UPSHAW, T. A. -A-

Operated by MATHIS & SONS, INC. (P-5 533040) in the UPSHAW (CANYON) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4434District 7BField 92688284OilCasinghead gasSaveExport
Value, all time
$3.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$67 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead 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 4 leases and 9 wells, and the rule below applies to all of them.

Discovered
1951-11-28
as the register files it
Field class
Oil
the register's own label
Between wells
1,200 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 acres.

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
OilDisposition84,800 bbl$3,261,834
Casinghead gasProduction97,986 Mcf$301,529
Total$3,563,363

28,503 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.

Wells on this lease (3)

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 33.1662, -100.1865. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

33.16568, -100.18627 · 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
66.7%
2 of 3 wells
With a plug date
66.7%
2 of 3 wells
Median depth
6,094 ft
3 wells filed one
Completion to plug
22.6 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
266.7%
A plug date is filed
266.7%
BothOn the schedule and plugged. Neither fact cancels the other.
266.7%
NeitherNo plug date, and not on the schedule.
133.3%

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

Between 5,000 and 6,459 ft, median 6,094 ft, over the 3 wells that filed a depth.

Completions filed
Jun 1966 – Jan 1981
2 of 3 wells; 1 filed none
Plug dates filed
Jun 1980 – Jan 1989
2 of 3 wells; 1 filed none

Last completion to plug: a median of 22.6 years across the 1 well that filed both dates, with the middle half between 22.6 years and 22.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-4330103226,459 ftJun 1980Yes
42-4333100835,000 ftJan 1981
42-4330103116,094 ftJun 1966Jan 1989Yes

