COBB, T. B.

Operated by SANCHEZ PRODUCTION, LLC (P-5 747019) in the PANHANDLE GRAY COUNTY FIELD field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 1539District 10Field 68873001NGPA filingOilCasinghead gasSaveExport
Value, all time
$3.4 M
Jan 1993 – May 2026
Value, last 12 filed months
$40 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 837 leases and 6,360 wells, and the rule below applies to all of them.

Discovered
1921-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
467 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 1989-05-01.

The Commission's schedule remark for this field reads: UNTIL THE FLUID MIGRATION FROM SUCH STRATA IS ELIMINATED.

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
NGPA27none

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
OilDisposition62,430 bbl$3,008,364
Casinghead gasProduction111,036 Mcf$440,604
Total$3,448,968

24,874 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 (41)

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 35.5673, -101.0538. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

35.56874, -101.05209 · 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
48.8%
20 of 41 wells
With a plug date
48.8%
20 of 41 wells
Median depth
3,332 ft
40 wells filed one
Completion to plug
24.3 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
2048.8%
A plug date is filed
2048.8%
BothOn the schedule and plugged. Neither fact cancels the other.
2048.8%
NeitherNo plug date, and not on the schedule.
2151.2%

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, 40 of 41 wells. Median 3,332 ft, with the middle half between 3,328 and 3,373 ft; the shallowest is 3,312 ft and the deepest 3,700 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, 2 of 41 wells, Aug 1968 – Oct 1968. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Aug 1968 – Oct 1968
2 of 41 wells; 39 filed none
Plug dates filed
Sep 1979 – Oct 2010
20 of 41 wells; 21 filed none

Last completion to plug: a median of 24.3 years across the 2 wells that filed both dates, with the middle half between 24.0 years and 24.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

41 wells

42-1790014841W3,450 ftMar 1998Yes
42-17900783353,380 ftDec 2003Yes
42-179067201G3,346 ftApr 1987Yes
42-1792006138W3,450 ftMay 1992Yes
42-1792006239W3,450 ftOct 2010Yes
42-1792006540W3,450 ftMar 1991Yes
42-1798387323,332 ftJun 1980Yes
42-1798387433,327 ftDec 2003Yes
42-1798387873,312 ftAug 1980Yes
42-1798387983,330 ftJun 1980Yes
42-17983883123,330 ftMay 1980Yes
42-17983884133,330 ftMay 1980Yes
42-1798388514 O3,380 ftJul 1980Yes
42-17983886153,328 ftJul 1980Yes
42-17983887163,343 ftSep 1979Yes
42-17983888173,380 ftMay 1980Yes
42-17983889183,335 ftJul 1980Yes
42-17983894243,330 ftDec 2003Yes
42-1790755332G3,315 ft
42-1790755430G
42-1790755528G3,320 ft
42-1790755620G3,328 ft
42-17930755423,500 ft
42-1798387543,314 ft
42-1798387653,331 ft
42-1798387763,328 ft
42-1798388093,326 ft
42-17983881103,327 ft
42-17983882113,329 ft
42-17983891213,337 ft
42-17983892223,328 ft
42-17983893233,325 ft
42-17983895253,340 ft
42-17983896263,340 ft
42-17983897273,340 ft
42-17983899293,340 ft
42-17983901313,319 ft
42-17983903333,316 ft
42-17983904343,370 ft
42-1792006337W3,450 ftOct 1968May 1993Yes
42-1792006436W3,700 ftAug 1968Jun 1992Yes

