COBB

Operated by THOMAS OPERATING LTD. CO. (P-5 854359) in the CHAPEL HILL (PETTIT) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 13405District 06Field 17008222OilCasinghead gasSaveExport
Value, all time
$3.5 M
May 1995 – May 2026
Value, last 12 filed months
$47 k
at the published price for each month
Months reported
373
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 55 leases and 63 wells, and the rule below applies to all of them.

Discovered
1940-02-02
as the register files it
Field class
Oil and gas
the register's own label
Between wells
933 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 1984-10-31.

The Commission's schedule remark for this field reads: FIELD RULES MADE PERMANENT 6-23-86 PER DOCKET NO.6-87,378.

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
OilDisposition60,517 bbl$2,700,914
Casinghead gasProduction213,906 Mcf$782,055
Total$3,482,969

31,928 Mcf of this lease's gas, across 20 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 (1)

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 32.3895, -95.0890. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.38952, -95.08903 · 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
0.0%
0 of 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
8,700 ft
1 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
1100.0%

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

The one well that filed a depth was drilled to 8,700 ft.

Completions filed
May 1995
1 of 1 wells

1 well

42-4233043218,700 ftMay 1995

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 (373)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

373 months

May 202600106.413.05$0
Apr 20260098.932.87$0
Mar 2026152089.753.15$13,642
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 2025179059.383.30$10,629
Sep 20250062.743.08$0
Aug 2025175063.933.01$11,188
Jul 20250066.743.32$0
Jun 2025180066.483.13$11,966
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 2025180067.704.27$12,186
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 2024172069.052.20$11,877
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 2024178075.632.06$13,462
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 2024178078.812.20$14,028
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 2023168089.042.74$14,959
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 2023172872.852.39$12,549
Feb 2023025875.112.47$636
Jan 2023021576.533.39$728
Dec 2022016476.415.73$940
Nov 2022028385.005.65$1,598
Oct 202215630687.185.86$15,394
Sep 2022026084.888.16$2,123
Aug 202217833594.529.13$19,882
Jul 20220358101.587.54$2,700
Jun 20220356115.097.98$2,840
May 20220201109.378.43$1,695
Apr 2022819104.226.84$8,503
Mar 20220214108.885.08$1,086
Feb 2022023691.054.86$1,147
Jan 2022013781.844.54$622
Dec 202101871.323.90$70
Nov 20210477.435.24$21
Oct 20211643679.795.71$13,291
Sep 2021027969.865.35$1,493
Aug 2021020266.024.22$853
Jul 202117331570.783.98$13,499
Jun 2021037969.493.38$1,281
May 202117832163.483.02$12,268
Apr 2021026360.362.76$725
Mar 2021029261.302.72$793
Feb 202117513557.805.55$10,864
Jan 2021032150.412.81$902
Dec 2020039844.642.68$1,065
Nov 202017631738.772.71$7,682
Oct 2020053236.972.48$1,319
