MAYFIELD, STANLEY B.

Operated by UPP OPERATING, LLC (P-5 875310) in the M. M. W. (CANYON) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 79271District 7CField 56267250CondensateGasSaveExport
Value, all time
$2.3 M
Jan 1993 – May 2026
Value, last 12 filed months
$12 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
condensate, 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 30 leases and 30 wells, and the rule below applies to all of them.

Discovered
1986-05-01
as the register files it
Field class
Gas
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 1986-05-01.

The Commission's schedule remark for this field reads: OPERATOR REQUEST

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
CondensateDisposition94 bbl$4,476
GasProduction598,866 Mcf$2,315,723
Total$2,320,199

82,599 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.

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 20260266106.413.05$810
Apr 2026025198.932.87$720
Mar 2026026689.753.15$838
Feb 2026024363.503.75$911
Jan 2026027559.138.00$2,199
Dec 2025027256.664.41$1,200
Nov 2025030158.593.93$1,182
Oct 2025018959.383.30$625
Sep 2025032062.743.08$985
Aug 2025017563.933.01$528
Jul 2025028766.743.32$951
Jun 2025028166.483.13$879
May 2025028460.553.23$918
Apr 2025013962.363.54$492
Mar 2025027167.704.27$1,157
Feb 2025025570.884.34$1,107
Jan 2025030574.324.28$1,305
Dec 2024030768.993.12$958
Nov 2024030269.052.20$664
Oct 2024029771.372.28$678
Sep 2024017569.612.36$414
Aug 2024025275.632.06$520
Jul 2024030779.932.15$659
Jun 2024047678.082.63$1,254
May 2024028378.812.20$622
Apr 2024026184.451.66$433
Mar 2024026580.301.55$409
Feb 2024026976.091.78$480
Jan 2024028973.023.30$953
Dec 2023025771.262.61$671
Nov 2023027777.892.81$778
Oct 2023025885.443.09$797
Sep 2023028789.042.74$785
Aug 2023030580.522.67$815
Jul 2023031174.852.64$822
Jun 2023030668.962.26$691
May 2023031570.622.23$702
Apr 2023030078.122.24$671
Mar 2023030672.852.39$732
Feb 2023027375.112.47$673
Jan 2023031376.533.39$1,060
Dec 2022027076.415.73$1,547
Nov 2022028985.005.65$1,632
Oct 2022031087.185.86$1,818
Sep 2022030384.888.16$2,474
Aug 2022030894.529.13$2,811
Jul 20220306101.587.54$2,308
Jun 20220311115.097.98$2,481
May 20220317109.378.43$2,673
Apr 20220291104.226.84$1,990
Mar 20220293108.885.08$1,487
Feb 2022024491.054.86$1,186
Jan 2022028681.844.54$1,298
Dec 2021030071.323.90$1,170
Nov 2021031077.435.24$1,623
Oct 2021030379.795.71$1,731
Sep 2021022469.865.35$1,199
Aug 2021031966.024.22$1,346
Jul 2021033870.783.98$1,346
Jun 2021034469.493.38$1,163
May 2021134363.483.02$1,099
Apr 2021035160.362.76$968
Mar 2021036461.302.72$989
Feb 2021029557.805.55$1,637
Jan 2021034850.412.81$978
Dec 2020037044.642.68$990
Nov 2020937138.772.71$1,353
Oct 2020041036.972.48$1,016
Sep 2020027737.091.99$552
Aug 2020042239.982.39$1,007
Jul 2020040138.371.83$732
Jun 2020039134.901.69$661
May 2020042416.921.81$769
Apr 20201139314.751.80$871
Mar 2020040530.341.86$752
Feb 2020036249.881.98$717
Jan 2020042657.252.09$892
Dec 2019042559.012.30$979
Nov 2019042055.302.75$1,155
Oct 2019048453.472.42$1,171
Sep 2019039355.052.66$1,044
Aug 201906053.112.30$138
Jul 2019046956.272.46$1,154
Jun 201907552.782.49$187
May 20190058.482.74$0
Apr 2019035962.632.75$988
Mar 2019041856.803.06$1,280
Feb 2019038350.852.79$1,069
Jan 20191143546.033.23$1,911
Dec 2018043746.594.19$1,829
Nov 2018143352.934.24$1,888
Oct 2018042961.443.40$1,458
Sep 2018045159.543.11$1,402
Aug 2018046959.403.07$1,438
Jul 2018028465.142.93$833
Jun 2018046160.183.08$1,418
May 20183047665.382.90$3,342
Apr 2018047263.842.90$1,369
Mar 2018050461.222.79$1,405
Feb 2018142761.782.77$1,243
Jan 2018043262.874.01$1,732
Dec 2017048557.272.92$1,417
