ONAT

Operated by MADDOX OPERATING (P-5 521101) in the LUCKY RIDGE, SW. (2100) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 18423District 09Field 55531700OilCasinghead gasSaveExport
Value, all time
$893 k
Jan 1993 – May 2026
Value, last 12 filed months
$20 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 9 leases and 32 wells, and the rule below applies to all of them.

Discovered
1977-06-01
as the register files it
Field class
Oil
the register's own label
Between wells
933 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres.

The Commission's schedule remark for this field reads: 09/01/2020

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
OilDisposition24,057 bbl$893,141
Casinghead gasProduction81 Mcf$279
Total$893,421

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 (9)

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 33.2813, -98.1961. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

33.28132, -98.19590 · 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
44.4%
4 of 9 wells
With a plug date
33.3%
3 of 9 wells
Median depth
2,185 ft
8 wells filed one
Completion to plug
20.0 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
444.4%
A plug date is filed
333.3%
BothOn the schedule and plugged. Neither fact cancels the other.
333.3%
NeitherNo plug date, and not on the schedule.
555.6%

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, 8 of 9 wells. Median 2,185 ft, with the middle half between 2,127 and 2,218 ft; the shallowest is 2,118 ft and the deepest 5,175 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, 9 of 9 wells, Jun 1977 – Apr 2000. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jun 1977 – Apr 2000
9 of 9 wells
Plug dates filed
Jul 2000 – Sep 2005
3 of 9 wells; 6 filed none

Last completion to plug: a median of 20.0 years across the 3 wells that filed both dates, with the middle half between 10.2 years and 21.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

