CHALK, OTIS

Operated by UNITEX OIL & GAS, L.L.C. (P-5 877921) 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 41051District 08Field 42971200Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$32.2 M
Dec 2011 – May 2026
Value, last 12 filed months
$1.6 M
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
OilDisposition482,712 bbl$32,153,097
Casinghead gasProduction26,572 Mcf$94,022
Total$32,247,118

Wells on this lease (37)

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 32.1093, -101.2807. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

32.11016, -101.28131 · 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
21.6%
8 of 37 wells
With a plug date
13.5%
5 of 37 wells
Median depth
3,158 ft
34 wells filed one
Completion to plug
26.4 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
821.6%
A plug date is filed
513.5%
BothOn the schedule and plugged. Neither fact cancels the other.
513.5%
NeitherNo plug date, and not on the schedule.
2978.4%

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, 34 of 37 wells. Median 3,158 ft, with the middle half between 2,420 and 3,204 ft; the shallowest is 1,830 ft and the deepest 5,206 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, 30 of 37 wells, Feb 1968 – Sep 2025. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Feb 1968 – Sep 2025
30 of 37 wells; 7 filed none
Plug dates filed
Apr 2014 – Sep 2024
5 of 37 wells; 32 filed none

Last completion to plug: a median of 26.4 years across the 4 wells that filed both dates, with the middle half between 22.4 years and 29.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

37 wells

42-22702715203,123 ftApr 2014Yes
42-2270269913,139 ft
42-2270270353,200 ft
42-2270270914W2,405 ft
42-2270271116
42-2270271419
42-2270427471,848 ft
42-22702716213,176 ftSep 2025
42-22734778L 11WR3,226 ftFeb 2019Yes
42-2270270813W2,402 ftFeb 2019
42-22739570464,250 ftJul 2018
42-22734713432,433 ftFeb 2018
42-22734710412,427 ftFeb 2018
42-227304949W2,418 ftJul 2012
42-22730386334,100 ftFeb 2012
42-2273047434R5,206 ftNov 2011
42-227303582W3,200 ftAug 1995
42-22733575393,200 ftDec 1994Apr 2014Yes
42-227303095W3,200 ftMar 1994Sep 2024Yes
42-227303106W3,107 ftMar 1994Yes
42-227303084W3,200 ftNov 1993Apr 2023Yes
42-22734779L 9WR3,233 ftAug 1993Yes
42-22702713183,200 ftApr 1993
42-22734714442,427 ftMar 1993
42-227347126R2,433 ftMar 1993
42-227347113R3,212 ftMar 1993
42-2273473522R2,433 ftMar 1993
42-227347152R3,224 ftMar 1993
42-22734734423,222 ftFeb 1993
42-22733576403,205 ftMay 1992
42-22702707122,372 ftMay 1992
42-2270355383,179 ftNov 1990Apr 2014Yes
42-227302957WJan 1983
42-22730815382,322 ftDec 1975
42-22730589361,847 ftMay 1974
42-22730588371,830 ftMay 1974
42-2270270241,832 ftFeb 1968

