CHALK

Operated by GTG OPERATING, LLC (P-5 337080) in the HOWARD GLASSCOCK (CONSOLIDATED) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 42219District 08Field 42971200Hydrogen sulphide fieldOilSaveExport
Value, all time
$6.5 M
Dec 2011 – May 2026
Value, last 12 filed months
$225 k
at the published price for each month
Months reported
174
no gaps in the span
Streams
1
oil

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 231 leases and 2,805 wells, and the rule below applies to all of them.

Discovered
2011-11-22
as the register files it
Field class
Oil
the register's own label
Between wells
0 ft
minimum
From a lease line
200 ft
minimum

A drilling unit in this field needs at least 5 acres. The field rule took effect on 2014-01-07.

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.

The Commission's schedule remark for this field reads: P-15'S, ACRES LIST, AND LEASE PLATS 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
OilDisposition94,250 bbl$6,469,001
Total$6,469,001

Wells on this lease (9)

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 32.0942, -101.2818. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

32.09419, -101.28175 · 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 9 wells
With a plug date
0.0%
0 of 9 wells
Median depth
3,220 ft
7 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.
9100.0%

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, 7 of 9 wells. Median 3,220 ft, with the middle half between 2,837 and 3,257 ft; the shallowest is 1,947 ft and the deepest 3,336 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, 7 of 9 wells, Sep 1965 – Nov 2008. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Sep 1965 – Nov 2008
7 of 9 wells; 2 filed none

9 wells

42-227102491
42-227102512
42-2271055883,264 ftNov 2008
42-2271055773,336 ftJan 2003
42-2271025253,250 ftNov 2002
42-227105566W2,455 ftAug 2002
42-2271078791,947 ftJul 1967
42-2271055543,219 ftNov 1965
42-2271032633,220 ftSep 1965

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 (174)

