MANGOLD TRACT 23

Oil · District 13 · Lease #32437

Operator: STEPHENS & JOHNSON OPERATING CO.

Cum Oil

204k BBL

Cum Gas

0 MCF

Wells

3

Production

2013-02 — 2026-03

Peak Month

2013-07

Production History

Cum Oil: 203,687 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

5,977 BBL/mo

Di (annual)

67.1%

b-factor

0.6

EUR

232,326 BBL

R-squared

0.864

type

hyperbolic

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
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