MANGOLD TRACT 23

Oil · District 09 · Lease #32437

Operator: STEPHENS & JOHNSON OPERATING CO.

Cum Oil

205k BBL

Cum Gas

80k MCF

casinghead

Wells

3

Production

2013-02 — 2026-04

Peak Month

2014-11

Production History

Cum Oil: 204,671 BBL Cum Gas: 79,710 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,343 BBL/mo

Di (annual)

71.0%

b-factor

0.6

EUR

234,301 BBL

R-squared

0.857

type

hyperbolic

Operator History (from monthly production reports)

2013-02 — 2026-07 STEPHENS & JOHNSON OPERATING CO. 162 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4STEPHENS & JOHNSON OPERATING CO.24,1002024-07-11
3STEPHENS & JOHNSON OPERATING CO.14,1002014-08-21
1STEPHENS & JOHNSON OPERATING CO.24,0522012-08-23