Sep 202017050437.091.99$7,309
Aug 2020054939.982.39$1,309
Jul 202017751638.371.83$7,733
Jun 2020036034.901.69$609
May 2020046116.921.81$837
Apr 202016739914.751.80$3,183
Mar 2020050230.341.86$932
Feb 202017936649.881.98$9,653
Jan 2020031457.252.09$658
Dec 2019031759.012.30$730
Nov 201917837455.302.75$10,872
Oct 2019053253.472.42$1,287
Sep 2019051055.052.66$1,355
Aug 201917650453.112.30$10,509
Jul 2019059856.272.46$1,471
Jun 201917759252.782.49$10,817
May 2019034758.482.74$951
Apr 201917240262.632.75$11,878
Mar 2019044156.803.06$1,350
Feb 2019038150.852.79$1,064
Jan 20191707846.033.23$8,077
Dec 2018053046.594.19$2,218
Nov 201817839252.934.24$11,083
Oct 2018047161.443.40$1,601
Sep 201816811159.543.11$10,348
Aug 2018062459.403.07$1,914
Jul 201817382965.142.93$13,700
Jun 2018024660.183.08$757
May 2018057165.382.90$1,656
Apr 2018039963.842.90$1,157
Mar 201816546661.222.79$11,400
Feb 2018042861.782.77$1,184
Jan 2018055962.874.01$2,241
Dec 2017044057.272.92$1,285
Nov 201716342755.423.12$10,365
Oct 2017036249.292.98$1,080
Sep 2017018647.523.09$574
Aug 2017013245.373.00$397
Jul 201703743.873.09$114
Jun 20170242.493.09$6
May 201701545.373.26$49
Apr 2017015147.933.21$485
Mar 201707346.772.98$218
Feb 201717645050.452.95$10,208
Jan 201717575549.413.42$11,228
Dec 201601,00148.763.72$3,727
Nov 201618992942.492.64$10,487
Oct 2016094646.193.09$2,923
Sep 20161701,25141.553.10$10,942
Aug 2016018841.442.92$550
Jul 20161771,00241.622.92$10,297
Jun 2016014345.352.69$384
May 2016019742.521.99$392
Apr 201616821836.561.99$6,576
Mar 2016023333.011.79$418
Feb 2016043326.472.06$894
Jan 201617840727.352.36$5,831
Dec 2015036432.362.00$729
Nov 201516636938.792.17$7,239
Oct 2015039343.552.43$954
Sep 201517144842.992.76$8,587
Aug 2015050240.162.87$1,442
Jul 201515845348.152.95$8,942
Jun 201516745256.152.88$10,680
May 2015051555.212.96$1,522
Apr 201516960049.822.71$10,044
Mar 201516054342.892.93$8,456
Feb 201517648544.662.98$9,304
Jan 201516947743.433.10$8,819
Dec 2014042154.693.59$1,512
Nov 2014057870.464.25$2,458
Oct 201415869178.303.90$15,067
Sep 201417066386.164.05$17,329
Aug 201415957489.394.04$16,529
Jul 201416866296.564.18$18,989
Jun 2014061698.164.74$2,918
May 201417762794.734.73$19,731
Apr 201415559195.944.81$17,713
Mar 201416163895.895.06$18,665
Feb 2014058197.406.19$3,598
Jan 201416063190.404.86$17,531
Dec 201316951591.824.35$17,760
Nov 2013054488.853.74$2,034
Oct 201316254497.423.78$17,838
Sep 20130227104.113.72$844
Aug 2013139530104.253.52$16,358
Jul 20130483102.523.72$1,796
Jun 201315754594.403.93$16,965
May 201316836194.834.15$17,429
Apr 2013051393.964.28$2,197
Mar 201315256993.623.91$16,457
Feb 201316549891.233.42$16,756
Jan 201315053191.603.42$15,556
Dec 201214353586.773.42$14,238
Nov 201216641486.953.62$15,934
Oct 201216845989.383.40$16,576
Sep 2012056094.672.92$1,634
Aug 201215758992.662.91$16,261
Jul 201216858985.133.02$16,081
Jun 201216263679.822.52$14,533
May 201217162391.612.49$17,216
Apr 2012169683101.652.00$18,543
Mar 2012171746105.052.22$19,621
Feb 2012177610101.102.57$19,463
Jan 2012036398.092.73$992
Dec 20119262196.873.24$10,924
Nov 2011057495.723.31$1,901
Oct 201116369384.983.65$16,380
Sep 201116269683.623.99$16,321
