UNIVERSITY -K-

Operated by MAS OPERATING CO. (P-5 531346) in the CROCKETT field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 401District 7CField 21766001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$6.1 M
Jan 1993 – May 2026
Value, last 12 filed months
$219 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 35 leases and 188 wells, and the rule below applies to all of them.

Discovered
1938-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

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
OilDisposition117,012 bbl$6,132,362
Casinghead gasProduction39 Mcf$0
Total$6,132,362

39 Mcf of this lease's gas, across 39 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 (32)

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 31.0664, -102.0411. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

31.06659, -102.03995 · 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
34.4%
11 of 32 wells
With a plug date
31.3%
10 of 32 wells
Median depth
1,515 ft
18 wells filed one
Completion to plug
23.6 years
median over 5 wells

What the state filed about each well

On the RRC proration schedule
1134.4%
A plug date is filed
1031.3%
BothOn the schedule and plugged. Neither fact cancels the other.
1031.3%
NeitherNo plug date, and not on the schedule.
2165.6%

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

Total depth in feet, 18 of 32 wells. Median 1,515 ft, with the middle half between 1,480 and 1,550 ft; the shallowest is 400 ft and the deepest 1,673 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 13 of 32 wells, Jul 1971 – Dec 2012. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jul 1971 – Dec 2012
13 of 32 wells; 19 filed none
Plug dates filed
Dec 1984 – Mar 2022
10 of 32 wells; 22 filed none

Last completion to plug: a median of 23.6 years across the 5 wells that filed both dates, with the middle half between 19.7 years and 25.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

32 wells

42-105005261Yes
42-10500869131,496 ftDec 1984Yes
42-10500871151,565 ftJun 1987Yes
42-10500878221,459 ftAug 2011Yes
42-10501619121,472 ftDec 1984Yes
42-1050165281,673 ftFeb 2018Yes
42-105008567
42-1050087216
42-1050087317
42-1050087418
42-1050087519
42-1050087620
42-1050087721
42-1050087924
42-105016539
42-1050165511
42-105016562
42-105016584
42-105016595
42-1050165731,520 ftDec 2012
42-10530781331,552 ftJul 1978Feb 2002Yes
42-10531165371,515 ftJun 1978
42-10531873321,550 ftApr 1978
42-105307791W400 ftMar 1978Jun 1987Yes
42-10531173381,519 ftJan 1978
42-10530782311,566 ftNov 1977
42-10531167401,481 ftNov 1977
42-10531166391,477 ftAug 1977
42-10530940361,480 ftAug 1977Mar 2022Yes
42-10530939351,515 ftMar 1977Nov 1996Yes
42-10530938341,548 ftFeb 1977
42-10530284261,509 ftJul 1971Nov 1996Yes