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 (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 202600106.413.05$0
Apr 20260098.932.87$0
Mar 2026166089.753.15$14,899
Feb 20260063.503.75$0
Jan 2026164059.138.00$9,697
Dec 20250056.664.41$0
Nov 2025161058.593.93$9,433
Oct 20250059.383.30$0
Sep 2025162062.743.08$10,164
Aug 2025165063.933.01$10,548
Jul 20250066.743.32$0
Jun 2025185066.483.13$12,299
May 2025164060.553.23$9,930
Apr 20250062.363.54$0
Mar 2025167067.704.27$11,306
Feb 20250070.884.34$0
Jan 2025170074.324.28$12,634
Dec 2024173068.993.12$11,935
Nov 20240069.052.20$0
Oct 2024168071.372.28$11,990
Sep 2024161069.612.36$11,207
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 2024152078.082.63$11,868
May 20240078.812.20$0
Apr 2024166084.451.66$14,019
Mar 2024171080.301.55$13,731
Feb 20240076.091.78$0
Jan 2024168073.023.30$12,267
Dec 2023165071.262.61$11,758
Nov 20230077.892.81$0
Oct 2023166085.443.09$14,183
Sep 20230089.042.74$0
Aug 2023167080.522.67$13,447
Jul 2023165074.852.64$12,350
Jun 20230068.962.26$0
May 2023168070.622.23$11,864
Apr 2023173078.122.24$13,515
Mar 20230072.852.39$0
Feb 2023179075.112.47$13,445
Jan 2023175076.533.39$13,393
Dec 20220076.415.73$0
Nov 2022176085.005.65$14,960
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 2022173094.529.13$16,352
Jul 20221680101.587.54$17,065
Jun 202200115.097.98$0
May 20221670109.378.43$18,265
Apr 202200104.226.84$0
Mar 20221680108.885.08$18,292
Feb 20220091.054.86$0
Jan 2022169081.844.54$13,831
Dec 2021174071.323.90$12,410
Nov 20210077.435.24$0
Oct 2021164079.795.71$13,086
Sep 20210069.865.35$0
Aug 2021166066.024.22$10,959
Jul 2021169070.783.98$11,962
Jun 20210069.493.38$0
May 2021172063.483.02$10,919
Apr 20210060.362.76$0
Mar 2021172061.302.72$10,544
Feb 20210057.805.55$0
Jan 2021180050.412.81$9,074
Dec 2020175044.642.68$7,812
Nov 20200038.772.71$0
Oct 2020167036.972.48$6,174
Sep 20200037.091.99$0
Aug 2020172039.982.39$6,877
Jul 2020349038.371.83$13,391
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 2020174014.751.80$2,567
Mar 20200030.341.86$0
Feb 2020178049.881.98$8,879
Jan 20200057.252.09$0
Dec 2019177059.012.30$10,445
Nov 2019177055.302.75$9,788
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 2019161053.112.30$8,551
Jul 2019169056.272.46$9,510
Jun 20190052.782.49$0
May 2019170058.482.74$9,942
Apr 2019169062.632.75$10,584
Mar 20190056.803.06$0
Feb 2019173050.852.79$8,797
Jan 2019176046.033.23$8,101
Dec 20180046.594.19$0
Nov 2018175052.934.24$9,263
Oct 20180061.443.40$0
Sep 2018159059.543.11$9,467
Aug 2018158059.403.07$9,385
Jul 20180065.142.93$0
Jun 2018157060.183.08$9,448
May 2018155065.382.90$10,134
Apr 2018149063.842.90$9,512
Mar 20180061.222.79$0
Feb 2018154061.782.77$9,514
Jan 2018161062.874.01$10,122
Dec 20170057.272.92$0
Nov 2017167055.423.12$9,255
Oct 2017155049.292.98$7,640
Sep 2017163047.523.09$7,746
Aug 20170045.373.00$0
Jul 2017165043.873.09$7,239
Jun 2017157042.493.09$6,671
May 20170045.373.26$0
Apr 2017166047.933.21$7,956
Mar 2017164046.772.98$7,670
Feb 20170050.452.95$0
Jan 2017162049.413.42$8,004
Dec 2016155048.763.72$7,558
Nov 20160042.492.64$0
Oct 2016173046.193.09$7,991
Sep 2016168041.553.10$6,980
Aug 20160041.442.92$0
Jul 2016165041.622.92$6,867
Jun 2016176045.352.69$7,982
May 20160042.521.99$0
Apr 2016175036.561.99$6,398
Mar 2016182033.011.79$6,008
Feb 20160026.472.06$0
Jan 2016177027.352.36$4,841
Dec 2015179032.362.00$5,792
Nov 2015181038.792.17$7,021
Oct 20150043.552.43$0
Sep 2015176042.992.76$7,566
Aug 201515110640.162.87$6,369
Jul 2015011248.152.95$330
Jun 20151639456.152.88$9,423
May 20151638255.212.96$9,242
Apr 20151769949.822.71$9,036
Mar 201516611042.892.93$7,443
Feb 201509644.662.98$286
Jan 201515910443.433.10$7,228
Dec 201416410354.693.59$9,339
Nov 2014015270.464.25$646
Oct 201416316378.303.90$13,399
Sep 201418911186.164.05$16,733
Aug 2014011489.394.04$460
Jul 201418611596.564.18$18,441
Jun 201415511198.164.74$15,741
May 2014011994.734.73$562
Apr 201415712095.944.81$15,640
