CHALK, OTIS

Operated by SAHARA OPERATING COMPANY (P-5 743279) 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 41322District 08Field 42971200Hydrogen sulphide fieldOilSaveExport
Value, all time
$5.0 M
Dec 2011 – May 2026
Value, last 12 filed months
$235 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
OilDisposition73,229 bbl$4,975,730
Total$4,975,730

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 32.1423, -101.2445. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

32.14199, -101.24467 · 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
29.4%
5 of 17 wells
With a plug date
29.4%
5 of 17 wells
Median depth
3,000 ft
15 wells filed one
Completion to plug
48.7 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
529.4%
A plug date is filed
529.4%
BothOn the schedule and plugged. Neither fact cancels the other.
529.4%
NeitherNo plug date, and not on the schedule.
1270.6%

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 3,000 ft, with the middle half between 2,371 and 3,009 ft; the shallowest is 1,350 ft and the deepest 3,200 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, 11 of 17 wells, Jan 1939 – Sep 1996. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jan 1939 – Sep 1996
11 of 17 wells; 6 filed none
Plug dates filed
Oct 2019 – Jan 2024
5 of 17 wells; 12 filed none

Last completion to plug: a median of 48.7 years across the 3 wells that filed both dates, with the middle half between 37.8 years and 66.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

17 wells

42-2270225373,200 ftJan 2024Yes
42-2270225482,938 ftOct 2019Yes
42-2270099293,060 ft
42-227021574
42-22710842143,000 ft
42-2271086816
42-2273047952W3,010 ftSep 1996Aug 2023Yes
42-22780441172,402 ftJul 1974Mar 2023Yes
42-2273048256W3,006 ftOct 1973
42-227304843W3,008 ftOct 1973
42-22710867151,730 ftJan 1968
42-22710866131,731 ftJan 1968
42-22710816112,340 ftDec 1967
42-22710841123,000 ftNov 1967
42-22710817103,025 ftOct 1967
42-2270239221,350 ftSep 1961
42-2270225252,891 ftJan 1939Aug 2023Yes