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 20261790106.413.05$19,047
Apr 2026176098.932.87$17,412
Mar 2026352089.753.15$31,592
Feb 2026342063.503.75$21,717
Jan 2026168059.138.00$9,934
Dec 2025160056.664.41$9,066
Nov 2025353058.593.93$20,682
Oct 2025182059.383.30$10,807
Sep 2025361062.743.08$22,649
Aug 2025162063.933.01$10,357
Jul 2025363066.743.32$24,227
Jun 2025322066.483.13$21,407
May 2025183060.553.23$11,081
Apr 2025355062.363.54$22,138
Mar 2025164067.704.27$11,103
Feb 2025340070.884.34$24,099
Jan 2025159074.324.28$11,817
Dec 2024350068.993.12$24,147
Nov 2024185069.052.20$12,774
Oct 2024355071.372.28$25,336
Sep 2024163069.612.36$11,346
Aug 2024328075.632.06$24,807
Jul 2024171079.932.15$13,668
Jun 2024169078.082.63$13,196
May 2024355078.812.20$27,978
Apr 2024346084.451.66$29,220
Mar 2024326080.301.55$26,178
Feb 2024169076.091.78$12,859
Jan 2024164073.023.30$11,975
Dec 2023347071.262.61$24,727
Nov 2023166077.892.81$12,930
Oct 2023177085.443.09$15,123
Sep 2023329089.042.74$29,294
Aug 2023159080.522.67$12,803
Jul 2023181074.852.64$13,548
Jun 2023168068.962.26$11,585
May 2023178070.622.23$12,570
Apr 2023344078.122.24$26,873
Mar 2023166072.852.39$12,093
Feb 2023164075.112.47$12,318
Jan 2023325076.533.39$24,872
Dec 2022166076.415.73$12,684
Nov 2022184085.005.65$15,640
Oct 2022162087.185.86$14,123
Sep 2022351084.888.16$29,793
Aug 2022181094.529.13$17,108
Jul 20221630101.587.54$16,558
Jun 20223370115.097.98$38,785
May 20221720109.378.43$18,812
Apr 20221720104.226.84$17,926
Mar 20223560108.885.08$38,761
Feb 2022176091.054.86$16,025
Jan 2022179081.844.54$14,649
Dec 2021348071.323.90$24,819
Nov 2021179077.435.24$13,860
Oct 2021350079.795.71$27,927
Sep 2021172069.865.35$12,016
Aug 2021177066.024.22$11,686
Jul 2021337070.783.98$23,853
Jun 2021176069.493.38$12,230
May 2021359063.483.02$22,789
Apr 2021172060.362.76$10,382
Mar 2021344061.302.72$21,087
Feb 2021182057.805.55$10,520
Jan 2021165050.412.81$8,318
Dec 2020360044.642.68$16,070
Nov 2020180038.772.71$6,979
Oct 2020182036.972.48$6,729
Sep 2020351037.091.99$13,019
Aug 2020176039.982.39$7,036
Jul 2020178038.371.83$6,830
Jun 2020355034.901.69$12,390
May 20200016.921.81$0
Apr 2020328014.751.80$4,838
Mar 2020358030.341.86$10,862
Feb 2020183049.881.98$9,128
Jan 2020177057.252.09$10,133
Dec 2019324059.012.30$19,119
Nov 2019174055.302.75$9,622
Oct 2019343053.472.42$18,340
Sep 2019337055.052.66$18,552
Aug 2019342053.112.30$18,164
Jul 2019159056.272.46$8,947
Jun 2019172052.782.49$9,078
May 2019330058.482.74$19,298
Apr 2019167062.632.75$10,459
Mar 2019315056.803.06$17,892
Feb 2019359050.852.79$18,255
Jan 2019180046.033.23$8,285
Dec 2018349046.594.19$16,260
Nov 2018349052.934.24$18,473
Oct 2018177061.443.40$10,875
Sep 2018353059.543.11$21,018
Aug 2018172059.403.07$10,217
Jul 2018344065.142.93$22,408
Jun 2018179060.183.08$10,772
May 2018343065.382.90$22,425
Apr 2018346063.842.90$22,089
Mar 2018177061.222.79$10,836
Feb 2018339061.782.77$20,943
Jan 2018180062.874.01$11,317
Dec 2017347057.272.92$19,873
Nov 2017360055.423.12$19,951
Oct 2017345049.292.98$17,005
Sep 2017173047.523.09$8,221
Aug 2017323045.373.00$14,655
Jul 2017506043.873.09$22,198
Jun 2017168042.493.09$7,138
May 2017336045.373.26$15,244
Apr 2017358047.933.21$17,159
Mar 2017361046.772.98$16,884
Feb 2017342050.452.95$17,254
Jan 2017368049.413.42$18,183
Dec 2016358048.763.72$17,456
Nov 2016171042.492.64$7,266
Oct 2016320046.193.09$14,781
Sep 2016360041.553.10$14,958
Aug 2016353041.442.92$14,628
Jul 2016354041.622.92$14,733
Jun 2016339045.352.69$15,374
May 2016341042.521.99$14,499
Apr 2016334036.561.99$12,211
Mar 2016344033.011.79$11,355
Feb 2016356026.472.06$9,423
Jan 2016351027.352.36$9,600
Dec 2015344032.362.00$11,132
Nov 2015164038.792.17$6,362
