< leases

BUTTS & SAWYER

Oil · District 01 · Lease #14135

Operator: WEN-BE

Fields: PLEASANTON, SOUTH (EDWARDS LIME)

Cum Oil

148k BBL

Cum Gas

196k MCF

casinghead

Wells

1

Production

1997-06 — 2026-04

Peak Month

1997-10

Production History

Cum Oil: 148,223 BBL Cum Gas: 196,255 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

726 BBL/mo

Di (annual)

8.6%

b-factor

0.0

EUR

99,489 BBL

R-squared

0.480

type

exponential

Operator History (from monthly production reports)

2022-04 — 2026-07 MAZCO ENERGY LLC 52 mo
2019-02 — 2022-03 DAYLIGHT PETROLEUM LLC 38 mo
2014-01 — 2019-01 FIVE-JAB, INC. 61 mo
2013-07 — 2013-12 CEDAR ENERGY SERVICES, LLC 6 mo
2006-01 — 2013-06 ENHANCED ENERGY PARTNERS CORP 90 mo
2004-02 — 2005-12 EXCALIBUR E & P, LLC 23 mo
2002-08 — 2004-01 WEN-BE 18 mo
2002-06 — 2002-07 SPUR OPERATING CO. 2 mo
1997-06 — 2002-05 PEDECO, INC. 60 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-013-34081MAZCO ENERGY LLC19,0001997-03-18