POST OAK B

Oil · District 03 · Lease #23467

Operator: NORTHFIELD ENTERPRISES, INC.

Cum Oil

9k BBL

Cum Gas

44k MCF

casinghead

Wells

1

Production

1997-10 — 2002-10

Peak Month

1997-11

Production History

Cum Oil: 9,470 BBL Cum Gas: 43,770 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,287 BBL/mo

Di (annual)

712.1%

b-factor

0.4

EUR

6,474 BBL

R-squared

0.809

type

hyperbolic

Operator History (from monthly production reports)

1997-10 — 2026-07 NORTHFIELD ENTERPRISES, INC. 346 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2NORTHFIELD ENTERPRISES, INC.48,0002004-09-15