CHALK, OTIS

Operated by APACHE CORPORATION (P-5 27200) 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 46457District 08Field 42971200Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$21.4 M
Dec 2011 – May 2026
Value, last 12 filed months
$553 k
at the published price for each month
Months reported
174
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 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
OilDisposition298,462 bbl$21,165,947
Casinghead gasProduction71,623 Mcf$234,136
Total$21,400,083

Wells on this lease (17)

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 32.1063, -101.2901. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

32.10618, -101.28995 · 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
5.9%
1 of 17 wells
With a plug date
5.9%
1 of 17 wells
Median depth
3,400 ft
15 wells filed one
Completion to plug
44.3 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
15.9%
A plug date is filed
15.9%
BothOn the schedule and plugged. Neither fact cancels the other.
15.9%
NeitherNo plug date, and not on the schedule.
1694.1%

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, 15 of 17 wells. Median 3,400 ft, with the middle half between 3,385 and 3,601 ft; the shallowest is 3,050 ft and the deepest 3,930 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, 16 of 17 wells, Jun 1938 – Jan 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
Jun 1938 – Jan 2012
16 of 17 wells; 1 filed none
Plug dates filed
Nov 2016
1 of 17 wells; 16 filed none

Last completion to plug: a median of 44.3 years across the 1 well that filed both dates, with the middle half between 44.3 years and 44.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

17 wells

42-227041036
42-2273571823W3,400 ftJan 2012
42-2273571422W3,400 ftSep 2011
42-2273571724W3,400 ftAug 2011
42-2273572025W3,400 ftAug 2011
42-2273571521W3,400 ftJun 2011
42-2273571620W3,400 ftJun 2011
42-227356791419R3,402 ftMar 2010
42-22733267133,800 ftJan 2002
42-2273507114163,800 ftDec 2001
42-2273507013153,800 ftJul 2001
42-227353215W3,360 ftDec 1998
42-2273507213173,370 ftJan 1998
42-22730366123,930 ftJul 1972Nov 2016Yes
42-2270410493,050 ftOct 1966
42-2270410510Feb 1960
42-2270410273,200 ftJun 1938

