SHEPPARD "C"

Oil · District 06 · Lease #12667

Operator: MARATHON OIL COMPANY

Cum Oil

592 BBL

Cum Gas

14k MCF

casinghead

Wells

1

Production

1993-01 — 1993-08

Peak Month

1993-02

Production History

Cum Oil: 592 BBL Cum Gas: 13,585 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

130 BBL/mo

Di (annual)

255.5%

b-factor

0.9

EUR

2,348 BBL

R-squared

0.947

type

hyperbolic

Operator History (from monthly production reports)

1993-01 — 1993-11 MARATHON OIL COMPANY 11 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SOUTHWEST OPERATING, INC.-TYLER29,5001993-09-15