Mar 201418812495.895.06$18,654
Feb 20141657997.406.19$16,560
Jan 2014010790.404.86$520
Dec 20131679691.824.35$15,752
Nov 201316010088.853.74$14,590
Oct 2013010997.423.78$412
Sep 2013162118104.113.72$17,305
Aug 2013163124104.253.52$17,430
Jul 2013162124102.523.72$17,069
Jun 2013012094.403.93$472
May 201316212294.834.15$15,869
Apr 201316311793.964.28$15,817
Mar 201318512493.623.91$17,805
Feb 2013011291.233.42$383
Jan 201316410491.603.42$15,378
Dec 201226512186.773.42$23,408
Nov 2012011986.953.62$431
Oct 201219012489.383.40$17,404
Sep 201218712394.672.92$18,062
Aug 2012163092.662.91$15,104
Jul 2012014685.133.02$441
Jun 201218714679.822.52$15,294
May 201219014791.612.49$17,772
Apr 2012187135101.652.00$19,278
Mar 2012058105.052.22$129
Feb 2012190109101.102.57$19,489
Jan 201219612498.092.73$19,565
Dec 201119212496.873.24$19,001
Nov 201103395.723.31$109
Oct 201117014784.983.65$14,983
Sep 201119015083.623.99$16,486
Aug 2011015683.404.15$647
Jul 201115921194.144.52$15,921
Jun 201118222492.904.64$17,947
May 2011015798.134.40$692
Apr 2011162161105.964.33$17,863
Mar 201115513196.364.06$15,467
Feb 20111909485.644.18$16,665
Jan 201118419586.504.59$16,811
Dec 201019517585.734.35$17,478
Nov 2010017480.843.80$660
Oct 201016316878.103.51$13,320
Sep 201015816872.633.98$12,144
Aug 201018716973.684.42$14,525
Jul 2010017272.554.74$815
Jun 201018416670.364.91$13,761
May 201016616071.124.24$12,484
Apr 201018920281.694.12$16,272
Mar 201018811878.394.39$15,255
Feb 2010012373.585.44$669
Jan 201016813674.365.96$13,304
Dec 200919022471.445.48$14,802
Nov 200916021274.593.75$12,730
Oct 200917212072.544.11$12,970
Sep 20090065.543.06$0
Aug 200917116767.423.22$12,066
Jul 200917920561.133.46$11,652
Jun 200917222966.163.90$12,271
May 200917519654.743.93$10,349
Apr 200917122046.773.59$8,787
Mar 200918518942.144.06$8,563
Feb 200919120532.814.63$7,216
Jan 2009013935.865.37$747
Dec 200819215537.105.98$8,050
Nov 200816415055.496.86$10,129
Oct 200815628075.246.92$13,676
Sep 2008164168101.767.88$18,012
Aug 2008157221114.228.48$19,807
Jul 2008192204131.0811.39$27,491
Jun 2008166215131.3313.03$24,603
May 2008197218123.1711.57$26,788
Apr 2008166196110.3110.45$20,361
Mar 20080210101.909.66$2,029
Feb 200816319392.538.77$16,775
Jan 200833423090.388.21$32,074
Dec 2007020688.337.30$1,504
Nov 200727622291.677.29$26,920
Oct 200717625282.856.92$16,326
Sep 2007021975.846.24$1,367
Aug 200717623969.066.39$13,681
Jul 200717620170.906.39$13,762
Jun 200732717662.007.55$21,603
May 200717616158.747.85$11,601
Apr 2007017159.617.81$1,335
Mar 200717418556.927.30$11,255
Feb 200734016555.108.22$20,090
Jan 200717017050.306.73$9,695
Dec 200617317056.656.92$10,977
Nov 200618017154.207.62$11,059
Oct 200615020054.906.01$9,438
Sep 200617820060.085.04$11,702
Aug 200618119868.717.34$13,890
Jul 200616419869.376.34$12,633
Jun 200617017566.286.38$12,385
May 200616817066.016.42$12,182
Apr 200617917064.397.36$12,777
Mar 200615117056.707.08$9,766
Feb 200615917057.597.75$10,475
Jan 200617717560.598.93$12,288
Dec 200516218054.9413.42$11,315
Nov 200517218554.6910.59$11,366
Oct 200516818058.3413.80$12,284
Sep 200514818061.4512.08$11,269
Aug 200529125061.519.80$20,349
Jul 200516020055.697.84$10,479
Jun 200516124552.337.38$10,233
May 200516024545.226.65$8,865
Apr 200515824049.207.36$9,540
Mar 200533823750.377.15$18,721
Feb 200516221545.226.31$8,683
Jan 200517720043.166.32$8,904
Dec 200416322039.866.75$7,982
Nov 200417227045.286.33$9,497
Oct 200416831049.706.52$10,369
Sep 200434357043.245.28$17,843
Aug 200416758942.375.55$10,345
Jul 200415938938.286.08$8,453
Jun 200416757036.106.43$9,696
May 200416258937.486.49$9,897
Apr 200416344234.475.86$8,208
Mar 200431958934.365.53$14,218
Feb 2004166032.455.51$5,387
Jan 200416756032.036.30$8,877
Dec 200332358930.266.30$13,486
Nov 200316957028.804.60$7,486
Oct 200333455028.174.76$12,027
Sep 200317357026.314.75$7,259
Aug 200317357029.765.13$8,072
Jul 2003338029.415.17$9,941
Jun 2003168028.565.98$4,798
May 200333655626.595.97$12,255
Apr 200317357026.675.41$7,696
