COWDEN RANCH -7-

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 30181District 08Field 21287250Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$15.8 M
Jan 1993 – May 2026
Value, last 12 filed months
$104 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 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.

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA2none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition397,766 bbl$13,921,965
Casinghead gasProduction541,677 Mcf$1,917,506
Total$15,839,471

122,800 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 (8)

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 31.8579, -102.5258. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

31.85762, -102.52573 · 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
62.5%
5 of 8 wells
With a plug date
12.5%
1 of 8 wells
Median depth
9,000 ft
8 wells filed one
Completion to plug
16 months
median over 1 well

What the state filed about each well

On the RRC proration schedule
562.5%
A plug date is filed
112.5%
BothOn the schedule and plugged. Neither fact cancels the other.
112.5%
NeitherNo plug date, and not on the schedule.
337.5%

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, 8 of 8 wells. Median 9,000 ft, with the middle half between 8,954 and 9,038 ft; the shallowest is 8,929 ft and the deepest 9,200 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, 8 of 8 wells, Apr 1986 – Oct 2025. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Apr 1986 – Oct 2025
8 of 8 wells
Plug dates filed
Oct 1991
1 of 8 wells; 7 filed none

Last completion to plug: a median of 16 months across the 1 well that filed both dates, with the middle half between 16 months and 16 months. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

8 wells

42-1353503219,200 ftOct 2025Yes
42-1350264238,929 ftJun 1990Oct 1991Yes
42-1353590589,000 ftSep 1988
42-1353582578,955 ftMar 1988
42-1353564268,950 ftDec 1987
42-1353552059,000 ftJun 1987Yes
42-1353537249,000 ftFeb 1987Yes
42-1353526629,150 ftApr 1986Yes

