UNIVERSITY 15 "A"

Oil · District 08 · Lease #25152

Operator: STEPHENS & JOHNSON OPERATING CO.

Fields: FULLERTON

Cum Oil

150k BBL

Cum Gas

275k MCF

casinghead

Wells

7

Production

1993-01 — 2026-04

Peak Month

2009-09

Production History

Cum Oil: 149,647 BBL Cum Gas: 274,858 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,153 BBL/mo

Di (annual)

22.8%

b-factor

1.0

EUR

152,728 BBL

R-squared

0.793

type

hyperbolic

Operator History (from monthly production reports)

2008-06 — 2026-07 STEPHENS & JOHNSON OPERATING CO. 218 mo
2000-03 — 2008-05 FOSSIL ROCK RESOURCES, INC. 99 mo
1999-10 — 2000-02 RUST OPERATING CO., INC. 5 mo
1998-09 — 1999-09 RUST OIL CORP. 13 mo
1993-01 — 1998-08 LIMARK CORPORATION 68 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4STEPHENS & JOHNSON OPERATING CO.27,5002019-10-25
2STEPHENS & JOHNSON OPERATING CO.27,5002017-08-30
1STEPHENS & JOHNSON OPERATING CO.27,5002014-09-04
8STEPHENS & JOHNSON OPERATING CO.17,5002011-12-21
6STEPHENS & JOHNSON OPERATING CO.17,5002010-06-21
5STEPHENS & JOHNSON OPERATING CO.17,5002009-07-20
3STEPHENS & JOHNSON OPERATING CO.17,5001979-04-16