< leases

BARNETT "21"

Oil · District 7C · Lease #14995

Operator: SUMMIT PETROLEUM LLC

Fields: AMACKER-TIPPETT (WOLFCAMP)

Cum Oil

213k BBL

Cum Gas

1.7M MCF

casinghead

Wells

1

Production

1999-12 — 2023-03

Peak Month

2000-08

Production History

Cum Oil: 212,536 BBL Cum Gas: 1,682,181 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

8,303 BBL/mo

Di (annual)

63.9%

b-factor

0.2

EUR

194,890 BBL

R-squared

0.775

type

hyperbolic

Operator History (from monthly production reports)

2016-10 — 2025-01 SUMMIT PETROLEUM LLC 100 mo
2008-05 — 2016-09 LEGACY RESERVES OPERATING LP 101 mo
2005-06 — 2008-04 BC OPERATING, INC. 35 mo
2005-04 — 2005-05 OXY USA WTP LP 2 mo
2003-09 — 2005-03 DEVON LOUISIANA CORPORATION 19 mo
1999-12 — 2003-08 OCEAN ENERGY, INC. 45 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
342-461-33956SUMMIT PETROLEUM LLC29,5001999-08-24