COOK-THROCKMORTON

Operated by OS&S OPERATING INC. (P-5 627119) in the WICHITA COUNTY REGULAR field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 5550District 09Field 97155001OilCasinghead gasSaveExport
Value, all time
$686 k
Jan 1993 – May 2026
Value, last 12 filed months
$7 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 1,994 leases and 19,278 wells, and the rule below applies to all of them.

Discovered
1910-12-31
as the register files it
Field class
Oil
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
OilDisposition20,531 bbl$685,234
Casinghead gasProduction144 Mcf$368
Total$685,602

48 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 33.9689, -98.8771. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

33.96896, -98.87744 · 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
62.5%
5 of 8 wells
Median depth
1,916 ft
8 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
562.5%
A plug date is filed
562.5%
BothOn the schedule and plugged. Neither fact cancels the other.
562.5%
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 1,916 ft, with the middle half between 1,793 and 2,001 ft; the shallowest is 1,784 ft and the deepest 2,100 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, 3 of 8 wells, Jun 1955 – Jun 1966. 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 1955 – Jun 1966
3 of 8 wells; 5 filed none
Plug dates filed
Aug 1973 – Jan 1977
5 of 8 wells; 3 filed none

8 wells

42-4850676291,795 ftDec 1976Yes
42-48510461102,000 ftJan 1977Yes
42-48510471112,004 ftJan 1977Yes
42-48520541151,857 ftAug 1973Yes
42-48520548141,975 ftDec 1976Yes
42-48520543122,100 ftJun 1966
42-4858480371,784 ftMar 1961
42-4858480241,788 ftJun 1955

