NUNN "A"

Operated by ROBERTSON RESOURCES, INC. (P-5 718770) in the SPRABERRY (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 11639District 7CField 85279200NGPA filingOilCasinghead gasSaveExport
Value, all time
$6.4 M
Jan 1993 – May 2026
Value, last 12 filed months
$10 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 7,461 leases and 22,481 wells, and the rule below applies to all of them.

Discovered
1904-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2016-03-08.

The Commission's schedule remark for this field reads: AREA) 85279200.

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
NGPA1none

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
OilDisposition116,929 bbl$4,853,164
Casinghead gasProduction526,712 Mcf$1,582,523
Total$6,435,687

163,673 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 (3)

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 31.5810, -101.6896. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

31.58085, -101.69008 · 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
66.7%
2 of 3 wells
With a plug date
66.7%
2 of 3 wells
Median depth
8,400 ft
3 wells filed one
Completion to plug
41.9 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
266.7%
A plug date is filed
266.7%
BothOn the schedule and plugged. Neither fact cancels the other.
266.7%
NeitherNo plug date, and not on the schedule.
133.3%

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

Between 8,340 and 8,400 ft, median 8,400 ft, over the 3 wells that filed a depth.

Completions filed
Oct 1972 – Feb 1991
3 of 3 wells
Plug dates filed
Nov 2023
2 of 3 wells; 1 filed none

Last completion to plug: a median of 41.9 years across the 2 wells that filed both dates, with the middle half between 37.3 years and 46.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-3833406348,400 ftFeb 1991Nov 2023Yes
42-3833350738,400 ftNov 1985
42-3830165618,340 ftOct 1972Nov 2023Yes

