GLASSCOCK RANCH A

Operated by TRINITY OPERATING (USG), LLC (P-5 870209) in the PEARSALL (AUSTIN CHALK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 9813District 01Field 69981125OilCasinghead gasSaveExport
Value, all time
$6.8 M
Jan 1993 – May 2024
Value, last 12 filed months
$0
at the published price for each month
Months reported
377
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 1,992 leases and 3,388 wells, and the rule below applies to all of them.

Discovered
1936-12-28
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2025-06-17.

The Commission's schedule remark for this field reads: LEASE PLAT. PRORATION PLAT IS NOT REQUIRED.

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
OilDisposition275,982 bbl$6,708,627
Casinghead gasProduction1,121,014 Mcf$43,163
Total$6,751,790

1,104,735 Mcf of this lease's gas, across 38 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 (30)

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 28.7112, -99.4866. A lease has no coordinate of its own — that point is the mean of its wells, and they span 4.1 miles.

28.71522, -99.48980 · 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
100.0%
30 of 30 wells
With a plug date
100.0%
30 of 30 wells
Median depth
9,530 ft
30 wells filed one
Completion to plug
31.5 years
median over 25 wells

What the state filed about each well

On the RRC proration schedule
30100.0%
A plug date is filed
30100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
30100.0%
NeitherNo plug date, and not on the schedule.
00.0%

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

Total depth in feet, 30 of 30 wells. Median 9,530 ft, with the middle half between 6,966 and 9,902 ft; the shallowest is 6,220 ft and the deepest 10,820 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, 25 of 30 wells, Nov 1978 – Aug 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
Nov 1978 – Aug 2012
25 of 30 wells; 5 filed none
Plug dates filed
Oct 1986 – Apr 2024
30 of 30 wells

Last completion to plug: a median of 31.5 years across the 25 wells that filed both dates, with the middle half between 26.3 years and 31.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

30 wells

42-50732284156,220 ftJul 2022Yes
42-50732292177,260 ftMay 2016Yes
42-50732367336,797 ftJun 2016Yes
42-50732375366,363 ftFeb 2023Yes
42-50732463319,524 ftAug 2022Yes
42-507329033H6,323 ftAug 2012May 2022Yes
42-507328902H6,669 ftAug 2012Feb 2023Yes
42-507323232510,820 ftNov 1992Mar 2023Yes
42-50732322239,979 ftNov 1992Apr 2022Yes
42-50732291167,572 ftAug 1991Feb 2023Yes
42-507322931810,070 ftFeb 1991May 2017Yes
42-50732396379,858 ftFeb 1991Jul 2017Yes
42-50732373348,278 ftFeb 1991Aug 2020Yes
42-50732275136,790 ftNov 1990Jul 2022Yes
42-507323653210,003 ftNov 1990Aug 2022Yes
42-50732349309,800 ftNov 1990Jul 2022Yes
42-50732374359,668 ftNov 1990Feb 2023Yes
42-50732282149,385 ftSep 1990May 2022Yes
42-50732348299,536 ftSep 1990May 2022Yes
42-50732335289,938 ftSep 1990May 2022Yes
42-507323052210,110 ftAug 1990Oct 1992Yes
42-50732336279,905 ftJul 1990Apr 2022Yes
42-50732337269,800 ftJul 1990Mar 2023Yes
42-50732321249,894 ftJun 1990Apr 2024Yes
42-50732294199,562 ftMay 1990Jul 2021Yes
42-507322952010,031 ftApr 1990May 2016Yes
42-50732271129,405 ftDec 1989May 2022Yes
42-50732057106,633 ftNov 1989Apr 2022Yes
42-5073199996,920 ftAug 1984Oct 1986Yes
42-5073035852057,105 ftNov 1978Feb 2005Yes

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 (377)

