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 211027District 7CField 812673332 tax incentive programmesCondensateGasSaveExport
Value, all time
$679 k
Jan 2005 – May 2026
Value, last 12 filed months
$5 k
at the published price for each month
Months reported
257
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 Gas112005-11-18160970
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
CondensateDisposition74 bbl$4,578
GasProduction98,529 Mcf$674,106
Total$678,684

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 30.5586, -100.8006. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

30.55856, -100.80062 · 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
Jan 2005
1 of 1 wells

1 well

42-43537051148,500 ftJan 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 (257)

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

257 months

May 20260122106.413.05$372
Apr 2026011698.932.87$333
Mar 2026012589.753.15$394
Feb 2026011063.503.75$413
Jan 2026011959.138.00$952
Dec 2025012256.664.41$538
Nov 2025011858.593.93$463
Oct 2025012159.383.30$400
Sep 2025012162.743.08$372
Aug 2025012063.933.01$362
Jul 2025012266.743.32$404
Jun 2025012166.483.13$379
May 2025011460.553.23$368
Apr 2025012062.363.54$425
Mar 2025011567.704.27$491
Feb 2025010470.884.34$451
Jan 2025011674.324.28$496
Dec 2024011768.993.12$365
Nov 2024011769.052.20$257
Oct 2024013071.372.28$297
Sep 2024012169.612.36$286
Aug 2024011875.632.06$244
Jul 2024011979.932.15$255
Jun 2024011978.082.63$313
May 2024012178.812.20$266
Apr 2024011584.451.66$191
Mar 2024011980.301.55$184
Feb 2024011576.091.78$205
Jan 2024011973.023.30$392
Dec 20230871.262.61$21
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230280.522.67$5
Jul 202302474.852.64$63
Jun 2023010768.962.26$242
May 2023012470.622.23$276
Apr 2023012278.122.24$273
Mar 2023012672.852.39$302
Feb 2023011675.112.47$286
Jan 2023013076.533.39$440
Dec 2022012876.415.73$733
Nov 2022012585.005.65$706
Oct 2022012887.185.86$751
Sep 2022012284.888.16$996
Aug 2022013094.529.13$1,187
Jul 20220128101.587.54$965
Jun 20220126115.097.98$1,005
May 20220130109.378.43$1,096
Apr 20220125104.226.84$855
Mar 20220131108.885.08$665
Feb 2022012391.054.86$598
Jan 2022013081.844.54$590
Dec 2021013471.323.90$522
Nov 2021012877.435.24$670
Oct 2021013279.795.71$754
Sep 2021013169.865.35$701
Aug 2021013466.024.22$566
Jul 2021013770.783.98$546
Jun 2021014169.493.38$477
May 2021012663.483.02$380
Apr 2021013460.362.76$370
Mar 2021014261.302.72$386
Feb 2021013957.805.55$771
Jan 2021013550.412.81$379
Dec 2020014044.642.68$375
Nov 2020013238.772.71$357
Oct 2020014436.972.48$357
Sep 2020012837.091.99$255
Aug 2020013939.982.39$332
Jul 2020014238.371.83$259
Jun 2020013634.901.69$230
May 2020014316.921.81$260
Apr 2020013414.751.80$242
Mar 2020014430.341.86$267
Feb 2020015049.881.98$297
Jan 202009557.252.09$199
Dec 2019014359.012.30$330
Nov 2019013855.302.75$380
Oct 2019015153.472.42$365
Sep 2019017855.052.66$473
Aug 2019014553.112.30$334
Jul 2019014756.272.46$362
Jun 2019014752.782.49$366
May 2019011658.482.74$318
Apr 20190162.632.75$3
Mar 20190156.803.06$3
Feb 20190150.852.79$3
Jan 20190846.033.23$26
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180159.403.07$3
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180163.842.90$3
Mar 20180161.222.79$3
Feb 20180161.782.77$3
Jan 20180162.874.01$4
Dec 201703657.272.92$105
Nov 2017013655.423.12$424
Oct 2017116449.292.98$539
Sep 2017017347.523.09$534
Aug 2017016745.373.00$502
Jul 2017017043.873.09$525
Jun 2017016742.493.09$516
May 2017017445.373.26$568
Apr 2017017147.933.21$549
Mar 2017016946.772.98$504
Feb 2017016250.452.95$478
Jan 2017018149.413.42$619
Dec 2016017348.763.72$644
Nov 2016117442.492.64$503
Oct 2016017746.193.09$547
Sep 2016117241.553.10$575
Aug 2016017441.442.92$509
Jul 2016117841.622.92$562
Jun 2016017145.352.69$459
May 2016017442.521.99$346
Apr 2016116736.561.99$369