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 2025157056.664.41$8,896
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 2025147063.933.01$9,398
Jul 2025174066.743.32$11,613
Jun 2025154066.483.13$10,238
May 20250060.553.23$0
Apr 2025176062.363.54$10,975
Mar 2025175067.704.27$11,848
Feb 20250070.884.34$0
Jan 2025175074.324.28$13,006
Dec 2024169068.993.12$11,659
Nov 2024173069.052.20$11,946
Oct 20240071.372.28$0
Sep 2024150069.612.36$10,442
Aug 2024159075.632.06$12,025
Jul 2024163079.932.15$13,029
Jun 2024169078.082.63$13,196
May 2024152078.812.20$11,979
Apr 20240084.451.66$0
Mar 2024178080.301.55$14,293
Feb 20240076.091.78$0
Jan 2024181073.023.30$13,217
Dec 2023162071.262.61$11,544
Nov 2023167077.892.81$13,008
Oct 2023165085.443.09$14,098
Sep 2023147089.042.74$13,089
Aug 2023152080.522.67$12,239
Jul 2023164074.852.64$12,275
Jun 2023156068.962.26$10,758
May 2023177070.622.23$12,500
Apr 2023163078.122.24$12,734
Mar 2023163072.852.39$11,875
Feb 2023165075.112.47$12,393
Jan 2023155076.533.39$11,862
Dec 20220076.415.73$0
Nov 2022179085.005.65$15,215
Oct 202243087.185.86$3,749
Sep 2022156084.888.16$13,241
Aug 2022154094.529.13$14,556
Jul 20221590101.587.54$16,151
Jun 20221740115.097.98$20,026
May 20221660109.378.43$18,155
Apr 20221670104.226.84$17,405
Mar 20221640108.885.08$17,856
Feb 2022175091.054.86$15,934
Jan 2022171081.844.54$13,995
Dec 2021183071.323.90$13,052
Nov 2021173077.435.24$13,395
Oct 2021170079.795.71$13,564
Sep 2021174069.865.35$12,156
Aug 20210066.024.22$0
Jul 2021160070.783.98$11,325
Jun 2021184069.493.38$12,786
May 2021181063.483.02$11,490
Apr 2021182060.362.76$10,986
Mar 2021182061.302.72$11,157
Feb 2021169057.805.55$9,768
Jan 2021170050.412.81$8,570
Dec 2020172044.642.68$7,678
Nov 2020327038.772.71$12,678
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 20180060.183.08$0
May 20180065.382.90$0
Apr 2018167063.842.90$10,661
Mar 2018167061.222.79$10,224
Feb 2018166061.782.77$10,255
Jan 2018158062.874.01$9,933
Dec 2017145057.272.92$8,304
Nov 20170055.423.12$0
Oct 2017154049.292.98$7,591
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 2017174043.873.09$7,633
Jun 2017158042.493.09$6,713
May 2017181045.373.26$8,212
Apr 20170047.933.21$0
Mar 2017175046.772.98$8,185
Feb 2017152050.452.95$7,668
Jan 2017346049.413.42$17,096
Dec 20160048.763.72$0
Nov 2016168042.492.64$7,138
Oct 2016175046.193.09$8,083
Sep 2016182041.553.10$7,562
Aug 2016180041.442.92$7,459
Jul 2016344041.622.92$14,317
Jun 2016359045.352.69$16,281
May 2016178042.521.99$7,569
Apr 20160036.561.99$0
Mar 201646033.011.79$1,518
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 2015027049.822.71$731
Mar 2015016742.892.93$490
Feb 201518319244.662.98$8,744
Jan 20150843.433.10$25
Dec 201413623754.693.59$8,289
Nov 201417433970.464.25$13,701
Oct 201434857078.303.90$29,472
Sep 201417159686.164.05$17,144
Aug 201418237389.394.04$17,774
Jul 201417139496.564.18$18,159
Jun 201417035498.164.74$18,364
May 201416831594.734.73$17,404
Apr 201416854295.944.81$18,724
Mar 201416960195.895.06$19,245
Feb 2014044597.406.19$2,755
Jan 2014063290.404.86$3,072
Dec 2013034791.824.35$1,511
Nov 201316836188.853.74$16,276
Oct 201316434097.423.78$17,262
Sep 2013167504104.113.72$19,260
Aug 2013346385104.253.52$37,427
Jul 2013160412102.523.72$17,935
Jun 201316934994.403.93$17,326
May 201335334594.834.15$34,906
Apr 201317730693.964.28$17,941
Mar 201318065193.623.91$19,399
Feb 201317147091.233.42$17,208
