MAYFIELD 40

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

Gas lease lease 230304District 7CField 812673332 tax incentive programmesCondensateGasSaveExport
Value, all time
$1.4 M
Sep 2005 – May 2026
Value, last 12 filed months
$12 k
at the published price for each month
Months reported
249
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 6,629 leases and 6,629 wells, and the rule below applies to all of them.

Discovered
1967-07-01
as the register files it
Field class
Gas
the register's own label
Between wells
1,000 ft
minimum
From a lease line
500 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 2003-06-24.

The Commission's schedule remark for this field reads: FIELD PER ORDER 7C-0234582 6/2403

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
High Cost Gas112008-01-28168249
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
CondensateDisposition146 bbl$10,201
GasProduction218,281 Mcf$1,419,963
Total$1,430,164

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 30.5678, -100.8033. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

30.56785, -100.80332 · 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
8,400 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 8,400 ft.

Completions filed
Oct 2005
1 of 1 wells

1 well

42-4353746719D8,400 ftOct 2005

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 (249)

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

249 months

May 20260268106.413.05$816
Apr 2026025698.932.87$735
Mar 2026026689.753.15$838
Feb 2026023563.503.75$881
Jan 2026025859.138.00$2,063
Dec 2025025656.664.41$1,130
Nov 2025025458.593.93$997
Oct 2025025959.383.30$856
Sep 2025025762.743.08$791
Aug 2025026863.933.01$808
Jul 2025026366.743.32$872
Jun 2025025666.483.13$801
May 2025026160.553.23$844
Apr 2025025462.363.54$900
Mar 2025025567.704.27$1,088
Feb 2025023270.884.34$1,007
Jan 2025025874.324.28$1,104
Dec 2024025868.993.12$805
Nov 2024024569.052.20$539
Oct 2024025671.372.28$584
Sep 2024024369.612.36$575
Aug 2024024875.632.06$512
Jul 2024024079.932.15$515
Jun 2024022678.082.63$595
May 2024023678.812.20$519
Apr 2024023784.451.66$393
Mar 2024025080.301.55$386
Feb 2024024076.091.78$428
Jan 2024025873.023.30$851
Dec 2023026171.262.61$681
Nov 2023024777.892.81$693
Oct 2023026085.443.09$803
Sep 2023025189.042.74$687
Aug 2023025980.522.67$692
Jul 2023026474.852.64$697
Jun 2023025668.962.26$578
May 2023026770.622.23$595
Apr 2023026078.122.24$582
Mar 2023027872.852.39$665
Feb 2023025775.112.47$634
Jan 2023028376.533.39$959
Dec 2022028076.415.73$1,604
Nov 2022027985.005.65$1,575
Oct 2022028587.185.86$1,671
Sep 2022027584.888.16$2,245
Aug 2022028694.529.13$2,610
Jul 20220289101.587.54$2,180
Jun 20220280115.097.98$2,234
May 20220291109.378.43$2,454
Apr 20220284104.226.84$1,942
Mar 20220296108.885.08$1,503
Feb 2022027091.054.86$1,312
Jan 2022030181.844.54$1,366
Dec 2021030271.323.90$1,178
Nov 2021029577.435.24$1,545
Oct 2021030179.795.71$1,720
Sep 2021030069.865.35$1,605
Aug 2021031166.024.22$1,313
Jul 2021031370.783.98$1,246
Jun 2021030569.493.38$1,031
May 2021031963.483.02$963
Apr 2021031560.362.76$869
Mar 2021038361.302.72$1,041
Feb 2021019757.805.55$1,093
Jan 2021032250.412.81$905
Dec 2020032344.642.68$864
Nov 2020031838.772.71$861
Oct 2020032936.972.48$815
Sep 2020031637.091.99$629
Aug 2020034039.982.39$811
Jul 2020033838.371.83$617
Jun 2020032934.901.69$556
May 2020034816.921.81$632
Apr 2020035014.751.80$632
Mar 2020034930.341.86$648
Feb 2020033649.881.98$666
Jan 2020036257.252.09$758
Dec 2019036759.012.30$846
Nov 2019036055.302.75$990
Oct 2019042153.472.42$1,018
Sep 2019056955.052.66$1,512
Aug 2019040453.112.30$931
Jul 2019041856.272.46$1,028
Jun 2019039552.782.49$984
May 2019042058.482.74$1,151
Apr 2019041062.632.75$1,128
Mar 2019043756.803.06$1,338
Feb 2019040750.852.79$1,136
Jan 2019046246.033.23$1,491
Dec 2018046246.594.19$1,934
Nov 2018045652.934.24$1,932
Oct 2018047961.443.40$1,628
Sep 2018047959.543.11$1,489
Aug 2018050459.403.07$1,546
Jul 2018052065.142.93$1,525
Jun 2018051960.183.08$1,597
May 2018055465.382.90$1,607
Apr 2018055463.842.90$1,607
Mar 2018059861.222.79$1,667
Feb 2018056761.782.77$1,568
Jan 2018066662.874.01$2,670
Dec 2017075157.272.92$2,194
Nov 2017061255.423.12$1,908
Oct 201702149.292.98$63
Sep 201702247.523.09$68
Aug 201702545.373.00$75
