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 205279District 7CField 812673332 tax incentive programmesCondensateGasSaveExport
Value, all time
$1.5 M
Mar 2004 – May 2026
Value, last 12 filed months
$9 k
at the published price for each month
Months reported
267
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 Gas112005-05-05157936
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
CondensateDisposition273 bbl$17,836
GasProduction248,555 Mcf$1,446,106
Total$1,463,942

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 30.5628, -100.8003. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

30.56276, -100.80031 · 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
Mar 2004
1 of 1 wells

1 well

42-4353666168,500 ftMar 2004

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 (267)

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

267 months

May 20260189106.413.05$576
Apr 2026022198.932.87$634
Mar 2026020189.753.15$633
Feb 2026025863.503.75$968
Jan 2026013659.138.00$1,088
Dec 2025019356.664.41$852
Nov 2025024658.593.93$966
Oct 2025023059.383.30$760
Sep 2025018162.743.08$557
Aug 2025024863.933.01$748
Jul 2025015466.743.32$511
Jun 2025037366.483.13$1,167
May 2025025960.553.23$837
Apr 2025031662.363.54$1,120
Mar 2025036267.704.27$1,545
Feb 2025032670.884.34$1,415
Jan 2025020474.324.28$873
Dec 2024013468.993.12$418
Nov 2024011069.052.20$242
Oct 2024022171.372.28$504
Sep 2024015069.612.36$355
Aug 2024029775.632.06$613
Jul 2024030279.932.15$648
Jun 2024029778.082.63$782
May 2024330478.812.20$905
Apr 2024028184.451.66$466
Mar 2024028980.301.55$447
Feb 2024029076.091.78$517
Jan 2024028273.023.30$930
Dec 2023029571.262.61$770
Nov 2023030577.892.81$856
Oct 2023427285.443.09$1,182
Sep 2023028889.042.74$788
Aug 2023030180.522.67$805
Jul 2023535774.852.64$1,317
Jun 2023042168.962.26$951
May 2023037170.622.23$826
Apr 2023332678.122.24$964
Mar 2023035672.852.39$852
Feb 2023033575.112.47$826
Jan 2023623076.533.39$1,238
Dec 2022035876.415.73$2,051
Nov 2022037185.005.65$2,095
Oct 2022841287.185.86$3,113
Sep 2022040484.888.16$3,298
Aug 2022637894.529.13$4,017
Jul 20220337101.587.54$2,542
Jun 20220320115.097.98$2,553
May 20222404109.378.43$3,626
Apr 20220319104.226.84$2,181
Mar 20220365108.885.08$1,853
Feb 2022032691.054.86$1,584
Jan 2022334881.844.54$1,825
Dec 2021035971.323.90$1,400
Nov 2021034477.435.24$1,801
Oct 2021636879.795.71$2,581
Sep 2021038169.865.35$2,039
Aug 2021040866.024.22$1,722
Jul 2021038170.783.98$1,517
Jun 2021042969.493.38$1,450
May 2021042263.483.02$1,273
Apr 2021042260.362.76$1,164
Mar 2021148961.302.72$1,390
Feb 2021027357.805.55$1,515
Jan 2021039650.412.81$1,113
Dec 2020239744.642.68$1,151
Nov 2020040938.772.71$1,107
Oct 2020335636.972.48$993
Sep 2020023137.091.99$460
Aug 2020030339.982.39$723
Jul 2020023538.371.83$429
Jun 2020015134.901.69$255
May 2020025616.921.81$465
Apr 2020025814.751.80$466
Mar 2020016330.341.86$303