Mar 200317158931.146.10$8,916
Feb 200332042033.487.93$14,042
Jan 200317558930.315.58$8,592
Dec 200234148026.914.85$11,506
Nov 200232845024.664.14$9,950
Oct 200216049426.464.23$6,323
Sep 200217440027.443.64$6,229
Aug 200232755125.963.16$10,232
Jul 200216725424.583.06$4,883
Jun 200216757023.733.34$5,866
May 200233449124.663.58$9,996
Apr 200216149123.653.51$5,532
Mar 200230843222.003.10$8,116
Feb 200229625818.222.38$6,006
Jan 200217032617.172.38$3,693
Dec 200135643816.932.36$7,063
Nov 200116139518.072.41$3,859
Oct 200134126719.782.53$7,420
Sep 200117848424.262.25$5,408
Aug 200134340524.873.05$9,767
Jul 200117450623.933.20$5,782
Jun 200133650624.563.82$10,187
May 200134251925.524.31$10,963
Apr 200115250824.685.34$6,462
Mar 200134044024.545.38$10,709
Feb 200116448427.755.77$7,342
Jan 200135252927.478.40$14,112
Dec 200016853926.889.12$9,433
Nov 200033946332.215.66$13,539
Oct 200017550231.235.15$8,048
Sep 200033256531.875.19$13,511
Aug 200017553029.644.54$7,594
Jul 200034860028.534.09$12,382
Jun 200017757029.304.40$7,693
May 200035261427.263.68$11,855
Apr 200035659624.513.12$10,583
Mar 200017859628.422.86$6,763
Feb 200035456927.622.73$11,329
Jan 200018058825.272.48$6,007
Dec 199935558724.282.42$10,042
Nov 19991786023.192.43$4,274
Oct 199934956120.982.80$8,895
Sep 199935357721.752.62$9,189
Aug 199917658419.262.88$5,069
Jul 199935157017.892.37$7,632
Jun 199934452515.942.36$6,723
May 199917257015.792.32$4,039
Apr 199934755615.102.21$6,467
Mar 199916858912.471.84$3,178
Feb 19995105599.981.82$6,106
Jan 199916831110.381.90$2,335
Dec 19983325499.201.77$4,028
Nov 199834153910.892.19$4,892
Oct 199834055812.421.97$5,322
Sep 199816666012.592.08$3,464
Aug 199833770211.301.91$5,147
Jul 199833374311.742.24$5,572
Jun 199833272611.242.24$5,356
May 199834067012.622.21$5,769
Apr 199833858913.042.51$5,883
Mar 199834566312.802.31$5,947
Feb 199817261413.952.30$3,811
Jan 199853066314.702.15$9,220
Dec 199735266716.322.41$7,353
Nov 199734757418.193.09$8,085
Oct 199717567319.253.15$5,489
Sep 199734969017.742.95$8,230
Aug 199734660717.862.55$7,730
Jul 199751671517.582.25$10,678
Jun 199734661717.242.26$7,358
May 199733859918.972.31$7,795
Apr 199717656517.882.08$4,324
Mar 199735560018.951.94$7,891
Feb 199753051020.492.21$11,985
Jan 199735356623.483.54$10,292
Dec 199635466623.32$8,255
Nov 199648848921.97$10,721
Oct 199634157923.31$7,949
Sep 199651356422.22$11,399
Aug 199617155620.26$3,464
Jul 199651467419.55$10,049
Jun 199633753218.73$6,312
May 199634159319.43$6,626
Apr 199651561521.51$11,078
Mar 199634662719.38$6,705
Feb 199651862916.98$8,796
Jan 199634958417.07$5,957
Dec 199554161417.19$9,300
Nov 199535260716.00$5,632
Oct 199553360815.43$8,224
Sep 199552655616.18$8,511
Aug 199535564015.92$5,652
Jul 199553559515.24$8,153
Jun 199572162516.41$11,832
May 199535346717.56$6,199
Apr 199552058317.73$9,220
Mar 199553359016.44$8,763
Feb 199553336016.58$8,837
Jan 199572053315.92$11,462
Dec 19945306215.03$7,966
Nov 199453544515.90$8,507
Oct 199452850115.58$8,226
Sep 199453445815.29$8,165
Aug 199469551016.13$11,210
Jul 199468758817.56$12,064
Jun 199468868617.09$11,758
May 199452966615.88$8,401
Apr 199451257814.14$7,240
Mar 199469551012.46$8,660
Feb 199450555612.50$6,313
Jan 199468065912.66$8,609
Dec 199350767512.33$6,251
Nov 199365665714.49$9,505
Oct 199366980615.85$10,604
Sep 199368174915.03$10,235
Aug 199384176115.66$13,170
Jul 199368181315.46$10,528
Jun 199366770416.79$11,199
May 199385271617.68$15,063
Apr 199370564818.05$12,725
Mar 199368568418.14$12,426
Feb 199383154917.90$14,875
Jan 199369863616.93$11,817

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.

Mar 2026 — as filed, then multipliedworked
Oil                  166 bbl  × $ 89.75 =    $14,899
Casinghead gas         0 Mcf  × $  3.15 =         $0

────────────────────────────────────────────────────
Month total                                  $14,899

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. 7B/O/4434 is the state's own key, not one this site invented.