Oct 2015344043.552.43$14,981
Sep 2015344042.992.76$14,789
Aug 2015334040.162.87$13,413
Jul 2015351048.152.95$16,901
Jun 2015330056.152.88$18,530
May 2015340055.212.96$18,771
Apr 2015361049.822.71$17,985
Mar 2015347042.892.93$14,883
Feb 2015365044.662.98$16,301
Jan 2015338043.433.10$14,679
Dec 2014174054.693.59$9,516
Nov 2014343070.464.25$24,168
Oct 2014371078.303.90$29,049
Sep 2014343086.164.05$29,553
Aug 2014335089.394.04$29,946
Jul 2014517096.564.18$49,922
Jun 2014177098.164.74$17,374
May 2014360094.734.73$34,103
Apr 2014347095.944.81$33,291
Mar 2014361095.895.06$34,616
Feb 2014339097.406.19$33,019
Jan 2014352090.404.86$31,821
Dec 2013348091.824.35$31,953
Nov 2013174088.853.74$15,460
Oct 2013357097.423.78$34,779
Sep 20133370104.113.72$35,085
Aug 20133580104.253.52$37,322
Jul 20131870102.523.72$19,171
Jun 2013361094.403.93$34,078
May 2013187094.834.15$17,733
Apr 2013360093.964.28$33,826
Mar 2013350093.623.91$32,767
Feb 2013192091.233.42$17,516
Jan 2013337091.603.42$30,869
Dec 2012371086.773.42$32,192
Nov 2012175086.953.62$15,216
Oct 2012353089.383.40$31,551
Sep 2012183094.672.92$17,325
Aug 2012352092.662.91$32,616
Jul 2012185085.133.02$15,749
Jun 2012348079.822.52$27,777
May 2012364091.612.49$33,346
Apr 20121810101.652.00$18,399
Mar 20121860105.052.22$19,539
Feb 20123610101.102.57$36,497
Jan 2012185098.092.73$18,147
Dec 2011364096.873.24$35,261
Nov 2011168095.723.31$16,081
Oct 2011525084.983.65$44,615
Sep 2011175083.623.99$14,634
Aug 2011345083.404.15$28,773
Jul 2011348094.144.52$32,761
Jun 2011340092.904.64$31,586
May 2011325098.134.40$31,892
Apr 20113350105.964.33$35,497
Mar 2011369096.364.06$35,557
Feb 2011177085.644.18$15,158
Jan 2011373086.504.59$32,265
Dec 2010366085.734.35$31,377
Nov 2010175080.843.80$14,147
Oct 2010506078.103.51$39,519
Sep 2010361072.633.98$26,219
Aug 2010179073.684.42$13,189
Jul 2010351072.554.74$25,465
Jun 2010366070.364.91$25,752
May 2010347071.124.24$24,679
Apr 2010365081.694.12$29,817
Mar 2010337078.394.39$26,417
Feb 2010357073.585.44$26,268
Jan 2010337074.365.96$25,059
Dec 2009169071.445.48$12,073
Nov 2009351074.593.75$26,181
Oct 2009521072.544.11$37,793
Sep 2009353065.543.06$23,136
Aug 2009341067.423.22$22,990
Jul 2009523061.133.46$31,971
Jun 2009530066.163.90$35,065
May 2009350054.743.93$19,159
Apr 2009509046.773.59$23,806
Mar 2009355042.144.06$14,960
Feb 2009327032.814.63$10,729
Jan 2009339035.865.37$12,157
Dec 2008340037.105.98$12,614
Nov 2008344055.496.86$19,089
Oct 2008362075.246.92$27,237
Sep 20081800101.767.88$18,317
Aug 20083650114.228.48$41,690
Jul 20083570131.0811.39$46,796
Jun 20083300131.3313.03$43,339
May 20083600123.1711.57$44,341
Apr 20083620110.3110.45$39,932
Mar 20083400101.909.66$34,646
Feb 2008348092.538.77$32,200
Jan 2008356090.388.21$32,175
Dec 2007362088.337.30$31,975
Nov 2007346091.677.29$31,718
Oct 2007338082.856.92$28,003
Sep 2007338075.846.24$25,634
Aug 2007333069.066.39$22,997
Jul 2007340070.906.39$24,106
Jun 2007327062.007.55$20,274
May 2007510058.747.85$29,957
Apr 2007169059.617.81$10,074
Mar 2007355056.927.30$20,207
Feb 2007340055.108.22$18,734
Jan 2007344050.306.73$17,303
Dec 2006339056.656.92$19,204
Nov 2006338054.207.62$18,320
Oct 2006343054.906.01$18,831
Sep 2006339060.085.04$20,367
Aug 2006505068.717.34$34,699
Jul 2006335069.376.34$23,239
Jun 2006501066.286.38$33,206
May 2006342066.016.42$22,575
Apr 2006338064.397.36$21,764
Mar 2006326056.707.08$18,484
Feb 2006319057.597.75$18,371
Jan 2006332060.598.93$20,116
Dec 2005347054.9413.42$19,064
Nov 2005333054.6910.59$18,212
Oct 2005273058.3413.80$15,927
Sep 2005328061.4512.08$20,156
Aug 2005331061.519.80$20,360
Jul 2005170055.697.84$9,467
Jun 2005161052.337.38$8,425
May 2005337045.226.65$15,239
Apr 2005335049.207.36$16,482
