CASSELMAN4

Operated by APACHE CORPORATION (P-5 27200) in the SPRABERRY (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 38675District 08Field 85280300OilCasinghead gasSave
Value, all time
$206.7 M
Feb 2008 – May 2026
Value, last 12 filed months
$37.0 M
at the published price for each month
Months reported
220
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition2,665,718 bbl$184,129,206
Casinghead gasProduction6,539,504 Mcf$22,587,803
Total$206,717,009

Wells on this lease (34)

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 32.0597, -102.2364. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.2 miles.

32.06144, -102.23638 · 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%
2 of 34 wells
With a plug date
5.9%
2 of 34 wells
Median depth
10,810 ft
34 wells filed one
Completion to plug
14.9 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
25.9%
A plug date is filed
25.9%
BothOn the schedule and plugged. Neither fact cancels the other.
25.9%
NeitherNo plug date, and not on the schedule.
3294.1%

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

0k
2k
4k
6k
8k
10k
12k
15k
20k+

Total depth in feet, 34 of 34 wells. Median 10,810 ft, with the middle half between 9,321 and 10,850 ft; the shallowest is 8,633 ft and the deepest 10,915 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

00s
10s
20s

Last completion by decade, 34 of 34 wells, Feb 2008 – Jun 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 2008 – Jun 2025
34 of 34 wells
Plug dates filed
Aug 2025
2 of 34 wells; 32 filed none

Last completion to plug: a median of 14.9 years across the 2 wells that filed both dates, with the middle half between 14.9 years and 15.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

34 wells

42-32947420U 3HJ8,784 ftJun 2025
42-32947418U 1H9,866 ftJun 2025
42-32947419U 2H9,890 ftJun 2025
42-32947422U 4MS8,633 ftMay 2025
42-3294559315SH9,156 ftSep 2022
42-3294559416SH9,320 ftSep 2022
42-3294559517SH9,148 ftSep 2022
42-3294559618SH9,309 ftSep 2022
42-329421768UL9,189 ftOct 2018
42-329421779LL9,328 ftOct 2018
42-3294217810UL9,148 ftOct 2018
42-3294217911LL9,322 ftOct 2018
42-3294218012UL9,130 ftOct 2018
42-3294218113LL9,326 ftOct 2018
42-3293736813R10,850 ftSep 2011
42-32936969210,850 ftApr 2011
42-32936970110,870 ftApr 2011
42-329365372710,850 ftNov 2010
42-329365382610,795 ftNov 2010
42-329365321610,850 ftOct 2010Aug 2025Yes
42-329365362410,884 ftSep 2010
42-329365342210,840 ftSep 2010
42-329365352310,865 ftAug 2010Aug 2025Yes
42-329365091510,811 ftAug 2010
42-329365332110,830 ftAug 2010
42-329365392810,840 ftJul 2010
42-329365101210,808 ftJul 2010
42-329365111110,840 ftJun 2010
42-329365081410,850 ftJun 2010
42-32936506710,830 ftMay 2010
42-32936446410,794 ftMay 2010
42-32935964510,875 ftMay 2009
42-32936053610,915 ftDec 2008
42-3293566540310,834 ftFeb 2008

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 (220)