Jan 201315157491.603.42$15,795
Dec 201218734086.773.42$17,389
Nov 201217745286.953.62$17,029
Oct 201216565389.383.40$16,968
Sep 201217031094.672.92$16,999
Aug 201215937392.662.91$15,818
Jul 201233335685.133.02$29,424
Jun 2012036879.822.52$927
May 201235052691.612.49$33,372
Apr 2012178393101.652.00$18,878
Mar 2012355343105.052.22$38,055
Feb 2012174894101.102.57$19,889
Jan 201235451698.092.73$36,135
Dec 201117160096.873.24$18,509
Nov 201135048295.723.31$35,098
Oct 2011044884.983.65$1,635
Sep 201134454983.623.99$30,953
Aug 201116994583.404.15$18,016
Jul 201135482194.144.52$37,034
Jun 2011065692.904.64$3,044
May 201127955398.134.40$29,814
Apr 2011168725105.964.33$20,943
Mar 201116864396.364.06$18,797
Feb 201117140985.644.18$16,354
Jan 201118149186.504.59$17,910
Dec 2010033585.734.35$1,457
Nov 2010034980.843.80$1,325
Oct 2010050778.103.51$1,779
Sep 2010054572.633.98$2,169
Aug 2010057373.684.42$2,532
Jul 2010047572.554.74$2,250
Jun 2010040770.364.91$1,999
May 2010044071.124.24$1,864
Apr 201009681.694.12$396
Mar 201007878.394.39$342
Feb 20100873.585.44$44
Jan 201001974.365.96$113
Dec 2009021371.445.48$1,168
Nov 2009032174.593.75$1,204
Oct 2009029372.544.11$1,204
Sep 200915716565.543.06$10,795
Aug 2009034967.423.22$1,123
Jul 200917552361.133.46$12,510
Jun 200918117766.163.90$12,664
May 200918140254.743.93$11,486
Apr 2009028146.773.59$1,008
Mar 200918050142.144.06$9,619
Feb 200913550732.814.63$6,778
Jan 200917212135.865.37$6,818
Dec 200818540137.105.98$9,260
Nov 2008048955.496.86$3,355
Oct 200818048875.246.92$16,921
Sep 2008186503101.767.88$22,890
Aug 2008182320114.228.48$23,503
Jul 2008174698131.0811.39$30,758
Jun 2008178549131.3313.03$30,532
May 2008181382123.1711.57$26,715
Apr 2008171446110.3110.45$23,526
Mar 2008182701101.909.66$25,320
Feb 200818533692.538.77$20,065
Jan 2008043390.388.21$3,553
Dec 200719336088.337.30$19,676
Nov 200718637791.677.29$19,800
Oct 200736552682.856.92$33,881
Sep 200717755475.846.24$16,883
Aug 200717652669.066.39$15,515
Jul 2007027870.906.39$1,776
Jun 200735327162.007.55$23,932
May 200717948658.747.85$14,328
Apr 200717840459.617.81$13,764
Mar 200734348556.927.30$23,065
Feb 2007038255.108.22$3,139
Jan 200717144950.306.73$11,622
Dec 200617847156.656.92$13,342
Nov 200617947754.207.62$13,335
Oct 200618555054.906.01$13,464
Sep 200618655560.085.04$13,971
Aug 200633958568.717.34$27,587
Jul 200619050169.376.34$16,358
Jun 200617737066.286.38$14,094
May 200618157966.016.42$15,668
Apr 200618340764.397.36$14,779
Mar 200618049756.707.08$13,726
Feb 200617340457.597.75$13,095
Jan 2006062260.598.93$5,557
Dec 200531457754.9413.42$24,992
Nov 200518451154.6910.59$15,474
Oct 200518857658.3413.80$18,914
Sep 200517959661.4512.08$18,199
Aug 200536660261.519.80$28,410
Jul 200518161655.697.84$14,912
Jun 200518052552.337.38$13,294
May 200517554645.226.65$11,545
Apr 200517649149.207.36$12,273
Mar 200537846850.377.15$22,388
Feb 200518954445.226.31$11,980
Jan 200517356443.166.32$11,032
Dec 200452555439.866.75$24,667
Nov 200416855745.286.33$11,133
Oct 200434255949.706.52$20,639
Sep 200416953443.245.28$10,129
Aug 200417759842.375.55$10,819
Jul 200435258738.286.08$17,046
Jun 200417984536.106.43$11,898
May 200434978237.486.49$18,159
Apr 200417873534.475.86$10,442
Mar 200455180934.365.53$23,406
Feb 200453613932.455.51$18,159
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 2003325033.487.93$10,881
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 200206123.653.51$214