Nov 2017050655.423.12$1,578
Oct 2017052649.292.98$1,569
Sep 2017051547.523.09$1,590
Aug 2017053645.373.00$1,610
Jul 2017054643.873.09$1,686
Jun 2017054142.493.09$1,670
May 2017056145.373.26$1,831
Apr 2017055547.933.21$1,782
Mar 2017059146.772.98$1,763
Feb 2017052650.452.95$1,553
Jan 2017058949.413.42$2,014
Dec 2016060648.763.72$2,256
Nov 2016058742.492.64$1,552
Oct 2016062746.193.09$1,938
Sep 2016060541.553.10$1,876
Aug 2016062841.442.92$1,836
Jul 2016063941.622.92$1,869
Jun 2016062645.352.69$1,681
May 20161366042.521.99$1,867
Apr 2016060436.561.99$1,203
Mar 2016062733.011.79$1,125
Feb 2016060126.472.06$1,240
Jan 2016053427.352.36$1,263
Dec 2015062432.362.00$1,249
Nov 2015060438.792.17$1,309
Oct 2015064543.552.43$1,565
Sep 2015063942.992.76$1,763
Aug 20151568740.162.87$2,576
Jul 2015070648.152.95$2,079
Jun 2015073156.152.88$2,107
May 2015080455.212.96$2,376
Apr 2015079349.822.71$2,146
Mar 2015081342.892.93$2,386
Feb 2015075744.662.98$2,253
Jan 2015065443.433.10$2,028
Dec 2014070554.693.59$2,532
Nov 2014066470.464.25$2,823
Oct 2014078178.303.90$3,047
Sep 2014080986.164.05$3,273
Aug 2014075689.394.04$3,051
Jul 2014073696.564.18$3,076
Jun 2014066098.164.74$3,126
May 2014075894.734.73$3,583
Apr 2014090395.944.81$4,343
Mar 2014092195.895.06$4,657
Feb 2014094197.406.19$5,827
Jan 2014099990.404.86$4,856
Dec 2013096691.824.35$4,206
Nov 201301,00788.853.74$3,764
Oct 201301,12297.423.78$4,240
Sep 201301,046104.113.72$3,889
Aug 201301,124104.253.52$3,959
Jul 201301,172102.523.72$4,357
Jun 201301,12194.403.93$4,409
May 201301,21794.834.15$5,049
Apr 201301,14893.964.28$4,916
Mar 201301,32393.623.91$5,177
Feb 201301,10891.233.42$3,789
Jan 201301,25391.603.42$4,285
Dec 201201,38186.773.42$4,723
Nov 201201,42586.953.62$5,166
Oct 201201,65589.383.40$5,626
Sep 201201,57994.672.92$4,608
Aug 201201,70392.662.91$4,953
Jul 201201,89985.133.02$5,737
Jun 201201,86679.822.52$4,701
May 201202,14791.612.49$5,342
Apr 201202,394101.652.00$4,780
Mar 20120740105.052.22$1,644
Feb 20120347101.102.57$892
Jan 201202,10998.092.73$5,766
Dec 201102,27696.873.24$7,374
Nov 201101,90595.723.31$6,308
Oct 201102,22884.983.65$8,129
Sep 201101,99583.623.99$7,952
Aug 201102,42983.404.15$10,079
Jul 201102,40694.144.52$10,868
Jun 201102,35592.904.64$10,927
May 201102,55598.134.40$11,254
Apr 201102,550105.964.33$11,050
Mar 201102,69196.364.06$10,918
Feb 201102,44085.644.18$10,199
Jan 201103,02286.504.59$13,867
Dec 201001,96385.734.35$8,535
Nov 201003,08680.843.80$11,712
Oct 201003,24878.103.51$11,397
Sep 201003,45872.633.98$13,761
Aug 201004,00873.684.42$17,713
Jul 201004,22872.554.74$20,026
Jun 201004,09370.364.91$20,098
May 201004,57871.124.24$19,389
Apr 201024,62881.694.12$19,243
Mar 201005,40678.394.39$23,725
Feb 201005,05073.585.44$27,484
Jan 201005,68074.365.96$33,876
Dec 200906,18871.445.48$33,933
Nov 200906,67474.593.75$25,038
Oct 200907,51472.544.11$30,884
Sep 200907,75265.543.06$23,758
Aug 200909,04967.423.22$29,124
Jul 200909,50561.133.46$32,930
Jun 200909,73766.163.90$37,926
May 2009011,16754.743.93$43,839
Apr 2009013,15146.773.59$47,179
Mar 2009010,54242.144.06$42,790
Feb 2009010,40232.814.63$48,192
Jan 2009012,15635.865.37$65,290
Dec 2008013,23337.105.98$79,095
Nov 2008014,80455.496.86$101,561
Oct 2008015,87675.246.92$109,893
Sep 2008016,166101.767.88$127,341
Aug 2008020,317114.228.48$172,350
Jul 2008016,066131.0811.39$182,983
Jun 200801,252131.3313.03$16,317
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 200502043.166.32$126
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
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 2003011826.595.97$705
Apr 2003030126.675.41$1,628
Mar 2003023931.146.10$1,457
Feb 20030033.487.93$0