Feb 2020026349.881.98$521
Jan 2020027957.252.09$584
Dec 2019026359.012.30$606
Nov 2019018455.302.75$506
Oct 2019027053.472.42$653
Sep 2019019055.052.66$505
Aug 2019034153.112.30$786
Jul 2019019956.272.46$490
Jun 2019523152.782.49$839
May 2019036358.482.74$995
Apr 2019137562.632.75$1,094
Mar 2019011756.803.06$358
Feb 2019312450.852.79$499
Jan 2019012546.033.23$404
Dec 20181911146.594.19$1,350
Nov 2018026452.934.24$1,119
Oct 2018127961.443.40$1,010
Sep 2018026859.543.11$833
Aug 2018027759.403.07$849
Jul 2018029965.142.93$877
Jun 2018116560.183.08$568
May 2018023165.382.90$670
Apr 2018138763.842.90$1,186
Mar 2018049861.222.79$1,388
Feb 2018044061.782.77$1,217
Jan 2018044562.874.01$1,784
Dec 2017048857.272.92$1,426
Nov 2017148355.423.12$1,562
Oct 2017050149.292.98$1,495
Sep 2017048347.523.09$1,491
Aug 2017050245.373.00$1,508
Jul 2017050943.873.09$1,571
Jun 2017049542.493.09$1,528
May 2017050845.373.26$1,658
Apr 2017048747.933.21$1,564
Mar 2017048646.772.98$1,450
Feb 2017145750.452.95$1,400
Jan 2017050749.413.42$1,733
Dec 2016051348.763.72$1,910
Nov 2016149642.492.64$1,354
Oct 2016050246.193.09$1,551
Sep 2016149041.553.10$1,561
Aug 2016048641.442.92$1,421
Jul 2016150541.622.92$1,518
Jun 2016049445.352.69$1,327
May 2016150642.521.99$1,050
Apr 2016247836.561.99$1,025
Mar 2016151633.011.79$959
Feb 2016046326.472.06$955
Jan 2016147027.352.36$1,139
Dec 2015045732.362.00$915
Nov 2015043438.792.17$941
Oct 2015146743.552.43$1,177
Sep 2015044442.992.76$1,225
Aug 2015049040.162.87$1,408
Jul 2015149548.152.95$1,506
Jun 2015038856.152.88$1,119
May 20151343255.212.96$1,994
Apr 2015134649.822.71$986
Mar 2015040142.892.93$1,177
Feb 2015138044.662.98$1,176
Jan 2015339143.433.10$1,343
Dec 2014137154.693.59$1,387
Nov 2014037170.464.25$1,577
Oct 2014140778.303.90$1,666
Sep 2014040586.164.05$1,638
Aug 2014038889.394.04$1,566
Jul 2014131396.564.18$1,405
Jun 2014038898.164.74$1,838
May 2014124794.734.73$1,262
Apr 2014035595.944.81$1,707
Mar 2014133695.895.06$1,795
Feb 2014037397.406.19$2,310
Jan 2014147090.404.86$2,375
Dec 2013163091.824.35$2,835
Nov 2013059288.853.74$2,213
Oct 2013157597.423.78$2,271
Sep 20130544104.113.72$2,022
Aug 20131569104.253.52$2,109
Jul 20132591102.523.72$2,402
Jun 2013054494.403.93$2,140
May 2013052094.834.15$2,158
Apr 2013158193.964.28$2,582
Mar 2013162093.623.91$2,520
Feb 2013048591.233.42$1,659
Jan 2013157791.603.42$2,065
Dec 2012057786.773.42$1,973
Nov 2012157086.953.62$2,153
Oct 2012061189.383.40$2,077
Sep 2012358694.672.92$1,994
Aug 2012158292.662.91$1,785
Jul 2012056785.133.02$1,713
Jun 2012163079.822.52$1,667
May 2012068591.612.49$1,705
Apr 20121656101.652.00$1,412
Mar 20121692105.052.22$1,643
Feb 20120657101.102.57$1,689
Jan 2012070798.092.73$1,933
Dec 2011173596.873.24$2,478
Nov 2011166995.723.31$2,311
Oct 2011069584.983.65$2,536
Sep 2011169283.623.99$2,842
Aug 2011071083.404.15$2,946
Jul 2011170694.144.52$3,283
Jun 2011167092.904.64$3,202
May 2011071698.134.40$3,154