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 20262,1570106.413.05$229,526
Apr 20261,977098.932.87$195,585
Mar 20261,829089.753.15$164,153
Feb 20261,671063.503.75$106,109
Jan 20261,752059.138.00$103,596
Dec 20251,384056.664.41$78,417
Nov 20251,936058.593.93$113,430
Oct 20251,976059.383.30$117,335
Sep 20251,590062.743.08$99,757
Aug 20251,940063.933.01$124,024
Jul 20252,283066.743.32$152,367
Jun 20252,097066.483.13$139,409
May 20252,076060.553.23$125,702
Apr 20252,087062.363.54$130,145
Mar 20252,406067.704.27$162,886
Feb 20251,553070.884.34$110,077
Jan 20251,887074.324.28$140,242
Dec 20242,248068.993.12$155,090
Nov 20241,910069.052.20$131,886
Oct 20242,272071.372.28$162,153
Sep 20242,082069.612.36$144,928
Aug 20242,229075.632.06$168,579
Jul 20241,876079.932.15$149,949
Jun 20242,197078.082.63$171,542
May 20242,390078.812.20$188,356
Apr 20241,706084.451.66$144,072
Mar 20241,715080.301.55$137,715
Feb 20241,895076.091.78$144,191
Jan 20241,338073.023.30$97,701
Dec 20231,903071.262.61$135,608
Nov 20231,898077.892.81$147,835
Oct 20232,609085.443.09$222,913
Sep 20232,043089.042.74$181,909
Aug 20232,044080.522.67$164,583
Jul 20232,202074.852.64$164,820
Jun 20231,914068.962.26$131,989
May 20232,387070.622.23$168,570
Apr 20232,049078.122.24$160,068
Mar 20231,927072.852.39$140,382
Feb 20232,446075.112.47$183,719
Jan 20231,930076.533.39$147,703
Dec 20222,452076.415.73$187,357
Nov 20221,672085.005.65$142,120
Oct 20222,609087.185.86$227,453
Sep 20221,931084.888.16$163,903
Aug 20222,575094.529.13$243,389
Jul 20222,2590101.587.54$229,469
Jun 20222,5990115.097.98$299,119
May 20222,5790109.378.43$282,065
Apr 20222,4200104.226.84$252,212
Mar 20222,4250108.885.08$264,034
Feb 20221,913091.054.86$174,179
Jan 20222,435081.844.54$199,280
Dec 20212,725071.323.90$194,347
Nov 20212,264077.435.24$175,302
Oct 20212,592079.795.71$206,816
Sep 20212,459069.865.35$171,786
Aug 20212,910066.024.22$192,118
Jul 20212,089070.783.98$147,859
Jun 20212,616069.493.38$181,786
May 20212,763063.483.02$175,395
Apr 20212,432060.362.76$146,796
Mar 20212,745061.302.72$168,269
Feb 20211,669057.805.55$96,468
Jan 20212,933050.412.81$147,853
Dec 20202,377044.642.68$106,109
Nov 20202,543038.772.71$98,592
Oct 20202,611036.972.48$96,529
Sep 20203,118037.091.99$115,647
Aug 20202,078039.982.39$83,078
Jul 20202,901038.371.83$111,311
Jun 20202,614034.901.69$91,229
May 20202,970016.921.81$50,252
Apr 20202,927014.751.80$43,173
Mar 20203,101030.341.86$94,084
Feb 20202,769049.881.98$138,118
Jan 20203,130057.252.09$179,193
Dec 20193,463059.012.30$204,352
Nov 20193,635055.302.75$201,016
Oct 20193,309053.472.42$176,932
Sep 20193,117055.052.66$171,591
Aug 20193,797053.112.30$201,659
Jul 20193,454056.272.46$194,357
Jun 20194,553052.782.49$240,307
May 20192,906058.482.74$169,943
Apr 20193,423062.632.75$214,382
Mar 20193,771056.803.06$214,193
Feb 20193,824050.852.79$194,450
Jan 20194,441046.033.23$204,419
Dec 20184,128046.594.19$192,324
Nov 20183,590052.934.24$190,019
Oct 20184,899061.443.40$300,995
Sep 20184,342059.543.11$258,523
Aug 20183,955059.403.07$234,927
Jul 20183,251065.142.93$211,770
Jun 20183,706060.183.08$223,027
May 20184,101065.382.90$268,123
Apr 20183,693063.842.90$235,761
Mar 20183,293061.222.79$201,597
Feb 20182,810061.782.77$173,602
Jan 20182,740062.874.01$172,264
Dec 20172,287057.272.92$130,976
Nov 20172,4633155.423.12$136,596
Oct 20173,0073449.292.98$148,316
Sep 20172,6712247.523.09$126,994
Aug 20173,510045.373.00$159,249
Jul 20173,0161943.873.09$132,371
Jun 20172,5183042.493.09$107,082
May 20173,0253145.373.26$137,345
Apr 20172,9723047.933.21$142,544
Mar 20173,0623146.772.98$143,302
Feb 20173,163050.452.95$159,573
Jan 20172,7123149.413.42$134,106
Dec 20162,7383148.763.72$133,620
Nov 20162,7383042.492.64$116,417
Oct 20162,9323146.193.09$135,525
Sep 20162,9383041.553.10$122,167
Aug 20163,119041.442.92$129,251
Jul 20162,8123141.622.92$117,126
Jun 20162,8853045.352.69$130,915
May 20162,8253142.521.99$120,181
Apr 20163,3203036.561.99$121,439
Mar 20163,1903133.011.79$105,358
Feb 20162,8242926.472.06$74,811
Jan 20163,0303127.352.36$82,944
Dec 20153,3546032.362.00$108,656
Nov 20153,39066038.792.17$132,929
Oct 20153,80768243.552.43$167,450
Sep 20153,16557042.992.76$137,636
Aug 20153,39965140.162.87$138,374
Jul 20153,15255848.152.95$153,412
Jun 20153,17357056.152.88$179,807
May 20153,23146555.212.96$179,758
Apr 20152,59948049.822.71$130,781
Mar 20153,134342.892.93$134,426
Feb 20152,800044.662.98$125,048
Jan 20153,240043.433.10$140,713
Dec 20143,085054.693.59$168,719
Nov 20143,0587270.464.25$215,773
Oct 20143,5351078.303.90$276,830
Sep 20143,58817786.164.05$309,858
Aug 20143,72662889.394.04$335,601
Jul 20143,81530396.564.18$369,643
Jun 20141,76314398.164.74$173,733
May 20142,74016094.734.73$260,316
Apr 20142,85527595.944.81$275,231
Mar 20142,9441,79095.895.06$291,352
Feb 20142,8461,32397.406.19$285,392
Jan 20142,50052490.404.86$228,547
Dec 20133,06749891.824.35$283,780
Nov 20132,93145888.853.74$262,131
Oct 20132,82735797.423.78$276,756
Sep 20133,230636104.113.72$338,640
Aug 20133,175822104.253.52$333,889
Jul 20133,071801102.523.72$317,817
Jun 20132,84275394.403.93$271,247
May 20133,34363894.834.15$319,664
Apr 20132,82751293.964.28$267,818
Mar 20133,03753893.623.91$286,429
Feb 20132,57626091.233.42$235,898
Jan 20132,91037591.603.42$267,838
Dec 20123,01315186.773.42$261,954
Nov 20122,94777086.953.62$259,033
Oct 20122,57680089.383.40$232,963
Sep 20123,18187994.672.92$303,711
Aug 20123,37980692.662.91$315,442
Jul 20123,15689785.133.02$271,380
Jun 20122,89787279.822.52$233,435
May 20123,60181891.612.49$331,923
Apr 20123,416551101.652.00$348,337
Mar 20122,997243105.052.22$315,375
Feb 20123,166296101.102.57$320,843
Jan 20122,77189098.092.73$274,241
Dec 20113,9031,25396.873.24$382,143

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                2,157 bbl  × $106.41 =   $229,526
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                 $229,526

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/41051 is the state's own key, not one this site invented.