MCWILLIAMS UNIT

Oil · District 03 · Lease #21891

Operator: UNION PACIFIC RESOURCES COMPANY

Cum Oil

137k BBL

Cum Gas

368k MCF

casinghead

Wells

1

Production

1993-01 — 2002-01

Peak Month

1993-02

Production History

Cum Oil: 137,304 BBL Cum Gas: 368,297 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

8,851 BBL/mo

Di (annual)

214.2%

b-factor

0.4

EUR

82,414 BBL

R-squared

0.613

type

hyperbolic

Operator History (from monthly production reports)

2010-01 — 2010-09 7711 CORPORATION, THE 9 mo
2007-08 — 2009-12 ENERVEST OPERATING, L.L.C. 29 mo
2002-12 — 2007-07 ANADARKO E&P COMPANY LP 56 mo
2001-02 — 2002-11 RME PETROLEUM COMPANY 22 mo
1997-09 — 2001-01 UNION PACIFIC RESOURCES COMPANY 41 mo
1993-01 — 1997-08 SAGE ENERGY COMPANY 56 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1WILDFIRE ENERGY OPERATING LLC311,7002010-01-28