Mar 2016017733.011.79$318
Feb 2016016826.472.06$347
Jan 2016018527.352.36$437
Dec 2015018532.362.00$370
Nov 2015018038.792.17$390
Oct 2015019143.552.43$463
Sep 2015017642.992.76$485
Aug 2015018440.162.87$529
Jul 2015018948.152.95$557
Jun 2015018956.152.88$545
May 2015119055.212.96$617
Apr 2015118349.822.71$545
Mar 2015020142.892.93$590
Feb 2015119244.662.98$616
Jan 2015119443.433.10$645
Dec 2014118254.693.59$708
Nov 2014018170.464.25$770
Oct 2014119678.303.90$843
Sep 2014018486.164.05$744
Aug 2014017489.394.04$702
Jul 2014117196.564.18$811
Jun 2014015798.164.74$744
May 2014017394.734.73$818
Apr 2014018195.944.81$870
Mar 201409795.895.06$491
Feb 2014017597.406.19$1,084
Jan 2014019290.404.86$933
Dec 2013019491.824.35$845
Nov 2013018188.853.74$677
Oct 2013017697.423.78$665
Sep 20130158104.113.72$587
Aug 20130163104.253.52$574
Jul 20130165102.523.72$613
Jun 2013012694.403.93$496
May 20130194.834.15$4
Apr 201305593.964.28$236
Mar 2013116493.623.91$735
Feb 2013017691.233.42$602
Jan 2013018691.603.42$636
Dec 201202686.773.42$89
Nov 20120386.953.62$11
Oct 20120189.383.40$3
Sep 20120194.672.92$3
Aug 20120392.662.91$9
Jul 20120385.133.02$9
Jun 20120579.822.52$13
May 20120391.612.49$7
Apr 201204101.652.00$8
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110996.873.24$29
Nov 20110495.723.31$13
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 20110192.904.64$5
May 20110198.134.40$4
Apr 201103105.964.33$13
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100585.734.35$22
Nov 201004280.843.80$159
Oct 201007578.103.51$263
Sep 2010124472.633.98$1,044
Aug 2010030173.684.42$1,330
Jul 2010130872.554.74$1,531
Jun 2010033370.364.91$1,635
May 2010033971.124.24$1,436
Apr 2010029281.694.12$1,204
Mar 2010131978.394.39$1,478
Feb 2010028673.585.44$1,557
Jan 2010223274.365.96$1,532
Dec 2009034071.445.48$1,864
Nov 2009135374.593.75$1,399
Oct 2009037072.544.11$1,521
Sep 2009034765.543.06$1,063
Aug 2009025567.423.22$821
Jul 2009142461.133.46$1,530
Jun 2009043266.163.90$1,683
May 2009138054.743.93$1,547
Apr 2009142346.773.59$1,564
Mar 2009149242.144.06$2,039
Feb 2009245732.814.63$2,183
Jan 2009151735.865.37$2,813
Dec 2008152537.105.98$3,175
Nov 2008152155.496.86$3,630
Oct 2008153475.246.92$3,772
Sep 20081407101.767.88$3,308
Aug 20081621114.228.48$5,382
Jul 20081560131.0811.39$6,509
Jun 20080566131.3313.03$7,376
May 20080411123.1711.57$4,757
Apr 20082496110.3110.45$5,406
Mar 20081510101.909.66$5,031
Feb 2008149692.538.77$4,443
Jan 2008158690.388.21$4,899
Dec 2007157288.337.30$4,265
Nov 2007156491.677.29$4,204
Oct 2007151782.856.92$3,662
Sep 2007151975.846.24$3,317
Aug 2007259869.066.39$3,958
Jul 2007163670.906.39$4,134
Jun 2007063162.007.55$4,763
May 2007071558.747.85$5,610
Apr 2007071459.617.81$5,573
Mar 2007075156.927.30$5,484
Feb 2007065455.108.22$5,373
Jan 2007076850.306.73$5,166
Dec 2006082256.656.92$5,687
Nov 2006181554.207.62$6,262
Oct 2006086554.906.01$5,202
Sep 2006064660.085.04$3,254
Aug 2006069068.717.34$5,065
Jul 2006081069.376.34$5,138
Jun 2006290166.286.38$5,884
May 200601,30566.016.42$8,385
Apr 200601,43064.397.36$10,525
Mar 200601,54956.707.08$10,971
Feb 200621,44457.597.75$11,308
Jan 200601,78060.598.93$15,901
Dec 200501,88354.9413.42$25,261
Nov 200522,27954.6910.59$24,240
Oct 200502,76358.3413.80$38,118
Sep 200522,87961.4512.08$34,898
Aug 200503,26061.519.80$31,938
Jul 200533,49355.697.84$27,565
Jun 200503,58352.337.38$26,446
May 200503,92145.226.65$26,079
Apr 200564,39049.207.36$32,608
Mar 200504,69650.377.15$33,599
Feb 200575,23745.226.31$33,372
Jan 200555,41943.166.32$34,476

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                  122 Mcf  × $  3.05 =       $372

────────────────────────────────────────────────────
Month total                                     $372

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/211027 is the state's own key, not one this site invented.