UNIVERSITY 15 "A"

Oil // district 10 // lease#25152

op: STEPHENS & JOHNSON OPERATING CO.

fields: FULLERTON

cum_oil

149k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2026-03

peak_month

2010-11

-- production_history

cum_oil: 148,825 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,203 BBL/mo

Di (annual)

27.8%

b-factor

1.2

EUR

159,503 BBL

R-squared

0.791

type

hyperbolic

-- 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
3RAM EXPLORATION CO.17,5001979-04-16
EOF // data source: Texas Railroad Commission // 2026