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 202654063.503.75$3,429
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 202563058.593.93$3,691
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 202559060.553.23$3,572
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 202455071.372.28$3,925
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 202456078.082.63$4,372
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 202357071.262.61$4,062
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 202355074.852.64$4,117
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 202355072.852.39$4,007
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
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 202162069.865.35$4,331
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 202156061.302.72$3,433
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 202054036.972.48$1,996
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 202053016.921.81$897
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 202056057.252.09$3,206
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 201953053.112.30$2,815
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 201958058.482.74$3,392
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 201958050.852.79$2,949
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 201856052.934.24$2,964
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 201855060.183.08$3,310
May 20180065.382.90$0
Apr 201857063.842.90$3,639
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 201860062.874.01$3,772
Dec 20170057.272.92$0
Nov 201757055.423.12$3,159
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 201756045.373.00$2,541
Jul 20170043.873.09$0
Jun 201756042.493.09$2,379
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 201757046.772.98$2,666
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 201656048.763.72$2,731
Nov 20160042.492.64$0
Oct 201655046.193.09$2,540
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 201656041.622.92$2,331
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 201656036.561.99$2,047
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 201654027.352.36$1,477
Dec 20150032.362.00$0
Nov 201555038.792.17$2,133
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 201548040.162.87$1,928
Jul 20150048.152.95$0
Jun 201556056.152.88$3,144
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 201558042.892.93$2,488
Feb 20150044.662.98$0
Jan 201555043.433.10$2,389
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 201458078.303.90$4,541
Sep 20140086.164.05$0
Aug 201456089.394.04$5,006
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 201457094.734.73$5,400
Apr 20140095.944.81$0
Mar 201455095.895.06$5,274
Feb 20140097.406.19$0
Jan 201458090.404.86$5,243
Dec 20130091.824.35$0
Nov 201356088.853.74$4,976
Oct 20130097.423.78$0
Sep 2013560104.113.72$5,830
Aug 201300104.253.52$0
Jul 2013560102.523.72$5,741
Jun 20130094.403.93$0
May 201357094.834.15$5,405
Apr 20130093.964.28$0
Mar 201357093.623.91$5,336
Feb 20130091.233.42$0
Jan 201358091.603.42$5,313
Dec 20120086.773.42$0
Nov 201257086.953.62$4,956
Oct 20120089.383.40$0
Sep 201255094.672.92$5,207
Aug 20120092.662.91$0
Jul 201256085.133.02$4,767
Jun 201256079.822.52$4,470
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 2012530105.052.22$5,568
Feb 201200101.102.57$0
Jan 201258098.092.73$5,689
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 201157084.983.65$4,844
Sep 20110083.623.99$0
Aug 201154083.404.15$4,504
Jul 201156094.144.52$5,272
Jun 20110092.904.64$0
May 201156098.134.40$5,495
Apr 2011570105.964.33$6,040
Mar 20110096.364.06$0
Feb 2011112085.644.18$9,592
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 201048080.843.80$3,880
Oct 201058078.103.51$4,530
Sep 20100072.633.98$0
Aug 201055073.684.42$4,052
Jul 20100072.554.74$0
Jun 201057070.364.91$4,011
May 20100071.124.24$0
Apr 201056081.694.12$4,575
Mar 20100078.394.39$0
Feb 201057073.585.44$4,194
Jan 201058074.365.96$4,313
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 200956072.544.11$4,062
Sep 20090065.543.06$0
Aug 200960067.423.22$4,045
Jul 20090061.133.46$0
Jun 200961066.163.90$4,036
May 20090054.743.93$0
Apr 200961046.773.59$2,853
Mar 20090042.144.06$0
Feb 200958032.814.63$1,903
Jan 20090035.865.37$0
Dec 200864037.105.98$2,374
Nov 20080055.496.86$0
Oct 200854075.246.92$4,063
Sep 2008630101.767.88$6,411
Aug 200800114.228.48$0
Jul 2008600131.0811.39$7,865
Jun 200800131.3313.03$0
May 2008590123.1711.57$7,267
Apr 200800110.3110.45$0
Mar 2008580101.909.66$5,910
Feb 200861092.538.77$5,644
Jan 20080090.388.21$0
Dec 200759088.337.30$5,211
Nov 200763091.677.29$5,775
Oct 20070082.856.92$0
Sep 200763075.846.24$4,778
Aug 20070069.066.39$0
Jul 200755070.906.39$3,900
Jun 200758062.007.55$3,596
May 20070058.747.85$0
Apr 200757059.617.81$3,398
