AFFIRMED UNIT

Oil · District 03 · Lease #23457

Operator: UNION PACIFIC RESOURCES COMPANY

Cum Oil

15k BBL

Cum Gas

112k MCF

casinghead

Wells

1

Production

1997-06 — 2014-08

Peak Month

1997-08

Production History

Cum Oil: 14,863 BBL Cum Gas: 112,270 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

136 BBL/mo

Di (annual)

12.7%

b-factor

0.0

EUR

12,797 BBL

R-squared

0.331

type

exponential

Operator History (from monthly production reports)

2007-08 — 2015-02 ENERVEST OPERATING, L.L.C. 91 mo
2002-12 — 2007-07 ANADARKO E&P COMPANY LP 56 mo
2001-02 — 2002-11 RME PETROLEUM COMPANY 22 mo
1997-06 — 2001-01 UNION PACIFIC RESOURCES COMPANY 44 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ENERVEST OPERATING L.L.C.213,3001997-02-28