MADDOX, J. W. #4

Operated by NORTEX ENERGY, INC. (P-5 613523) in the MONTAGUE COUNTY REGULAR field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 18586District 09Field 62528001OilCasinghead gasSaveExport
Value, all time
$4.4 M
Jan 1993 – May 2026
Value, last 12 filed months
$50 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The Railroad Commission's own record for the field this lease produces from, including the spacing rule that governs how close together its wells may be drilled.

These are facts about the field, not about this lease. The field holds 449 leases and 3,040 wells, and the rule below applies to all of them.

Discovered
1939-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

What this lease produced, and what it was worth

Oil and condensate are valued on the volume the state records as disposed of; gas and casinghead gas on the volume produced. They are different columns of different files, and the difference is not cosmetic.

StreamBasisVolumeValue
OilDisposition108,964 bbl$4,382,166
Casinghead gasProduction21 Mcf$0
Total$4,382,166

21 Mcf of this lease's gas, across 21 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.

Wells on this lease (19)

Every wellbore the Railroad Commission records against this lease key, with the depth, the last completion and the plug date exactly as filed. A well with no plug date is not stated to be producing — the state files no such flag.

These wells centre on 33.9162, -97.7195. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

33.91624, -97.71789 · centre of the wells drawn, derived

What these wells add up to

Every figure below is counted over all of this lease's wells, not over the rows listed above. The Railroad Commission files two facts about a well's state — a plug date and a proration-schedule flag — and a well can carry both, so they are published as separate counts and never merged into a status.

On the schedule
10.5%
2 of 19 wells
With a plug date
10.5%
2 of 19 wells
Median depth
1,031 ft
16 wells filed one
Completion to plug
12.9 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
210.5%
A plug date is filed
210.5%
BothOn the schedule and plugged. Neither fact cancels the other.
210.5%
NeitherNo plug date, and not on the schedule.
1789.5%

A plug date is the date the Commission recorded the wellbore as sealed with cement and abandoned. It is the only end-of-life fact Texas files. There is no "active" flag on a well, so this page does not print one — a well with no plug date is not stated to be producing.

How deep they were drilled

Total depth in feet, 16 of 19 wells. Median 1,031 ft, with the middle half between 992 and 1,096 ft; the shallowest is 970 ft and the deepest 2,017 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 18 of 19 wells, Oct 1977 – Jun 2008. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Oct 1977 – Jun 2008
18 of 19 wells; 1 filed none
Plug dates filed
Jan 2008 – Aug 2010
2 of 19 wells; 17 filed none

Last completion to plug: a median of 12.9 years across the 2 wells that filed both dates, with the middle half between 7.5 years and 18.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

19 wells

42-337050131A1,202 ft
42-33734012201,082 ftJun 2008Aug 2010Yes
42-33733848191,012 ftJul 2006
42-3373376117997 ftOct 2005
42-33733709161,899 ftAug 2005
42-33733687151,095 ftApr 2005
42-3373099211,081 ftDec 2002
42-337327319986 ftDec 2002
42-33733024141,050 ftMay 1995
42-33732998122,017 ftDec 1994
42-3373288811990 ftOct 1991
42-3373285810985 ftApr 1991
42-337325828992 ftOct 1985
42-337324117970 ftOct 1984
42-3373129451,010 ftJun 1984Jan 2008Yes
42-3373200261,100 ftNov 1982
42-337311313Oct 1978
42-337311304Sep 1978
42-337309912Oct 1977

The API number is the state's, prefixed 42 for Texas. A well is matched to this lease by the lease key the Commission files on the wellbore record, so a well that has moved between leases appears under each one it was filed against.

