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 79274District 7CField 56267250CondensateGasSaveExport
Value, all time
$476 k
Jan 1993 – May 2026
Value, last 12 filed months
$5 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
CondensateDisposition46 bbl$2,215
GasProduction164,752 Mcf$474,060
Total$476,275

46,767 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 20260127106.413.05$387
Apr 2026010198.932.87$290
Mar 2026013289.753.15$416
Feb 2026012163.503.75$454
Jan 2026011459.138.00$912
Dec 2025013656.664.41$600
Nov 202507958.593.93$310
Oct 202506459.383.30$212
Sep 2025012362.743.08$378
Aug 2025013963.933.01$419
Jul 2025014166.743.32$467
Jun 2025010166.483.13$316
May 2025010660.553.23$343
Apr 202506962.363.54$244
Mar 202509267.704.27$393
Feb 202508270.884.34$356
Jan 202508174.324.28$347
Dec 202407968.993.12$247
Nov 2024011469.052.20$251
Oct 202408671.372.28$196
Sep 202408669.612.36$203
Aug 202407075.632.06$144
Jul 2024012179.932.15$260
Jun 2024011278.082.63$295
May 2024012578.812.20$275
Apr 202408684.451.66$143
Mar 202409180.301.55$141
Feb 202409576.091.78$169
Jan 2024011473.023.30$376
Dec 2023014071.262.61$366
Nov 2023013977.892.81$390
Oct 202309585.443.09$293
Sep 2023014489.042.74$394
Aug 2023014580.522.67$388
Jul 2023014774.852.64$388
Jun 2023014668.962.26$330
May 2023016570.622.23$368
Apr 2023016378.122.24$365
Mar 2023015672.852.39$373
Feb 2023014175.112.47$348
Jan 2023015276.533.39$515
Dec 2022013576.415.73$773
Nov 2022014785.005.65$830
Oct 2022013787.185.86$803
Sep 2022016684.888.16$1,355
Aug 2022016894.529.13$1,533
Jul 20220140101.587.54$1,056
Jun 20220160115.097.98$1,276
May 20220169109.378.43$1,425
Apr 20220156104.226.84$1,067
Mar 20220161108.885.08$817
Feb 2022011591.054.86$559
Jan 2022015081.844.54$681
Dec 2021015971.323.90$620
Nov 2021015977.435.24$833
Oct 2021015079.795.71$857
Sep 202107569.865.35$401
Aug 2021017666.024.22$743
Jul 2021017870.783.98$709
Jun 2021017269.493.38$581
May 2021117163.483.02$580
Apr 2021018060.362.76$497
Mar 2021020161.302.72$546
Feb 2021011757.805.55$649
Jan 2021017650.412.81$495
Dec 2020018344.642.68$490
Nov 2020419538.772.71$683
Oct 2020017436.972.48$431
Sep 2020015137.091.99$301
Aug 2020022839.982.39$544
Jul 2020021938.371.83$400
Jun 2020021534.901.69$363
May 2020023316.921.81$423
Apr 2020521914.751.80$469
Mar 2020021930.341.86$407
Feb 2020020249.881.98$400
Jan 2020023457.252.09$490
Dec 2019022659.012.30$521
Nov 2019021155.302.75$580
Oct 2019021753.472.42$525
Sep 2019010555.052.66$279
Aug 201902653.112.30$60
Jul 2019014256.272.46$349
Jun 201902152.782.49$52
May 20190058.482.74$0
Apr 2019021762.632.75$597
Mar 2019024856.803.06$759
Feb 2019021150.852.79$589
Jan 2019626646.033.23$1,135
Dec 2018025546.594.19$1,067
Nov 2018025152.934.24$1,064
Oct 2018023161.443.40$785
Sep 2018024759.543.11$768
Aug 2018018859.403.07$577