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

220 months

May 202619,44859,670106.413.05$2,251,207
Apr 20265,3455,21298.932.87$543,738
Mar 202626,32565,60889.753.15$2,569,297
Feb 202629,33574,64663.503.75$2,142,719
Jan 202635,62173,50659.138.00$2,694,165
Dec 202541,12874,75756.664.41$2,660,242
Nov 202541,95078,53358.593.93$2,766,206
Oct 202550,14089,77459.383.30$3,274,002
Sep 202558,08493,90862.743.08$3,933,138
Aug 202575,576104,16863.933.01$5,145,615
Jul 202576,55280,85966.743.32$5,377,144
Jun 202552,48748,85966.483.13$3,642,202
May 2025014560.553.23$469
Apr 202513911462.363.54$9,072
Mar 20259,63445,44667.704.27$846,200
Feb 20258,17740,02070.884.34$753,306
Jan 20259,40845,98774.324.28$895,966
Dec 202411,05450,19868.993.12$919,302
Nov 20247,26345,16469.052.20$600,800
Oct 202410,20549,63271.372.28$841,561
Sep 202410,00847,69169.612.36$809,416
Aug 202410,26848,04675.632.06$875,718
Jul 202412,51063,07979.932.15$1,135,329
Jun 202411,55257,00278.082.63$1,052,122
May 202415,39969,98578.812.20$1,367,453
Apr 202416,20165,25784.451.66$1,476,449
Mar 202417,75068,62780.301.55$1,531,363
Feb 202417,88264,32376.091.78$1,475,370
Jan 202420,46766,46173.023.30$1,713,666
Dec 202320,77460,87171.262.61$1,639,272
Nov 202321,15152,68677.892.81$1,795,371
Oct 202319,92446,84185.443.09$1,846,918
Sep 202322,01151,67589.042.74$2,101,193
Aug 202314,11932,82580.522.67$1,224,599
Jul 202314,85929,95774.852.64$1,191,337
Jun 202317,75838,33368.962.26$1,311,166
May 202322,71748,38170.622.23$1,712,038
Apr 202324,46153,11178.122.24$2,029,743
Mar 202328,62157,74172.852.39$2,223,223
Feb 202328,09652,37475.112.47$2,239,428
Jan 202336,67561,68676.533.39$3,015,713
Dec 202243,56565,80276.415.73$3,705,787
Nov 202254,80574,70085.005.65$5,080,196
Oct 202265,73973,29587.185.86$6,160,910
Sep 20224,4378,79784.888.16$448,428
Aug 20225,44529,49694.529.13$783,876
Jul 20225,02628,505101.587.54$725,528
Jun 20224,81129,093115.097.98$785,779
May 20225,98532,760109.378.43$930,846
Apr 20225,02232,035104.226.84$742,435
Mar 20226,85837,429108.885.08$936,704
Feb 20226,29934,27491.054.86$740,056
Jan 20226,82436,83881.844.54$725,635
Dec 20217,62139,92671.323.90$699,206
Nov 20217,74140,88877.435.24$813,510
Oct 20216,94837,96579.795.71$771,308
Sep 20217,29040,84869.865.35$727,854
Aug 20218,95746,03466.024.22$785,632
Jul 20219,95444,16670.783.98$880,417
Jun 20219,18239,91269.493.38$772,984
May 202110,03640,39163.483.02$758,972
Apr 20217,72231,50960.362.76$553,015
Mar 20219,14937,51161.302.72$662,749
Feb 20215,09521,53657.805.55$413,972
Jan 202110,17439,84050.412.81$624,833
Dec 20208,23639,19544.642.68$472,520
Nov 20208,16142,21138.772.71$430,649
Oct 20209,14344,65036.972.48$448,679
Sep 202011,36651,64937.091.99$524,400
Aug 202010,96650,88639.982.39$559,789
Jul 202012,38453,64138.371.83$573,075
Jun 202011,01547,66334.901.69$464,989
May 202011,97252,33616.921.81$297,543
Apr 202013,40355,62314.751.80$298,059
Mar 202014,76458,08230.341.86$555,753
Feb 202014,08156,08249.881.98$813,440
Jan 202016,20458,09457.252.09$1,049,371
Dec 201917,04859,96559.012.30$1,144,183
