COOPER -A-

Operated by LARGE OPERATING LLC (P-5 486623) in the PANHANDLE CARSON COUNTY FIELD field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 87District 10Field 68845001NGPA filingOilCasinghead gasSaveExport
Value, all time
$4.2 M
Jan 1993 – May 2026
Value, last 12 filed months
$108 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 580 leases and 3,796 wells, and the rule below applies to all of them.

Discovered
1921-12-31
as the register files it
Field class
Oil and gas
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 40 acres. The field rule took effect on 1989-05-01.

The Commission's schedule remark for this field reads: SPECIAL TESTING REQUIREMENTS FOR WELLS WITH GOR GREATER THAN 5000.

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
NGPA8none

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
OilDisposition75,805 bbl$3,451,634
Casinghead gasProduction248,382 Mcf$706,582
Total$4,158,216

60,180 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 (13)

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 35.6118, -101.1368. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

35.61228, -101.13630 · 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
7.7%
1 of 13 wells
With a plug date
7.7%
1 of 13 wells
Median depth
3,061 ft
2 wells filed one
Completion to plug
1 well filed both, dated out of order

What the state filed about each well

On the RRC proration schedule
17.7%
A plug date is filed
17.7%
BothOn the schedule and plugged. Neither fact cancels the other.
17.7%
NeitherNo plug date, and not on the schedule.
1292.3%

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, 2 of 13 wells. Median 3,061 ft, with the middle half between 3,060 and 3,061 ft; the shallowest is 3,060 ft and the deepest 3,061 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, 4 of 13 wells, Jul 1935 – Aug 1962. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jul 1935 – Aug 1962
4 of 13 wells; 9 filed none
Plug dates filed
Jul 1957
1 of 13 wells; 12 filed none

Last completion to plug: no median is published. 1 well on this lease filed both dates, and on that one the last completion is dated after the plug date, so there is no interval to take a median of. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

13 wells

42-065007261
42-06500729G 1
42-06500736G 2
42-065007413
42-065007464
42-06500751G 5
42-065007535
42-065007576
42-065047867
42-0650076783,061 ftAug 1962Jul 1957Yes
42-06500742G 3Aug 1962
42-06500760G 7Aug 1962
42-0650073323,060 ftJul 1935