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 202648498.932.87$47,882
Mar 202632089.753.15$28,720
Feb 202615963.503.75$10,097
Jan 2026059.138.00$0
Dec 202581056.664.41$45,895
Nov 2025058.593.93$0
Oct 202532459.383.30$19,239
Sep 202515662.743.08$9,787
Aug 202531863.933.01$20,330
Jul 202516066.743.32$10,678
Jun 202563866.483.13$42,414
May 202515760.553.23$9,506
Apr 202561562.363.54$38,351
Mar 2025067.704.27$0
Feb 202515470.884.34$10,916
Jan 202531074.324.28$23,039
Dec 202431968.993.12$22,008
Nov 202446769.052.20$32,246
Oct 2024071.372.28$0
Sep 202430369.612.36$21,092
Aug 202431775.632.06$23,975
Jul 202448879.932.15$39,006
Jun 202430578.082.63$23,814
May 202448378.812.20$38,065
Apr 202449084.451.66$41,381
Mar 202432380.301.55$25,937
Feb 202446576.091.78$35,382
Jan 202416073.023.30$11,683
Dec 202348171.262.61$34,276
Nov 202333177.892.81$25,782
Oct 2023085.443.09$0
Sep 202316389.042.74$14,514
Aug 202334380.522.67$27,618
Jul 2023074.852.64$0
Jun 2023068.962.26$0
May 202346670.622.23$32,909
Apr 202347078.122.24$36,716
Mar 202330472.852.39$22,146
Feb 202332175.112.47$24,110
Jan 202365576.533.39$50,127
Dec 202234376.415.73$26,209
Nov 202251185.005.65$43,435
Oct 202230987.185.86$26,939
Sep 202231984.888.16$27,077
Aug 202246894.529.13$44,235
Jul 20220101.587.54$0
Jun 2022475115.097.98$54,668
May 2022642109.378.43$70,216
Apr 2022471104.226.84$49,088
Mar 2022325108.885.08$35,386
Feb 202233891.054.86$30,775
Jan 202251281.844.54$41,902
Dec 202134371.323.90$24,463
Nov 202119077.435.24$14,712
Oct 202117679.795.71$14,043
Sep 202116469.865.35$11,457
Aug 202166166.024.22$43,639
Jul 202134270.783.98$24,207
Jun 202133469.493.38$23,210
May 202133463.483.02$21,202
Apr 202164960.362.76$39,174
Mar 202116761.302.72$10,237
Feb 202132157.805.55$18,554
Jan 202166550.412.81$33,523
Dec 202035444.642.68$15,803
Nov 202050838.772.71$19,695
Oct 202018436.972.48$6,802
Sep 202018337.091.99$6,787
Aug 202032939.982.39$13,153
Jul 202032538.371.83$12,470
Jun 202034634.901.69$12,075
May 202051016.921.81$8,629
Apr 202047014.751.80$6,933
Mar 202047630.341.86$14,442
Feb 202035649.881.98$17,757
Jan 2020057.252.09$0
Dec 2019059.012.30$0
Nov 2019055.302.75$0
Oct 201931153.472.42$16,629
Sep 201932155.052.66$17,671
Aug 2019053.112.30$0
Jul 201949256.272.46$27,685
Jun 201948152.782.49$25,387
May 201932858.482.74$19,181
Apr 201948062.632.75$30,062
Mar 201932256.803.06$18,290
Feb 201961850.852.79$31,425
Jan 201949446.033.23$22,739
Dec 201866546.594.19$30,982
Nov 201846652.934.24$24,665
Oct 201832561.443.40$19,968
Sep 201847459.543.11$28,222
Aug 201846859.403.07$27,799
Jul 201831365.142.93$20,389
Jun 201848760.183.08$29,308
May 201845665.382.90$29,813
Apr 201830363.842.90$19,344
Mar 201846361.222.79$28,345
Feb 201847561.782.77$29,346
Jan 201845862.874.01$28,794
Dec 201745957.272.92$26,287
Nov 201747055.423.12$26,047
Oct 201766149.292.98$32,581
Sep 201748447.523.09$23,000
Aug 201746845.373.00$21,233
Jul 201763843.873.09$27,989
Jun 201794942.493.09$40,323
May 201733845.373.26$15,335
Apr 201762747.933.21$30,052
Mar 201730846.772.98$14,405
Feb 201761250.452.95$30,875
Jan 201745349.413.42$22,383
Dec 201631048.763.72$15,116
Nov 201664042.492.64$27,194
Oct 201676346.193.09$35,243
Sep 2016041.553.10$0
Aug 201664241.442.92$26,604
Jul 201661741.622.92$25,680
Jun 2016045.352.69$0
May 201650042.521.99$21,260
Apr 201651736.561.99$18,902
Mar 201667433.011.79$22,249
Feb 201634326.472.06$9,079
Jan 201651227.352.36$14,003
Dec 201565932.362.00$21,325
Nov 201532838.792.17$12,723
Oct 201564143.552.43$27,916
Sep 201567442.992.76$28,975
Aug 201566540.162.87$26,706
Jul 201565148.152.95$31,346
Jun 201534256.152.88$19,203
May 201564855.212.96$35,776
Apr 201545549.822.71$22,668
Mar 201568142.892.93$29,208
Feb 201516644.662.98$7,414
Jan 201540943.433.10$17,763
Dec 201446954.693.59$25,650
Nov 201462270.464.25$43,826
Oct 201477178.303.90$60,369
Sep 201444686.164.05$38,427
Aug 201481589.394.04$72,853
Jul 201441596.564.18$40,072
Jun 201442098.164.74$41,227
May 201461694.734.73$58,354
Apr 201460095.944.81$57,564
Mar 201463795.895.06$61,082
Feb 201458297.406.19$56,687
Jan 201442090.404.86$37,968
Dec 201367691.824.35$62,070
Nov 2013088.853.74$0
Oct 201363097.423.78$61,375
Sep 2013452104.113.72$47,058
Aug 2013641104.253.52$66,824
Jul 2013736102.523.72$75,455
Jun 201346494.403.93$43,802
May 201370894.834.15$67,140
Apr 201365693.964.28$61,638
Mar 201340293.623.91$37,635
Feb 201327491.233.42$24,997
Jan 201376391.603.42$69,891
Dec 201245986.773.42$39,827
Nov 201239686.953.62$34,432
Oct 201263289.383.40$56,488
Sep 201271194.672.92$67,310
Aug 201242092.662.91$38,917
Jul 201257585.133.02$48,950
Jun 201257979.822.52$46,216
May 201267991.612.49$62,203
Apr 2012625101.652.00$63,531
Mar 2012672105.052.22$70,594
Feb 2012742101.102.57$75,016
Jan 201266198.092.73$64,837
Dec 2011096.873.24$0

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                  484 bbl  × $ 98.93 =    $47,882

────────────────────────────────────────────────────
Month total                                  $47,882

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/41322 is the state's own key, not one this site invented.