< leases

WESTBROOK 21

Oil · District 08 · Lease #34776

Operator: STANOLIND PRODUCTION LLC

Fields: W. A. M. (WOLFCAMP)

Cum Oil

77k BBL

Cum Gas

274k MCF

casinghead

Wells

2

Production

1995-12 — 2007-01

Peak Month

2004-05

Production History

Cum Oil: 77,412 BBL Cum Gas: 274,406 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,824 BBL/mo

Di (annual)

35.8%

b-factor

0.3

EUR

86,259 BBL

R-squared

0.877

type

hyperbolic

Operator History (from monthly production reports)

2022-01 — 2026-07 BURK ROYALTY CO., LTD. 55 mo
2021-01 — 2021-12 SLANT OPERATING, LLC 12 mo
2018-07 — 2020-12 STANOLIND PRODUCTION LLC 30 mo
2014-08 — 2018-06 EQT PRODUCTION TEXAS, LLC 47 mo
1998-09 — 2014-07 RANGE PRODUCTION COMPANY 191 mo
1997-03 — 1998-08 LOMAK PRODUCTION COMPANY 18 mo
1995-12 — 1997-02 AMERICAN COMETRA, INC. 15 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
542-431-32688BURK ROYALTY CO., LTD.27,9002000-10-26
242-431-32299BURK ROYALTY CO., LTD.27,8001995-12-14