< leases

CONGER, FOSTER -19-

Oil · District 08 · Lease #27123

Operator: STANOLIND PRODUCTION LLC

Fields: W. A. M. (FUSSELMAN)

Cum Oil

344k BBL

Cum Gas

665k MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

1993-01

Production History

Cum Oil: 343,847 BBL Cum Gas: 664,617 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,094 BBL/mo

Di (annual)

7.9%

b-factor

0.0

EUR

311,657 BBL

R-squared

0.840

type

exponential

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
1993-01 — 1997-02 AMERICAN COMETRA, INC. 50 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4 L42-431-31340BURK ROYALTY CO., LTD.18,8501983-06-29
542-431-31139BURK ROYALTY CO., LTD.18,8081982-05-07
242-431-30986BURK ROYALTY CO., LTD.18,7201981-06-05