Aug 201115571583.404.15$15,894
Jul 201117970794.144.52$20,045
Jun 201116269492.904.64$18,270
May 201116270898.134.40$19,016
Apr 2011168669105.964.33$20,700
Mar 201116270196.364.06$18,455
Feb 2011059685.644.18$2,491
Jan 201115858686.504.59$16,356
Dec 201016457285.734.35$16,547
Nov 201033460380.843.80$29,289
Oct 2010062378.103.51$2,186
Sep 201017051372.633.98$14,389
Aug 201016669973.684.42$15,320
Jul 201015967472.554.74$14,728
Jun 201016873570.364.91$15,430
May 201031874671.124.24$25,776
Apr 2010067381.694.12$2,775
Mar 201016662578.394.39$15,756
Feb 201016663973.585.44$15,692
Jan 201018056474.365.96$16,749
Dec 200915566771.445.48$14,731
Nov 200915964774.593.75$14,287
Oct 200916260572.544.11$14,238
Sep 200915857165.543.06$12,105
Aug 200917364867.423.22$13,749
Jul 200916970761.133.46$12,780
Jun 200916471966.163.90$13,651
May 200931366754.743.93$19,752
Apr 200917255046.773.59$10,018
Mar 200917767442.144.06$10,195
Feb 200917854632.814.63$8,370
Jan 200917159535.865.37$9,328
Dec 200818460537.105.98$10,443
Nov 200815851655.496.86$12,307
Oct 200830651575.246.92$26,588
Sep 2008178501101.767.88$22,060
Aug 2008166454114.228.48$22,812
Jul 2008329577131.0811.39$49,697
Jun 2008170439131.3313.03$28,047
May 2008179480123.1711.57$27,603
Apr 2008178444110.3110.45$24,277
Mar 2008168480101.909.66$21,758
Feb 200817945392.538.77$20,536
Jan 200817045290.388.21$19,074
Dec 200717540488.337.30$18,408
Nov 200716345991.677.29$18,289
Oct 200718045782.856.92$18,076
Sep 200717645775.846.24$16,201
Aug 200716949769.066.39$14,846
Jul 200734847670.906.39$27,714
Jun 200715749962.007.55$13,501
May 200717049658.747.85$13,878
Apr 200715949359.617.81$13,326
Mar 200735757956.927.30$24,548
Feb 200718257455.108.22$14,744
Jan 200718048850.306.73$12,337
Dec 200617651456.656.92$13,526
Nov 200617752654.207.62$13,600
Oct 200617853854.906.01$13,008
Sep 200634255360.085.04$23,333
Aug 200617465768.717.34$16,778
Jul 200617372569.376.34$16,600
Jun 200616163966.286.38$14,750
May 200617963066.016.42$15,864
Apr 200616962464.397.36$15,475
Mar 200617752556.707.08$13,754
Feb 200618035157.597.75$13,087
Jan 200634337060.598.93$24,088
Dec 200517941754.9413.42$15,428
Nov 200528444054.6910.59$20,191
Oct 200516644258.3413.80$15,782
Sep 200515542561.4512.08$14,658
Aug 200515349161.519.80$14,221
Jul 200517255455.697.84$13,924
Jun 200532653052.337.38$20,972
May 200516160545.226.65$11,304
Apr 200531755149.207.36$19,652
Mar 200518559950.377.15$13,604
Feb 200532055145.226.31$17,948
Jan 200534261843.166.32$18,668
Dec 200417959839.866.75$11,172
Nov 200434270045.286.33$19,917
Oct 200431565249.706.52$19,903
Sep 200432855643.245.28$17,121
Aug 200416659442.375.55$10,331
Jul 200433865038.286.08$16,893
Jun 200417264236.106.43$10,339
May 200433763137.486.49$16,729
Apr 200433859534.475.86$15,137
Mar 200435169434.365.53$15,898
Feb 200417267332.455.51$9,289
Jan 200434764732.036.30$15,190
Dec 200317467430.266.30$9,513
Nov 200332769328.804.60$12,602
Oct 200331779028.174.76$12,690
Sep 200330974626.314.75$11,673
Aug 200332291429.765.13$14,271
Jul 200332194329.415.17$14,317
Jun 200330588328.565.98$13,994
May 200333293426.595.97$14,406
Apr 200335194826.675.41$14,487
Mar 20033451,00431.146.10$16,864
Feb 200335288033.487.93$18,760
