UNIVERSITY -N-

Oil · District 7C · Lease #9748

Operator: MARATHON OIL COMPANY

Cum Oil

172k BBL

Cum Gas

682k MCF

casinghead

Wells

16

Production

1993-01 — 2026-04

Peak Month

1997-10

Production History

Cum Oil: 172,148 BBL Cum Gas: 682,258 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,007 BBL/mo

Di (annual)

6.5%

b-factor

0.0

EUR

179,196 BBL

R-squared

0.749

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 (16)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
14EXTEX OPERATING COMPANY12,7001985-09-16
15EXTEX OPERATING COMPANY12,7001985-09-16
16EXTEX OPERATING COMPANY12,7001985-09-16
12EXTEX OPERATING COMPANY22,7001984-10-22
13EXTEX OPERATING COMPANY12,7001984-10-22
10EXTEX OPERATING COMPANY12,7001982-10-22
11EXTEX OPERATING COMPANY12,7001982-10-22
9EXTEX OPERATING COMPANY12,7001982-10-22
5EXTEX OPERATING COMPANY12,7001981-10-15
8EXTEX OPERATING COMPANY12,7001981-10-15
6EXTEX OPERATING COMPANY12,7001981-10-01
7EXTEX OPERATING COMPANY12,7001981-09-23
1EXTEX OPERATING COMPANY12,6401979-02-08
242-383-01191EXTEX OPERATING COMPANY------
342-383-01205EXTEX OPERATING COMPANY------
442-383-01209EXTEX OPERATING COMPANY------