Mar 2002021022.003.10$652
Feb 2002023918.222.38$568
Jan 2002022817.172.38$542
Dec 2001010616.932.36$251
Nov 2001024418.072.41$587
Oct 2001012519.782.53$316
Sep 200119044624.262.25$5,613
Aug 2001062824.873.05$1,917
Jul 2001053023.933.20$1,694
Jun 200113738724.563.82$4,845
May 200117851725.524.31$6,769
Apr 200117746924.685.34$6,871
Mar 200117478624.545.38$8,496
Feb 200117848327.755.77$7,725
Jan 200116940227.478.40$8,019
Dec 200018268526.889.12$11,141
Nov 200017347432.215.66$8,254
Oct 200034988831.235.15$15,468
Sep 200017775131.875.19$9,536
Aug 200018557029.644.54$8,072
Jul 200039565028.534.09$13,928
Jun 200036552229.304.40$12,990
May 200057073327.263.68$18,235
Apr 200037150824.513.12$10,676
Mar 200065075928.422.86$20,644
Feb 200039272527.622.73$12,804
Jan 200054776325.272.48$15,715
Dec 199953375524.282.42$14,771
Nov 199950569723.192.43$13,407
Oct 199957388320.982.80$14,497
Sep 199973176721.752.62$17,908
Aug 199972672219.262.88$16,059
Jul 199954076817.892.37$11,483
Jun 199975576215.942.36$13,835
May 199983588415.792.32$15,236
Apr 199980284715.102.21$13,980
Mar 199984659912.471.84$11,651
Feb 19995664019.981.82$6,378
Jan 1999028710.381.90$545
Dec 1998323299.201.77$878
Nov 19989911610.892.19$1,332
Oct 1998169012.421.97$2,099
Sep 1998340012.592.08$4,281
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 199803411.242.24$76
May 19980012.622.21$0
Apr 1998023213.042.51$581
Mar 199801612.802.31$37
Feb 1998021813.952.30$501
Jan 1998017114.702.15$368
Dec 1997012716.322.41$306
Nov 1997016918.193.09$522
Oct 1997023119.253.15$728
Sep 1997022517.742.95$665
Aug 19970017.862.55$0
Jul 19970017.582.25$0
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 199703620.492.21$79
Jan 1997021023.483.54$743
Dec 1996058323.32$0
Nov 19968450321.97$1,845
Oct 1996056723.31$0
Sep 199612260522.22$2,711
Aug 199618654520.26$3,768
Jul 199613659019.55$2,659
Jun 199620254318.73$3,783
May 199618954419.43$3,672
Apr 199621954021.51$4,711
Mar 199618158619.38$3,508
Feb 199624942416.98$4,228
Jan 199633650517.07$5,736
Dec 199536171117.19$6,206
Nov 199535425716.00$5,664
Oct 199535538715.43$5,478
Sep 199565156416.18$10,533
Aug 199535940515.92$5,715
Jul 19959059315.24$1,372
Jun 199517554116.41$2,872
May 199518056217.56$3,161
Apr 199520852417.73$3,688
Mar 199517148816.44$2,811
Feb 199518036916.58$2,984
Jan 199517834615.92$2,834
Dec 199436468515.03$5,471
Nov 199436061615.90$5,724
Oct 199418255415.58$2,836
Sep 199431566115.29$4,816
Aug 199427477816.13$4,420
Jul 199430648117.56$5,373
Jun 199441168817.09$7,024
May 199440569215.88$6,431
Apr 199430471614.14$4,299
Mar 199443684212.46$5,433
Feb 199431359312.50$3,913
Jan 199446329512.66$5,862
Dec 199345737512.33$5,635
Nov 199334512914.49$4,999
Oct 199344738415.85$7,085
Sep 199332727615.03$4,915
Aug 199325443415.66$3,978
Jul 199333759015.46$5,210
Jun 199348855416.79$8,194
May 19939943317.68$1,750
Apr 199333757018.05$6,083
Mar 199348761818.14$8,834
Feb 199390117.90$1,611
Jan 199316062716.93$2,709

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.

Dec 2025 — as filed, then multipliedworked
Oil                  157 bbl  × $ 56.66 =     $8,896
Casinghead gas         0 Mcf  × $  4.41 =         $0

────────────────────────────────────────────────────
Month total                                   $8,896

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. 10/O/1539 is the state's own key, not one this site invented.