Jul 2018015865.142.93$463
Jun 2018025760.183.08$791
May 20181625965.382.90$1,797
Apr 2018026863.842.90$777
Mar 2018023261.222.79$647
Feb 2018120761.782.77$634
Jan 2018018962.874.01$758
Dec 2017022357.272.92$652
Nov 2017024955.423.12$776
Oct 2017026649.292.98$794
Sep 2017026247.523.09$809
Aug 2017026945.373.00$808
Jul 2017027543.873.09$849
Jun 2017026842.493.09$827
May 2017027045.373.26$881
Apr 2017026647.933.21$854
Mar 2017029046.772.98$865
Feb 2017027850.452.95$821
Jan 2017030449.413.42$1,039
Dec 2016027748.763.72$1,031
Nov 2016028742.492.64$759
Oct 2016029746.193.09$918
Sep 2016029341.553.10$908
Aug 2016030141.442.92$880
Jul 2016029641.622.92$866
Jun 2016027445.352.69$736
May 2016730342.521.99$901
Apr 2016029336.561.99$583
Mar 2016030433.011.79$545
Feb 2016027926.472.06$576
Jan 2016032827.352.36$776
Dec 2015032532.362.00$650
Nov 2015029538.792.17$639
Oct 2015030843.552.43$747
Sep 2015029942.992.76$825
Aug 2015631040.162.87$1,131
Jul 2015030448.152.95$895
Jun 2015030856.152.88$888
May 2015033855.212.96$999
Apr 2015033049.822.71$893
Mar 2015033042.892.93$968
Feb 2015031144.662.98$926
Jan 2015032643.433.10$1,011
Dec 2014034954.693.59$1,253
Nov 2014037070.464.25$1,573
Oct 2014034878.303.90$1,358
Sep 2014034686.164.05$1,400
Aug 201401,33789.394.04$5,395
Jul 2014099396.564.18$4,150
Jun 2014061798.164.74$2,923
May 2014052894.734.73$2,496
Apr 2014036495.944.81$1,751
Mar 2014040195.895.06$2,028
Feb 2014026997.406.19$1,666
Jan 2014029590.404.86$1,434
Dec 2013040391.824.35$1,755
Nov 2013036488.853.74$1,361
Oct 2013039497.423.78$1,489
Sep 20130292104.113.72$1,086
Aug 20130208104.253.52$733
Jul 2013063102.523.72$234
Jun 2013021694.403.93$850
May 2013022994.834.15$950
Apr 2013033993.964.28$1,452
Mar 2013035993.623.91$1,405
Feb 2013035291.233.42$1,204
Jan 2013039191.603.42$1,337
Dec 2012038086.773.42$1,300
Nov 2012036586.953.62$1,323
Oct 2012039789.383.40$1,350
Sep 2012035994.672.92$1,048
Aug 2012036392.662.91$1,056
Jul 2012038485.133.02$1,160
Jun 2012037579.822.52$945
May 2012039591.612.49$983
Apr 20120390101.652.00$779
Mar 2012050105.052.22$111
Feb 2012070101.102.57$180
Jan 2012042798.092.73$1,167
Dec 2011042696.873.24$1,380
Nov 2011030295.723.31$1,000
Oct 2011042384.983.65$1,543
Sep 2011032583.623.99$1,295
Aug 2011042983.404.15$1,780
Jul 2011042394.144.52$1,911
Jun 2011045392.904.64$2,102
May 2011051198.134.40$2,251
Apr 20110492105.964.33$2,132
Mar 2011047796.364.06$1,935
Feb 2011045885.644.18$1,914
Jan 2011051586.504.59$2,363
Dec 2010025785.734.35$1,117
Nov 2010052380.843.80$1,985
Oct 2010059578.103.51$2,088
Sep 2010059072.633.98$2,348
Aug 2010061473.684.42$2,713
Jul 2010061972.554.74$2,932
Jun 2010077970.364.91$3,825
May 2010083671.124.24$3,541
Apr 2010062581.694.12$2,577
Mar 2010045978.394.39$2,014
Feb 2010043473.585.44$2,362
Jan 2010048274.365.96$2,875