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 2026286098.932.87$28,294
Mar 2026180089.753.15$16,155
Feb 2026173063.503.75$10,986
Jan 20260059.138.00$0
Dec 2025167056.664.41$9,462
Nov 20250058.593.93$0
Oct 2025167059.383.30$9,916
Sep 2025335062.743.08$21,018
Aug 20250063.933.01$0
Jul 2025188066.743.32$12,547
Jun 20250066.483.13$0
May 2025337060.553.23$20,405
Apr 2025190062.363.54$11,848
Mar 2025374067.704.27$25,320
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 2024174068.993.12$12,004
Nov 2024159069.052.20$10,979
Oct 2024166071.372.28$11,847
Sep 2024181069.612.36$12,599
Aug 2024352075.632.06$26,622
Jul 20240079.932.15$0
Jun 2024182078.082.63$14,211
May 2024173078.812.20$13,634
Apr 2024262084.451.66$22,126
Mar 2024132080.301.55$10,600
Feb 2024189076.091.78$14,381
Jan 2024166073.023.30$12,121
Dec 2023180071.262.61$12,827
Nov 2023311077.892.81$24,224
Oct 2023200085.443.09$17,088
Sep 2023151089.042.74$13,445
Aug 2023175080.522.67$14,091
Jul 2023174074.852.64$13,024
Jun 2023326068.962.26$22,481
May 2023185070.622.23$13,065
Apr 2023176078.122.24$13,749
Mar 2023249072.852.39$18,140
Feb 2023161075.112.47$12,093
Jan 2023278076.533.39$21,275
Dec 2022162076.415.73$12,378
Nov 2022320085.005.65$27,200
Oct 2022160087.185.86$13,949
Sep 2022377084.888.16$32,000
Aug 2022187094.529.13$17,675
Jul 20221660101.587.54$16,862
Jun 20221770115.097.98$20,371
May 20222460109.378.43$26,905
Apr 20222640104.226.84$27,514
Mar 20222380108.885.08$25,913
Feb 2022317091.054.86$28,863
Jan 2022188081.844.54$15,386
Dec 2021356071.323.90$25,390
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
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 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
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 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
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 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 2015140043.433.10$6,080
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 2014181086.164.05$15,595
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 2014195094.734.73$18,472
Apr 20140095.944.81$0
Mar 2014194095.895.06$18,603
Feb 20140097.406.19$0
Jan 2014168090.404.86$15,187
Dec 20130091.824.35$0
Nov 2013190088.853.74$16,882
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 20131780104.253.52$18,557
Jul 201300102.523.72$0
Jun 2013166094.403.93$15,670
May 2013176094.834.15$16,690
Apr 20130093.964.28$0
Mar 2013176093.623.91$16,477
Feb 2013167091.233.42$15,235
Jan 2013050091.603.42$1,710
Dec 201215541186.773.42$14,855
Nov 201218243986.953.62$17,416
Oct 201219020589.383.40$17,679
Sep 20121988294.672.92$18,984
Aug 2012022392.662.91$649
Jul 2012192985.133.02$16,372
Jun 2012193079.822.52$15,405
May 20120091.612.49$0
Apr 20121840101.652.00$18,704
Mar 2012366453105.052.22$39,455
Feb 2012040101.102.57$103
Jan 201239030398.092.73$39,084
Dec 2011020696.873.24$667
Nov 2011041795.723.31$1,381
Oct 201119336384.983.65$17,726
Sep 20111902083.623.99$15,968
Aug 201118922483.404.15$16,692
Jul 2011035994.144.52$1,622
Jun 201137115792.904.64$35,194
May 201119124298.134.40$19,809
Apr 2011189246105.964.33$21,092
Mar 20111897296.364.06$18,504
Feb 201137034385.644.18$33,121
Jan 201135164986.504.59$33,340
Dec 2010046585.734.35$2,022
Nov 201018620680.843.80$15,818
Oct 201018953278.103.51$16,628
Sep 201018414372.633.98$13,933
Aug 201018530773.684.42$14,988
Jul 201018830872.554.74$15,098
Jun 201037620870.364.91$27,477
May 201019447471.124.24$15,805
Apr 201037157681.694.12$32,682
Mar 201036763878.394.39$31,569
Feb 201018154473.585.44$16,279
Jan 201036459274.365.96$30,598
Dec 200918345871.445.48$15,585
Nov 200918730374.593.75$15,085
Oct 200918857872.544.11$16,013
Sep 200918633565.543.06$13,217
Aug 200937022067.423.22$25,653
Jul 200937954561.133.46$25,056
Jun 200937151866.163.90$26,563
May 200937363254.743.93$22,899
Apr 200937562846.773.59$19,792
Mar 200938863542.144.06$18,928
Feb 200919142332.814.63$8,226
Jan 200938142435.865.37$15,940
Dec 200819141437.105.98$9,561
Nov 200858654655.496.86$36,263
Oct 200819763175.246.92$19,190
Sep 2008588671101.767.88$65,120
Aug 20080709114.228.48$6,014
Jul 2008377641131.0811.39$56,718
Jun 20080547131.3313.03$7,129
May 2008181462123.1711.57$27,641
Apr 2008370612110.3110.45$47,213
Mar 2008178575101.909.66$23,695
Feb 200819259892.538.77$23,011
Jan 200840750290.388.21$40,904
Dec 2007035888.337.30$2,614
Nov 200720334491.677.29$21,117
Oct 200719438682.856.92$18,745
Sep 200719128075.846.24$16,234
Aug 200719329969.066.39$15,239
Jul 200719228070.906.39$15,401
Jun 200738728562.007.55$26,145
May 200719635158.747.85$14,267
Apr 200719340759.617.81$14,681
Mar 200719746756.927.30$14,623
Feb 200719042155.108.22$13,928
Jan 200719451750.306.73$13,236
Dec 200619743956.656.92$14,197
Nov 200618143154.207.62$13,093
Oct 200619045954.906.01$13,191
Sep 2006050560.085.04$2,544
Aug 200638246168.717.34$29,631
Jul 200619150369.376.34$16,440
Jun 200618884366.286.38$17,842
May 200619044466.016.42$15,395
Apr 200638847564.397.36$28,480
