UNIVERSITY -L-

Oil · District 7C · Lease #9750

Operator: MARATHON OIL COMPANY

Cum Oil

211k BBL

Cum Gas

644k MCF

casinghead

Wells

15

Production

1993-01 — 2026-04

Peak Month

1995-05

Production History

Cum Oil: 211,432 BBL Cum Gas: 643,704 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,738 BBL/mo

Di (annual)

11.0%

b-factor

0.0

EUR

188,953 BBL

R-squared

0.627

type

exponential

Operator History (from monthly production reports)

2021-02 — 2026-07 EXTEX OPERATING COMPANY 66 mo
2006-04 — 2021-01 LEGACY RESERVES OPERATING LP 178 mo
1999-11 — 2006-03 BROTHERS PRODUCTION COMPANY INC. 77 mo
1993-01 — 1999-10 MARATHON OIL COMPANY 82 mo

Wells (15)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11EXTEX OPERATING COMPANY12,7501985-11-01
15EXTEX OPERATING COMPANY12,7501985-11-01
12EXTEX OPERATING COMPANY12,7201985-10-16
13EXTEX OPERATING COMPANY12,7201985-10-16
14EXTEX OPERATING COMPANY12,7201985-10-16
16EXTEX OPERATING COMPANY12,7201985-10-16
10EXTEX OPERATING COMPANY12,7001984-10-22
9EXTEX OPERATING COMPANY12,7001982-11-09
8EXTEX OPERATING COMPANY12,7001981-10-01
7EXTEX OPERATING COMPANY12,6001980-06-25
142-383-01186EXTEX OPERATING COMPANY------
242-105-80060EXTEX OPERATING COMPANY------
442-383-01208EXTEX OPERATING COMPANY------
542-383-01193EXTEX OPERATING COMPANY------
642-383-01195EXTEX OPERATING COMPANY------