9 wells

42-2373213042,262 ftApr 2000Jul 2000Yes
42-2373800272,118 ftNov 1992
42-2373219162,203 ftSep 1985Sep 2005Yes
42-2373212932,187 ftAug 1985
42-2373219252,183 ftJun 1980Sep 2002Yes
42-237326041 R2,119 ftJul 1979Yes
42-237321933 A2,129 ftApr 1978
42-237320072Oct 1977
42-2373154215,175 ftJun 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 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 2025110059.383.30$6,532
Sep 20250062.743.08$0
Aug 2025106063.933.01$6,777
Jul 20250066.743.32$0
Jun 202596066.483.13$6,382
May 20250060.553.23$0
Apr 2025115062.363.54$7,171
Mar 20250067.704.27$0
Feb 2025118070.884.34$8,364
Jan 20250074.324.28$0
Dec 2024114068.993.12$7,865
Nov 20240069.052.20$0
Oct 2024100071.372.28$7,137
Sep 2024108069.612.36$7,518
Aug 20240075.632.06$0
Jul 202485079.932.15$6,794
Jun 2024121078.082.63$9,448
May 20240078.812.20$0
Apr 2024118084.451.66$9,965
Mar 20240080.301.55$0
Feb 2024121076.091.78$9,207
Jan 20240073.023.30$0
Dec 202391071.262.61$6,485
Nov 20230077.892.81$0
Oct 202397085.443.09$8,288
Sep 20230089.042.74$0
Aug 2023110080.522.67$8,857
Jul 20230074.852.64$0
Jun 202399068.962.26$6,827
May 20230070.622.23$0
Apr 2023115078.122.24$8,984
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 2022101085.005.65$8,585
Oct 20220087.185.86$0
Sep 2022108084.888.16$9,167
Aug 20220094.529.13$0
Jul 2022560101.587.54$5,688
Jun 2022770115.097.98$8,862
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 2018112060.183.08$6,740
May 20180065.382.90$0
Apr 2018128063.842.90$8,172
Mar 20180061.222.79$0
Feb 201863061.782.77$3,892
Jan 20180062.874.01$0
Dec 2017115057.272.92$6,586
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 2017114045.373.00$5,172
Jul 20170043.873.09$0
Jun 201774042.493.09$3,144
May 20170045.373.26$0
Apr 201791047.933.21$4,362
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 201695041.442.92$3,937
Jul 20160041.622.92$0
Jun 2016110045.352.69$4,989
May 20160042.521.99$0
Apr 2016124036.561.99$4,533
Mar 20160033.011.79$0
Feb 2016103026.472.06$2,726
Jan 20160027.352.36$0
Dec 201569032.362.00$2,233
Nov 20150038.792.17$0
Oct 201585043.552.43$3,702
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 2015104048.152.95$5,008
Jun 20150056.152.88$0
May 201555055.212.96$3,037
Apr 201598049.822.71$4,882
Mar 20150042.892.93$0
Feb 201568044.662.98$3,037
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 201463070.464.25$4,439
Oct 201457078.303.90$4,463
Sep 201436086.164.05$3,102
Aug 201479089.394.04$7,062
Jul 201474096.564.18$7,145
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 201426095.944.81$2,494
Mar 20140095.895.06$0
Feb 201436097.406.19$3,506
Jan 201471090.404.86$6,418
Dec 201394091.824.35$8,631
Nov 201377088.853.74$6,841
Oct 20130097.423.78$0
Sep 2013550104.113.72$5,726
Aug 20131250104.253.52$13,031
Jul 201300102.523.72$0
Jun 201338094.403.93$3,587
May 201393094.834.15$8,819
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 201367091.233.42$6,112
Jan 201345091.603.42$4,122
Dec 201268086.773.42$5,900
Nov 201278086.953.62$6,782
Oct 201248089.383.40$4,290
Sep 201259094.672.92$5,586
Aug 201239092.662.91$3,614
Jul 201284085.133.02$7,151
Jun 201247079.822.52$3,752
May 201288091.612.49$8,062
Apr 2012470101.652.00$4,778
Mar 2012630105.052.22$6,618
Feb 2012450101.102.57$4,550
Jan 201261098.092.73$5,983
Dec 201140096.873.24$3,875
Nov 201137095.723.31$3,542
Oct 201174084.983.65$6,289
Sep 201146083.623.99$3,847
Aug 201135083.404.15$2,919
Jul 201176094.144.52$7,155
Jun 201142092.904.64$3,902
May 201138098.134.40$3,729
Apr 2011400105.964.33$4,238
Mar 201139096.364.06$3,758
Feb 201175085.644.18$6,423
Jan 201131086.504.59$2,682
Dec 201079085.734.35$6,773
Nov 201034080.843.80$2,749
Oct 201035078.103.51$2,734
Sep 201061072.633.98$4,430
Aug 201044073.684.42$3,242
Jul 201059072.554.74$4,280
Jun 201029070.364.91$2,040
May 201069071.124.24$4,907
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 200926071.445.48$1,857
Nov 200955074.593.75$4,102
Oct 200948072.544.11$3,482
Sep 200924065.543.06$1,573
Aug 200924067.423.22$1,618
Jul 200935061.133.46$2,140
Jun 200930066.163.90$1,985
May 200939054.743.93$2,135
Apr 200957046.773.59$2,666
Mar 200932042.144.06$1,348
Feb 200932032.814.63$1,050
Jan 200978035.865.37$2,797
Dec 20080037.105.98$0
Nov 200836055.496.86$1,998
Oct 200841075.246.92$3,085
Sep 2008650101.767.88$6,614
Aug 200800114.228.48$0
Jul 2008400131.0811.39$5,243
Jun 200800131.3313.03$0
May 2008270123.1711.57$3,326
Apr 2008430110.3110.45$4,743
Mar 2008250101.909.66$2,548
Feb 200819092.538.77$1,758
Jan 200829090.388.21$2,621
Dec 200728088.337.30$2,473
