K M A SOUTHWEST EXTENSION UNIT

Oil // district 13 // lease#16235

op: STEPHENS & JOHNSON OPERATING CO.

fields: K-M-A

cum_oil

314k BBL

cum_gas

0 MCF

wells

16

production

1993-01 — 2026-03

peak_month

1996-07

-- production_history

cum_oil: 313,616 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

982 BBL/mo

Di (annual)

1.8%

b-factor

0.0

EUR

392,082 BBL

R-squared

0.396

type

exponential

-- wells (16)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
18STEPHENS & JOHNSON OPERATING CO.34,0602017-07-20
16WSTEPHENS & JOHNSON OPERATING CO.23,9212011-09-12
10W42-485-14367--------
11W42-485-91304--------
12W42-485-05290--------
13W42-485-16195--------
17W42-485-31388--------
1W42-485-91294--------
242-485-05355--------
3W42-485-05360--------
442-485-91297--------
5W42-485-91298--------
642-485-91299--------
742-485-14442--------
842-485-91301--------
942-485-91302--------
EOF // data source: Texas Railroad Commission // 2026