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

377 months

May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20226081.844.54$491
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20211070.783.98$71
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20201037.091.99$37
Aug 20201039.982.39$40
Jul 20201038.371.83$38
Jun 20202034.901.69$70
May 20200016.921.81$0
Apr 20203014.751.80$44
Mar 20204030.341.86$121
Feb 20206049.881.98$299
Jan 20200057.252.09$0
Dec 20199059.012.30$531
Nov 201910055.302.75$553
Oct 20190053.472.42$0
Sep 201922055.052.66$1,211
Aug 201973053.112.30$3,877
Jul 201958056.272.46$3,264
Jun 201965052.782.49$3,431
May 2019128058.482.74$7,485
Apr 201965062.632.75$4,071
Mar 2019132056.803.06$7,498
Feb 201967050.852.79$3,407
Jan 2019202046.033.23$9,298
Dec 201867046.594.19$3,122
Nov 2018138052.934.24$7,304
Oct 20180061.443.40$0
Sep 201866059.543.11$3,930
Aug 2018131059.403.07$7,781
Jul 201868065.142.93$4,430
Jun 2018144060.183.08$8,666
May 2018147065.382.90$9,611
Apr 2018147063.842.90$9,384
Mar 2018137061.222.79$8,387
Feb 2018691961.782.77$4,315
Jan 20182047362.874.01$13,118
Dec 201720312157.272.92$11,979
Nov 20171879855.423.12$10,669
Oct 201702149.292.98$63
Sep 2017655847.523.09$3,268
Aug 2017673245.373.00$3,136
Jul 201702243.873.09$68
Jun 20171274042.493.09$5,520
May 20171854345.373.26$8,534
Apr 20171337647.933.21$6,619
Mar 201719810646.772.98$9,577
Feb 2017673850.452.95$3,492
Jan 201713011649.413.42$6,820
Dec 201619312748.763.72$9,883
Nov 20161238942.492.64$5,462
Oct 20161528446.193.09$7,280
Sep 20161088241.553.10$4,742
Aug 2016927041.442.92$4,017
Jul 20161987041.622.92$8,445
Jun 20161015345.352.69$4,723
May 2016787442.521.99$3,464
Apr 20161287036.561.99$4,819
Mar 20162457733.011.79$8,226
Feb 201657726.472.06$291
Jan 20162046127.352.36$5,724
Dec 20153399532.362.00$11,160
Nov 201519114038.792.17$7,712
Oct 201528014843.552.43$12,553
Sep 201527410042.992.76$12,055
Aug 20153028940.162.87$12,384
Jul 201526131248.152.95$13,486
Jun 20154047556.152.88$22,901
May 201532210755.212.96$18,094
Apr 201544410349.822.71$22,399
Mar 201530111242.892.93$13,239
Feb 20154327844.662.98$19,525
Jan 201529710743.433.10$13,230
Dec 201456122854.693.59$31,500
Nov 20142634670.464.25$18,727
Oct 20141977078.303.90$15,698
Sep 201418910186.164.05$16,693
Aug 20142401689.394.04$21,518
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201220105.052.22$210
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 2011134095.723.31$12,826
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20113083.404.15$250
Jul 20112094.144.52$188
Jun 20113092.904.64$279
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 2010757085.734.35$64,898
Nov 20100080.843.80$0
Oct 2010147078.103.51$11,481
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 201085081.694.12$6,944
Mar 20100078.394.39$0
Feb 2010160073.585.44$11,773
Jan 2010158074.365.96$11,749
Dec 2009297071.445.48$21,218
Nov 2009319074.593.75$23,794
Oct 2009317072.544.11$22,995
Sep 2009292065.543.06$19,138
Aug 2009158067.423.22$10,652
Jul 2009157061.133.46$9,597
Jun 2009157066.163.90$10,387
May 2009154054.743.93$8,430