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 20261090106.413.05$11,599
Apr 2026122098.932.87$12,069
Mar 2026121089.753.15$10,860
Feb 2026167063.503.75$10,605
Jan 202661059.138.00$3,607
Dec 2025123056.664.41$6,969
Nov 2025174058.593.93$10,195
Oct 2025121059.383.30$7,185
Sep 2025121062.743.08$7,592
Aug 2025121063.933.01$7,736
Jul 2025121066.743.32$8,076
Jun 2025120066.483.13$7,978
May 202554060.553.23$3,270
Apr 2025109062.363.54$6,797
Mar 2025115067.704.27$7,786
Feb 2025178070.884.34$12,617
Jan 2025240074.324.28$17,837
Dec 2024242068.993.12$16,696
Nov 2024301069.052.20$20,784
Oct 2024119071.372.28$8,493
Sep 2024121069.612.36$8,423
Aug 2024117075.632.06$8,849
Jul 20240079.932.15$0
Jun 2024120078.082.63$9,370
May 2024120078.812.20$9,457
Apr 2024120084.451.66$10,134
Mar 20240080.301.55$0
Feb 202461076.091.78$4,641
Jan 20240073.023.30$0
Dec 2023115071.262.61$8,195
Nov 2023117077.892.81$9,113
Oct 2023122085.443.09$10,424
Sep 2023115089.042.74$10,240
Aug 202360080.522.67$4,831
Jul 202361074.852.64$4,566
Jun 2023179068.962.26$12,344
May 202360070.622.23$4,237
Apr 2023177078.122.24$13,827
Mar 20230072.852.39$0
Feb 2023184075.112.47$13,820
Jan 2023183076.533.39$14,005
Dec 2022244076.415.73$18,644
Nov 202260085.005.65$5,100
Oct 2022121087.185.86$10,549
Sep 2022119084.888.16$10,101
Aug 2022182094.529.13$17,203
Jul 20221210101.587.54$12,291
Jun 20222380115.097.98$27,391
May 2022590109.378.43$6,453
Apr 20221200104.226.84$12,506
Mar 20222410108.885.08$26,240
Feb 2022131091.054.86$11,928
Jan 2022134081.844.54$10,967
Dec 2021243071.323.90$17,331
Nov 2021181077.435.24$14,015
Oct 2021301079.795.71$24,017
Sep 2021120069.865.35$8,383
Aug 2021121066.024.22$7,988
Jul 2021203070.783.98$14,368
Jun 2021247069.493.38$17,164
May 2021120063.483.02$7,618
Apr 2021178060.362.76$10,744
Mar 2021243061.302.72$14,896
Feb 202161057.805.55$3,526
Jan 2021242050.412.81$12,199
Dec 2020121044.642.68$5,401
Nov 2020225038.772.71$8,723
Oct 2020181036.972.48$6,692
Sep 2020120037.091.99$4,451
Aug 2020151039.982.39$6,037
Jul 2020151038.371.83$5,794
Jun 2020303034.901.69$10,575
May 202075016.921.81$1,269
Apr 2020304014.751.80$4,484
Mar 2020228030.341.86$6,918
Feb 2020232049.881.98$11,572
Jan 2020310057.252.09$17,748
Dec 2019313059.012.30$18,470
Nov 2019323055.302.75$17,862
Oct 2019307053.472.42$16,415
Sep 2019226055.052.66$12,441
Aug 2019302053.112.30$16,039
Jul 2019302056.272.46$16,994
Jun 201922713952.782.49$12,327
May 201938548958.482.74$23,855
Apr 201937845862.632.75$24,934
Mar 201930946056.803.06$18,960
Feb 201938641550.852.79$20,787
Jan 201930740746.033.23$15,445
Dec 201832736946.594.19$16,779
Nov 201823526152.934.24$13,544
Oct 201832049461.443.40$21,339
Sep 201830546059.543.11$19,589
Aug 2018201059.403.07$11,939
Jul 201822838365.142.93$15,975
Jun 201823928660.183.08$15,263
May 201839037565.382.90$26,586
Apr 201840851063.842.90$27,526
Mar 201847559261.222.79$30,729
Feb 201839965061.782.77$26,448
Jan 201839269862.874.01$27,444
Dec 201738672457.272.92$24,221
Nov 201753874455.423.12$32,136
Oct 201739152149.292.98$20,827
Sep 201747050547.523.09$23,893
Aug 201735358245.373.00$17,764
Jul 201734423143.873.09$15,804
Jun 201734651242.493.09$16,282
May 201724643945.373.26$12,594
Apr 201735357747.933.21$18,772
Mar 201748157046.772.98$24,197