Mar 2006029656.707.08$2,097
Feb 200638146157.597.75$25,515
Jan 200639252660.598.93$28,450
Dec 200520246254.9413.42$17,296
Nov 200519748754.6910.59$15,930
Oct 200516557858.3413.80$17,600
Sep 200519688661.4512.08$22,746
Aug 200539297061.519.80$33,615
Jul 20053891,06355.697.84$30,001
Jun 200538486952.337.38$26,509
May 200537571945.226.65$21,740
Apr 200519752449.207.36$13,549
Mar 200518751750.377.15$13,118
Feb 200518445245.226.31$11,173
Jan 200519549043.166.32$11,514
Dec 200439258639.866.75$19,581
Nov 200440260445.286.33$22,026
Oct 200458465649.706.52$33,299
Sep 200438159543.245.28$19,618
Aug 200439457642.375.55$19,891
Jul 200438459338.286.08$18,307
Jun 200419257436.106.43$10,624
May 200419263137.486.49$11,294
Apr 200438860334.475.86$16,907
Mar 200439058134.365.53$16,613
Feb 200419854032.455.51$9,400
Jan 200437961232.036.30$15,995
Dec 200339470330.266.30$16,352
Nov 200319463428.804.60$8,501
Oct 200339870928.174.76$14,586
Sep 200319670526.314.75$8,505
Aug 200335767429.765.13$14,082
Jul 200339780629.415.17$15,843
Jun 200319469628.565.98$9,705
May 200337080326.595.97$14,634
Apr 2003065426.675.41$3,536
Mar 200319266031.146.10$10,002
Feb 200319856733.487.93$11,123
Jan 200319659830.315.58$9,279
Dec 200219854326.914.85$7,964
Nov 200220149524.664.14$7,004
Oct 200219552026.464.23$7,359
Sep 200219348127.443.64$7,044
Aug 20025046825.963.16$2,779
Jul 200218353724.583.06$6,142
Jun 200228752523.733.34$8,563
May 200217461024.663.58$6,477
Apr 200218956323.653.51$6,447
Mar 200218862922.003.10$6,088
Feb 200237983118.222.38$8,880
Jan 200239269017.172.38$8,370
Dec 200119056116.932.36$4,543
Nov 200120041918.072.41$4,622
Oct 200120049819.782.53$5,215
Sep 200119157724.262.25$5,933
Aug 200119356024.873.05$6,510
Jul 200118363623.933.20$6,413
Jun 2001063324.563.82$2,421
May 200118867325.524.31$7,697
Apr 200119061124.685.34$7,949
Mar 200120457224.545.38$8,081
Feb 200118145727.755.77$7,658
Jan 2001051527.478.40$4,325
Dec 200018845126.889.12$9,168
Nov 2000048032.215.66$2,716
Oct 200018638231.235.15$7,774
Sep 2000042931.875.19$2,225
Aug 200018647629.644.54$7,674
Jul 2000040728.534.09$1,665
Jun 2000055929.304.40$2,458
May 200018753627.263.68$7,070
Apr 2000033624.513.12$1,047
Mar 200018860328.422.86$7,067
Feb 200019551427.622.73$6,787
Jan 2000061925.272.48$1,535
Dec 199922258124.282.42$6,798
Nov 199918861723.192.43$5,861
Oct 19991801,20620.982.80$7,158
Sep 19991861,25521.752.62$7,332
Aug 19991821,26919.262.88$7,154
Jul 19991891,06517.892.37$5,908
Jun 199918783315.942.36$4,948
May 199938054615.792.32$7,267
Apr 199918924615.102.21$3,397
Mar 199919351812.471.84$3,359
Feb 19993851,2289.981.82$6,075
Jan 19991901,48810.381.90$4,799
Dec 19981931,7399.201.77$4,859
Nov 19981922,22110.892.19$6,945
Oct 19981913,15612.421.97$8,587
Sep 19981852,44912.592.08$7,429
Aug 19981863,20011.301.91$8,205
Jul 19981864,11811.742.24$11,397
Jun 19981854,56811.242.24$12,299
May 199805,12612.622.21$11,310
Apr 19981835,31313.042.51$15,697
Mar 19983765,08412.802.31$16,554
Feb 19981805,13813.952.30$14,324
Jan 19985715,49714.702.15$20,239
Dec 19971875,49616.322.41$16,303
Nov 19971944,64418.193.09$17,871
Oct 19971805,18419.253.15$19,794
Sep 19973743,93617.742.95$18,265
Aug 19973714,30017.862.55$17,611
Jul 19973754,32817.582.25$16,317
Jun 19971854,17217.242.26$12,606
May 19973775,01518.972.31$18,729
Apr 19973794,14817.882.08$15,416
Mar 19975514,33918.951.94$18,855
Feb 19973843,89920.492.21$16,469
Jan 19973823,70623.483.54$22,087
Dec 19963813,25923.32$8,885
Nov 19963723,55621.97$8,173
Oct 19963763,61423.31$8,765
Sep 19963793,80222.22$8,421
Aug 19965614,25920.26$11,366
Jul 19963654,22519.55$7,136
Jun 19965514,11618.73$10,320
May 19965624,02019.43$10,920
Apr 19965644,44421.51$12,132
Mar 19963773,36319.38$7,306
Feb 19963863,33816.98$6,554
Jan 19965731,29917.07$9,781
Dec 199520168117.19$3,455
Nov 199555949416.00$8,944
Oct 199537354115.43$5,755
Sep 199537355916.18$6,035
Aug 199536257515.92$5,763
Jul 199536560515.24$5,563
Jun 199536756616.41$6,022
May 199536756117.56$6,445
Apr 199537557617.73$6,649
Mar 199555457116.44$9,108
Feb 199537354616.58$6,184
Jan 199537655315.92$5,986
Dec 199455156415.03$8,282
Nov 199438356515.90$6,090
Oct 199436366415.58$5,656
Sep 199475062015.29$11,468
Aug 199432131116.13$5,178
Jul 199432132517.56$5,637
Jun 199432930017.09$5,623
May 199449232715.88$7,813
Apr 199432733514.14$4,624
Mar 199449133712.46$6,118
Feb 199432035312.50$4,000
Jan 199432638212.66$4,127
Dec 199315549712.33$1,911
Nov 199348439714.49$7,013
Oct 199332143315.85$5,088
Sep 199333441815.03$5,020
Aug 199366744315.66$10,445
Jul 199316542515.46$2,551
Jun 199333441016.79$5,608
May 199349341517.68$8,716
Apr 199332041818.05$5,776
Mar 199350739618.14$9,197
Feb 199317038717.90$3,043
Jan 199334233516.93$5,790

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.

Apr 2026 — as filed, then multipliedworked
Oil                  286 bbl  × $ 98.93 =    $28,294
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $28,294

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/87 is the state's own key, not one this site invented.