Every month this lease reported (401)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

401 months

May 202600106.413.05$0
Apr 2026212098.932.87$20,973
Mar 20260089.753.15$0
Feb 2026139063.503.75$8,827
Jan 20260059.138.00$0
Dec 2025154056.664.41$8,726
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 2025180063.933.01$11,507
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 2025162060.553.23$9,809
Apr 20250062.363.54$0
Mar 2025145067.704.27$9,817
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 2024143068.993.12$9,866
Nov 20240069.052.20$0
Oct 2024183071.372.28$13,061
Sep 20240069.612.36$0
Aug 2024180075.632.06$13,613
Jul 20240079.932.15$0
Jun 2024161078.082.63$12,571
May 20240078.812.20$0
Apr 2024183084.451.66$15,454
Mar 20240080.301.55$0
Feb 2024140076.091.78$10,653
Jan 20240073.023.30$0
Dec 2023172071.262.61$12,257
Nov 20230077.892.81$0
Oct 2023168085.443.09$14,354
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 2023168074.852.64$12,575
Jun 20230068.962.26$0
May 2023170070.622.23$12,005
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 2023170076.533.39$13,010
Dec 20220076.415.73$0
Nov 2022171085.005.65$14,535
Oct 20220087.185.86$0
Sep 2022160084.888.16$13,581
Aug 20220094.529.13$0
Jul 20221680101.587.54$17,065
Jun 202200115.097.98$0
May 20221570109.378.43$17,171
Apr 20221610104.226.84$16,779
Mar 202200108.885.08$0
Feb 2022160091.054.86$14,568
Jan 20220081.844.54$0
Dec 2021159071.323.90$11,340
Nov 20210077.435.24$0
Oct 2021153079.795.71$12,208
Sep 20210069.865.35$0
Aug 2021142066.024.22$9,375
Jul 2021156070.783.98$11,042
Jun 20210069.493.38$0
May 2021145063.483.02$9,205
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 202165057.805.55$3,757
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 2020138038.772.71$5,350
Oct 20200036.972.48$0
Sep 2020137037.091.99$5,081
Aug 20200039.982.39$0
Jul 2020207038.371.83$7,943
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 2020138014.751.80$2,036
Mar 2020153030.341.86$4,642
Feb 20200049.881.98$0
Jan 2020160057.252.09$9,160
Dec 2019110059.012.30$6,491
Nov 2019146055.302.75$8,074
Oct 2019158053.472.42$8,448
Sep 20190055.052.66$0
Aug 2019137053.112.30$7,276
Jul 2019138056.272.46$7,765
Jun 20190052.782.49$0
May 2019142058.482.74$8,304
Apr 2019152062.632.75$9,520
Mar 2019162056.803.06$9,202
Feb 2019140050.852.79$7,119
Jan 201995046.033.23$4,373
Dec 2018155046.594.19$7,221
Nov 2018163052.934.24$8,628
Oct 2018152061.443.40$9,339
Sep 2018166059.543.11$9,884
Aug 2018156059.403.07$9,266
Jul 2018168065.142.93$10,944
Jun 20180060.183.08$0
May 2018162065.382.90$10,592
Apr 20180063.842.90$0
Mar 2018158061.222.79$9,673
Feb 20180061.782.77$0
Jan 2018141062.874.01$8,865
Dec 20170057.272.92$0
Nov 2017146055.423.12$8,091
Oct 2017136049.292.98$6,703
Sep 20170047.523.09$0
Aug 2017144045.373.00$6,533
Jul 2017141043.873.09$6,186
Jun 2017219042.493.09$9,305
May 2017124045.373.26$5,626
Apr 2017146047.933.21$6,998
Mar 2017156046.772.98$7,296
Feb 2017155050.452.95$7,820
Jan 20170049.413.42$0
Dec 2016140048.763.72$6,826
