DUFFER 'C'

Oil · District 7B · Lease #29698

Operator: GEOSURVEYS, INC.

Cum Oil

1k BBL

Cum Gas

0 MCF

Wells

1

Production

2006-03 — 2026-04

Peak Month

2006-08

Production History

Cum Oil: 1,194 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

25 BBL/mo

Di (annual)

126.1%

b-factor

1.0

EUR

754 BBL

R-squared

0.372

type

hyperbolic

Operator History (from monthly production reports)

2008-09 — 2026-07 BYRNE OIL COMPANY 215 mo
2006-03 — 2008-08 GEOSURVEYS, INC. 30 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1BYRNE OIL COMPANY34,5002005-05-26