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 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 2025167062.743.08$10,478
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 2025188060.553.23$11,383
Apr 20250062.363.54$0
Mar 2025190067.704.27$12,863
Feb 20250070.884.34$0
Jan 2025185074.324.28$13,749
Dec 2024191068.993.12$13,177
Nov 20240069.052.20$0
Oct 2024187071.372.28$13,346
Sep 2024171069.612.36$11,903
Aug 2024187075.632.06$14,143
Jul 2024177079.932.15$14,148
Jun 20240078.082.63$0
May 2024182078.812.20$14,343
Apr 20240084.451.66$0
Mar 2024157080.301.55$12,607
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 2023184071.262.61$13,112
Nov 2023186077.892.81$14,488
Oct 20230085.443.09$0
Sep 20230089.042.74$0
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 2023169072.852.39$12,312
Feb 20230075.112.47$0
Jan 2023191076.533.39$14,617
Dec 2022188076.415.73$14,365
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 2022158094.529.13$14,934
Jul 20221870101.587.54$18,995
Jun 202200115.097.98$0
May 20221890109.378.43$20,671
Apr 20221720104.226.84$17,926
Mar 202200108.885.08$0
Feb 2022181091.054.86$16,480
Jan 20220081.844.54$0
Dec 2021181071.323.90$12,909
Nov 2021186077.435.24$14,402
Oct 2021196079.795.71$15,639
Sep 2021185069.865.35$12,924
Aug 20210066.024.22$0
Jul 2021185070.783.98$13,094
Jun 2021357069.493.38$24,808
May 20210063.483.02$0
Apr 2021183060.362.76$11,046
Mar 2021183061.302.72$11,218
Feb 20210057.805.55$0
Jan 2021186050.412.81$9,376
Dec 2020187044.642.68$8,348
Nov 2020372038.772.71$14,422
Oct 2020185036.972.48$6,839
Sep 20200037.091.99$0
Aug 2020177039.982.39$7,076
Jul 20200038.371.83$0
Jun 2020333034.901.69$11,622
May 20200016.921.81$0
Apr 2020181014.751.80$2,670
Mar 2020180030.341.86$5,461
Feb 2020370049.881.98$18,456
Jan 2020344057.252.09$19,694
Dec 20190059.012.30$0
Nov 2019187055.302.75$10,341
Oct 2019349053.472.42$18,661
Sep 2019183055.052.66$10,074
Aug 2019351053.112.30$18,642
Jul 2019181056.272.46$10,185
Jun 2019514052.782.49$27,129
May 2019173058.482.74$10,117
Apr 2019178062.632.75$11,148
Mar 2019347056.803.06$19,710
Feb 2019326050.852.79$16,577
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 2018167059.543.11$9,943
Aug 2018168059.403.07$9,979
Jul 2018337065.142.93$21,952
Jun 2018367060.183.08$22,086
May 20180065.382.90$0
Apr 2018325063.842.90$20,748
Mar 2018687061.222.79$42,058
Feb 2018367061.782.77$22,673
Jan 2018171062.874.01$10,751
Dec 2017176057.272.92$10,080
Nov 2017685055.423.12$37,963
Oct 2017351049.292.98$17,301
Sep 2017500047.523.09$23,760
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 2017691045.373.26$31,351
Apr 2017181047.933.21$8,675
Mar 2017742046.772.98$34,703
Feb 2017347050.452.95$17,506
Jan 20170049.413.42$0
Dec 2016180048.763.72$8,777
Nov 2016373042.492.64$15,849
Oct 20161,070046.193.09$49,423
Sep 20160041.553.10$0
Aug 2016171041.442.92$7,086
Jul 2016521041.622.92$21,684
Jun 2016355045.352.69$16,099
May 20167219542.521.99$30,846
Apr 201601336.561.99$26
Mar 20160033.011.79$0
Feb 2016172026.472.06$4,553
Jan 201605427.352.36$128
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 2015346042.992.76$14,875
Aug 2015351040.162.87$14,096
Jul 20156751348.152.95$32,540
Jun 2015015956.152.88$458
May 201535319755.212.96$20,071
Apr 201536535749.822.71$19,151
Mar 20153717542.892.93$16,132
Feb 201506744.662.98$199
Jan 2015012643.433.10$391
Dec 20143785954.693.59$20,885
Nov 201402070.464.25$85
Oct 2014016178.303.90$628
Sep 20141883086.164.05$16,319
Aug 201434893389.394.04$34,872
Jul 201437528296.564.18$37,389
Jun 201437861298.164.74$40,003
May 201436898294.734.73$39,502
Apr 201437144195.944.81$37,715
Mar 201434896095.895.06$38,224
Feb 201473861797.406.19$75,702
Jan 2014043490.404.86$2,110
Dec 2013012191.824.35$527
Nov 2013032688.853.74$1,219
Oct 201336361097.423.78$37,669
Sep 20130543104.113.72$2,019
Aug 20130521104.253.52$1,835
Jul 2013708495102.523.72$74,424
Jun 2013034394.403.93$1,349
May 2013033894.834.15$1,402
Apr 201335218793.964.28$33,875
Mar 201352752693.623.91$51,396