Jan 2003030030.315.58$1,675
Dec 2002055626.914.85$2,699
Nov 2002091124.664.14$3,769
Oct 200201,02526.464.23$4,335
Sep 200201,41027.443.64$5,126
Aug 200201,53225.963.16$4,847
Jul 200201,51024.583.06$4,623
Jun 200201,69623.733.34$5,662
May 200201,54224.663.58$5,527
Apr 200201,44723.653.51$5,082
Mar 200201,73322.003.10$5,377
Feb 2002084818.222.38$2,015
Jan 200201,36017.172.38$3,231
Dec 200101,16016.932.36$2,743
Nov 200101,80318.072.41$4,337
Oct 200101,74519.782.53$4,413
Sep 200101,67424.262.25$3,769
Aug 200101,63624.873.05$4,995
Jul 200101,85023.933.20$5,915
Jun 200101,65724.563.82$6,337
May 200101,73125.524.31$7,456
Apr 200101,63024.685.34$8,697
Mar 200101,45724.545.38$7,833
Feb 200101,22527.755.77$7,065
Jan 200101,23727.478.40$10,389
Dec 200001,36926.889.12$12,489
Nov 200001,68132.215.66$9,511
Oct 200001,92831.235.15$9,921
Sep 200002,03031.875.19$10,529
Aug 200002,17129.644.54$9,858
Jul 200002,25228.534.09$9,210
Jun 200002,18429.304.40$9,604
May 200002,18927.263.68$8,055
Apr 200002,19424.513.12$6,837
Mar 200002,25628.422.86$6,452
Feb 200002,05627.622.73$5,606
Jan 200002,05825.272.48$5,105
Dec 199902,00824.282.42$4,867
Nov 199901,98223.192.43$4,824
Oct 199902,20920.982.80$6,193
Sep 199902,02321.752.62$5,298
Aug 199902,16119.262.88$6,214
Jul 199902,03817.892.37$4,835
Jun 199902,10515.942.36$4,972
May 199902,25915.792.32$5,243
Apr 199902,16415.102.21$4,778
Mar 199902,55412.471.84$4,695
Feb 199902,4109.981.82$4,381
Jan 199902,26710.381.90$4,307
Dec 199801,8839.201.77$3,339
Nov 199801,88310.892.19$4,116
Oct 199802,46412.421.97$4,852
Sep 199801,84412.592.08$3,840
Aug 199802,59311.301.91$4,946
Jul 199802,29111.742.24$5,126
Jun 199802,61811.242.24$5,857
May 199802,65412.622.21$5,856
Apr 199801,91613.042.51$4,800
Mar 199802,05112.802.31$4,737
Feb 199801,51513.952.30$3,483
Jan 199802,04514.702.15$4,407
Dec 199701,36816.322.41$3,298
Nov 199701,44518.193.09$4,463
Oct 199701,48519.253.15$4,677
Sep 199701,39617.742.95$4,125
Aug 199701,43117.862.55$3,656
Jul 199701,41117.582.25$3,170
Jun 199701,23417.242.26$2,785
May 199701,40318.972.31$3,239
Apr 199701,55217.882.08$3,232
Mar 199701,41218.951.94$2,738
Feb 199701,23620.492.21$2,726
Jan 199702,05823.483.54$7,285
Dec 199601,94323.32$0
Nov 199601,47021.97$0
Oct 199601,78823.31$0
Sep 199601,90222.22$0
Aug 199601,74420.26$0
Jul 199601,80219.55$0
Jun 199601,90018.73$0
May 199601,99219.43$0
Apr 199602,04121.51$0
Mar 199601,94819.38$0
Feb 199601,80116.98$0
Jan 199602,18617.07$0
Dec 199501,52617.19$0
Nov 199502,25016.00$0
Oct 199502,32115.43$0
Sep 199502,01016.18$0
Aug 199501,79515.92$0
Jul 199502,31015.24$0
Jun 199502,12416.41$0
May 199502,47717.56$0
Apr 199502,85617.73$0
Mar 199502,17916.44$0
Feb 1995047216.58$0
Jan 1995025915.92$0
Dec 1994096015.03$0
Nov 1994083115.90$0
Oct 199401,06615.58$0
Sep 199401,15915.29$0
Aug 199401,21716.13$0
Jul 199401,40117.56$0
Jun 199401,25117.09$0
May 199401,59815.88$0
Apr 199401,40014.14$0
Mar 199401,47412.46$0
Feb 199401,08812.50$0
Jan 199401,03312.66$0
Dec 199301,19712.33$0
Nov 199301,25814.49$0
Oct 199301,76815.85$0
Sep 199301,92515.03$0
Aug 199302,01515.66$0
Jul 199302,05415.46$0
Jun 199301,99516.79$0
May 199302,21017.68$0
Apr 199302,13118.05$0
Mar 199302,10718.14$0
Feb 199302,02717.90$0
Jan 199302,33816.93$0

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.

May 2026 — as filed, then multipliedworked
Condensate             0 bbl  × $106.41 =         $0
Gas                  266 Mcf  × $  3.05 =       $810

────────────────────────────────────────────────────
Month total                                     $810

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/G/79271 is the state's own key, not one this site invented.