MADDOX, J. W. #4

Oil · District 09 · Lease #18586

Operator: NORTEX ENERGY, INC.

Cum Oil

109k BBL

Cum Gas

21 MCF

casinghead

Wells

19

Production

1993-01 — 2026-04

Peak Month

1995-11

Production History

Cum Oil: 108,678 BBL Cum Gas: 21 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

702 BBL/mo

Di (annual)

16.8%

b-factor

0.5

EUR

80,921 BBL

R-squared

0.559

type

hyperbolic

Operator History (from monthly production reports)

2007-04 — 2026-07 NORTEX ENERGY, INC. 232 mo
1994-09 — 2007-03 MUENSTER DRILLING CO. INC. 151 mo
1993-01 — 1994-08 HUGHES, DAN JR., ESTATE OF 20 mo

Wells (19)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
20NORTEX ENERGY, INC.11,1002008-04-22
19NORTEX ENERGY, INC.11,9992006-06-28
17NORTEX ENERGY, INC.11,9992005-09-22
16NORTEX ENERGY, INC.11,9902005-06-28
15NORTEX ENERGY, INC.11,9992005-03-10
1ANORTEX ENERGY, INC.11,2022003-01-14
14NORTEX ENERGY, INC.12,0001995-05-24
12NORTEX ENERGY, INC.12,0001994-11-28
11NORTEX ENERGY, INC.19951991-08-19
10NORTEX ENERGY, INC.19901990-11-30
9NORTEX ENERGY, INC.11,0001987-08-25
8NORTEX ENERGY, INC.11,0001985-09-19
7NORTEX ENERGY, INC.11,1001984-08-23
6NORTEX ENERGY, INC.11,1001982-11-15
5NORTEX ENERGY, INC.11,1501979-11-05
3NORTEX ENERGY, INC.11,1001978-09-08
4NORTEX ENERGY, INC.11,1001978-09-08
1NORTEX ENERGY, INC.11,2001977-08-11
2NORTEX ENERGY, INC.11,2001977-08-11