Feb 201336153091.233.42$34,747
Jan 201317453091.603.42$17,751
Dec 201235450586.773.42$32,444
Nov 201271053486.953.62$63,670
Oct 201235141389.383.40$32,776
Sep 2012026694.672.92$776
Aug 201269946892.662.91$66,130
Jul 2012067685.133.02$2,042
Jun 201270863779.822.52$58,117
May 2012089191.612.49$2,217
Apr 2012351844101.652.00$37,364
Mar 2012334678105.052.22$36,593
Feb 20120710101.102.57$1,825
Jan 201233634098.092.73$33,888
Dec 201133483696.873.24$35,063
Nov 201116979095.723.31$18,793
Oct 20113381,08184.983.65$32,667
Sep 201133929483.623.99$29,519
Aug 201133860283.404.15$30,687
Jul 201133784294.144.52$35,529
Jun 20113361,02792.904.64$35,980
May 201101,25298.134.40$5,515
Apr 2011170844105.964.33$21,670
Mar 20111711,00796.364.06$20,563
Feb 2011061585.644.18$2,571
Jan 20113561,22386.504.59$36,406
Dec 201001,10385.734.35$4,796
Nov 20103571,12580.843.80$33,130
Oct 20103571,12778.103.51$31,836
Sep 201001,17972.633.98$4,692
Aug 20105341,01773.684.42$43,840
Jul 201001,06672.554.74$5,049
Jun 20103581,31970.364.91$31,666
May 20107091,41871.124.24$56,430
Apr 201001,24581.694.12$5,133
Mar 20107151,10978.394.39$60,916
Feb 201035983173.585.44$30,938
Jan 201001,05374.365.96$6,280
Dec 200936083471.445.48$30,292
Nov 20093571,04774.593.75$30,556
Oct 2009078872.544.11$3,239
Sep 200936075565.543.06$25,908
Aug 200935688667.423.22$26,853
Jul 200901,01261.133.46$3,506
Jun 2009083566.163.90$3,252
May 20093601,07854.743.93$23,938
Apr 20093611,11346.773.59$20,877
Mar 200901,36742.144.06$5,549
Feb 20093521,16832.814.63$16,960
Jan 20097151,26135.865.37$32,413
Dec 200801,36737.105.98$8,171
Nov 20083611,64955.496.86$31,345
Oct 200801,27075.246.92$8,791
Sep 2008357857101.767.88$43,079
Aug 20083561,066114.228.48$49,705
Jul 200801,579131.0811.39$17,984
Jun 20080811131.3313.03$10,569
May 2008364811123.1711.57$54,221
Apr 20083641,041110.3110.45$51,036
Mar 20083581,671101.909.66$52,629
Feb 2008090992.538.77$7,972
Jan 20083591,00190.388.21$40,660
Dec 200701,22588.337.30$8,945
Nov 20073611,05391.677.29$40,771
Oct 20073581,60282.856.92$40,749
Sep 20073591,66975.846.24$37,648
Aug 200701,39269.066.39$8,892
Jul 20073571,85670.906.39$37,167
Jun 20077151,33862.007.55$54,430
May 200701,01758.747.85$7,980
Apr 200701,75559.617.81$13,698
Mar 2007064256.927.30$4,688
Feb 2007047655.108.22$3,911
Jan 200735792350.306.73$24,166
Dec 200601,44356.656.92$9,983
Nov 20063581,48154.207.62$30,685
Oct 200618497654.906.01$15,971
Sep 2006081860.085.04$4,120
Aug 200601,13368.717.34$8,316
Jul 200601,33969.376.34$8,493
Jun 200617496566.286.38$17,693
May 200601,14866.016.42$7,376
Apr 2006071264.397.36$5,241
Mar 200636276056.707.08$25,908
Feb 2006082157.597.75$6,364
Jan 200601,51860.598.93$13,561
Dec 200535886954.9413.42$31,327
Nov 20053571,87254.6910.59$39,346
Oct 200501,10258.3413.80$15,203
Sep 200501,03561.4512.08$12,502
Aug 200501,13961.519.80$11,159
Jul 20053601,36355.697.84$30,739
Jun 200501,52652.337.38$11,263
May 200501,67045.226.65$11,107
Apr 20058992,13149.207.36$59,916
Mar 20051821,07850.377.15$16,880
Feb 200501,50745.226.31$9,512
Jan 200501,04543.166.32$6,607
Dec 200401,48439.866.75$10,019
Nov 20041871,63845.286.33$18,837
Oct 20043681,60349.706.52$28,733
Sep 200401,95843.245.28$10,346
Aug 20047271,38842.375.55$38,507
Jul 200402,15838.286.08$13,130
Jun 20043742,12436.106.43$27,165
May 20043752,19737.486.49$28,324
Apr 20047332,10834.475.86$37,616
Mar 20045672,36534.365.53$32,561
Feb 20043452,17932.455.51$23,201
Jan 200401,73632.036.30$10,936
Dec 20037342,02330.266.30$34,959
Nov 20033682,02328.804.60$19,894
Oct 200302,19328.174.76$10,438
Sep 20033752,13226.314.75$19,992
Aug 20039292,44529.765.13$40,189
Jul 200301,86429.415.17$9,638
Jun 20035672,25128.565.98$29,661
May 20037522,82526.595.97$36,869
Apr 20033512,11726.675.41$20,808
Mar 20033802,26931.146.10$25,665
Feb 20033711,52433.487.93$24,500
Jan 20033862,36730.315.58$24,912
Dec 20025551,77526.914.85$23,550
Nov 200201,93524.664.14$8,005
Oct 200201,21826.464.23$5,151
Sep 20023842,22327.443.64$18,618
Aug 20023662,53525.963.16$17,523
