PENROSE OLDHAM "27"

Oil · District 08 · Lease #38078

Operator: LARIO OIL & GAS COMPANY

Cum Oil

41k BBL

Cum Gas

83k MCF

casinghead

Wells

2

Production

2007-01 — 2025-06

Peak Month

2007-01

Production History

Cum Oil: 41,078 BBL Cum Gas: 82,984 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

980 BBL/mo

Di (annual)

95.9%

b-factor

0.7

EUR

31,945 BBL

R-squared

0.570

type

hyperbolic

Operator History (from monthly production reports)

2025-05 — 2026-07 DIAMONDBACK E&P LLC 15 mo
2023-02 — 2025-04 DE IV OPERATING, LLC 27 mo
2022-12 — 2023-01 LARIO OIL & GAS COMPANY 2 mo
2008-12 — 2022-11 ENDEAVOR ENERGY RESOURCES L.P. 168 mo
2007-01 — 2008-11 KEMPER OPERATING COMPANY, INC. 23 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3ENDEAVOR ENERGY RESOURCES L.P.211,9002015-09-02
5ENDEAVOR ENERGY RESOURCES L.P.312,0002007-03-16