Apr 20111712105.964.33$3,191
Mar 2011074996.364.06$3,039
Feb 2011164885.644.18$2,794
Jan 2011280986.504.59$3,885
Dec 2010079885.734.35$3,470
Nov 2010073180.843.80$2,774
Oct 2010181578.103.51$2,938
Sep 2010179672.633.98$3,240
Aug 2010084873.684.42$3,748
Jul 2010485672.554.74$4,345
Jun 2010081770.364.91$4,012
May 2010186871.124.24$3,747
Apr 2010185481.694.12$3,602
Mar 2010277578.394.39$3,558
Feb 2010070573.585.44$3,837
Jan 2010384874.365.96$5,281
Dec 2009088871.445.48$4,870
Nov 2009392674.593.75$3,698
Oct 2009097672.544.11$4,012
Sep 2009195865.543.06$3,002
Aug 2009098567.423.22$3,170
Jul 2009397861.133.46$3,572
Jun 2009195666.163.90$3,790
May 200921,01354.743.93$4,086
Apr 2009187946.773.59$3,200
Mar 200931,06742.144.06$4,457
Feb 2009397432.814.63$4,611
Jan 200911,15135.865.37$6,218
Dec 200821,14537.105.98$6,918
Nov 200821,13055.496.86$7,863
Oct 200811,18075.246.92$8,243
Sep 200811,111101.767.88$8,853
Aug 200811,214114.228.48$10,413
Jul 200811,173131.0811.39$13,491
Jun 200811,140131.3313.03$14,989
May 200811,254123.1711.57$14,637
Apr 200851,152110.3110.45$12,596
Mar 200811,215101.909.66$11,844
Feb 200811,16392.538.77$10,293
Jan 200821,25690.388.21$10,487
Dec 200711,30288.337.30$9,595
Nov 200741,29091.677.29$9,773
Oct 200711,35782.856.92$9,476
Sep 200711,35775.846.24$8,549
Aug 200741,43169.066.39$9,417
Jul 200731,45970.906.39$9,533
Jun 200701,44462.007.55$10,900
May 200731,49958.747.85$11,938
Apr 200721,48359.617.81$11,694
Mar 200721,56356.927.30$11,527
Feb 200711,59255.108.22$13,135
Jan 200721,80550.306.73$12,243
Dec 200601,90656.656.92$13,187
Nov 200631,87454.207.62$14,438
Oct 200601,98954.906.01$11,961
Sep 200601,82660.085.04$9,198
Aug 200601,78568.717.34$13,102
Jul 200601,89069.376.34$11,988
Jun 200621,64266.286.38$10,615
May 200601,90266.016.42$12,220
Apr 200601,84564.397.36$13,580
Mar 200601,95356.707.08$13,833
Feb 200621,77857.597.75$13,897
Jan 200601,96660.598.93$17,563
Dec 200501,92654.9413.42$25,838
Nov 200522,11954.6910.59$22,546
Oct 200502,61058.3413.80$36,007
Sep 200522,60361.4512.08$31,565
Aug 200502,51561.519.80$24,639
Jul 200522,67155.697.84$21,062
Jun 200502,72052.337.38$20,076
May 200502,57745.226.65$17,140
Apr 200532,35749.207.36$17,496
Mar 200502,62450.377.15$18,774
Feb 200532,28945.226.31$14,584
Jan 200542,84643.166.32$18,166
Dec 200434,42739.866.75$30,007
Nov 200464,76345.286.33$30,423
Oct 200405,31149.706.52$34,602
Sep 200435,42343.245.28$28,784
Aug 200436,75942.375.55$37,644
Jul 200448,01038.286.08$48,887
Jun 200407,00836.106.43$45,083
May 2004610,72337.486.49$69,866
Apr 2004715,11334.475.86$88,780
Mar 200401,72334.365.53$9,528

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                  189 Mcf  × $  3.05 =       $576

────────────────────────────────────────────────────
Month total                                     $576

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/205279 is the state's own key, not one this site invented.