< leases

S. W. RATLIFF -L-

Oil · District 08 · Lease #35697

Operator: UNION PACIFIC RESOURCES COMPANY

Fields: HEADLEE, N. (DEVONIAN)

Cum Oil

28k BBL

Cum Gas

274k MCF

casinghead

Wells

1

Production

1998-03 — 2015-10

Peak Month

2012-03

Production History

Cum Oil: 28,354 BBL Cum Gas: 274,465 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

346 BBL/mo

Di (annual)

13.8%

b-factor

0.0

EUR

29,998 BBL

R-squared

0.642

type

exponential

Operator History (from monthly production reports)

2012-02 — 2026-07 COG OPERATING LLC 174 mo
2010-09 — 2012-01 PDC ENERGY 17 mo
2010-08 — 2010-08 PDC-WV-CO CORPORATION 1 mo
2004-12 — 2010-07 MERIT ENERGY COMPANY 68 mo
2002-12 — 2004-11 ANADARKO E&P COMPANY LP 24 mo
2001-02 — 2002-11 RME PETROLEUM COMPANY 22 mo
1998-03 — 2001-01 UNION PACIFIC RESOURCES COMPANY 35 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-135-34081SLANT OPERATING, LLC213,8002017-05-02