Nov 2016148042.492.64$6,289
Oct 2016152046.193.09$7,021
Sep 2016148041.553.10$6,149
Aug 2016157041.442.92$6,506
Jul 2016163041.622.92$6,784
Jun 2016310045.352.69$14,059
May 2016184042.521.99$7,824
Apr 2016154036.561.99$5,630
Mar 2016304033.011.79$10,035
Feb 20160026.472.06$0
Jan 2016301027.352.36$8,232
Dec 2015203032.362.00$6,569
Nov 2015156038.792.17$6,051
Oct 2015150043.552.43$6,533
Sep 2015152042.992.76$6,534
Aug 2015157040.162.87$6,305
Jul 2015286048.152.95$13,771
Jun 2015158056.152.88$8,872
May 2015154055.212.96$8,502
Apr 2015149049.822.71$7,423
Mar 2015296042.892.93$12,695
Feb 2015152044.662.98$6,788
Jan 2015155043.433.10$6,732
Dec 2014303054.693.59$16,571
Nov 2014151070.464.25$10,639
Oct 2014154078.303.90$12,058
Sep 2014156086.164.05$13,441
Aug 2014247089.394.04$22,079
Jul 2014302096.564.18$29,161
Jun 201489098.164.74$8,736
May 2014152094.734.73$14,399
Apr 2014151095.944.81$14,487
Mar 2014164095.895.06$15,726
Feb 2014149097.406.19$14,513
Jan 20140090.404.86$0
Dec 2013151091.824.35$13,865
Nov 2013150088.853.74$13,328
Oct 2013155097.423.78$15,100
Sep 2013780104.113.72$8,121
Aug 20133250104.253.52$33,881
Jul 20131590102.523.72$16,301
Jun 2013166094.403.93$15,670
May 2013159094.834.15$15,078
Apr 2013152093.964.28$14,282
Mar 2013158093.623.91$14,792
Feb 2013151091.233.42$13,776
Jan 2013321091.603.42$29,404
Dec 2012159086.773.42$13,796
Nov 2012155086.953.62$13,477
Oct 2012314089.383.40$28,065
Sep 2012158094.672.92$14,958
Aug 2012153092.662.91$14,177
Jul 2012301085.133.02$25,624
Jun 2012149079.822.52$11,893
May 2012314091.612.49$28,766
Apr 20121580101.652.00$16,061
Mar 20124120105.052.22$43,281
Feb 20121470101.102.57$14,862
Jan 2012155098.092.73$15,204
Dec 2011318096.873.24$30,805
Nov 2011159095.723.31$15,219
Oct 2011308084.983.65$26,174
Sep 2011157083.623.99$13,128
Aug 2011312083.404.15$26,021
Jul 2011310094.144.52$29,183
Jun 2011155092.904.64$14,400
May 2011302098.134.40$29,635
Apr 20113050105.964.33$32,318
Mar 2011155096.364.06$14,936
Feb 2011159085.644.18$13,617
Jan 2011292086.504.59$25,258
Dec 2010300085.734.35$25,719
Nov 2010145080.843.80$11,722
Oct 2010144078.103.51$11,246
Sep 2010289072.633.98$20,990
Aug 2010295073.684.42$21,736
Jul 2010150072.554.74$10,883
Jun 2010447070.364.91$31,451
May 2010153071.124.24$10,881
Apr 2010308081.694.12$25,161
Mar 2010150078.394.39$11,759
Feb 2010294073.585.44$21,633
Jan 2010456074.365.96$33,908
Dec 20090071.445.48$0
Nov 2009150074.593.75$11,189
Oct 2009304072.544.11$22,052
Sep 2009147065.543.06$9,634
Aug 2009290067.423.22$19,552
Jul 2009455061.133.46$27,814
Jun 2009306066.163.90$20,245
May 2009150054.743.93$8,211
Apr 2009304046.773.59$14,218
Mar 2009458042.144.06$19,300
Feb 2009150032.814.63$4,922
Jan 2009306035.865.37$10,973
Dec 2008459037.105.98$17,029
Nov 2008302055.496.86$16,758
Oct 2008310075.246.92$23,324
Sep 20084670101.767.88$47,522
Aug 20081540114.228.48$17,590
Jul 20083090131.0811.39$40,504
Jun 20083090131.3313.03$40,581
May 20083030123.1711.57$37,321
Apr 20081550110.3110.45$17,098
Mar 20084590101.909.66$46,772
Feb 2008314092.538.77$29,054
