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COWDEN RANCH "18"

Operated by RUST OIL CORP. (P-5 737890) in the COWDEN (CISCO) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 30785District 08Field 21287250Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$7.3 M
Jan 1993 – May 2026
Value, last 12 filed months
$55 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The COWDEN (CISCO) field

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 35 leases and 94 wells, and the rule below applies to all of them.

Discovered
1955-08-15
as the register files it
Field class
Oil
the register's own label
Between wells
1,120 ft
minimum
From a lease line
560 ft
minimum

A drilling unit in this field needs at least 80 acres.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

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
OilDisposition182,601 bbl$6,491,731
Casinghead gasProduction221,662 Mcf$779,691
Total$7,271,422

30,705 Mcf of this lease's gas, across 48 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 (4)

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 31.8476, -102.5220. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

31.84598, -102.52156 · 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
50.0%
2 of 4 wells
With a plug date
25.0%
1 of 4 wells
Median depth
8,975 ft
4 wells filed one
Completion to plug
12.5 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
250.0%
A plug date is filed
125.0%
BothOn the schedule and plugged. Neither fact cancels the other.
125.0%
NeitherNo plug date, and not on the schedule.
250.0%

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

Between 8,950 and 9,000 ft, median 8,975 ft, over the 4 wells that filed a depth.

Completions filed
Jul 1986 – Dec 1997
4 of 4 wells
Plug dates filed
Jan 1999
1 of 4 wells; 3 filed none

Last completion to plug: a median of 12.5 years across the 1 well that filed both dates, with the middle half between 12.5 years and 12.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells

42-135375391R9,000 ftDec 1997——
42-135356053R8,950 ftOct 1987——
42-1353535428,950 ftJan 1987—Yes
42-1353530119,000 ftJul 1986Jan 1999Yes

