GERDES DEVELOPMENT COMPANY UNIT

Oil · District 03 · Lease #15625

Operator: UNION PACIFIC RESOURCES COMPANY

Cum Oil

3k BBL

Cum Gas

73k MCF

casinghead

Wells

1

Production

1993-01 — 1997-02

Peak Month

1994-10

Production History

Cum Oil: 3,163 BBL Cum Gas: 73,290 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

236 BBL/mo

Di (annual)

101.2%

b-factor

0.0

EUR

2,793 BBL

R-squared

0.698

type

exponential

Operator History (from monthly production reports)

2007-09 — 2012-10 ENERVEST OPERATING, L.L.C. 62 mo
2002-12 — 2007-08 ANADARKO E&P COMPANY LP 57 mo
2001-02 — 2002-11 RME PETROLEUM COMPANY 22 mo
1997-03 — 2001-01 UNION PACIFIC RESOURCES COMPANY 47 mo
1993-01 — 1997-02 CIRRUS PRODUCTION COMPANY 50 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ENERVEST OPERATING L.L.C.110,0001981-05-11