Apr 20090046.773.59$0
Mar 2009155042.144.06$6,532
Feb 20090032.814.63$0
Jan 2009132035.865.37$4,734
Dec 2008229037.105.98$8,496
Nov 2008152055.496.86$8,434
Oct 2008155075.246.92$11,662
Sep 20081560101.767.88$15,875
Aug 20083000114.228.48$34,266
Jul 20081490131.0811.39$19,531
Jun 20081590131.3313.03$20,881
May 20083080123.1711.57$37,936
Apr 20081580110.3110.45$17,429
Mar 20081570101.909.66$15,998
Feb 2008156092.538.77$14,435
Jan 2008478090.388.21$43,202
Dec 2007153088.337.30$13,514
Nov 2007470091.677.29$43,085
Oct 2007757082.856.92$62,717
Sep 2007138075.846.24$10,466
Aug 2007470069.066.39$32,458
Jul 2007317070.906.39$22,475
Jun 2007309062.007.55$19,158
May 2007160058.747.85$9,398
Apr 2007315059.617.81$18,777
Mar 2007157056.927.30$8,936
Feb 2007152055.108.22$8,375
Jan 2007309050.306.73$15,543
Dec 2006787056.656.92$44,584
Nov 2006316054.207.62$17,127
Oct 2006638054.906.01$35,026
Sep 2006725060.085.04$43,558
Aug 2006790068.717.34$54,281
Jul 20061,421069.376.34$98,575
Jun 20061,410066.286.38$93,455
May 20061,716066.016.42$113,273
Apr 20061,547064.397.36$99,611
Mar 2006760056.707.08$43,092
Feb 2006307057.597.75$17,680
Jan 2006157060.598.93$9,513
Dec 2005477054.9413.42$26,206
Nov 2005152054.6910.59$8,313
Oct 2005625058.3413.80$36,463
Sep 2005155061.4512.08$9,525
Aug 2005610061.519.80$37,521
Jul 2005632055.697.84$35,196
Jun 2005780052.337.38$40,817
May 2005789045.226.65$35,679
Apr 2005628049.207.36$30,898
Mar 2005795050.377.15$40,044
Feb 2005475045.226.31$21,480
Jan 20051,440043.166.32$62,150
Dec 2004166039.866.75$6,617
Nov 2004797045.286.33$36,088
Oct 2004658049.706.52$32,703
Sep 2004496043.245.28$21,447
Aug 2004815042.375.55$34,532
Jul 2004841038.286.08$32,193
Jun 2004834036.106.43$30,107
May 2004120037.486.49$4,498
Apr 2004651034.475.86$22,440
Mar 2004781034.365.53$26,835
Feb 2004318032.455.51$10,319
Jan 2004503032.036.30$16,111
Dec 20031,528030.266.30$46,237
Nov 2003330028.804.60$9,504
Oct 2003320028.174.76$9,014
Sep 2003330026.314.75$8,682
Aug 2003665029.765.13$19,790
Jul 20031,171029.415.17$34,439
Jun 20031,825028.565.98$52,122
May 2003504026.595.97$13,401
Apr 2003478026.675.41$12,748
Mar 2003329031.146.10$10,245
Feb 2003344033.487.93$11,517
Jan 2003176030.315.58$5,335
Dec 2002552026.914.85$14,854
Nov 20020024.664.14$0
Oct 2002332026.464.23$8,785
Sep 2002177027.443.64$4,857
Aug 2002490025.963.16$12,720
Jul 2002327024.583.06$8,038
Jun 2002533023.733.34$12,648
May 2002170024.663.58$4,192
Apr 2002361023.653.51$8,538
Mar 2002533022.003.10$11,726
Feb 2002696018.222.38$12,681
Jan 2002361017.172.38$6,198
Dec 20010016.932.36$0
Nov 2001344018.072.41$6,216
Oct 2001544019.782.53$10,760
Sep 2001529024.262.25$12,834
Aug 20011,026024.873.05$25,517
Jul 2001531023.933.20$12,707
Jun 2001690024.563.82$16,946
May 2001349025.524.31$8,906
Apr 2001325024.685.34$8,021
Mar 20011,068024.545.38$26,209
Feb 2001534027.755.77$14,819
Jan 2001507027.478.40$13,927
Dec 20000026.889.12$0
Nov 20000032.215.66$0
Oct 2000360031.235.15$11,243
Sep 2000359031.875.19$11,441
Aug 2000715029.644.54$21,193
Jul 20001,024028.534.09$29,215
Jun 2000719029.304.40$21,067
May 20001,199027.263.68$32,685
