RATLIFF RANCH -A-

Oil · District 08 · Lease #33876

Operator: UNION PACIFIC RESOURCES COMPANY

Fields: HEADLEE, N. (DEVONIAN)

Cum Oil

155k BBL

Cum Gas

1.5M MCF

casinghead

Wells

1

Production

1993-06 — 2026-04

Peak Month

1994-06

Production History

Cum Oil: 154,582 BBL Cum Gas: 1,459,669 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,245 BBL/mo

Di (annual)

14.5%

b-factor

0.4

EUR

149,592 BBL

R-squared

0.736

type

hyperbolic

Operator History (from monthly production reports)

2022-12 — 2026-07 DIAMONDBACK E&P LLC 44 mo

2020-07 — 2022-11 FIREBIRD ENERGY LLC 29 mo

2019-02 — 2020-06 TORCH OPERATING LLC 17 mo

2012-02 — 2019-01 COG OPERATING LLC 84 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

1997-03 — 1998-02 ALTURA ENERGY LTD. 12 mo

1993-06 — 1997-02 AMOCO PRODUCTION COMPANY 45 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1035	42-135-36713	DIAMONDBACK E&P LLC	2	13,800	1993-03-01

RATLIFF RANCH -A-

Production HistoryBeta Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]

Decline Curve Analysis

Operator History (from monthly production reports)

Wells (1)

Production History