Mar 200757056.927.30$3,244
Feb 20070055.108.22$0
Jan 200761050.306.73$3,068
Dec 200660056.656.92$3,399
Nov 200665054.207.62$3,523
Oct 20060054.906.01$0
Sep 200645060.085.04$2,704
Aug 200645068.717.34$3,092
Jul 200650069.376.34$3,469
Jun 200653066.286.38$3,513
May 200668066.016.42$4,489
Apr 200669064.397.36$4,443
Mar 20060056.707.08$0
Feb 200670057.597.75$4,031
Jan 20060060.598.93$0
Dec 200540054.9413.42$2,198
Nov 200566054.6910.59$3,610
Oct 20050058.3413.80$0
Sep 200548061.4512.08$2,950
Aug 200546061.519.80$2,829
Jul 200546055.697.84$2,562
Jun 200548052.337.38$2,512
May 200544045.226.65$1,990
Apr 200547049.207.36$2,312
Mar 200546050.377.15$2,317
Feb 200548045.226.31$2,171
Jan 200553043.166.32$2,287
Dec 200444139.866.75$1,761
Nov 200445145.286.33$2,044
Oct 200447149.706.52$2,342
Sep 200446143.245.28$1,994
Aug 200444142.375.55$1,870
Jul 200474138.286.08$2,839
Jun 20040136.106.43$6
May 200439137.486.49$1,468
Apr 200442134.475.86$1,454
Mar 200442134.365.53$1,449
Feb 200447132.455.51$1,531
Jan 200445132.036.30$1,448
Dec 200342130.266.30$1,277
Nov 200345128.804.60$1,301
Oct 200346128.174.76$1,301
Sep 200340126.314.75$1,057
Aug 200339129.765.13$1,166
Jul 200339129.415.17$1,152
Jun 200339128.565.98$1,120
May 200346126.595.97$1,229
Apr 200346126.675.41$1,232
Mar 200341131.146.10$1,283
Feb 200345133.487.93$1,515
Jan 200355130.315.58$1,673
Dec 200255126.914.85$1,485
Nov 200255124.664.14$1,360
Oct 200256126.464.23$1,486
Sep 200256127.443.64$1,540
Aug 200258125.963.16$1,509
Jul 200264124.583.06$1,576
Jun 200272123.733.34$1,712
May 20020124.663.58$4
Apr 200247123.653.51$1,115
Mar 200251122.003.10$1,125
Feb 200255118.222.38$1,004
Jan 200277117.172.38$1,324
Dec 20010116.932.36$2
Nov 20010118.072.41$2
Oct 200175119.782.53$1,486
Sep 20010124.262.25$2
Aug 200169124.873.05$1,719
Jul 2001147123.933.20$3,521
Jun 20010124.563.82$4
May 200174125.524.31$1,893
Apr 20010124.685.34$5
Mar 200176124.545.38$1,870
Feb 20010127.755.77$6
Jan 200150127.478.40$1,382
Dec 200076126.889.12$2,052
Nov 20000132.215.66$6
Oct 200050131.235.15$1,567
Sep 20000131.875.19$5
Aug 200059129.644.54$1,753
Jul 200068128.534.09$1,944
Jun 200063129.304.40$1,850
May 2000131127.263.68$3,575
Apr 200067124.513.12$1,645
Mar 200071128.422.86$2,021
Feb 2000125127.622.73$3,455
Jan 2000133125.272.48$3,363
Dec 199971124.282.42$1,726
Nov 1999117123.192.43$2,716
Oct 1999121120.982.80$2,541
Sep 1999116121.752.62$2,526
Aug 1999131119.262.88$2,526
Jul 1999133117.892.37$2,382
Jun 1999133115.942.36$2,122
May 1999135115.792.32$2,134
Apr 1999138115.102.21$2,086
Mar 1999149112.471.84$1,860
Feb 199915019.981.82$1,499
Jan 1999146110.381.90$1,517
Dec 19987719.201.77$710
Nov 1998132110.892.19$1,440
Oct 1998133112.421.97$1,654
Sep 1998135112.592.08$1,702
Aug 1998134111.301.91$1,516
Jul 1998207111.742.24$2,432
Jun 199873111.242.24$823
May 1998185112.622.21$2,337
Apr 1998131113.042.51$1,711
Mar 1998140112.802.31$1,794
Feb 1998151113.952.30$2,109
Jan 1998191114.702.15$2,810
Dec 1997152116.322.41$2,483
Nov 1997195118.193.09$3,550
Oct 1997129119.253.15$2,486
Sep 1997202117.742.95$3,586
Aug 1997140117.862.55$2,503
Jul 1997196117.582.25$3,448
Jun 1997139117.242.26$2,399
May 1997193118.972.31$3,664
Apr 1997208117.882.08$3,721
Mar 1997132118.951.94$2,503
Feb 1997157120.492.21$3,219
Jan 1997196123.483.54$4,606
Dec 1996144123.32$3,358
Nov 1996195121.97$4,284
Oct 1996138123.31$3,217
Sep 1996195122.22$4,333
Aug 1996200120.26$4,052
Jul 1996134119.55$2,620
Jun 1996204118.73$3,821
May 199664119.43$1,244
Apr 1996136121.51$2,925
Mar 1996202119.38$3,915
Feb 1996135116.98$2,292
Jan 1996143117.07$2,441
Dec 199568117.19$1,169
Nov 1995153116.00$2,448
Oct 1995152115.43$2,345
Sep 199576116.18$1,230
Aug 1995150115.92$2,388
Jul 1995152115.24$2,316
Jun 1995150116.41$2,462
May 1995150117.56$2,634
Apr 199577117.73$1,365
Mar 1995152116.44$2,499
Feb 199575116.58$1,244
Jan 1995220115.92$3,502
Dec 199475115.03$1,127
Nov 199476115.90$1,208
Oct 1994150115.58$2,337
Sep 1994193115.29$2,951
Aug 199474116.13$1,194
Jul 199477117.56$1,352
Jun 1994150117.09$2,564
May 199474115.88$1,175
Apr 1994144114.14$2,036
Mar 1994149112.46$1,857
Feb 199473112.50$913
Jan 1994151112.66$1,912
Dec 1993132112.33$1,628
Nov 199371114.49$1,029
Oct 1993146115.85$2,314
Sep 1993141115.03$2,119
Aug 199372115.66$1,128
Jul 1993149115.46$2,304
Jun 1993141116.79$2,367
May 199361117.68$1,078
Apr 1993150118.05$2,708
Mar 1993147118.14$2,667
Feb 1993216117.90$3,866
Jan 199376116.93$1,287

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.

Feb 2026 — as filed, then multipliedworked
Oil                   54 bbl  × $ 63.50 =     $3,429
Casinghead gas         0 Mcf  × $  3.75 =         $0

────────────────────────────────────────────────────
Month total                                   $3,429

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/5550 is the state's own key, not one this site invented.