Month

1995-03

Production History

Cum Oil: 157,491 BBL Cum Gas: 1,063,971 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,095 BBL/mo

Di (annual)

231.1%

b-factor

1.0

EUR

51,805 BBL

R-squared

0.372

type

hyperbolic

Operator History (from monthly production reports)

2026-03 — 2026-07 ATLAS OPERATING LLC 5 mo
2024-06 — 2026-02 BRG LONE STAR LTD. 21 mo
2021-07 — 2024-05 PRIZE EXPLORATION & PROD, LLC 35 mo
2019-05 — 2021-06 RKI ENERGY RESOURCES, LLC 26 mo
2017-08 — 2019-04 GRIT OIL & GAS, LLC 21 mo
2013-04 — 2017-07 KOVAR OPERATING, LLC 52 mo
2006-01 — 2013-03 SWIFT ENERGY OPERATING, LLC 87 mo
1998-09 — 2005-12 SWIFT ENERGY COMPANY 88 mo
1995-03 — 1998-08 SONAT EXPLORATION COMPANY -TYLER 42 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-351-30711ATLAS OPERATING LLC212,0002000-12-20
142-351-30586ATLAS OPERATING LLC211,6361993-12-29