SHEPPARD "CI"

Oil · District 09 · Lease #29613

Operator: CHIEF OIL & GAS LLC *

Cum Oil

7k BBL

Cum Gas

486k MCF

casinghead

Wells

1

Production

1998-12 — 2003-10

Peak Month

1999-05

Production History

Cum Oil: 6,928 BBL Cum Gas: 485,729 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,677 BBL/mo

Di (annual)

985.0%

b-factor

0.6

EUR

4,957 BBL

R-squared

0.903

type

hyperbolic

Operator History (from monthly production reports)

1998-12 — 2004-03 CHIEF OIL & GAS LLC * 64 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3SCOUT ENERGY MANAGEMENT LLC46,2002015-11-06