< leases

OLIVER, J. R.

Oil · District 05 · Lease #3557

Operator: HUGHES OIL OPERATING, LLC

Fields: VAN (UPPER CARLILE)

Cum Oil

222k BBL

Cum Gas

251k MCF

casinghead

Wells

2

Production

1997-06 — 2026-04

Peak Month

1999-02

Production History

Cum Oil: 222,161 BBL Cum Gas: 250,800 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,087 BBL/mo

Di (annual)

76.1%

b-factor

0.5

EUR

152,516 BBL

R-squared

0.686

type

hyperbolic

Operator History (from monthly production reports)

2026-05 — 2026-07 HUGHES OIL OPERATING, LLC 3 mo
2008-09 — 2026-04 CRAWFORD HUGHES OPERATING CO. 212 mo
2002-01 — 2008-08 CRAWFORD ENERGY OPERATING CO 80 mo
1997-06 — 2001-12 CRAWFORD ENERGY, INCORPORATED 55 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-467-30975CRAWFORD HUGHES OPERATING CO.25,7001999-01-22
2C42-467-30975CRAWFORD HUGHES OPERATING CO.25,7001999-01-22