Apr 2000948024.513.12$23,235
Mar 20001,772028.422.86$50,360
Feb 20001,025027.622.73$28,311
Jan 20001,319025.272.48$33,331
Dec 19992,006024.282.42$48,706
Nov 19991,316023.192.43$30,518
Oct 1999698020.982.80$14,644
Sep 1999704021.752.62$15,312
Aug 1999693019.262.88$13,347
Jul 1999971017.892.37$17,371
Jun 1999415015.942.36$6,615
May 1999717015.792.32$11,321
Apr 1999925015.102.21$13,968
Mar 1999337012.471.84$4,202
Feb 1999009.981.82$0
Jan 1999218010.381.90$2,263
Dec 1998009.201.77$0
Nov 1998309010.892.19$3,365
Oct 19980012.421.97$0
Sep 19981,471012.592.08$18,520
Aug 1998669011.301.91$7,560
Jul 19981,556011.742.24$18,267
Jun 19982,960011.242.24$33,270
May 19981,779012.622.21$22,451
Apr 19982,127013.042.51$27,736
Mar 1998710012.802.31$9,088
Feb 19986793113.952.30$9,543
Jan 19981,00210114.702.15$14,947
Dec 19971,343016.322.41$21,918
Nov 19971,34821718.193.09$25,190
Oct 19972,10866819.253.15$42,683
Sep 19972,2441,93317.742.95$45,520
Aug 19973,1361,52417.862.55$59,902
Jul 19972,7931,31717.582.25$52,060
Jun 19971,7231,47917.242.26$33,043
May 19972,4441,31118.972.31$49,389
Apr 19971,92450517.882.08$35,453
Mar 19971,7901,11318.951.94$36,079
Feb 19971,8111,04320.492.21$39,408
Jan 19971,0051,31323.483.54$28,245
Dec 19964961,79523.32$11,567
Nov 199669931821.97$15,357
Oct 1996707023.31$16,480
Sep 1996722022.22$16,043
Aug 19961,197020.26$24,251
Jul 1996548019.55$10,713
Jun 1996847018.73$15,864
May 1996939019.43$18,245
Apr 1996707021.51$15,208
Mar 19961,730019.38$33,527
Feb 19961,667016.98$28,306
Jan 19962,213017.07$37,776
Dec 19951,54482317.19$26,541
Nov 19952,45877816.00$39,328
Oct 19951,1561,79515.43$17,837
Sep 19951,2801,77416.18$20,710
Aug 19951,3451,58115.92$21,412
Jul 19951,9271,69315.24$29,367
Jun 19951,9671,68816.41$32,278
May 19953,3253,97517.56$58,387
Apr 19952,6739,58917.73$47,392
Mar 19952,51913,01716.44$41,412
Feb 19952,52916,69216.58$41,931
Jan 19953,27119,04815.92$52,074
Dec 19943,15023,75315.03$47,345
Nov 19942,81626,79915.90$44,774
Oct 19944,13128,69415.58$64,361
Sep 19944,04534,97715.29$61,848
Aug 19945,59138,30516.13$90,183
Jul 19943,86238,88717.56$67,817
Jun 19943,32922,72017.09$56,893
May 19946,13230,79415.88$97,376
Apr 19944,96753,00414.14$70,233
Mar 19942,22661,15612.46$27,736
Feb 19944,64440,29912.50$58,050
Jan 19942,81532,86112.66$35,638
Dec 19933,41952,97112.33$42,156
Nov 19933,47768,37114.49$50,382
Oct 19934,68068,28015.85$74,178
Sep 19937,21056,10015.03$108,366
Aug 19939,36342,97915.66$146,625
Jul 19935,58147,37815.46$86,282
Jun 19936,33356,60516.79$106,331
May 19935,67262,60617.68$100,281
Apr 19934,64956,60518.05$83,914
Mar 19935,61252,91118.14$101,802
Feb 19935,96117,21617.90$106,702
Jan 19938,07615,89816.93$136,727

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.

Jan 2022 — as filed, then multipliedworked
Oil                    6 bbl  × $ 81.84 =       $491
Casinghead gas         0 Mcf  × $  4.54 =         $0

────────────────────────────────────────────────────
Month total                                     $491

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. 01/O/9813 is the state's own key, not one this site invented.