Mar 2005338050.377.15$17,025
Feb 2005343045.226.31$15,510
Jan 2005170043.166.32$7,337
Dec 2004170039.866.75$6,776
Nov 2004157045.286.33$7,109
Oct 2004170049.706.52$8,449
Sep 2004338043.245.28$14,615
Aug 2004170042.375.55$7,203
Jul 2004169038.286.08$6,469
Jun 2004159036.106.43$5,740
May 2004328037.486.49$12,293
Apr 2004338034.475.86$11,651
Mar 2004344034.365.53$11,820
Feb 2004169032.455.51$5,484
Jan 2004174032.036.30$5,573
Dec 2003171030.266.30$5,174
Nov 2003318028.804.60$9,158
Oct 2003345028.174.76$9,719
Sep 2003297026.314.75$7,814
Aug 2003171029.765.13$5,089
Jul 2003170029.415.17$5,000
Jun 2003336028.565.98$9,596
May 2003164026.595.97$4,361
Apr 2003297026.675.41$7,921
Mar 2003329031.146.10$10,245
Feb 2003316033.487.93$10,580
Jan 2003340030.315.58$10,305
Dec 2002167026.914.85$4,494
Nov 2002341024.664.14$8,409
Oct 2002328026.464.23$8,679
Sep 2002337027.443.64$9,247
Aug 2002168025.963.16$4,361
Jul 2002184024.583.06$4,523
Jun 2002315023.733.34$7,475
May 2002341024.663.58$8,409
Apr 2002347023.653.51$8,207
Mar 2002328022.003.10$7,216
Feb 2002310018.222.38$5,648
Jan 2002354017.172.38$6,078
Dec 2001341016.932.36$5,773
Nov 2001174018.072.41$3,144
Oct 2001310019.782.53$6,132
Sep 2001289024.262.25$7,011
Aug 2001289024.873.05$7,187
Jul 2001345023.933.20$8,256
Jun 2001346024.563.82$8,498
May 2001168025.524.31$4,287
Apr 2001323024.685.34$7,972
Mar 2001320024.545.38$7,853
Feb 2001343027.755.77$9,518
Jan 2001345027.478.40$9,477
Dec 2000176026.889.12$4,731
Nov 2000347032.215.66$11,177
Oct 2000341031.235.15$10,649
Sep 2000499031.875.19$15,903
Aug 2000344029.644.54$10,196
Jul 2000365028.534.09$10,413
Jun 2000359029.304.40$10,519
May 2000532027.263.68$14,502
Apr 2000527024.513.12$12,917
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 2000765025.272.48$19,332
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 1998550011.242.24$6,182
May 1998365012.622.21$4,606
Apr 19980013.042.51$0
Mar 1998548012.802.31$7,014
Feb 1998180013.952.30$2,511
Jan 1998546014.702.15$8,026
Dec 1997443016.322.41$7,230
Nov 1997353018.193.09$6,421
Oct 1997319019.253.15$6,141
Sep 1997490017.742.95$8,693
Aug 1997334017.862.55$5,965
Jul 1997506017.582.25$8,895
Jun 1997328017.242.26$5,655
May 1997428018.972.31$8,119
Apr 1997511017.882.08$9,137
Mar 1997499018.951.94$9,456
Feb 1997624020.492.21$12,786
Jan 19970023.483.54$0
Dec 1996474023.32$11,054
Nov 1996542021.97$11,908
Oct 1996353023.31$8,228
Sep 1996531022.22$11,799
Aug 1996485020.26$9,826
Jul 1996363019.55$7,097
Jun 19960018.73$0
May 19960019.43$0
Apr 19960121.51$0
Mar 19960119.38$0
Feb 19960116.98$0
Jan 19960117.07$0
Dec 19950017.19$0
Nov 19950116.00$0
Oct 19950115.43$0
Sep 19950116.18$0
Aug 19950115.92$0
Jul 19950115.24$0
Jun 1995145116.41$2,379
May 1995129117.56$2,265
Apr 1995155117.73$2,748
Mar 1995121116.44$1,989
Feb 19950116.58$0
Jan 1995175115.92$2,786
Dec 1994181115.03$2,720
Nov 1994181115.90$2,878
Oct 1994160115.58$2,493
Sep 1994345115.29$5,275
Aug 1994359116.13$5,791
Jul 1994478117.56$8,394
Jun 1994350117.09$5,982
May 1994280115.88$4,446
Apr 1994472114.14$6,674
Mar 1994300112.46$3,738
Feb 1994269112.50$3,363
Jan 1994612112.66$7,748
Dec 1993569112.33$7,016
Nov 1993806114.49$11,679
Oct 1993464115.85$7,354
Sep 1993701115.03$10,536
Aug 1993717115.66$11,228
Jul 1993623115.46$9,632
Jun 1993716116.79$12,022
May 1993755117.68$13,348
Apr 1993902118.05$16,281
Mar 1993717118.14$13,006
Feb 1993886117.90$15,859
Jan 19931,091116.93$18,471

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
Oil                  179 bbl  × $106.41 =    $19,047
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $19,047

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/O/401 is the state's own key, not one this site invented.