Feb 201724155050.452.95$13,782
Jan 201757560849.413.42$30,489
Dec 201612261148.763.72$8,223
Nov 201634662542.492.64$16,354
Oct 201635065046.193.09$18,175
Sep 201634155041.553.10$15,874
Aug 201634953441.442.92$16,024
Jul 201634659341.622.92$16,135
Jun 201634446445.352.69$16,847
May 201636018642.521.99$15,678
Apr 201647828336.561.99$18,039
Mar 201634857633.011.79$12,521
Feb 2016465026.472.06$12,309
Jan 201634522627.352.36$9,970
Dec 201523361432.362.00$8,769
Nov 201523459038.792.17$10,356
Oct 201545639943.552.43$20,827
Sep 201569679042.992.76$32,100
Aug 201557576040.162.87$25,275
Jul 201557278148.152.95$29,842
Jun 201534390256.152.88$21,860
May 201547577455.212.96$28,512
Apr 20154791,19749.822.71$27,104
Mar 201547878742.892.93$22,811
Feb 201535369344.662.98$17,827
Jan 201547083243.433.10$22,992
Dec 201424085254.693.59$16,185
Nov 201458270570.464.25$44,005
Oct 201458440978.303.90$47,323
Sep 201460998886.164.05$56,468
Aug 201457674289.394.04$54,483
Jul 20144661,01896.564.18$49,252
Jun 201459598998.164.74$63,090
May 201459358594.734.73$58,940
Apr 201459322695.944.81$57,979
Mar 201460421295.895.06$58,990
Feb 201438521697.406.19$38,836
Jan 201456728190.404.86$52,623
Dec 201359921591.824.35$55,936
Nov 201323921288.853.74$22,028
Oct 201358725597.423.78$58,149
Sep 2013357564104.113.72$39,264
Aug 2013356704104.253.52$39,593
Jul 2013570850102.523.72$61,596
Jun 201346691694.403.93$47,593
May 201346949994.834.15$46,546
Apr 201337495093.964.28$39,210
Mar 201349992993.623.91$50,351
Feb 201338191291.233.42$37,878
Jan 20135001,01991.603.42$49,285
Dec 20123781,03486.773.42$36,336
Nov 20123851,04486.953.62$37,260
Oct 20125031,10789.383.40$48,722
Sep 20125981,07494.672.92$59,747
Aug 20124961,13492.662.91$49,257
Jul 20125091,04385.133.02$46,482
Jun 20126271,01579.822.52$52,604
May 20124991,10491.612.49$48,461
Apr 20127491,062101.652.00$78,256
Mar 20125081,067105.052.22$55,736
Feb 2012632957101.102.57$66,355
Jan 20127431,04598.092.73$75,738
Dec 201151291996.873.24$52,575
Nov 201163687995.723.31$63,789
Oct 201162389984.983.65$56,223
Sep 201160882483.623.99$54,125
Aug 20112531,07883.404.15$25,573
Jul 20117461,14894.144.52$75,414
Jun 20116151,27892.904.64$63,063
May 20119081,11798.134.40$94,022
Apr 2011751513105.964.33$81,799
Mar 201199294396.364.06$99,415
Feb 201147898985.644.18$45,070
Jan 20117311,17386.504.59$68,614
Dec 20108771,17085.734.35$80,272
Nov 20107481,04480.843.80$64,431
Oct 201086940378.103.51$69,283
Sep 201072672872.633.98$55,626
Aug 20108669373.684.42$64,218
Jul 201074997672.554.74$58,963
Jun 20107361,11770.364.91$57,270
May 201081199171.124.24$61,875
Apr 201073389881.694.12$63,581
Mar 20108731,22078.394.39$73,789
Feb 20106221,21173.585.44$52,357
Jan 20107411,25874.365.96$62,604
Dec 20094331,15271.445.48$37,251
Nov 20096871,30574.593.75$56,139
Oct 20097871,38872.544.11$62,794
Sep 20098051,26765.543.06$56,643
Aug 20097931,32167.423.22$57,716
Jul 200980193661.133.46$52,208
Jun 200991495966.163.90$64,206
May 20097891,41754.743.93$48,753
Apr 20098931,47246.773.59$47,046
Mar 200992181042.144.06$42,099
Feb 200970399832.814.63$27,689
Jan 20099631,52735.865.37$42,735
Dec 20088271,49237.105.98$39,600
Nov 20088371,25755.496.86$55,069
Oct 20089361,55975.246.92$81,216
Sep 2008793862101.767.88$87,486
Aug 20088111,429114.228.48$104,755