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 20265140106.413.05$54,695
Apr 2026503098.932.87$49,762
Mar 2026818089.753.15$73,416
Feb 2026674063.503.75$42,799
Jan 2026691059.138.00$40,859
Dec 2025362056.664.41$20,511
Nov 2025840058.593.93$49,216
Oct 2025501059.383.30$29,749
Sep 2025899062.743.08$56,403
Aug 2025854063.933.01$54,596
Jul 2025697066.743.32$46,518
Jun 2025517066.483.13$34,370
May 2025345060.553.23$20,890
Apr 2025168062.363.54$10,476
Mar 2025646067.704.27$43,734
Feb 2025469070.884.34$33,243
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 2024108075.632.06$8,168
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 2024530084.451.66$44,759
Mar 2024912080.301.55$73,234
Feb 2024742076.091.78$56,459
Jan 2024885073.023.30$64,623
Dec 20231,067071.262.61$76,034
Nov 2023952077.892.81$74,151
Oct 20231,070085.443.09$91,421
Sep 2023874089.042.74$77,821
Aug 20231,354080.522.67$109,024
Jul 20231,063074.852.64$79,566
Jun 20231,032068.962.26$71,167
May 20231,059070.622.23$74,787
Apr 20231,030078.122.24$80,464
Mar 20231,246072.852.39$90,771
Feb 2023882075.112.47$66,247
Jan 20231,089076.533.39$83,341
Dec 2022996076.415.73$76,104
Nov 20221,040085.005.65$88,400
Oct 2022945087.185.86$82,385
Sep 20221,008084.888.16$85,559
Aug 20221,369094.529.13$129,398
Jul 20221,0760101.587.54$109,300
Jun 20221,1670115.097.98$134,310
May 20221,3270109.378.43$145,134
Apr 20221,2250104.226.84$127,670
Mar 20221,2010108.885.08$130,765
Feb 20221,210091.054.86$110,171
Jan 20221,486081.844.54$121,614
Dec 20211,336071.323.90$95,284
Nov 20211,435077.435.24$111,112
Oct 20211,229079.795.71$98,062
Sep 20211,527069.865.35$106,676
Aug 20211,067066.024.22$70,443
Jul 20211,269070.783.98$89,820
Jun 2021232069.493.38$16,122
May 2021310063.483.02$19,679
Apr 20210060.362.76$0
Mar 2021154061.302.72$9,440
Feb 2021160057.805.55$9,248
Jan 2021165050.412.81$8,318
Dec 20200044.642.68$0
Nov 2020156038.772.71$6,048
Oct 2020169036.972.48$6,248
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20201,018034.901.69$35,528
May 20201,608016.921.81$27,207
Apr 20201,554014.751.80$22,922
Mar 20201,759030.341.86$53,368
Feb 20201,581049.881.98$78,860
Jan 20201,553057.252.09$88,909
Dec 20191,976059.012.30$116,604
Nov 20191,666055.302.75$92,130
Oct 20191,556053.472.42$83,199
Sep 20191,717055.052.66$94,521
Aug 20191,577053.112.30$83,754
Jul 20191,822056.272.46$102,524
Jun 20191,582052.782.49$83,498
May 20191,656058.482.74$96,843
Apr 20191,796062.632.75$112,483
Mar 20191,874056.803.06$106,443
Feb 20191,460050.852.79$74,241
Jan 20191,78645946.033.23$83,691
Dec 20181,67850646.594.19$80,296
Nov 20181,73043552.934.24$93,412
Oct 20181,51844161.443.40$94,764
Sep 20181,65443759.543.11$99,837
Aug 20181,91246259.403.07$114,990
Jul 20181,76946165.142.93$116,584
Jun 20181,86848060.183.08$113,893
May 20182,04449665.382.90$135,076
Apr 20181,76150063.842.90$113,873
Mar 20181,96551661.222.79$121,735
Feb 20181,75748461.782.77$109,886
Jan 20181,84950562.874.01$118,271
Dec 20171,84346957.272.92$106,919
Nov 20172,06258155.423.12$116,088
Oct 20171,78666149.292.98$90,004
Sep 20171,95465047.523.09$94,861
Aug 20172,23166545.373.00$103,218
Jul 20172,16169743.873.09$96,955
Jun 20171,92979242.493.09$84,408
May 20172,08981345.373.26$97,431
Apr 20172,25479047.933.21$110,571
Mar 20172,58381846.772.98$123,248
Feb 20172,45673750.452.95$126,081
Jan 20172,41081649.413.42$121,868
Dec 20161,71881348.763.72$86,796
Nov 20162,24280042.492.64$97,378
Oct 20161,92082546.193.09$91,234
Sep 20161,89678641.553.10$81,216
Aug 20162,26178441.442.92$95,989
Jul 20162,36885041.622.92$101,042
Jun 20162,10283845.352.69$97,576
May 20162,23384642.521.99$96,632
Apr 20162,25687636.561.99$84,224
Mar 20162,00183533.011.79$67,551
Feb 20161,99677126.472.06$54,425
Jan 20162,40482527.352.36$67,700
Dec 20152,17586132.362.00$72,106
Nov 20152,02281538.792.17$80,200
Oct 20152,30383643.552.43$102,324
Sep 20152,21481542.992.76$97,428
Aug 20152,40084040.162.87$98,797
Jul 20152,14683948.152.95$105,801
Jun 20152,10680556.152.88$120,573
May 20152,56384255.212.96$143,992
Apr 20152,78680449.822.71$140,975
Mar 20152,57683142.892.93$112,923
Feb 20152,12372344.662.98$96,965
Jan 20152,55085843.433.10$113,407
Dec 20142,54973254.693.59$142,034
Nov 20142,51374270.464.25$180,221
Oct 20143,42093078.303.90$271,414
Sep 20143,27390086.164.05$285,643
Aug 20143,36793089.394.04$304,729
Jul 20142,70093096.564.18$264,599
Jun 20142,82487098.164.74$281,325
May 20143,09693094.734.73$297,680
Apr 20143,06090095.944.81$297,905
Mar 20143,08893095.895.06$300,811
Feb 20142,84384097.406.19$282,109
Jan 20143,41893090.404.86$313,508
Dec 20131,50193091.824.35$141,871
Nov 20132,77090088.853.74$249,479
Oct 20133,49490397.423.78$343,798
Sep 20133,143923104.113.72$330,649
Aug 20133,854963104.253.52$405,172
Jul 20133,598851102.523.72$372,031
Jun 20133,28381294.403.93$313,109
May 20133,39783794.834.15$325,610
Apr 20133,13186793.964.28$297,902
Mar 20133,4301,04893.623.91$325,217
Feb 20133,1471,00291.233.42$290,528
Jan 20133,39399191.603.42$314,188
Dec 20123,8601,19086.773.42$339,002
Nov 20123,3441,14086.953.62$294,893
Oct 20123,1401,10189.383.40$284,396
Sep 20123,2731,04294.672.92$312,896
Aug 20123,5981,32192.662.91$337,232
Jul 20123,4091,25585.133.02$293,999
Jun 20123,6021,19779.822.52$290,527
May 20123,3691,35291.612.49$311,998
Apr 20123,7721,325101.652.00$386,070
Mar 20124,082998105.052.22$431,032
Feb 20123,216577101.102.57$326,621
Jan 20122,9281,13098.092.73$290,297
Dec 20113,7602,01596.873.24$370,759

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                  514 bbl  × $106.41 =    $54,695
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $54,695

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/46457 is the state's own key, not one this site invented.