UNIVERSITY -A-

Oil · District 08 · Lease #14151

Operator: STEPHENS & JOHNSON OPERATING CO.

Fields: FULLERTON

Cum Oil

367k BBL

Cum Gas

784k MCF

casinghead

Wells

9

Production

1993-01 — 2026-04

Peak Month

2010-11

Production History

Cum Oil: 367,415 BBL Cum Gas: 784,052 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,663 BBL/mo

Di (annual)

11.8%

b-factor

0.4

EUR

378,896 BBL

R-squared

0.899

type

hyperbolic

Operator History (from monthly production reports)

2004-03 — 2026-07 STEPHENS & JOHNSON OPERATING CO. 269 mo
2001-04 — 2004-02 ICA ENERGY OPERATING, L.L.C. 35 mo
2000-03 — 2001-03 3TEC ENERGY CORPORATION 13 mo
1995-02 — 2000-02 FLOYD OPERATING COMPANY 61 mo
1993-01 — 1995-01 CONOCO INC. 25 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
17STEPHENS & JOHNSON OPERATING CO.17,5002010-06-07
16STEPHENS & JOHNSON OPERATING CO.17,5002007-11-15
15STEPHENS & JOHNSON OPERATING CO.17,5002007-02-14
13STEPHENS & JOHNSON OPERATING CO.17,5002006-06-13
14STEPHENS & JOHNSON OPERATING CO.17,5002006-06-13
12STEPHENS & JOHNSON OPERATING CO.17,5002005-04-28
6STEPHENS & JOHNSON OPERATING CO.15,5001988-02-18
9STEPHENS & JOHNSON OPERATING CO.211,3001986-08-01
442-003-00277STEPHENS & JOHNSON OPERATING CO.------