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CHALK, SLOAN

Operated by CITATION OIL & GAS CORP. (P-5 154235) 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 41223District 08Field 42971200Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$17.1 M
Dec 2011 – May 2026
Value, last 12 filed months
$659 k
at the published price for each month
Months reported
174
no gaps in the span
Streams
2
oil, casinghead gas

The HOWARD GLASSCOCK (CONSOLIDATED) 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 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
OilDisposition243,829 bbl$16,860,940
Casinghead gasProduction87,072 Mcf$282,492
Total$17,143,432

Wells on this lease (18)

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 32.1277, -101.2520. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

32.12772, -101.25203 · 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
16.7%
3 of 18 wells
With a plug date
16.7%
3 of 18 wells
Median depth
3,200 ft
17 wells filed one
Completion to plug
40.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
316.7%
A plug date is filed
316.7%
BothOn the schedule and plugged. Neither fact cancels the other.
316.7%
NeitherNo plug date, and not on the schedule.
1583.3%

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

Total depth in feet, 17 of 18 wells. Median 3,200 ft, with the middle half between 2,500 and 3,850 ft; the shallowest is 2,270 ft and the deepest 7,980 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, 15 of 18 wells, Sep 1979 – May 2021. 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 1979 – May 2021
15 of 18 wells; 3 filed none
Plug dates filed
Apr 2014 – Jun 2026
3 of 18 wells; 15 filed none

Last completion to plug: a median of 40.8 years across the 1 well that filed both dates, with the middle half between 40.8 years and 40.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

18 wells

42-2270209172,976 ft—Apr 2014Yes
42-22702094103,200 ft—Jul 2023Yes
42-2270209612————
42-2271071116W2,270 ftMay 2021——
42-22739694304,347 ftMar 2019——
42-22734097272,500 ftAug 2015——
42-22730404203,000 ftMay 2015——
42-22734048253,200 ftMay 2015——
42-22736482324,246 ftJul 2013——
42-22736475314,217 ftMar 2013——
42-22735726297,980 ftJun 2012——
42-2273389422W3,200 ftMar 2010——
42-2273109921W2,320 ftJan 1991——
42-22734096282,500 ftFeb 1987——
42-22734095262,500 ftJan 1987——
42-22734049243,200 ftAug 1986——
42-2270209392,930 ftSep 1985Jun 2026Yes
42-22730331183,850 ftSep 1979——