Jan 200335493730.315.58$15,960
Dec 200250796426.914.85$18,322
Nov 200233092324.664.14$11,956
Oct 20024051,00626.464.23$14,971
Sep 20023281,04827.443.64$12,810
Aug 20024851,15125.963.16$16,233
Jul 20023151,14624.583.06$11,251
Jun 200247399723.733.34$14,553
May 20024281,02024.663.58$14,210
Apr 20025281,05123.653.51$16,179
Mar 200232978222.003.10$9,664
Feb 200217262018.222.38$4,607
Jan 200232279817.172.38$7,425
Dec 200127681916.932.36$6,609
Nov 200126587218.072.41$6,886
Oct 200122985619.782.53$6,694
Sep 200121283124.262.25$7,014
Aug 200129493224.873.05$10,157
Jul 200124595223.933.20$8,906
Jun 200123491924.563.82$9,261
May 200131895825.524.31$12,242
Apr 200124689424.685.34$10,841
Mar 200132390924.545.38$12,814
Feb 200127179727.755.77$12,117
Jan 200132390527.478.40$16,474
Dec 200026690026.889.12$15,360
Nov 200025292532.215.66$13,351
Oct 200021789131.235.15$11,362
Sep 200030089531.875.19$14,203
Aug 200029190529.644.54$12,735
Jul 200029992528.534.09$12,313
Jun 200026977929.304.40$11,307
May 200031493927.263.68$12,015
Apr 200024074124.513.12$8,191
Mar 200029481028.422.86$10,672
Feb 200031975427.622.73$10,867
Jan 200030278225.272.48$9,571
Dec 199930875924.282.42$9,318
Nov 199932176323.192.43$9,301
Oct 199930879220.982.80$8,682
Sep 199930180621.752.62$8,658
Aug 199930486719.262.88$8,348
Jul 199931290317.892.37$7,724
Jun 199932686315.942.36$7,235
May 199932287715.792.32$7,120
Apr 199931783415.102.21$6,628
Mar 199937581012.471.84$6,165
Feb 19993177569.981.82$4,538
Jan 199938670510.381.90$5,346
Dec 19983747009.201.77$4,682
Nov 199833666710.892.19$5,117
Oct 199840172712.421.97$6,412
Sep 199831475312.592.08$5,521
Aug 199838180611.301.91$5,843
Jul 199834481711.742.24$5,866
Jun 199834373111.242.24$5,491
May 199840375112.622.21$6,743
Apr 199831871613.042.51$5,941
Mar 199839974312.802.31$6,823
Feb 199839066913.952.30$6,979
Jan 199835478314.702.15$6,891
Dec 199740676816.322.41$8,478
Nov 199740079418.193.09$9,728
Oct 199741889819.253.15$10,875
Sep 199741194317.742.95$10,078
Aug 199748195717.862.55$11,036
Jul 199734294117.582.25$8,127
Jun 199748373717.242.26$9,990
May 199750255618.972.31$10,806
Apr 199738232617.882.08$7,509
Mar 19971535118.951.94$2,998
Feb 19975547920.492.21$2,184
Jan 199710732023.483.54$3,645
Dec 1996096423.32$0
Nov 19968893321.97$1,933
Oct 1996961,18223.31$2,238
Sep 1996811,22122.22$1,800
Aug 1996751,24320.26$1,520
Jul 1996971,35019.55$1,896
Jun 19962111,32118.73$3,952
May 19961231,44519.43$2,390
Apr 199601,41521.51$0
Mar 1996961,53519.38$1,860
Feb 19961901,48216.98$3,226
Jan 199601,63617.07$0
Dec 19951081,69017.19$1,857
Nov 1995881,72616.00$1,408
Oct 19951311,84115.43$2,021
Sep 1995741,94816.18$1,197
Aug 1995882,10315.92$1,401
Jul 1995902,48915.24$1,372
Jun 19951222,45216.41$2,002
May 1995561,95217.56$983

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.

Mar 2026 — as filed, then multipliedworked
Oil                  152 bbl  × $ 89.75 =    $13,642
Casinghead gas         0 Mcf  × $  3.15 =         $0

────────────────────────────────────────────────────
Month total                                  $13,642

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. 06/O/13405 is the state's own key, not one this site invented.