Dec 2009050171.445.48$2,747
Nov 2009054674.593.75$2,048
Oct 2009056672.544.11$2,326
Sep 2009052765.543.06$1,615
Aug 2009049467.423.22$1,590
Jul 2009046761.133.46$1,618
Jun 2009046866.163.90$1,823
May 2009044154.743.93$1,731
Apr 2009043046.773.59$1,543
Mar 2009048942.144.06$1,985
Feb 2009041532.814.63$1,923
Jan 2009044835.865.37$2,406
Dec 2008045537.105.98$2,720
Nov 2008046055.496.86$3,156
Oct 2008035875.246.92$2,478
Sep 20080385101.767.88$3,033
Aug 20080440114.228.48$3,733
Jul 20080365131.0811.39$4,157
Jun 20080298131.3313.03$3,884
May 20080365123.1711.57$4,225
Apr 20080378110.3110.45$3,952
Mar 20080412101.909.66$3,982
Feb 2008044992.538.77$3,938
Jan 2008042990.388.21$3,520
Dec 2007043288.337.30$3,154
Nov 2007027191.677.29$1,976
Oct 2007029082.856.92$2,007
Sep 2007031175.846.24$1,942
Aug 2007035069.066.39$2,236
Jul 2007033570.906.39$2,140
Jun 2007025362.007.55$1,910
May 2007010758.747.85$840
Apr 2007022559.617.81$1,756
Mar 2007022456.927.30$1,636
Feb 2007019755.108.22$1,619
Jan 2007030950.306.73$2,079
Dec 2006035456.656.92$2,449
Nov 2006027954.207.62$2,125
Oct 2006015754.906.01$944
Sep 2006019760.085.04$992
Aug 2006020668.717.34$1,512
Jul 2006023969.376.34$1,516
Jun 2006022866.286.38$1,456
May 2006023566.016.42$1,510
Apr 2006021164.397.36$1,553
Mar 2006021056.707.08$1,487
Feb 2006017957.597.75$1,387
Jan 2006020560.598.93$1,831
Dec 2005021854.9413.42$2,925
Nov 2005019054.6910.59$2,012
Oct 2005022058.3413.80$3,035
Sep 2005021761.4512.08$2,621
Aug 2005022961.519.80$2,243
Jul 2005022855.697.84$1,788
Jun 2005022552.337.38$1,661
May 2005022845.226.65$1,516
Apr 2005023149.207.36$1,700
Mar 2005025850.377.15$1,846
Feb 2005023545.226.31$1,483
Jan 2005028943.166.32$1,827
Dec 2004034439.866.75$2,322
Nov 2004024145.286.33$1,526
Oct 2004018049.706.52$1,173
Sep 2004011443.245.28$602
Aug 2004011542.375.55$638
Jul 2004012538.286.08$761
Jun 2004012936.106.43$830
May 2004014837.486.49$961
Apr 2004015834.475.86$926
Mar 2004016834.365.53$929
Feb 2004014832.455.51$815
Jan 2004018432.036.30$1,159
Dec 2003022330.266.30$1,405
Nov 2003021628.804.60$993
Oct 2003026228.174.76$1,247
Sep 2003039726.314.75$1,886
Aug 2003041329.765.13$2,119
Jul 2003044529.415.17$2,301
Jun 2003053328.565.98$3,189
May 2003044826.595.97$2,676
Apr 2003038026.675.41$2,055
Mar 2003053331.146.10$3,249
Feb 2003031233.487.93$2,473
Jan 2003062730.315.58$3,500
Dec 2002051326.914.85$2,490
Nov 2002035924.664.14$1,485
Oct 2002034926.464.23$1,476
Sep 2002080827.443.64$2,937
Aug 200201625.963.16$51
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 200201024.663.58$36
Apr 2002027923.653.51$980
Mar 2002039222.003.10$1,216
Feb 2002014618.222.38$347
Jan 2002028317.172.38$672
Dec 2001028916.932.36$683
Nov 2001039518.072.41$950
Oct 2001043919.782.53$1,110
Sep 2001034524.262.25$777
Aug 2001032524.873.05$992
Jul 2001038423.933.20$1,228
