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GLASS, G. W. B NORTH

Operated by COG OPERATING LLC (P-5 166150) in the SPRABERRY (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 40638District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$37.1 M
Jan 2011 – May 2026
Value, last 12 filed months
$866 k
at the published price for each month
Months reported
185
no gaps in the span
Streams
2
oil, casinghead gas

The SPRABERRY (TREND AREA) field

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 16,587 leases and 43,997 wells, and the rule below applies to all of them.

Discovered
1952-12-22
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 2018-02-13.

The Commission's schedule remark for this field reads: “SPRABERRY (TREND AREA) FIELD EFFECTIVE 10/1/2019.”

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
OilDisposition478,177 bbl$34,350,789
Casinghead gasProduction783,223 Mcf$2,792,315
Total$37,143,104

Wells on this lease (6)

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 32.1831, -102.1003. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

32.18297, -102.09798 · 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 6 wells
With a plug date
0.0%
0 of 6 wells
Median depth
11,433 ft
6 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.
6100.0%

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

Between 10,828 and 12,060 ft, median 11,433 ft, over the 6 wells that filed a depth.

Completions filed
Feb 2009 – Oct 2016
6 of 6 wells

6 wells

42-317358322510,935 ftOct 2016——
42-317390222811,920 ftApr 2014——
42-317385082712,060 ftNov 2013——
42-317384852611,930 ftOct 2013——
42-317358312410,945 ftDec 2010——
42-317349221410,828 ftFeb 2009——

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 (185)