Jul 20085871,033131.0811.39$88,709
Jun 20087811,463131.3313.03$121,635
May 20089091,768123.1711.57$132,425
Apr 20088881,713110.3110.45$115,864
Mar 20081,0251,673101.909.66$120,615
Feb 20088011,47192.538.77$87,018
Jan 20087771,68190.388.21$84,019
Dec 20078611,65488.337.30$88,130
Nov 20077921,68891.677.29$84,911
Oct 20078831,79082.856.92$85,547
Sep 20075711,40775.846.24$52,090
Aug 20079821,90969.066.39$80,012
Jul 20077951,94870.906.39$68,809
Jun 20078221,88662.007.55$65,200
May 20078521,94258.747.85$65,284
Apr 20079741,83859.617.81$72,406
Mar 20076391,78656.927.30$49,413
Feb 20078581,72155.108.22$61,416
Jan 20078851,70450.306.73$55,978
Dec 20066571,85856.656.92$50,074
Nov 20066481,04554.207.62$43,082
Oct 20069341,91854.906.01$62,811
Sep 20068311,86760.085.04$59,331
Aug 20069462,11768.717.34$80,538
Jul 20061,0752,07069.376.34$87,702
Jun 20068051,17366.286.38$60,844
May 200663491166.016.42$47,704
Apr 20068201,79064.397.36$65,975
Mar 20066821,69656.707.08$50,682
Feb 20067999857.597.75$46,774
Jan 20066851,51460.598.93$55,029
Dec 20059221,86954.9413.42$75,728
Nov 20051,0161,95754.6910.59$76,287
Oct 20056592,09958.3413.80$67,403
Sep 20051,0022,11061.4512.08$87,060
Aug 20051,0902,00261.519.80$86,659
Jul 2005777055.697.84$43,271
Jun 2005933052.337.38$48,824
May 20051,0372,20545.226.65$61,559
Apr 20059332,36149.207.36$63,282
Mar 20051,0462,43650.377.15$70,116
Feb 20058982,17045.226.31$54,304
Jan 20051,0662,46143.166.32$61,567
Dec 20047352,37439.866.75$45,324
Nov 20041,0872,44345.286.33$64,685
Oct 20041,0782,43149.706.52$69,415
Sep 20041,0502,71143.245.28$59,727
Aug 20049432,71242.375.55$55,008
Jul 20049252,61938.286.08$51,343
Jun 20041,0482,75736.106.43$55,569
May 20041,1792,88937.486.49$62,952
Apr 20041,0622,51334.475.86$51,329
Mar 20041,0612,74134.365.53$51,614
Feb 20041,2252,55732.455.51$53,839
Jan 20047692,52532.036.30$40,538
Dec 20031,0832,73730.266.30$50,019
Nov 20031,1032,61228.804.60$43,769
Oct 20031,0712,81528.174.76$43,568
Sep 20031,0592,84026.314.75$41,350
Aug 20031,1542,36829.765.13$46,490
Jul 20039612,21929.415.17$39,737
Jun 20031,1592,73828.565.98$49,482
May 20031,2693,16426.595.97$52,640
Apr 20031,2503,19726.675.41$50,625
Mar 20031,3242,77231.146.10$58,128
Feb 20031,1782,55833.487.93$59,714
Jan 20031,1662,87430.315.58$51,384
Dec 20021,5523,09326.914.85$56,777
Nov 20021,1572,77524.664.14$40,012
Oct 20021,1391,84526.464.23$37,941
Sep 20021,3832,20827.443.64$45,976
Aug 20021,0252,06225.963.16$33,134
Jul 20021,3992,39324.583.06$41,714
Jun 20021,2472,39323.733.34$37,580
May 20021,2842,45724.663.58$40,469
Apr 20021,0301,84823.653.51$30,850
Mar 20021,3752,24922.003.10$37,228
Feb 20021,1041,96318.222.38$24,778
Jan 20021,4792,28117.172.38$30,813
Dec 20011,3442,27116.932.36$28,123
Nov 20011,5232,19118.072.41$32,791
Oct 20011,5812,34119.782.53$37,192
Sep 20011,5762,49024.262.25$43,840
Aug 20011,4442,96524.873.05$44,965
Jul 20011,5223,09523.933.20$46,316
Jun 20011,2672,79524.563.82$41,806
May 20011,5173,14925.524.31$52,278
Apr 20011,1522,12024.685.34$39,742
Mar 20011,5462,82224.545.38$53,111
Feb 20011,1602,21327.755.77$44,953
Jan 20011,4452,36027.478.40$59,515
Dec 20001,0281,85026.889.12$44,509
Nov 20001,5622,12932.215.66$62,358
Oct 20001,6522,44631.235.15$64,178
Sep 20001,8222,52631.875.19$71,168
Aug 20001,7182,74729.644.54$63,395
