UNIVERSITY -C-

Oil · District 08 · Lease #4390

Operator: WINN OPERATING, LLC

Cum Oil

34k BBL

Cum Gas

123k MCF

casinghead

Wells

3

Production

1993-01 — 1997-11

Peak Month

1993-08

Production History

Cum Oil: 33,536 BBL Cum Gas: 122,949 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,006 BBL/mo

Di (annual)

34.8%

b-factor

0.0

EUR

34,639 BBL

R-squared

0.449

type

exponential

Operator History (from monthly production reports)

2022-06 — 2026-07 WINN OPERATING, LLC 50 mo
2018-03 — 2022-05 MAMMOTH EXPLORATION LLC 51 mo
2010-09 — 2018-02 SABER OIL & GAS VENTURES, LLC 90 mo
1993-01 — 2010-08 CITATION OIL & GAS CORP. 212 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5DCITATION OIL & GAS CORP.112,5851983-06-08
4WINN OPERATING LLC112,5401978-09-19
142-003-05155CITATION OIL & GAS CORP.------