UNIVERSITY 6-28

Oil · District 7C · Lease #14535

Operator: MARATHON OIL COMPANY

Cum Oil

45k BBL

Cum Gas

72k MCF

casinghead

Wells

1

Production

1997-02 — 2003-04

Peak Month

1997-03

Production History

Cum Oil: 45,051 BBL Cum Gas: 72,450 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,652 BBL/mo

Di (annual)

410.4%

b-factor

0.5

EUR

32,772 BBL

R-squared

0.907

type

hyperbolic

Operator History (from monthly production reports)

2003-02 — 2004-12 MARATHON OIL COMPANY 23 mo
1999-10 — 2003-01 EOG RESOURCES, INC. 40 mo
1997-02 — 1999-09 ENRON OIL & GAS COMPANY 32 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1MARATHON OIL COMPANY110,3001996-11-27