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 213151District 7CField 812673332 tax incentive programmesCondensateGasSaveExport
Value, all time
$1.3 M
May 2005 – May 2026
Value, last 12 filed months
$11 k
at the published price for each month
Months reported
253
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 Gas112006-07-31164604
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
CondensateDisposition194 bbl$13,249
GasProduction225,394 Mcf$1,309,250
Total$1,322,499

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 30.5689, -100.8100. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

30.56891, -100.81002 · 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
8,500 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 8,500 ft.

Completions filed
May 2005
1 of 1 wells

1 well

42-4353720998,500 ftMay 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 (253)

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

253 months

May 20260281106.413.05$856
Apr 2026030098.932.87$861
Mar 202602989.753.15$91
Feb 2026023263.503.75$870
Jan 2026025559.138.00$2,039
Dec 2025025556.664.41$1,125
Nov 2025025058.593.93$982
Oct 2025026759.383.30$882
Sep 2025025462.743.08$782
Aug 2025026063.933.01$784
Jul 2025025566.743.32$845
Jun 2025022966.483.13$716
May 202508460.553.23$272
Apr 2025026062.363.54$921
Mar 2025026667.704.27$1,135
Feb 2025024370.884.34$1,055
Jan 2025026374.324.28$1,125
Dec 2024035168.993.12$1,096
Nov 2024031169.052.20$684
Oct 2024033371.372.28$760
Sep 2024031569.612.36$745
Aug 2024033175.632.06$683
Jul 2024033779.932.15$723
Jun 2024033978.082.63$893
May 2024024978.812.20$547
Apr 2024031384.451.66$519
Mar 2024032780.301.55$505
Feb 2024031776.091.78$565
Jan 2024034273.023.30$1,128
Dec 2023036071.262.61$940
Nov 2023033977.892.81$952
Oct 2023032985.443.09$1,016
Sep 2023032789.042.74$894
Aug 2023033780.522.67$901
Jul 2023033974.852.64$896
Jun 2023033568.962.26$757
May 2023033770.622.23$751
Apr 2023032678.122.24$730
Mar 2023034872.852.39$833
Feb 2023032075.112.47$789
Jan 2023035876.533.39$1,213
Dec 2022231876.415.73$1,975
Nov 2022134085.005.65$2,005
Oct 2022034687.185.86$2,029
Sep 2022032784.888.16$2,670
Aug 2022034294.529.13$3,121
Jul 20220357101.587.54$2,693
Jun 20220330115.097.98$2,632
May 20220353109.378.43$2,977
Apr 20223343104.226.84$2,658
Mar 20220357108.885.08$1,812
Feb 2022031091.054.86$1,506
Jan 2022034481.844.54$1,561
Dec 2021034671.323.90$1,349
Nov 2021034177.435.24$1,786
Oct 2021035679.795.71$2,034
Sep 2021035669.865.35$1,905
Aug 2021036266.024.22$1,528
Jul 2021038270.783.98$1,521
Jun 2021435969.493.38$1,492
May 2021037663.483.02$1,135
Apr 2021034960.362.76$963
Mar 2021539461.302.72$1,377
Feb 2021026457.805.55$1,465
Jan 2021035750.412.81$1,003
Dec 2020035144.642.68$939
Nov 2020035138.772.71$950
Oct 2020036836.972.48$912
Sep 2020035937.091.99$715
Aug 2020038139.982.39$909
Jul 2020538438.371.83$893
Jun 2020038634.901.69$652
May 2020037216.921.81$675
Apr 2020042914.751.80$774
Mar 2020042430.341.86$787
Feb 2020039849.881.98$788
Jan 2020043057.252.09$901
Dec 2019442959.012.30$1,225
Nov 2019041255.302.75$1,133
Oct 2019041953.472.42$1,013
Sep 2019044955.052.66$1,193
Aug 2019046453.112.30$1,069
Jul 2019047856.272.46$1,176
Jun 2019044452.782.49$1,106
May 2019044858.482.74$1,228
Apr 2019043762.632.75$1,202
Mar 2019046156.803.06$1,412
Feb 2019441650.852.79$1,365
Jan 2019045446.033.23$1,466
Dec 2018044846.594.19$1,875
Nov 2018039752.934.24$1,682
Oct 2018047961.443.40$1,628
Sep 20181354159.543.11$2,455
Aug 2018056159.403.07$1,720
Jul 2018055565.142.93$1,627
Jun 2018054260.183.08$1,668
May 2018256065.382.90$1,755
Apr 20181254463.842.90$2,344
Mar 2018056461.222.79$1,572
Feb 2018049661.782.77$1,372
Jan 2018146562.874.01$1,927
Dec 2017048257.272.92$1,408
Nov 2017047555.423.12$1,481
Oct 2017050449.292.98$1,504
Sep 2017051747.523.09$1,596
Aug 201701,09045.373.00$3,275
Jul 2017050643.873.09$1,562
Jun 2017049142.493.09$1,516
May 2017051445.373.26$1,677
Apr 2017050047.933.21$1,606
Mar 2017051646.772.98$1,540
Feb 2017046150.452.95$1,361
Jan 2017051149.413.42$1,747
Dec 2016051348.763.72$1,910
Nov 2016042742.492.64$1,129
Oct 2016050546.193.09$1,561
Sep 2016049741.553.10$1,541
Aug 2016051341.442.92$1,500
Jul 2016045441.622.92$1,328
Jun 2016051845.352.69$1,391