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 2026580106.413.05$6,172
Apr 202665098.932.87$6,430
Mar 202664089.753.15$5,744
Feb 202689063.503.75$5,652
Jan 202632059.138.00$1,892
Dec 202565056.664.41$3,683
Nov 202592058.593.93$5,390
Oct 202564059.383.30$3,800
Sep 202564062.743.08$4,015
Aug 202564063.933.01$4,092
Jul 202564066.743.32$4,271
Jun 202564066.483.13$4,255
May 202529060.553.23$1,756
Apr 202558062.363.54$3,617
Mar 202561067.704.27$4,130
Feb 202595070.884.34$6,734
Jan 2025128074.324.28$9,513
Dec 2024128068.993.12$8,831
Nov 2024160069.052.20$11,048
Oct 202463071.372.28$4,496
Sep 202464069.612.36$4,455
Aug 202462075.632.06$4,689
Jul 20240079.932.15$0
Jun 202464078.082.63$4,997
May 202464078.812.20$5,044
Apr 202464084.451.66$5,405
Mar 20240080.301.55$0
Feb 202432076.091.78$2,435
Jan 20240073.023.30$0
Dec 202361071.262.61$4,347
Nov 202362077.892.81$4,829
Oct 202365085.443.09$5,554
Sep 202361089.042.74$5,431
Aug 202332080.522.67$2,577
Jul 202332074.852.64$2,395
Jun 202395068.962.26$6,551
May 202332070.622.23$2,260
Apr 202394078.122.24$7,343
Mar 20230072.852.39$0
Feb 202397075.112.47$7,286
Jan 202397076.533.39$7,423
Dec 2022130076.415.73$9,933
Nov 202232085.005.65$2,720
Oct 202264087.185.86$5,580
Sep 202263084.888.16$5,347
Aug 202294094.529.13$8,885
Jul 2022640101.587.54$6,501
Jun 20221270115.097.98$14,616
May 2022310109.378.43$3,390
Apr 2022640104.226.84$6,670
Mar 20221280108.885.08$13,937
Feb 202265091.054.86$5,918
Jan 202264081.844.54$5,238
Dec 2021129071.323.90$9,200
Nov 202196077.435.24$7,433
Oct 2021160079.795.71$12,766
Sep 202164069.865.35$4,471
Aug 202164066.024.22$4,225
Jul 202196070.783.98$6,795
Jun 2021128069.493.38$8,895
May 202164063.483.02$4,063
Apr 202195060.362.76$5,734
Mar 2021128061.302.72$7,846
Feb 202132057.805.55$1,850
Jan 2021128050.412.81$6,452
Dec 202064044.642.68$2,857
Nov 2020119038.772.71$4,614
Oct 202096036.972.48$3,549
Sep 202064037.091.99$2,374
Aug 202098039.982.39$3,918
Jul 202098038.371.83$3,760
Jun 2020196034.901.69$6,840
May 202048016.921.81$812
Apr 2020197014.751.80$2,906
Mar 2020148030.341.86$4,490
Feb 2020148049.881.98$7,382
Jan 2020198057.252.09$11,336
Dec 2019200059.012.30$11,802
Nov 2019198055.302.75$10,949
Oct 2019197053.472.42$10,534
Sep 2019145055.052.66$7,982
Aug 2019124053.112.30$6,586
Jul 2019196056.272.46$11,029
Jun 20191474952.782.49$7,881
May 201924617258.482.74$14,857
Apr 201924316162.632.75$15,662
Mar 201919816256.803.06$11,742
Feb 201925016850.852.79$13,182
Jan 201919914346.033.23$9,622
Dec 201819913046.594.19$9,816
Nov 20181499252.934.24$8,276
Oct 201819517461.443.40$12,572
Sep 201819018659.543.11$11,891
Aug 2018132059.403.07$7,841
Jul 201814713465.142.93$9,968
Jun 201814710060.183.08$9,154
May 201824713265.382.90$16,532
Apr 201825317963.842.90$16,671
Mar 201829920861.222.79$18,884
Feb 201825022861.782.77$16,076
Jan 201824828362.874.01$16,726
Dec 201725025457.272.92$15,060
Nov 201734830255.423.12$20,228
Oct 2017018349.292.98$546
Sep 201712117847.523.09$6,299
Aug 201722820445.373.00$10,957
Jul 20171128143.873.09$5,164
Jun 2017018042.493.09$556
May 201723715445.373.26$11,255
Apr 201711220347.933.21$6,020
Mar 201733820046.772.98$16,405
Feb 201711819350.452.95$6,523
Jan 201733921449.413.42$17,482
Dec 2016021548.763.72$800
Nov 201622822042.492.64$10,269
Oct 201621822846.193.09$10,774
Sep 201622219341.553.10$9,823
Aug 201622018841.442.92$9,667
Jul 201622220841.622.92$9,848
Jun 201611015445.352.69$5,402
May 20162266542.521.99$9,739
Apr 20162349936.561.99$8,752
Mar 201611420233.011.79$4,126
Feb 20161026.472.06$26
Jan 20162267927.352.36$6,368
Dec 201511121632.362.00$4,024
Nov 201522620738.792.17$9,215
Oct 201522314043.552.43$10,051
Sep 201533327742.992.76$15,080
Aug 201532626740.162.87$13,859
Jul 201522827448.152.95$11,785
Jun 201522431756.152.88$13,491
May 201535827255.212.96$20,569
Apr 201522530049.822.71$12,021
Mar 201534227742.892.93$15,481
Feb 201534524344.662.98$16,131
Jan 201534629243.433.10$15,932
Dec 201423329954.693.59$13,817
Nov 201423024870.464.25$17,260
Oct 201422914478.303.90$18,492
Sep 201424734786.164.05$22,685
Aug 201433626189.394.04$31,088
Jul 201422935896.564.18$23,609
Jun 201423334898.164.74$24,520
May 201433520694.734.73$32,708