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

174 months

May 20260106.413.05$0
Apr 202612798.932.87$12,564
Mar 202615889.753.15$14,181
Feb 2026063.503.75$0
Jan 2026059.138.00$0
Dec 202533356.664.41$18,868
Nov 202549958.593.93$29,236
Oct 202533659.383.30$19,952
Sep 202550362.743.08$31,558
Aug 202550163.933.01$32,029
Jul 202551166.743.32$34,104
Jun 202548766.483.13$32,376
May 202549060.553.23$29,670
Apr 202551162.363.54$31,866
Mar 202550267.704.27$33,985
Feb 202515570.884.34$10,986
Jan 202515574.324.28$11,520
Dec 202448868.993.12$33,667
Nov 202448569.052.20$33,489
Oct 202448271.372.28$34,400
Sep 202433069.612.36$22,971
Aug 202449675.632.06$37,512
Jul 202450079.932.15$39,965
Jun 202416478.082.63$12,805
May 202448778.812.20$38,380
Apr 202450284.451.66$42,394
Mar 202447980.301.55$38,464
Feb 202448376.091.78$36,751
Jan 202447073.023.30$34,319
Dec 202352371.262.61$37,269
Nov 202315477.892.81$11,995
Oct 202332185.443.09$27,426
Sep 202351189.042.74$45,499
Aug 202348280.522.67$38,811
Jul 202346574.852.64$34,805
Jun 202363668.962.26$43,859
May 202346770.622.23$32,980
Apr 202331478.122.24$24,530
Mar 202346672.852.39$33,948
Feb 202364675.112.47$48,521
Jan 202362076.533.39$47,449
Dec 202231776.415.73$24,222
Nov 202261685.005.65$52,360
Oct 202262087.185.86$54,052
Sep 202250084.888.16$42,440
Aug 202261694.529.13$58,224
Jul 2022467101.587.54$47,438
Jun 2022616115.097.98$70,895
May 2022771109.378.43$84,324
Apr 2022474104.226.84$49,400
Mar 2022626108.885.08$68,159
Feb 202232291.054.86$29,318
Jan 202248081.844.54$39,283
Dec 202147171.323.90$33,592
Nov 202147577.435.24$36,779
Oct 202146779.795.71$37,262
Sep 202163669.865.35$44,431
Aug 202146266.024.22$30,501
Jul 202163170.783.98$44,662
Jun 202162869.493.38$43,640
May 202162963.483.02$39,929
Apr 202132460.362.76$19,557
Mar 202131161.302.72$19,064
Feb 202115357.805.55$8,843
Jan 202147150.412.81$23,743
Dec 202047044.642.68$20,981
Nov 202063638.772.71$24,658
Oct 202047036.972.48$17,376
Sep 202062837.091.99$23,293
Aug 202047539.982.39$18,991
Jul 202048438.371.83$18,571
Jun 202015634.901.69$5,444
May 2020016.921.81$0
Apr 202063514.751.80$9,366
Mar 202064430.341.86$19,539
Feb 202049349.881.98$24,591
Jan 202066757.252.09$38,186
Dec 201948359.012.30$28,502
Nov 201948355.302.75$26,710
Oct 201964053.472.42$34,221
Sep 201948155.052.66$26,479
Aug 201964653.112.30$34,309
Jul 201949256.272.46$27,685
Jun 201916052.782.49$8,445
May 201951558.482.74$30,117
Apr 201932562.632.75$20,355
Mar 201963556.803.06$36,068
Feb 201964550.852.79$32,798
Jan 201966146.033.23$30,426
Dec 201848946.594.19$22,783
Nov 201849252.934.24$26,042
Oct 201833461.443.40$20,521
Sep 201866759.543.11$39,713
Aug 201849059.403.07$29,106
Jul 201867965.142.93$44,230
Jun 201848260.183.08$29,007
May 201865665.382.90$42,889
Apr 201868363.842.90$43,603
Mar 201852161.222.79$31,896
Feb 201849561.782.77$30,581
Jan 201850262.874.01$31,561
Dec 201749857.272.92$28,520
Nov 201749855.423.12$27,599
Oct 201767449.292.98$33,221
Sep 201733347.523.09$15,824
Aug 201763845.373.00$28,946
Jul 201751243.873.09$22,461
Jun 201751142.493.09$21,712
May 201766845.373.26$30,307
Apr 201747647.933.21$22,815
Mar 201799046.772.98$46,302
Feb 201732550.452.95$16,396
Jan 201765449.413.42$32,314
Dec 201668548.763.72$33,401
Nov 201665142.492.64$27,661
Oct 201663746.193.09$29,423
Sep 201668241.553.10$28,337
Aug 201667241.442.92$27,848
Jul 201666541.622.92$27,677
Jun 201648645.352.69$22,040
May 201650042.521.99$21,260
Apr 201648836.561.99$17,841
Mar 201667833.011.79$22,381
Feb 201668726.472.06$18,185
Jan 201652527.352.36$14,359
Dec 201571132.362.00$23,008
Nov 201568838.792.17$26,688
Oct 201551043.552.43$22,211
Sep 201552642.992.76$22,613
Aug 201569340.162.87$27,831
Jul 201567548.152.95$32,501
Jun 201565956.152.88$37,003
May 201568455.212.96$37,764
Apr 201566849.822.71$33,280
Mar 201567342.892.93$28,865
Feb 201550044.662.98$22,330
Jan 201533443.433.10$14,506
Dec 201469554.693.59$38,010
Nov 201452170.464.25$36,710
Oct 201471178.303.90$55,671
Sep 201453186.164.05$45,751
Aug 201453289.394.04$47,555
Jul 201453196.564.18$51,273
Jun 201470298.164.74$68,908
May 201453094.734.73$50,207
Apr 201471395.944.81$68,405
Mar 20141,04395.895.06$100,013
Feb 201452897.406.19$51,427
Jan 201470890.404.86$64,003
Dec 201317591.824.35$16,069
Nov 201369988.853.74$62,106
Oct 201369797.423.78$67,902
Sep 2013696104.113.72$72,461
Aug 2013697104.253.52$72,662
Jul 2013862102.523.72$88,372
Jun 201370194.403.93$66,174
May 201387694.834.15$83,071
Apr 201369093.964.28$64,832
Mar 201351993.623.91$48,589
Feb 201369991.233.42$63,770
Jan 201383391.603.42$76,303
Dec 201284186.773.42$72,974
Nov 20121,01786.953.62$88,428
Oct 201283589.383.40$74,632
Sep 20121,01894.672.92$96,374
Aug 201299692.662.91$92,289
Jul 20121,00585.133.02$85,556
Jun 201266179.822.52$52,761
May 201282991.612.49$75,945
Apr 2012669101.652.00$68,004
Mar 2012514105.052.22$53,996
Feb 2012488101.102.57$49,337
Jan 201284498.092.73$82,788
Dec 201145496.873.24$43,979

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.

Apr 2026 — as filed, then multipliedworked
Oil                  127 bbl  × $ 98.93 =    $12,564

────────────────────────────────────────────────────
Month total                                  $12,564

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/42219 is the state's own key, not one this site invented.