Jan 2008302090.388.21$27,295
Dec 2007458088.337.30$40,455
Nov 2007314091.677.29$28,784
Oct 2007460082.856.92$38,111
Sep 2007319075.846.24$24,193
Aug 2007499069.066.39$34,461
Jul 2007471070.906.39$33,394
Jun 2007316062.007.55$19,592
May 2007475058.747.85$27,902
Apr 2007467059.617.81$27,838
Mar 2007467056.927.30$26,582
Feb 2007162055.108.22$8,926
Jan 2007320050.306.73$16,096
Dec 2006470056.656.92$26,626
Nov 2006156054.207.62$8,455
Oct 2006619054.906.01$33,983
Sep 2006310060.085.04$18,625
Aug 2006321068.717.34$22,056
Jul 2006159069.376.34$11,030
Jun 2006308066.286.38$20,414
May 2006158066.016.42$10,430
Apr 2006475064.397.36$30,585
Mar 2006289056.707.08$16,386
Feb 2006484057.597.75$27,874
Jan 2006299060.598.93$18,116
Dec 2005317054.9413.42$17,416
Nov 2005473054.6910.59$25,868
Oct 2005160058.3413.80$9,334
Sep 2005324061.4512.08$19,910
Aug 2005322061.519.80$19,806
Jul 20050055.697.84$0
Jun 2005332052.337.38$17,374
May 2005319045.226.65$14,425
Apr 2005165049.207.36$8,118
Mar 2005161050.377.15$8,110
Feb 2005156045.226.31$7,054
Jan 2005163043.166.32$7,035
Dec 20040039.866.75$0
Nov 2004314045.286.33$14,218
Oct 2004166049.706.52$8,250
Sep 20040043.245.28$0
Aug 2004321042.375.55$13,601
Jul 20040038.286.08$0
Jun 2004315036.106.43$11,372
May 2004160037.486.49$5,997
Apr 2004319034.475.86$10,996
Mar 2004160034.365.53$5,498
Feb 20040032.455.51$0
Jan 2004320032.036.30$10,250
Dec 20030030.266.30$0
Nov 2003163028.804.60$4,694
Oct 2003161028.174.76$4,535
Sep 2003153026.314.75$4,025
Aug 2003159029.765.13$4,732
Jul 2003325029.415.17$9,558
Jun 2003161028.565.98$4,598
May 2003115026.595.97$3,058
Apr 2003317026.675.41$8,454
Mar 2003158031.146.10$4,920
Feb 2003147033.487.93$4,922
Jan 20030030.315.58$0
Dec 200252026.914.85$1,399
Nov 2002317024.664.14$7,817
Oct 20020026.464.23$0
Sep 2002150027.443.64$4,116
Aug 2002147025.963.16$3,816
Jul 20020024.583.06$0
Jun 2002169023.733.34$4,010
May 2002154024.663.58$3,798
Apr 2002153023.653.51$3,618
Mar 2002126022.003.10$2,772
Feb 20020018.222.38$0
Jan 2002318017.172.38$5,460
Dec 2001312016.932.36$5,282
Nov 2001163018.072.41$2,945
Oct 2001166019.782.53$3,283
Sep 2001162024.262.25$3,930
Aug 2001162024.873.05$4,029
Jul 2001128023.933.20$3,063
Jun 2001163024.563.82$4,003
May 2001329025.524.31$8,396
Apr 2001156024.685.34$3,850
Mar 2001315024.545.38$7,730
Feb 2001164027.755.77$4,551
Jan 2001375027.478.40$10,301
Dec 2000128026.889.12$3,441
Nov 2000180032.215.66$5,798
Oct 2000182031.235.15$5,684
Sep 2000369031.875.19$11,760
Aug 2000371029.644.54$10,996
Jul 2000345028.534.09$9,843
Jun 2000180029.304.40$5,274
May 2000479027.263.68$13,058
Apr 2000534024.513.12$13,088
Mar 2000515028.422.86$14,636
Feb 2000563027.622.73$15,550
Jan 2000573025.272.48$14,480
Dec 1999362024.282.42$8,789
Nov 1999526023.192.43$12,198
Oct 1999529020.982.80$11,098
Sep 1999370021.752.62$8,048
Aug 1999313019.262.88$6,028
Jul 1999561017.892.37$10,036
Jun 1999359015.942.36$5,722
May 1999506015.792.32$7,990
Apr 1999366015.102.21$5,527
Mar 1999506012.471.84$6,310
Feb 199950209.981.82$5,010
Jan 1999538010.381.90$5,584