Apr 20142257995.944.81$21,966
Mar 20143567595.895.06$34,516
Feb 20142527697.406.19$25,015
Jan 20143359990.404.86$30,765
Dec 20132197691.824.35$20,440
Nov 20133567488.853.74$31,907
Oct 20132309097.423.78$22,747
Sep 2013344198104.113.72$36,550
Aug 2013111247104.253.52$12,442
Jul 2013209299102.523.72$22,538
Jun 201333532294.403.93$32,891
May 201322617594.834.15$22,158
Apr 201322733493.964.28$22,759
Mar 201311532693.623.91$12,042
Feb 201334432191.233.42$32,481
Jan 201323135891.603.42$22,384
Dec 201234336386.773.42$31,004
Nov 201233036786.953.62$30,024
Oct 201222738989.383.40$21,612
Sep 201222437794.672.92$22,306
Aug 201234439992.662.91$33,035
Jul 201222236685.133.02$20,004
Jun 201211435779.822.52$9,999
May 201232538891.612.49$30,739
Apr 2012228373101.652.00$23,921
Mar 2012229375105.052.22$24,890
Feb 2012230336101.102.57$24,117
Jan 201234536798.092.73$34,844
Dec 201111732396.873.24$12,380
Nov 201122830995.723.31$22,847
Oct 201123131684.983.65$20,783
Sep 201122728983.623.99$20,134
Aug 201122637983.404.15$20,421
Jul 201133440394.144.52$33,263
Jun 201111344992.904.64$12,581
May 201126139298.134.40$27,339
Apr 2011345180105.964.33$37,336
Mar 201122633196.364.06$23,120
Feb 201118634885.644.18$17,384
Jan 201122841286.504.59$21,613
Dec 201034041185.734.35$30,935
Nov 201022736780.843.80$19,744
Oct 201023014278.103.51$18,461
Sep 201022225672.633.98$17,143
Aug 20103053373.684.42$22,618
Jul 201011434372.554.74$9,895
Jun 201033745370.364.91$25,936
May 201033934871.124.24$25,584
Apr 201034131681.694.12$29,159
Mar 201032342978.394.39$27,203
Feb 201033542573.585.44$26,962
Jan 201022644274.365.96$19,441
Dec 200933740571.445.48$26,296
Nov 200922545974.593.75$18,505
Oct 200922648872.544.11$18,400
Sep 200944244565.543.06$30,332
Aug 200921846467.423.22$16,191
Jul 200932532961.133.46$21,007
Jun 200944133766.163.90$30,489
May 200933449854.743.93$20,238
Apr 200933151746.773.59$17,336
Mar 20094444742.144.06$18,901
Feb 200933935132.814.63$12,749
Jan 200946153635.865.37$19,410
Dec 200822852437.105.98$11,591
Nov 200845644255.496.86$28,336
Oct 200833154875.246.92$28,698
Sep 2008566303101.767.88$59,983
Aug 2008225502114.228.48$29,958
Jul 2008342363131.0811.39$48,964
Jun 2008424514131.3313.03$62,383
May 2008222621123.1711.57$34,531
Apr 2008446602110.3110.45$55,492
Mar 2008331588101.909.66$39,411
Feb 200843651792.538.77$44,877
Jan 200845359190.388.21$45,792
Dec 200732958188.337.30$33,303
Nov 200744259391.677.29$44,842
Oct 200743562982.856.92$40,394
Sep 200731849475.846.24$27,202
Aug 200742167169.066.39$33,361
Jul 200733068570.906.39$27,773
Jun 200732562962.007.55$24,898
May 200743274758.747.85$31,237
Apr 200732970759.617.81$25,130
Mar 200744268756.927.30$30,175
Feb 200744466255.108.22$29,903
Jan 200733265550.306.73$21,106
Dec 200633471556.656.92$23,868
Nov 200644140254.207.62$26,964
Oct 200633073854.906.01$22,555
Sep 200644548260.085.04$29,164
Aug 200632854668.717.34$26,544
Jul 200644953469.376.34$34,534
Jun 200633030366.286.38$23,807
May 200644833866.016.42$31,744
Apr 200634146264.397.36$25,358
Mar 200633843856.707.08$22,267
Feb 2006449057.597.75$25,858
Jan 200644839160.598.93$30,637
Dec 200535548254.9413.42$25,970
Nov 200544650554.6910.59$29,739
Oct 200535554258.3413.80$28,188
Sep 200546754561.4512.08$35,280
Aug 200547851761.519.80$34,467
Jul 2005344055.697.84$19,157
Jun 2005472052.337.38$24,700
May 200547271345.226.65$26,086
Apr 200545852549.207.36$26,398
Mar 200535354150.377.15$21,651
Feb 200546148245.226.31$23,889
Jan 200547954743.166.32$24,132
Dec 200445567439.866.75$22,687
Nov 200459954345.286.33$30,560
Oct 200446754049.706.52$26,728
Sep 200446860243.245.28$23,417
Aug 200447760342.375.55$23,558
Jul 200447558238.286.08$21,724
Jun 200457661336.106.43$24,737
May 200443073937.486.49$20,916
Apr 200457364334.475.86$23,518
Mar 200460270134.365.53$24,561
Feb 200450265432.455.51$19,893
Jan 200462764632.036.30$24,152
Dec 200353173230.266.30$20,681
Nov 200365766828.804.60$21,991
Oct 200358472028.174.76$19,878
Sep 200358472626.314.75$18,813
Aug 200358589829.765.13$22,016
Jul 200358584229.415.17$21,559
Jun 200367877228.565.98$23,983
May 20035711,01426.595.97$21,239
Apr 20039581,02526.675.41$31,092
Mar 200385788931.146.10$32,106