May 2016049742.521.99$990
Apr 2016163936.561.99$1,309
Mar 2016062833.011.79$1,127
Feb 2016150026.472.06$1,058
Jan 2016045627.352.36$1,078
Dec 2015053032.362.00$1,061
Nov 2015053238.792.17$1,153
Oct 2015167543.552.43$1,681
Sep 2015461942.992.76$1,879
Aug 2015061440.162.87$1,764
Jul 2015165748.152.95$1,983
Jun 2015065556.152.88$1,888
May 2015066455.212.96$1,962
Apr 2015263249.822.71$1,810
Mar 2015063242.892.93$1,855
Feb 2015056744.662.98$1,688
Jan 2015264143.433.10$2,074
Dec 2014064954.693.59$2,331
Nov 2014256270.464.25$2,530
Oct 2014072578.303.90$2,828
Sep 2014071486.164.05$2,888
Aug 2014069989.394.04$2,821
Jul 2014573696.564.18$3,559
Jun 2014071398.164.74$3,377
May 2014070794.734.73$3,342
Apr 2014066495.944.81$3,193
Mar 2014273895.895.06$3,924
Feb 2014466997.406.19$4,532
Jan 2014266490.404.86$3,408
Dec 2013273191.824.35$3,367
Nov 2013074188.853.74$2,770
Oct 2013279397.423.78$3,192
Sep 20130779104.113.72$2,896
Aug 20130790104.253.52$2,783
Jul 20130774102.523.72$2,878
Jun 2013074794.403.93$2,938
May 2013074094.834.15$3,070
Apr 2013274393.964.28$3,370
Mar 2013079793.623.91$3,119
Feb 2013067391.233.42$2,302
Jan 2013284291.603.42$3,063
Dec 2012082086.773.42$2,805
Nov 2012078486.953.62$2,842
Oct 2012279389.383.40$2,875
Sep 2012078994.672.92$2,303
Aug 2012082292.662.91$2,391
Jul 2012082585.133.02$2,492
Jun 2012080479.822.52$2,025
May 2012087791.612.49$2,182
Apr 20120821101.652.00$1,639
Mar 20122859105.052.22$2,119
Feb 20122796101.102.57$2,248
Jan 2012086598.092.73$2,365
Dec 2011284696.873.24$2,935
Nov 2011282895.723.31$2,933
Oct 2011088184.983.65$3,214
Sep 2011084183.623.99$3,352
Aug 2011091583.404.15$3,797
Jul 2011091794.144.52$4,142
Jun 2011096192.904.64$4,459
May 2011298498.134.40$4,531
Apr 201101,219105.964.33$5,282
Mar 2011097596.364.06$3,956
Feb 2011284385.644.18$3,695
Jan 2011095786.504.59$4,391
Dec 201001,02585.734.35$4,456
Nov 201001,00280.843.80$3,803
Oct 201011,05978.103.51$3,794
Sep 201001,02972.633.98$4,095
Aug 201001,03773.684.42$4,583
Jul 201021,01772.554.74$4,962
Jun 201001,05770.364.91$5,190
May 201001,11971.124.24$4,739
Apr 201001,07981.694.12$4,448
Mar 201021,13378.394.39$5,129
Feb 201021,14373.585.44$6,368
Jan 2010292974.365.96$5,689
Dec 200911,14671.445.48$6,356
Nov 200921,11274.593.75$4,321
Oct 200901,16672.544.11$4,793
Sep 200901,16365.543.06$3,564
Aug 200921,22467.423.22$4,074
Jul 200901,16661.133.46$4,040
Jun 200911,11266.163.90$4,397
May 200901,25954.743.93$4,943
Apr 200911,18546.773.59$4,298
Mar 200941,26442.144.06$5,299
Feb 200911,13432.814.63$5,287
Jan 200911,33135.865.37$7,185
Dec 200821,33737.105.98$8,066
Nov 200821,32355.496.86$9,187
Oct 200801,39375.246.92$9,642
Sep 200801,357101.767.88$10,689
Aug 200801,437114.228.48$12,190
Jul 200821,466131.0811.39$16,959
Jun 200801,431131.3313.03$18,650
May 200801,477123.1711.57$17,095
Apr 200821,482110.3110.45$15,715
Mar 200801,530101.909.66$14,786
Feb 200821,48492.538.77$13,201
Jan 200821,64290.388.21$13,655
Dec 200721,65788.337.30$12,276
Nov 200701,65591.677.29$12,068
Oct 200721,75482.856.92$12,307
Sep 200701,67975.846.24$10,484
Aug 200701,73769.066.39$11,096
Jul 200721,84470.906.39$11,921
Jun 200701,79862.007.55$13,572
May 200721,94358.747.85$15,363
Apr 200701,96559.617.81$15,337
Mar 200722,05956.927.30$15,149
Feb 200721,86655.108.22$15,441
Jan 200732,13750.306.73$14,526
Dec 200622,22356.656.92$15,493
Nov 200642,24254.207.62$17,295
Oct 200622,42654.906.01$14,699
Sep 200622,42560.085.04$12,335
Aug 200602,61768.717.34$19,209
Jul 200622,69569.376.34$17,232
Jun 200622,69166.286.38$17,312
May 200642,89766.016.42$18,877
Apr 200623,02364.397.36$22,380
Mar 200643,25056.707.08$23,246
Feb 200653,06757.597.75$24,061
Jan 200643,70560.598.93$33,340
Dec 200543,81554.9413.42$51,400
Nov 200533,70654.6910.59$39,405
Oct 200503,91158.3413.80$53,955
Sep 200504,07461.4512.08$49,210
Aug 200504,47561.519.80$43,841
Jul 200504,47655.697.84$35,108
Jun 200504,39052.337.38$32,403
May 200502,09045.226.65$13,901

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                  281 Mcf  × $  3.05 =       $856

────────────────────────────────────────────────────
Month total                                     $856

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/213151 is the state's own key, not one this site invented.