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 2026963355106.413.05$103,554
Apr 202691139898.932.87$91,267
Mar 202694233789.753.15$85,606
Feb 202678739163.503.75$51,441
Jan 202671144259.138.00$45,577
Dec 202584131556.664.41$49,041
Nov 202565630458.593.93$39,629
Oct 202558230559.383.30$35,567
Sep 202553528462.743.08$34,440
Aug 202562336363.933.01$40,923
Jul 202559436766.743.32$40,860
Jun 202560135666.483.13$41,068
May 202564945860.553.23$40,777
Apr 202559518362.363.54$37,753
Mar 202576341867.704.27$53,439
Feb 202576043670.884.34$55,761
Jan 202589689474.324.28$70,416
Dec 202494994168.993.12$68,409
Nov 202492382069.052.20$65,536
Oct 202493877971.372.28$68,722
Sep 202488185669.612.36$63,350
Aug 202488277375.632.06$68,301
Jul 202484095379.932.15$69,187
Jun 202489499878.082.63$72,432
May 202493283878.812.20$75,293
Apr 202487782284.451.66$75,427
Mar 202491625580.301.55$73,949
Feb 202488221076.091.78$67,486
Jan 202476035673.023.30$56,669
Dec 20231,02136771.262.61$73,715
Nov 202393926077.892.81$73,869
Oct 202388242185.443.09$76,658
Sep 202390640089.042.74$81,764
Aug 20231,00042280.522.67$81,648
Jul 20231,01137374.852.64$76,659
Jun 20231,0258868.962.26$70,883
May 202397128870.622.23$69,214
Apr 202389239578.122.24$70,567
Mar 20231,03025572.852.39$75,646
Feb 202391522475.112.47$69,278
Jan 20239837176.533.39$75,470
Dec 202285139976.415.73$67,311
Nov 202282072085.005.65$73,765
Oct 202287073587.185.86$80,156
Sep 202292496084.888.16$86,266
Aug 202294218394.529.13$90,708
Jul 2022932519101.587.54$98,587
Jun 2022853374115.097.98$101,155
May 2022854504109.378.43$97,652
Apr 2022774216104.226.84$82,143
Mar 202288233108.885.08$96,200
Feb 202293336691.054.86$86,728
Jan 202292246881.844.54$77,580
Dec 20211,07328671.323.90$77,642
Nov 202192931577.435.24$73,582
Oct 20211,14444379.795.71$93,811
Sep 202192345669.865.35$66,921
Aug 202180347466.024.22$55,015
Jul 202186643270.783.98$63,016
Jun 202172839969.493.38$51,938
May 202164425363.483.02$41,645
Apr 20211,01229560.362.76$61,898
Mar 202189734361.302.72$55,918
Feb 202162214057.805.55$36,728
Jan 202192718450.412.81$47,247
Dec 20209396844.642.68$42,099
Nov 20201,0078438.772.71$39,269
Oct 20201,3878836.972.48$51,495
Sep 20201,42621237.091.99$53,312
Aug 202095525639.982.39$38,791
Jul 202074512738.371.83$28,817
Jun 20201,16720134.901.69$41,068
May 20201,09132916.921.81$19,057
Apr 20201,37721514.751.80$20,699
Mar 20201,32427330.341.86$40,677
Feb 20201,19729549.881.98$60,291
Jan 20201,27332857.252.09$73,566
Dec 20191,61649959.012.30$96,510
Nov 20191,72676155.302.75$97,541
Oct 20191,97778053.472.42$107,597
Sep 20191,87384355.052.66$105,349
Aug 20191,91977553.112.30$103,704
Jul 20192,00098656.272.46$114,966
Jun 20191,54685352.782.49$83,723
May 20192,05796358.482.74$122,932
Apr 20193,09875662.632.75$196,107
Mar 20192,5771,15856.803.06$149,920
Feb 201980960950.852.79$42,838
Jan 20191,06360046.033.23$50,867
Dec 201899743746.594.19$48,279
Nov 20181,58050552.934.24$85,769
Oct 201895836961.443.40$60,113
Sep 201885851659.543.11$52,689
Aug 20181,24071559.403.07$75,849
Jul 20181,14673065.142.93$76,791
Jun 20181,10374060.183.08$68,655
May 20181,01455565.382.90$67,905
Apr 20181,11257063.842.90$72,644
Mar 20181,55273261.222.79$97,053
Feb 20181,31447961.782.77$82,504
Jan 20181,66750862.874.01$106,841
Dec 20171,67758257.272.92$97,742
Nov 20171,84858955.423.12$104,253
Oct 20172,20470549.292.98$110,739
Sep 20172,30830147.523.09$110,605
Aug 20172,19174245.373.00$101,635
Jul 20171,93588643.873.09$87,624
Jun 20171,66183342.493.09$73,148
May 20171,74784345.373.26$82,012
Apr 20171,76785947.933.21$87,451
Mar 20171,70886346.772.98$82,458
Feb 20171,82379550.452.95$94,318
Jan 20171,8441,64949.413.42$96,750
Dec 20161,5371,64748.763.72$81,076
Nov 20161,29278742.492.64$56,978
Oct 20161,2291,33746.193.09$60,899
Sep 20161,3411,90541.553.10$61,625
Aug 20161,4982,07841.442.92$68,154
Jul 20161,41167641.622.92$60,703
Jun 20161,14632745.352.69$52,849
May 20161,54293342.521.99$67,423
Apr 20161,31333136.561.99$48,662
Mar 20161,245033.011.79$41,097
Feb 20161,21558126.472.06$33,360
Jan 20161,1991,04427.352.36$35,261
Dec 20151,10990732.362.00$37,703
Nov 20151,01693438.792.17$41,435
Oct 20151,4781,20243.552.43$67,284
Sep 20151,59258542.992.76$70,054
Aug 20151,503040.162.87$60,360
Jul 20151,529048.152.95$73,621
Jun 20151,543056.152.88$86,639
May 20151,505055.212.96$83,091
Apr 20151,541049.822.71$76,773
Mar 20152,2071,98842.892.93$100,492
Feb 20151,633044.662.98$72,930
Jan 20152,429043.433.10$105,491
Dec 20142,387054.693.59$130,545
Nov 20142,332070.464.25$164,313
Oct 20142,450078.303.90$191,835
Sep 20141,845086.164.05$158,965
Aug 20141,58020589.394.04$142,063
Jul 20141,708096.564.18$164,924
Jun 20142,305098.164.74$226,259
May 20142,021094.734.73$191,449
Apr 20142,713095.944.81$260,285
Mar 20143,034095.895.06$290,930
Feb 20142,973097.406.19$289,570
Jan 20143,443090.404.86$311,247
Dec 20132,561091.824.35$235,151
Nov 20133,417088.853.74$303,600
Oct 20133,609097.423.78$351,589
Sep 20131,952948104.113.72$206,747
Aug 20133,5091,864104.253.52$372,379
Jul 20131,435746102.523.72$149,890
Jun 20131,3231,16994.403.93$129,489
May 20131,59678894.834.15$154,618
Apr 20131,25617193.964.28$118,746
Mar 20131,1901,31693.623.91$116,557
Feb 20131,61599891.233.42$150,750
Jan 20131,56847291.603.42$145,243
Dec 20121,280086.773.42$111,066
Nov 20121,552486.953.62$134,961
Oct 20121,46420389.383.40$131,542
Sep 20121,63043694.672.92$155,585
Aug 20121,90722792.662.91$177,363
Jul 20122,24341285.133.02$192,191
Jun 20121,96843779.822.52$158,187
May 20122,00781091.612.49$185,877
Apr 20122,471905101.652.00$252,984
Mar 20122,733300105.052.22$287,768
Feb 20123,096443101.102.57$314,144
Jan 20122,7601298.092.73$270,761
Dec 201165711496.873.24$64,013

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                  963 bbl  × $106.41 =   $102,473
Casinghead gas       355 Mcf  × $  3.05 =     $1,081

────────────────────────────────────────────────────
Month total                                 $103,554

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/41223 is the state's own key, not one this site invented.