NECHES -15-

Oil · District 08 · Lease #41443

Operator: ENERGEN RESOURCES CORPORATION

Cum Oil

106k BBL

Cum Gas

436k MCF

casinghead

Wells

4

Production

2011-06 — 2026-04

Peak Month

2013-03

Production History

Cum Oil: 105,748 BBL Cum Gas: 435,939 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,395 BBL/mo

Di (annual)

168.4%

b-factor

0.8

EUR

102,191 BBL

R-squared

0.794

type

hyperbolic

Operator History (from monthly production reports)

2024-03 — 2026-07 BLACK SWAN OPCO, LLC 29 mo
2019-02 — 2024-02 DIAMONDBACK E&P LLC 61 mo
2011-06 — 2019-01 ENERGEN RESOURCES CORPORATION 92 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4BLACK SWAN OPCO, LLC111,0002011-11-29
3BLACK SWAN OPCO, LLC211,0002011-10-06
1BLACK SWAN OPCO, LLC211,0002011-01-20
2BLACK SWAN OPCO, LLC211,0002011-01-20