SEIGFRIED & OBERHOFF OIL UNIT

Oil · District 03 · Lease #21437

Operator: MCGOWAN WORKING PARTNERS, INC.

Cum Oil

9k BBL

Cum Gas

383k MCF

casinghead

Wells

1

Production

1993-01 — 1996-03

Peak Month

1994-05

Production History

Cum Oil: 8,874 BBL Cum Gas: 383,391 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

442 BBL/mo

Di (annual)

58.1%

b-factor

0.3

EUR

12,864 BBL

R-squared

0.903

type

hyperbolic

Operator History (from monthly production reports)

2000-05 — 2006-01 MCGOWAN WORKING PARTNERS, INC. 69 mo
1993-01 — 2000-04 MCGOWAN WORKING PARTNERS 88 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1MCGOWAN WORKING PARTNERS INC.314,5001990-12-19