COLE RANCH -35-

Oil · District 08 · Lease #40428

Operator: ENERGEN RESOURCES CORPORATION

Cum Oil

2.1M BBL

Cum Gas

10.5M MCF

casinghead

Wells

40

Production

2010-07 — 2026-04

Peak Month

2015-09

Production History

Cum Oil: 2,127,678 BBL Cum Gas: 10,513,927 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

48,695 BBL/mo

Di (annual)

144.2%

b-factor

1.3

EUR

2,510,902 BBL

R-squared

0.965

type

hyperbolic

Operator History (from monthly production reports)

2019-02 — 2026-07 DIAMONDBACK E&P LLC 90 mo
2010-07 — 2019-01 ENERGEN RESOURCES CORPORATION 103 mo

Wells (40)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
107HDIAMONDBACK E&P LLC19,5002014-10-23
207HDIAMONDBACK E&P LLC19,5002014-10-23
307HDIAMONDBACK E&P LLC29,5002014-10-23
4513DIAMONDBACK E&P LLC112,0002013-06-07
4009DIAMONDBACK E&P LLC112,0002013-05-06
4008DIAMONDBACK E&P LLC112,0002013-05-03
4106DIAMONDBACK E&P LLC212,0002013-05-03
4407DIAMONDBACK E&P LLC112,0002013-05-01
4511DIAMONDBACK E&P LLC112,0002013-04-29
4512DIAMONDBACK E&P LLC112,0002013-04-29
4510DIAMONDBACK E&P LLC112,0002013-04-26
4408DIAMONDBACK E&P LLC112,0002013-04-24
4509DIAMONDBACK E&P LLC111,5002012-06-01
4105DIAMONDBACK E&P LLC112,0002011-06-17
4507DIAMONDBACK E&P LLC212,0002011-06-17
4102DIAMONDBACK E&P LLC112,0002011-03-17
4004DIAMONDBACK E&P LLC112,0002011-02-09
4006DIAMONDBACK E&P LLC112,0002011-02-09
4007DIAMONDBACK E&P LLC212,0002011-02-09
4103DIAMONDBACK E&P LLC112,0002011-02-09
4104DIAMONDBACK E&P LLC212,0002011-02-09
4406DIAMONDBACK E&P LLC112,0002011-01-13
4002DIAMONDBACK E&P LLC112,0002010-12-17
4003DIAMONDBACK E&P LLC212,0002010-12-17
4005DIAMONDBACK E&P LLC212,0002010-12-17
4403DIAMONDBACK E&P LLC112,0002010-12-17
4404DIAMONDBACK E&P LLC112,0002010-12-17
4405DIAMONDBACK E&P LLC112,0002010-12-17
4503DIAMONDBACK E&P LLC112,0002010-12-17
4504DIAMONDBACK E&P LLC112,0002010-12-17
4505DIAMONDBACK E&P LLC112,0002010-12-17
4506DIAMONDBACK E&P LLC112,0002010-12-17
4508DIAMONDBACK E&P LLC112,0002010-12-17
4402DIAMONDBACK E&P LLC112,0002010-11-30
4101DIAMONDBACK E&P LLC112,0002010-11-23
4502DIAMONDBACK E&P LLC112,0002010-10-27
1WDDIAMONDBACK E&P LLC15,5002010-09-20
4401DIAMONDBACK E&P LLC112,0002010-04-28
4001DIAMONDBACK E&P LLC112,0002010-04-02
4501DIAMONDBACK E&P LLC112,0002010-04-02