Dec 199840009.201.77$3,680
Nov 1998562010.892.19$6,120
Oct 1998362012.421.97$4,496
Sep 1998570012.592.08$7,176
Aug 1998377011.301.91$4,260
Jul 1998697011.742.24$8,183
Jun 1998358011.242.24$4,024
May 1998571012.622.21$7,206
Apr 1998563013.042.51$7,342
Mar 1998751012.802.31$9,613
Feb 1998661013.952.30$9,221
Jan 1998317014.702.15$4,660
Dec 1997545016.322.41$8,894
Nov 1997534018.193.09$9,713
Oct 1997363019.253.15$6,988
Sep 1997560017.742.95$9,934
Aug 1997375017.862.55$6,698
Jul 1997519017.582.25$9,124
Jun 1997374017.242.26$6,448
May 1997350018.972.31$6,640
Apr 1997707017.882.08$12,641
Mar 1997660018.951.94$12,507
Feb 1997373020.492.21$7,643
Jan 1997540023.483.54$12,679
Dec 1996679023.32$15,834
Nov 1996363021.97$7,975
Oct 1996663023.31$15,455
Sep 1996529022.22$11,754
Aug 1996683020.26$13,838
Jul 1996658019.55$12,864
Jun 1996844018.73$15,808
May 1996676019.43$13,135
Apr 1996675021.51$14,519
Mar 1996753019.38$14,593
Feb 1996500016.98$8,490
Jan 19961,191017.07$20,330
Dec 1995559017.19$9,609
Nov 19951,026016.00$16,416
Oct 1995919015.43$14,180
Sep 1995726016.18$11,747
Aug 19951,011015.92$16,095
Jul 1995869015.24$13,244
Jun 1995629016.41$10,322
May 1995890017.56$15,628
Apr 1995889017.73$15,762
Mar 1995687016.44$11,294
Feb 1995770016.58$12,767
Jan 1995935015.92$14,885
Dec 1994749015.03$11,257
Nov 1994892015.90$14,183
Oct 1994515015.58$8,024
Sep 1994624115.29$9,541
Aug 1994730116.13$11,775
Jul 1994516117.56$9,061
Jun 1994879117.09$15,022
May 1994792115.88$12,577
Apr 1994657114.14$9,290
Mar 1994774112.46$9,644
Feb 1994643112.50$8,038
Jan 1994497112.66$6,292
Dec 1993383112.33$4,722
Nov 1993403114.49$5,839
Oct 1993531115.85$8,416
Sep 1993391115.03$5,877
Aug 1993517115.66$8,096
Jul 1993776115.46$11,997
Jun 1993524116.79$8,798
May 1993776117.68$13,720
Apr 1993517118.05$9,332
Mar 1993789118.14$14,312
Feb 1993901117.90$16,128
Jan 1993634116.93$10,734

How to read this page

The arithmetic is one multiplication per stream per month. Here it is, worked, on a real row from the table above.

Apr 2026 — as filed, then multipliedworked
Oil                  212 bbl  × $ 98.93 =    $20,973
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $20,973

The volumes are the state's, unchanged

Every barrel and every Mcf on this page is a number the Railroad Commission of Texas published in its monthly production query. Nothing is modelled, estimated or filled in.

The dollars are a multiplication, not a valuation

Volume × a published monthly price. It is not what the operator was paid: it takes no account of a contract, a differential, a transportation deduction, or the share any one owner holds.

Oil and gas are priced differently

Oil is a Texas realisation — the crude oil first purchase price. Gas is a benchmark, because no free Texas wellhead gas series exists at any date. The prices page publishes the difference rather than correcting it away.

A lease is not a well

The state reports oil on lease and gas on well, and this page is the lease grain. 09/O/18586 is the state's own key, not one this site invented.