Jul 20029352,80924.583.06$31,583
Jun 20021872,31023.733.34$12,149
May 20023672,84724.663.58$19,254
Apr 20025642,24923.653.51$21,238
Mar 20027602,20622.003.10$23,565
Feb 20021932,20918.222.38$8,764
Jan 20021912,54817.172.38$9,333
Dec 20017531,47916.932.36$16,245
Nov 200112,31618.072.41$5,589
Oct 20015783,42319.782.53$20,089
Sep 20013662,03324.262.25$13,456
Aug 200101,67124.873.05$5,102
Jul 20013821,95023.933.20$15,376
Jun 20015702,75424.563.82$24,531
May 20013852,68825.524.31$21,403
Apr 20013802,63424.685.34$23,432
Mar 20013782,72224.545.38$23,911
Feb 20015272,02427.755.77$26,297
Jan 200102,21427.478.40$18,595
Dec 20003372,08826.889.12$28,106
Nov 20005722,22332.215.66$31,002
Oct 20005662,91431.235.15$32,670
Sep 20001912,54431.875.19$19,282
Aug 20005722,98029.644.54$30,486
Jul 20001852,62128.534.09$15,997
Jun 20007352,88029.304.40$34,200
May 20005443,13527.263.68$26,365
Apr 20003692,78524.513.12$17,722
Mar 20003722,78828.422.86$18,545
Feb 20005592,93427.622.73$23,439
Jan 20003722,27425.272.48$15,041
Dec 19995522,75324.282.42$20,075
Nov 19993692,74523.192.43$15,238
Oct 19995523,15520.982.80$20,427
Sep 19993632,78421.752.62$15,186
Aug 19993482,86719.262.88$14,947
Jul 19997353,08317.892.37$20,463
Jun 19995472,95915.942.36$15,709
May 19991803,06015.792.32$9,945
Apr 19997043,16215.102.21$17,612
Mar 19993652,87812.471.84$9,842
Feb 19995562,5719.981.82$10,222
Jan 19995553,19910.381.90$11,839
Dec 19983643,1229.201.77$8,885
Nov 19983662,79910.892.19$10,104
Oct 19987013,11312.421.97$14,837
Sep 19983372,75212.592.08$9,974
Aug 19983622,94411.301.91$9,706
Jul 19983682,91511.742.24$10,842
Jun 19983583,27411.242.24$11,349
May 19985303,26512.622.21$13,892
Apr 19987523,44013.042.51$18,424
Mar 19983813,36012.802.31$12,637
Feb 19983742,89813.952.30$11,880
Jan 19987313,50914.702.15$18,307
Dec 19975713,68216.322.41$18,196
Nov 19973783,03118.193.09$16,236
Oct 19973593,66819.253.15$18,464
Sep 19975183,46017.742.95$19,413
Aug 19973813,70117.862.55$16,260
Jul 19976963,84517.582.25$20,875
Jun 19975333,83917.242.26$17,854
May 19971,0713,56918.972.31$28,556
Apr 199703,19417.882.08$6,652
Mar 19976523,22918.951.94$18,617
Feb 19976402,86420.492.21$19,431
Jan 19973543,14223.483.54$19,434
Dec 19966363,14423.32$14,832
Nov 19963653,39821.97$8,019
Oct 19967344,25423.31$17,110
Sep 199602,75622.22$0
Aug 19963623,67020.26$7,334
Jul 19969023,79619.55$17,634
Jun 19961813,46018.73$3,390
May 19968353,55619.43$16,224
Apr 19963773,40121.51$8,109
Mar 19963603,74019.38$6,977
Feb 19967553,29116.98$12,820
Jan 19967503,78017.07$12,803
Dec 19953683,71217.19$6,326
Nov 19955133,60316.00$8,208
Oct 19955003,20215.43$7,715
Sep 19953643,33016.18$5,890
Aug 19955423,38615.92$8,629
Jul 19954613,68315.24$7,026
Jun 19956633,36116.41$10,880
May 19951803,06217.56$3,161
Apr 19957983,33117.73$14,149
Mar 19954173,31416.44$6,855
Feb 19956603,29616.58$10,943
Jan 19953173,53615.92$5,047
Dec 19944303,54215.03$6,463
Nov 19947173,45515.90$11,400
Oct 19946333,84115.58$9,862
Sep 19944392,87915.29$6,712
Aug 19944493,12816.13$7,242
Jul 19944043,17517.56$7,094
Jun 19945983,16717.09$10,220
May 19946322,61015.88$10,036
Apr 19944663,19714.14$6,589
Mar 19947493,50712.46$9,333
Feb 19945122,87212.50$6,400
Jan 19941763,34112.66$2,228
Dec 19936593,59212.33$8,125
Nov 19935163,90414.49$7,477
Oct 19937343,60215.85$11,634
Sep 19938163,65315.03$12,264
Aug 19933343,74515.66$5,230
Jul 19936403,64615.46$9,894
Jun 19936493,30516.79$10,897
May 19935913,70517.68$10,449
Apr 19933323,14318.05$5,993
Mar 19938313,74018.14$15,074
Feb 19939312,75317.90$16,665
Jan 19933523,10916.93$5,959

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.

Sep 2025 — as filed, then multipliedworked
Oil                  167 bbl  × $ 62.74 =    $10,478
Casinghead gas         0 Mcf  × $  3.08 =         $0

────────────────────────────────────────────────────
Month total                                  $10,478

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. 7C/O/11639 is the state's own key, not one this site invented.