Jun 2001031624.563.82$1,208
May 2001036925.524.31$1,589
Apr 2001035624.685.34$1,899
Mar 2001041824.545.38$2,247
Feb 2001032127.755.77$1,851
Jan 2001025427.478.40$2,133
Dec 2000029726.889.12$2,709
Nov 2000044032.215.66$2,490
Oct 2000033431.235.15$1,719
Sep 2000036131.875.19$1,872
Aug 2000037029.644.54$1,680
Jul 2000036828.534.09$1,505
Jun 2000048329.304.40$2,124
May 2000033827.263.68$1,244
Apr 2000055124.513.12$1,717
Mar 2000057328.422.86$1,639
Feb 2000057427.622.73$1,565
Jan 2000070125.272.48$1,739
Dec 1999063824.282.42$1,546
Nov 1999048623.192.43$1,183
Oct 1999069820.982.80$1,957
Sep 1999061821.752.62$1,618
Aug 1999064619.262.88$1,858
Jul 1999062817.892.37$1,490
Jun 1999070115.942.36$1,656
May 1999081415.792.32$1,889
Apr 1999083815.102.21$1,850
Mar 1999094112.471.84$1,730
Feb 199908219.981.82$1,492
Jan 1999088410.381.90$1,680
Dec 199807909.201.77$1,401
Nov 1998083310.892.19$1,821
Oct 1998087312.421.97$1,719
Sep 1998076512.592.08$1,593
Aug 199801,01211.301.91$1,930
Jul 1998087811.742.24$1,964
Jun 1998078011.242.24$1,745
May 1998040912.622.21$902
Apr 199807913.042.51$198
Mar 1998020612.802.31$476
Feb 1998020613.952.30$474
Jan 1998079914.702.15$1,722
Dec 199701,01116.322.41$2,438
Nov 1997094018.193.09$2,903
Oct 1997089119.253.15$2,806
Sep 1997082517.742.95$2,438
Aug 1997086017.862.55$2,197
Jul 1997084717.582.25$1,903
Jun 1997074017.242.26$1,670
May 1997084218.972.31$1,944
Apr 1997093117.882.08$1,939
Mar 1997085018.951.94$1,648
Feb 1997081420.492.21$1,796
Jan 199701,22723.483.54$4,343
Dec 1996090423.32$0
Nov 1996087621.97$0
Oct 1996090723.31$0
Sep 1996088722.22$0
Aug 1996078320.26$0
Jul 1996093219.55$0
Jun 1996077618.73$0
May 1996081319.43$0
Apr 1996069121.51$0
Mar 1996080619.38$0
Feb 1996067016.98$0
Jan 1996079717.07$0
Dec 1995067517.19$0
Nov 1995093816.00$0
Oct 1995076515.43$0
Sep 1995095116.18$0
Aug 199501,14815.92$0
Jul 199501,12915.24$0
Jun 199501,04916.41$0
May 199501,29717.56$0
Apr 199501,46417.73$0
Mar 1995093016.44$0
Feb 1995052716.58$0
Jan 1995069715.92$0
Dec 1994076515.03$0
Nov 1994082115.90$0
Oct 1994092515.58$0
Sep 1994087615.29$0
Aug 1994096516.13$0
Jul 1994086517.56$0
Jun 1994096417.09$0
May 1994084115.88$0
Apr 1994093614.14$0
Mar 1994092112.46$0
Feb 1994090712.50$0
Jan 1994096612.66$0
Dec 199301,05312.33$0
Nov 199301,15514.49$0
Oct 199301,17215.85$0
Sep 199301,36615.03$0
Aug 199301,30215.66$0
Jul 199301,04115.46$0
Jun 199301,15916.79$0
May 199301,23217.68$0
Apr 199301,19918.05$0
Mar 199301,30818.14$0
Feb 199301,12517.90$0
Jan 199301,49116.93$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                  127 Mcf  × $  3.05 =       $387

────────────────────────────────────────────────────
Month total                                     $387

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/79274 is the state's own key, not one this site invented.