Jul 20001,7142,69328.534.09$59,914
Jun 20001,6602,66229.304.40$60,343
May 20001,4811,97127.263.68$47,625
Apr 20001,7822,17224.513.12$50,445
Mar 20001,9112,46128.422.86$61,348
Feb 20001,8912,44327.622.73$58,890
Jan 20001,9502,42825.272.48$55,299
Dec 19991,9602,32024.282.42$53,212
Nov 19992,0252,52623.192.43$53,108
Oct 19992,4843,06620.982.80$60,710
Sep 19991,9372,35021.752.62$48,284
Aug 19991,6752,77919.262.88$40,252
Jul 19991,7262,67917.892.37$37,234
Jun 19991,6442,52615.942.36$32,172
May 19991,7792,62815.792.32$34,190
Apr 19991,8042,57715.102.21$32,931
Mar 19991,9352,54712.471.84$28,812
Feb 19991,5522,4029.981.82$19,855
Jan 19991,6472,37910.381.90$21,616
Dec 19981,4881,9879.201.77$17,213
Nov 19981,9622,79910.892.19$27,484
Oct 19982,3343,06512.421.97$35,024
Sep 19982,3703,02812.592.08$36,144
Aug 19982,0432,91111.301.91$28,638
Jul 19982,0282,98111.742.24$30,478
Jun 19982,1152,26511.242.24$28,840
May 19982,5502,67512.622.21$38,083
Apr 19981,9432,51913.042.51$31,648
Mar 19982,5332,63212.802.31$38,501
Feb 19982,2212,33213.952.30$36,345
Jan 19982,8462,82414.702.15$47,921
Dec 19972,5912,71216.322.41$48,824
Nov 19972,3712,79918.193.09$51,773
Oct 19972,2662,32219.253.15$50,934
Sep 19972,1322,68417.742.95$45,753
Aug 19972,2743,00717.862.55$48,296
Jul 19972,5092,90217.582.25$50,629
Jun 19972,3312,97317.242.26$46,897
May 19972,4352,83318.972.31$52,732
Apr 19972,5212,70717.882.08$50,714
Mar 19972,5292,81518.951.94$53,383
Feb 19972,6492,39620.492.21$59,563
Jan 19972,3902,67523.483.54$65,586
Dec 19962,4072,19223.32$56,131
Nov 19962,9562,79221.97$64,943
Oct 19962,4793,09923.31$57,785
Sep 19962,7453,12422.22$60,994
Aug 19962,8493,07020.26$57,721
Jul 19963,1143,10219.55$60,879
Jun 19962,6352,86618.73$49,354
May 19963,0393,12919.43$59,048
Apr 19962,9703,08521.51$63,885
Mar 19963,1302,93319.38$60,659
Feb 19962,7332,74516.98$46,406
Jan 19963,0832,85917.07$52,627
Dec 19952,6762,77217.19$46,000
Nov 19953,0072,96716.00$48,112
Oct 19953,3083,53615.43$51,042
Sep 19953,3063,19416.18$53,491
Aug 19953,3353,40215.92$53,093
Jul 19953,3333,29415.24$50,795
Jun 19953,0212,77816.41$49,575
May 19953,9263,49917.56$68,941
Apr 19953,7333,32617.73$66,186
Mar 19953,7963,02816.44$62,406
Feb 19953,4493,02616.58$57,184
Jan 19954,4163,52115.92$70,303
Dec 19944,2253,18815.03$63,502
Nov 19943,0822,68115.90$49,004
Oct 19942,1391,76515.58$33,326
Sep 19941,6351,96915.29$24,999
Aug 19941,6722,06516.13$26,969
Jul 19941,4802,01817.56$25,989
Jun 19941,5642,02117.09$26,729
May 19941,5951,42415.88$25,329
Apr 19941,5211,79514.14$21,507
Mar 19941,6821,89312.46$20,958
Feb 19941,7061,78812.50$21,325
Jan 19941,8962,05812.66$24,003
Dec 19932,0572,20712.33$25,363
Nov 19932,0582,11714.49$29,820
Oct 19931,9382,20615.85$30,717
Sep 19931,8542,21415.03$27,866
Aug 19931,9602,05015.66$30,694
Jul 19931,8262,11415.46$28,230
Jun 19931,7822,04516.79$29,920
May 19931,8141,90117.68$32,072
Apr 19931,9561,93118.05$35,306
Mar 19931,8071,96018.14$32,779
Feb 19931,8831,90617.90$33,706
Jan 19932,0682,14516.93$35,011

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                  109 bbl  × $106.41 =    $11,599
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $11,599

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/30181 is the state's own key, not one this site invented.