Nov 200732091.677.29$2,933
Oct 200720082.856.92$1,657
Sep 200724075.846.24$1,820
Aug 200750069.066.39$3,453
Jul 20070070.906.39$0
Jun 200735062.007.55$2,170
May 20070058.747.85$0
Apr 200725059.617.81$1,490
Mar 200719056.927.30$1,081
Feb 200722055.108.22$1,212
Jan 200732050.306.73$1,610
Dec 200628056.656.92$1,586
Nov 200615054.207.62$813
Oct 200623054.906.01$1,263
Sep 200628060.085.04$1,682
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 200623066.016.42$1,518
Apr 200636064.397.36$2,318
Mar 200630056.707.08$1,701
Feb 200627057.597.75$1,555
Jan 200684060.598.93$5,090
Dec 20050054.9413.42$0
Nov 200525054.6910.59$1,367
Oct 200555058.3413.80$3,209
Sep 200531061.4512.08$1,905
Aug 200535061.519.80$2,153
Jul 200527055.697.84$1,504
Jun 200537052.337.38$1,936
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 200530050.377.15$1,511
Feb 200536045.226.31$1,628
Jan 200549043.166.32$2,115
Dec 200428039.866.75$1,116
Nov 200428145.286.33$1,274
Oct 200430149.706.52$1,498
Sep 200435143.245.28$1,519
Aug 200450142.375.55$2,124
Jul 200431138.286.08$1,193
Jun 200470136.106.43$2,533
May 200426137.486.49$981
Apr 200430134.475.86$1,040
Mar 200457134.365.53$1,964
Feb 200434132.455.51$1,109
Jan 200453132.036.30$1,704
Dec 200354130.266.30$1,640
Nov 200327128.804.60$782
Oct 200332128.174.76$906
Sep 200368126.314.75$1,794
Aug 200324129.765.13$719
Jul 200337129.415.17$1,093
Jun 200353128.565.98$1,520
May 200331126.595.97$830
Apr 200352126.675.41$1,392
Mar 200335131.146.10$1,096
Feb 200346133.487.93$1,548
Jan 20030130.315.58$6
Dec 20020126.914.85$5
Nov 20020124.664.14$4
Oct 20020126.464.23$4
Sep 20020127.443.64$4
Aug 20020125.963.16$3
Jul 20020124.583.06$3
Jun 200227123.733.34$644
May 200222124.663.58$546
Apr 200236123.653.51$855
Mar 20020122.003.10$3
Feb 200219118.222.38$349
Jan 200222117.172.38$380
Dec 200128116.932.36$476
Nov 200136118.072.41$653
Oct 200116119.782.53$319
Sep 200129124.262.25$706
Aug 20010124.873.05$3
Jul 20010123.933.20$3
Jun 20010124.563.82$4
May 200136125.524.31$923
Apr 200139124.685.34$968
Mar 200167124.545.38$1,650
Feb 200130127.755.77$838
Jan 200162127.478.40$1,712
Dec 200061126.889.12$1,649
Nov 200055132.215.66$1,777
Oct 200038131.235.15$1,192
Sep 200071131.875.19$2,268
Aug 200033129.644.54$983
Jul 2000107128.534.09$3,057
Jun 20000129.304.40$4
May 200027127.263.68$740
Apr 200063124.513.12$1,547
Mar 200073128.422.86$2,078
Feb 200025127.622.73$693
Jan 200088125.272.48$2,226
Dec 1999157024.282.42$3,812
Nov 19990123.192.43$2
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 199887012.622.21$1,098
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 199861013.952.30$851
Jan 1998109014.702.15$1,602
Dec 19970016.322.41$0
Nov 1997105018.193.09$1,910
Oct 1997122019.253.15$2,349
Sep 1997134017.742.95$2,377
Aug 1997137017.862.55$2,447
Jul 1997286017.582.25$5,028
Jun 1997130017.242.26$2,241
May 1997127018.972.31$2,409
Apr 1997159017.882.08$2,843
Mar 19970018.951.94$0
Feb 1997142020.492.21$2,910
Jan 1997142023.483.54$3,334
Dec 1996150023.32$3,498
Nov 1996147021.97$3,230
Oct 1996157023.31$3,660
Sep 1996150022.22$3,333
Aug 1996140020.26$2,836
Jul 1996158019.55$3,089
Jun 1996162018.73$3,034
May 1996160019.43$3,109
Apr 1996156021.51$3,356
Mar 1996159019.38$3,081
Feb 1996166016.98$2,819
Jan 1996174017.07$2,970
Dec 1995161017.19$2,768
Nov 1995173016.00$2,768
Oct 1995375015.43$5,786
Sep 1995176016.18$2,848
Aug 1995183015.92$2,913
Jul 1995345015.24$5,258
Jun 1995179016.41$2,937
May 1995358017.56$6,286
Apr 1995189017.73$3,351
Mar 1995176016.44$2,893
Feb 1995184016.58$3,051
Jan 1995356015.92$5,668
Dec 1994167015.03$2,510
Nov 1994183015.90$2,910
Oct 1994282015.58$4,394
Sep 1994297115.29$4,541
Aug 1994169116.13$2,726
Jul 1994377117.56$6,620
Jun 1994188117.09$3,213
May 1994367115.88$5,828
Apr 1994181114.14$2,559
Mar 1994343112.46$4,274
Feb 1994176112.50$2,200
Jan 1994349112.66$4,418
Dec 1993367112.33$4,525
Nov 1993180114.49$2,608
Oct 1993364115.85$5,769
Sep 1993359115.03$5,396
Aug 1993183115.66$2,866
Jul 1993374115.46$5,782
Jun 1993374116.79$6,279
May 1993379117.68$6,701
Apr 1993173118.05$3,123
Mar 1993389118.14$7,056
Feb 1993377117.90$6,748
Jan 1993555116.93$9,396

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.

Oct 2025 — as filed, then multipliedworked
Oil                  110 bbl  × $ 59.38 =     $6,532
Casinghead gas         0 Mcf  × $  3.30 =         $0

────────────────────────────────────────────────────
Month total                                   $6,532

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/18423 is the state's own key, not one this site invented.