UNIVERSITY DEBORAH

Oil · District 7C · Lease #15374

Operator: SUMMIT PETROLEUM LLC

Cum Oil

75k BBL

Cum Gas

114k MCF

casinghead

Wells

2

Production

2003-03 — 2026-04

Peak Month

2004-05

Production History

Cum Oil: 74,715 BBL Cum Gas: 114,490 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,820 BBL/mo

Di (annual)

62.1%

b-factor

0.5

EUR

66,107 BBL

R-squared

0.924

type

hyperbolic

Operator History (from monthly production reports)

2021-04 — 2026-07 EXTEX OPERATING COMPANY 64 mo
2018-09 — 2021-03 PBEX OPERATIONS, LLC 31 mo
2007-10 — 2018-08 LEGACY RESERVES OPERATING LP 131 mo
2007-05 — 2007-09 SUMMIT PETROLEUM LLC 5 mo
2003-03 — 2007-04 HENRY PETROLEUM LP 50 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2EXTEX OPERATING COMPANY17,5002003-10-28
1EXTEX OPERATING COMPANY17,2002002-12-23