BIRK

Oil · District 09 · Lease #15516

Operator: STEPHENS & JOHNSON OPERATING CO.

Fields: K-M-A

Cum Oil

14k BBL

Cum Gas

19 MCF

casinghead

Wells

11

Production

1993-01 — 2026-04

Peak Month

1993-10

Production History

Cum Oil: 14,323 BBL Cum Gas: 19 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

151 BBL/mo

Di (annual)

9.0%

b-factor

0.0

EUR

19,954 BBL

R-squared

0.809

type

exponential

Operator History (from monthly production reports)

2002-03 — 2026-07 HEYDRICK PETROLEUM COMPANY 293 mo
1993-09 — 2002-02 STEPHENS & JOHNSON OPERATING CO. 102 mo
1993-01 — 1993-08 S & J OPERATING CO. 8 mo

Wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7HEYDRICK PETROLEUM COMPANY14,2102011-06-27
1042-485-91087HEYDRICK PETROLEUM COMPANY------
1142-485-01681HEYDRICK PETROLEUM COMPANY------
1342-485-91089HEYDRICK PETROLEUM COMPANY------
1W42-485-91081HEYDRICK PETROLEUM COMPANY------
2B42-485-01679HEYDRICK PETROLEUM COMPANY------
3B42-485-91083HEYDRICK PETROLEUM COMPANY------
5BW42-485-14308HEYDRICK PETROLEUM COMPANY------
6BW42-485-12989HEYDRICK PETROLEUM COMPANY------
842-485-91086HEYDRICK PETROLEUM COMPANY------
8W42-485-91086HEYDRICK PETROLEUM COMPANY------