Feb 200372082033.487.93$30,605
Jan 200385488730.315.58$30,836
Dec 200285089926.914.85$27,237
Nov 200271780724.664.14$21,020
Oct 20027811,17026.464.23$25,613
Sep 20025241,40027.443.64$19,468
Aug 20026981,30825.963.16$22,259
Jul 20025451,51724.583.06$18,041
Jun 20028221,51723.733.34$24,570
May 20026701,25224.663.58$21,009
Apr 20028211,17223.653.51$23,533
Mar 20028281,19622.003.10$21,927
Feb 20027041,10418.222.38$15,450
Jan 20028771,48917.172.38$18,595
Dec 20011,0241,53016.932.36$20,954
Nov 20017231,39418.072.41$16,418
Oct 20019751,52719.782.53$23,147
Sep 20019321,34124.262.25$25,629
Aug 20015361,33624.873.05$17,409
Jul 20011,0681,28223.933.20$29,656
Jun 20017461,31824.563.82$23,362
May 20011,1481,49025.524.31$35,715
Apr 20017311,08924.685.34$23,851
Mar 20011,1831,43024.545.38$36,719
Feb 20011,1921,23327.755.77$40,189
Jan 20015001,11127.478.40$23,066
Dec 20006261,18426.889.12$27,628
Nov 20001,1952,18732.215.66$50,865
Oct 20001,1952,51131.235.15$50,240
Sep 20001,0412,52631.875.19$46,278
Aug 20001,1822,53929.644.54$46,563
Jul 20001,1902,36928.534.09$43,639
Jun 20001,2212,22929.304.40$45,577
May 20001,2041,61327.263.68$38,756
Apr 20001,2041,83124.513.12$35,215
Mar 20001,4502,16728.422.86$47,406
Feb 20001,3052,28327.622.73$42,269
Jan 20001,1252,10925.272.48$33,660
Dec 19991,1182,54524.282.42$33,313
Nov 19991,5862,68423.192.43$43,312
Oct 19991,4662,86920.982.80$38,801
Sep 19991,4192,93121.752.62$38,539
Aug 19991,2671,83819.262.88$29,688
Jul 19991,4181,77217.892.37$29,572
Jun 19991,5861,67115.942.36$29,228
May 19991,2531,73915.792.32$23,821
Apr 19991,7351,70415.102.21$29,961
Mar 19991,6471,68512.471.84$23,636
Feb 19991,2911,5899.981.82$15,773
Jan 19991,4441,57410.381.90$17,979
Dec 19981,3571,3149.201.77$14,815
Nov 19981,4831,99910.892.19$20,519
Oct 19981,5392,01512.421.97$23,082
Sep 19981,6382,00512.592.08$24,798
Aug 19981,5332,22411.301.91$21,565
Jul 19981,6562,06711.742.24$24,066
Jun 19981,9322,10311.242.24$26,421
May 19982,2222,44112.622.21$33,427
Apr 19982,5632,42813.042.51$39,504
Mar 19982,4632,41012.802.31$37,092
Feb 19982,0742,30313.952.30$34,227
Jan 19982,7682,69614.702.15$46,499
Dec 19971,8862,62116.322.41$37,099
Nov 199749560218.193.09$10,863
Oct 199747848319.253.15$10,723
Sep 199751957017.742.95$10,891
Aug 199746963917.862.55$10,009
Jul 199736762217.582.25$7,849
Jun 199747361517.242.26$9,543
May 199748560018.972.31$10,586
Apr 199759863717.882.08$12,019
Mar 199759459418.951.94$12,408
Feb 199754748520.492.21$12,278
Jan 199747651823.483.54$13,010
Dec 199656743323.32—$13,222
Nov 199646852721.97—$10,282
Oct 199655558123.31—$12,937
Sep 199645554822.22—$10,110
Aug 199655258820.26—$11,184
Jul 199665357019.55—$12,766
Jun 199648950018.73—$9,159
May 199657353219.43—$11,133
Apr 199648258121.51—$10,368
Mar 199659253919.38—$11,473
Feb 199647547616.98—$8,066
Jan 199671750117.07—$12,239
Dec 199538250917.19—$6,567
Nov 199556449916.00—$9,024
Oct 199557068815.43—$8,795
Sep 199567858616.18—$10,970
Aug 199547958215.92—$7,626
Jul 199556259015.24—$8,565
Jun 199560148716.41—$9,862
May 199559349617.56—$10,413
Apr 199569151617.73—$12,251
Mar 199561850116.44—$10,160
Feb 199549044816.58—$8,124
Jan 199559850615.92—$9,520
Dec 199467261415.03—$10,100
Nov 199455751715.90—$8,856
Oct 199480873215.58—$12,589
Sep 199463681715.29—$9,724
Aug 199464086716.13—$10,323
Jul 199466784817.56—$11,713
Jun 199468982317.09—$11,775
May 199458258015.88—$9,242
Apr 199468067614.14—$9,615
Mar 199449771412.46—$6,193
Feb 199472969212.50—$9,113
Jan 199470079712.66—$8,862
Dec 199372080612.33—$8,878
Nov 199371177314.49—$10,302
Oct 199367477015.85—$10,683
Sep 199364677315.03—$9,709
Aug 199373171415.66—$11,447
Jul 199367473715.46—$10,420
Jun 199375483816.79—$12,660
May 199364077917.68—$11,315
Apr 199381382818.05—$14,675
Mar 199375484018.14—$13,678
Feb 199374365217.90—$13,300
Jan 199381673416.93—$13,815

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.

May 2026 — as filed, then multipliedworked
Oil                   58 bbl  × $106.41 =     $6,172
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                   $6,172

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. 08/O/30785 is the state's own key, not one this site invented.