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 201701347.933.21$42
Mar 201701846.772.98$54
Feb 201702150.452.95$62
Jan 201702849.413.42$96
Dec 20160748.763.72$26
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160641.553.10$19
Aug 20161041.442.92$41
Jul 20160141.622.92$3
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 20160627.352.36$14
Dec 201501032.362.00$20
Nov 20150838.792.17$17
Oct 20152843.552.43$107
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150448.152.95$12
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20151049.822.71$50
Mar 2015024742.892.93$725
Feb 2015027444.662.98$815
Jan 20150043.433.10$0
Dec 20140254.693.59$7
Nov 20141070.464.25$70
Oct 20140978.303.90$35
Sep 2014035086.164.05$1,416
Aug 2014046989.394.04$1,892
Jul 2014248696.564.18$2,224
Jun 2014047698.164.74$2,255
May 2014049594.734.73$2,340
Apr 2014048495.944.81$2,328
Mar 2014253195.895.06$2,877
Feb 2014048197.406.19$2,978
Jan 2014154290.404.86$2,725
Dec 2013259791.824.35$2,783
Nov 2013262188.853.74$2,499
Oct 2013252997.423.78$2,194
Sep 20130784104.113.72$2,915
Aug 20130519104.253.52$1,828
Jul 201301,193102.523.72$4,435
Jun 2013041894.403.93$1,644
May 2013045094.834.15$1,867
Apr 2013158093.964.28$2,578
Mar 2013062993.623.91$2,461
Feb 2013044891.233.42$1,532
Jan 2013256191.603.42$2,102
Dec 2012064386.773.42$2,199
Nov 2012047386.953.62$1,715
Oct 2012156789.383.40$2,017
Sep 2012068594.672.92$1,999
Aug 2012074992.662.91$2,178
Jul 2012065785.133.02$1,985
Jun 2012054779.822.52$1,378
May 2012056191.612.49$1,396
Apr 20120574101.652.00$1,146
Mar 20122642105.052.22$1,637
Feb 20122832101.102.57$2,341
Jan 2012090298.092.73$2,466
Dec 2011285596.873.24$2,964
Nov 2011286495.723.31$3,052
Oct 2011089984.983.65$3,280
Sep 2011088383.623.99$3,519
Aug 2011090783.404.15$3,763
Jul 2011090194.144.52$4,070
Jun 2011091592.904.64$4,245
May 201121,01798.134.40$4,676
Apr 201101,057105.964.33$4,580
Mar 201101,11296.364.06$4,512
Feb 2011291585.644.18$3,996
Jan 2011088686.504.59$4,066
Dec 2010098385.734.35$4,274
Nov 2010089780.843.80$3,404
Oct 2010195178.103.51$3,415
Sep 2010093072.633.98$3,701
Aug 2010088573.684.42$3,911
Jul 2010299672.554.74$4,863
Jun 201001,01870.364.91$4,999
May 201001,09371.124.24$4,629
Apr 201001,05681.694.12$4,354
Mar 201021,10678.394.39$5,011
Feb 2010299773.585.44$5,573
Jan 201021,12674.365.96$6,864
Dec 200911,14471.445.48$6,345
Nov 200921,12574.593.75$4,370
Oct 200901,01272.544.11$4,160
Sep 200901,17765.543.06$3,607
Aug 200921,32667.423.22$4,403
Jul 200901,32861.133.46$4,601
Jun 200921,27366.163.90$5,091
May 200901,28054.743.93$5,025
Apr 200911,29046.773.59$4,675
Mar 200941,41742.144.06$5,920
Feb 200911,30632.814.63$6,084
Jan 200921,53935.865.37$8,338
Dec 200821,58137.105.98$9,524
Nov 200821,56455.496.86$10,841
Oct 200801,65875.246.92$11,477
Sep 200801,624101.767.88$12,792
Aug 200801,731114.228.48$14,684
Jul 200821,799131.0811.39$20,752
Jun 200801,773131.3313.03$23,107
May 200802,008123.1711.57$23,241
Apr 200831,994110.3110.45$21,178
Mar 200802,100101.909.66$20,295
Feb 200832,03792.538.77$18,143
Jan 200832,10490.388.21$17,536
Dec 200732,12688.337.30$15,789
Nov 200702,13391.677.29$15,553
Oct 200732,28982.856.92$16,093
Sep 200702,26775.846.24$14,156
Aug 200702,52069.066.39$16,098
Jul 200732,65170.906.39$17,147
Jun 200702,67762.007.55$20,207
May 200732,91358.747.85$23,032
Apr 200702,75159.617.81$21,472
Mar 200732,91056.927.30$21,419
Feb 200732,81655.108.22$23,302
Jan 200753,06350.306.73$20,856
Dec 200633,27856.656.92$22,849
Nov 200653,22154.207.62$24,807
Oct 200623,48154.906.01$21,044
Sep 200633,48860.085.04$17,750
Aug 200603,84268.717.34$28,200
Jul 200633,84569.376.34$24,596
Jun 200633,87466.286.38$24,930
May 200654,15366.016.42$27,013
Apr 200624,38864.397.36$32,427
Mar 200664,66456.707.08$33,375
Feb 200674,38357.597.75$34,376
Jan 200665,11260.598.93$46,031
Dec 200576,18654.9413.42$83,372
Nov 200507,45854.6910.59$78,968
Oct 200509,62758.3413.80$132,812
Sep 200501,17761.4512.08$14,217

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                  268 Mcf  × $  3.05 =       $816

────────────────────────────────────────────────────
Month total                                     $816

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/230304 is the state's own key, not one this site invented.