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

185 months

May 202634210106.413.05$36,423
Apr 20261,374298.932.87$135,936
Mar 202668618889.753.15$62,161
Feb 20261,01284263.503.75$67,420
Jan 20261,40380259.138.00$89,374
Dec 20251,20976956.664.41$71,896
Nov 202586467458.593.93$53,268
Oct 20251,38199859.383.30$85,302
Sep 202572837962.743.08$46,841
Aug 202567730463.933.01$44,197
Jul 20251,36949166.743.32$92,995
Jun 20251,18836166.483.13$80,108
May 20251,02866360.553.23$64,388
Apr 20251,39777862.363.54$89,873
Mar 20251,53767067.704.27$106,915
Feb 20251,38298670.884.34$102,236
Jan 20251,01659974.324.28$78,072
Dec 20241,3871,12268.993.12$99,191
Nov 20241,9831,94269.052.20$141,196
Oct 20241,52975271.372.28$110,840
Sep 20241,37351669.612.36$96,795
Aug 202435173175.632.06$28,055
Jul 202485482579.932.15$70,031
Jun 20241,36249978.082.63$107,659
May 20241,497078.812.20$117,979
Apr 20241,88263684.451.66$159,990
Mar 20241,40662280.301.55$113,863
Feb 20241,56094376.091.78$120,382
Jan 202471167973.023.30$54,156
Dec 20231,4151,54371.262.61$104,861
Nov 20231,3821,50777.892.81$111,875
Oct 20231,4021,89385.443.09$125,631
Sep 20231,2231,26189.042.74$112,345
Aug 20231,0541,77780.522.67$89,618
Jul 20231,0012,20174.852.64$80,739
Jun 20231,4022,53668.962.26$102,409
May 20231,3712,66470.622.23$102,754
Apr 20231,3962,60778.122.24$114,889
Mar 20231,3602,66472.852.39$105,451
Feb 20231,2132,00575.112.47$96,052
Jan 20231,3722,27876.533.39$112,716
Dec 20221,7622,23076.415.73$147,410
Nov 20221,4112,21385.005.65$132,430
Oct 20221,7461,96087.185.86$163,709
Sep 20221,0591,88384.888.16$105,260
Aug 20221,6883,03794.529.13$187,269
Jul 20221,6903,366101.587.54$197,057
Jun 20221,7502,188115.097.98$218,862
May 20221,7283,073109.378.43$214,906
Apr 20222,0433,567104.226.84$237,311
Mar 20221,8973,144108.885.08$222,506
Feb 20221,5541,97891.054.86$151,102
Jan 20221,5621,85881.844.54$136,265
Dec 20212,1882,78871.323.90$166,919
Nov 20211,3661,35477.435.24$112,860
Oct 20211,7013,70179.795.71$156,870
Sep 20211,8582,92569.865.35$145,451
Aug 20211,3403,50266.024.22$103,247
Jul 20211,3532,38170.783.98$105,247
Jun 20211,0161,61069.493.38$76,045
May 20212,0211,83763.483.02$133,837
Apr 20211,3492,61460.362.76$88,636
Mar 20211,6891,83861.302.72$108,529
Feb 20211,5271,01157.805.55$93,870
Jan 20211,5392,09350.412.81$83,463
Dec 20201,35093344.642.68$62,760
Nov 20201,5301,48338.772.71$63,332
Oct 20202,0212,50236.972.48$80,917
Sep 20201,8622,26337.091.99$73,567
Aug 20202,5153,78939.982.39$109,587
Jul 20201,1761,11838.371.83$47,164
Jun 202050876634.901.69$19,024
May 20202,6993,30516.921.81$51,665
Apr 20202,0282,87714.751.80$35,104
Mar 20205151,82430.341.86$19,011
Feb 20201,8832,15249.881.98$98,186
Jan 20201,3661,68457.252.09$81,731
Dec 20192,1251,88559.012.30$129,740
Nov 20191,3761,60755.302.75$80,513
Oct 20191,6992,69353.472.42$97,359
Sep 20192,0313,44555.052.66$120,961
Aug 20192,0202,51353.112.30$113,073
Jul 20192,0342,46056.272.46$120,505
Jun 20191,7062,17452.782.49$95,459
May 20192,2422,84258.482.74$138,900
Apr 20197182,53262.632.75$51,933
Mar 20191,8212,31456.803.06$110,519
Feb 20191,2462,43150.852.79$70,147
Jan 20192,3402,95546.033.23$117,249
Dec 20182,1652,93046.594.19$113,131
Nov 20181,8102,24052.934.24$105,295
Oct 20181,7832,59061.443.40$118,349
Sep 20181,7692,23959.543.11$112,285
Aug 20181,54235259.403.07$92,674
Jul 20181,57471465.142.93$104,624
Jun 201851747760.183.08$32,581
May 201834751365.382.90$24,175
Apr 20181,2722,94863.842.90$89,756
Mar 20181,0552,38361.222.79$71,228
Feb 20181,5772,78361.782.77$105,125
Jan 20181,4023,60762.874.01$102,605
Dec 20171,9474,72857.272.92$125,318
Nov 20172,9625,76255.423.12$182,122
Oct 20172,1299,61549.292.98$133,626
Sep 20171,9207,11847.523.09$113,214
Aug 20172,1166,99345.373.00$117,013
Jul 20172,7707,62043.873.09$145,045
Jun 20172,97524542.493.09$127,164
May 20172,7931,22045.373.26$130,700
Apr 20172,1031,34147.933.21$105,104
Mar 20172,8031,91246.772.98$136,801
Feb 20172,9482,41450.452.95$155,854
Jan 20174,0822,41749.413.42$209,955
Dec 20163,7542,35448.763.72$191,809
Nov 20163,1672,65242.492.64$141,579
Oct 20162,2532,37146.193.09$111,393
Sep 20162,8162,12841.553.10$123,603
Aug 20163,4681,85641.442.92$149,142
Jul 20163,3021,89641.622.92$142,974
Jun 20163,8242,26745.352.69$179,507
May 20164,6602,04242.521.99$202,209
Apr 20162,0802,88636.561.99$81,791
Mar 20163,1673,65033.011.79$111,091
Feb 20162,6753,92426.472.06$78,905
Jan 20163,1461,75127.352.36$90,183
Dec 20153,4911,94732.362.00$116,866
Nov 20152,9544,87238.792.17$125,145
Oct 20153,1384,24243.552.43$146,953
Sep 20153,4524,42342.992.76$160,602
Aug 20153,7884,97840.162.87$166,425
Jul 20154,13611,36648.152.95$232,622
Jun 20154,82113,48156.152.88$309,563
May 20155,52514,18755.212.96$346,964
Apr 20155,19612,82349.822.71$293,571
Mar 20155,61510,78642.892.93$272,481
Feb 20154,44210,72044.662.98$230,284
Jan 20155,2519,69243.433.10$258,102
Dec 20144,8419,64854.693.59$299,404
Nov 20145,4049,92770.464.25$422,974
Oct 20145,55711,84278.303.90$481,308
Sep 20145,8701,88986.164.05$513,401
Aug 20146,72514,39689.394.04$659,237
Jul 20146,60615,11596.564.18$701,050
Jun 20145,51412,17398.164.74$598,916
May 20146,27413,95394.734.73$660,286
Apr 20147,35813,89095.944.81$772,725
Mar 20146,29510,74295.895.06$657,948
Feb 20146,29310,03597.406.19$675,075
Jan 20145,58111,17190.404.86$558,822
Dec 20135,20211,79291.824.35$528,996
Nov 20136,52713,07688.853.74$628,806
Oct 20133,52410,78497.423.78$384,065
Sep 20134,0179,207104.113.72$452,439
Aug 20133,3028,836104.253.52$375,359
Jul 20132,9087,141102.523.72$324,677
Jun 20133,2726,51794.403.93$334,511
May 20133,0918,34894.834.15$327,756
Apr 20132,6986,64393.964.28$281,953
Mar 20132,9667,34993.623.91$306,433
Feb 20132,9507,45591.233.42$294,624
Jan 20133,6938,80391.603.42$368,384
Dec 20123,6888,25386.773.42$348,234
Nov 20123,6828,77786.953.62$351,966
Oct 20123,7019,25989.383.40$362,273
Sep 20123,6549,33694.672.92$373,170
Aug 20124,22710,75692.662.91$422,954
Jul 20123,2628,11485.133.02$302,205
Jun 20124,0508,64779.822.52$345,053
May 20124,4029,63091.612.49$427,230
Apr 20125,17610,338101.652.00$546,783
Mar 20125,1809,078105.052.22$564,331
Feb 20124,0393,934101.102.57$418,454
Jan 20124,8587,76398.092.73$497,746
Dec 20113,5296,17696.873.24$361,863
Nov 20114,6498,97895.723.31$474,731
Oct 20115,59510,18184.983.65$512,609
Sep 20113,6524,96783.623.99$325,178
Aug 20112,5677,07583.404.15$243,444
Jul 20113,8176,88894.144.52$390,447
Jun 20113,6345,63892.904.64$363,758
May 20113,2946,57498.134.40$352,198
Apr 20112,5375,265105.964.33$291,635
Mar 20113,6175,01496.364.06$368,878
Feb 20112,7663,34485.644.18$250,858
Jan 20113,9243,63486.504.59$356,102

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                  342 bbl  × $106.41 =    $36,392
Casinghead gas        10 Mcf  × $  3.05 =        $30

────────────────────────────────────────────────────
Month total                                  $36,423

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. 08/O/40638 is the state's own key, not one this site invented.