K M A SOUTHWEST EXTENSION UNIT

Oil · District 09 · Lease #16235

Operator: STEPHENS & JOHNSON OPERATING CO.

Fields: K-M-A

Cum Oil

316k BBL

Cum Gas

19 MCF

casinghead

Wells

16

Production

1993-01 — 2026-04

Peak Month

1996-07

Production History

Cum Oil: 315,621 BBL Cum Gas: 19 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

987 BBL/mo

Di (annual)

1.8%

b-factor

0.0

EUR

389,581 BBL

R-squared

0.405

type

exponential

Operator History (from monthly production reports)

1993-09 — 2026-07 STEPHENS & JOHNSON OPERATING CO. 395 mo
1993-01 — 1993-08 S & J OPERATING CO. 8 mo

Wells (16)

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