OSO GRANDE

Oil · District 7B · Lease #28721

Operator: NAUMANN OIL & GAS, INC.

Cum Oil

28k BBL

Cum Gas

31k MCF

casinghead

Wells

1

Production

2000-01 — 2012-09

Peak Month

2000-01

Production History

Cum Oil: 28,176 BBL Cum Gas: 30,973 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

968 BBL/mo

Di (annual)

160.0%

b-factor

1.1

EUR

36,584 BBL

R-squared

0.811

type

hyperbolic

Operator History (from monthly production reports)

2000-01 — 2015-05 NAUMANN OIL & GAS, INC. 185 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1NAUMANN OIL & GAS INC.16,7001999-09-30