Nov 201917,22059,30955.302.75$1,115,407
Oct 201919,06063,05053.472.42$1,171,627
Sep 201919,24760,25255.052.66$1,219,654
Aug 201921,12766,03053.112.30$1,274,212
Jul 201923,93669,59856.272.46$1,518,094
Jun 201921,41461,73752.782.49$1,284,030
May 201927,08175,34058.482.74$1,790,153
Apr 201929,83577,66462.632.75$2,082,196
Mar 201934,22275,18356.803.06$2,174,027
Feb 201936,27881,45050.852.79$2,072,163
Jan 201949,999100,44246.033.23$2,625,699
Dec 201864,592116,18446.594.19$3,495,622
Nov 201899,636137,39952.934.24$5,855,926
Oct 201863,43154,05961.443.40$4,080,897
Sep 201825489859.543.11$17,914
Aug 20184782,09159.403.07$34,805
Jul 20185922,24265.142.93$45,136
Jun 20186622,86260.183.08$48,645
May 20188722,85465.382.90$65,290
Apr 20186202,83063.842.90$47,790
Mar 20186952,99161.222.79$50,883
Feb 20187422,79961.782.77$53,583
Jan 20189213,23662.874.01$70,877
Dec 20171,0613,30057.272.92$70,404
Nov 20171,5175,12155.423.12$100,041
Oct 20172,1027,25049.292.98$125,239
Sep 20171,9837,68447.523.09$117,955
Aug 20172,2338,15145.373.00$125,800
Jul 20172,0908,19543.873.09$116,989
Jun 20172,2668,29542.493.09$121,891
May 20172,5298,62645.373.26$142,891
Apr 20172,0538,24047.933.21$124,864
Mar 20172,4608,58646.772.98$140,672
Feb 20172,4627,59950.452.95$146,645
Jan 20172,4458,26849.413.42$149,074
Dec 20162,6687,99848.763.72$159,867
Nov 20162,4327,97142.492.64$124,414
Oct 20162,7118,96646.193.09$152,928
Sep 20162,6838,21141.553.10$136,938
Aug 20162,6378,98241.442.92$135,544
Jul 20162,6508,89641.622.92$136,308
Jun 20162,5008,90745.352.69$137,298
May 20162,7179,39342.521.99$134,229
Apr 20162,9109,32736.561.99$124,960
Mar 20162,7119,79233.011.79$107,057
Feb 20162,8029,06326.472.06$92,872
Jan 20163,4129,91927.352.36$116,770
Dec 20153,23210,24932.362.00$125,100
Nov 20153,0079,60038.792.17$137,448
Oct 20153,07810,74943.552.43$160,130
Sep 20153,59311,46942.992.76$186,099
Aug 20153,69612,16340.162.87$183,369
Jul 20153,62411,76448.152.95$209,142
Jun 20153,66011,49156.152.88$238,636
May 20153,76811,49855.212.96$242,013
Apr 20153,85710,60149.822.71$220,848
Mar 20153,9057,38442.892.93$189,155
Feb 20153,5508,72144.662.98$184,498
Jan 20153,4989,25643.433.10$180,618
Dec 20143,5269,67154.693.59$227,569
Nov 20143,63010,29670.464.25$299,547
Oct 20143,91011,95378.303.90$352,781
Sep 20143,96411,93186.164.05$389,804
Aug 20144,35813,07889.394.04$442,333
Jul 20144,46013,16296.564.18$485,670
Jun 20144,06612,37098.164.74$457,714
May 20144,53112,95794.734.73$490,464
Apr 20144,30312,49295.944.81$472,905
Mar 20144,65712,88595.895.06$511,717
Feb 20144,29311,56397.406.19$489,736
Jan 20144,67213,31390.404.86$487,060
Dec 20134,99010,81891.824.35$505,289
Nov 20135,00911,73388.853.74$488,911
Oct 20135,42312,51697.423.78$575,611
Sep 20135,07812,345104.113.72$574,566
Aug 20135,35514,534104.253.52$609,456
Jul 20135,68115,313102.523.72$639,346
Jun 20135,66014,77194.403.93$592,404
May 20135,86114,92594.834.15$617,724
Apr 20135,54513,41993.964.28$578,476
Mar 20136,97814,10593.623.91$708,471
Feb 20135,20112,75691.233.42$518,112
Jan 20137,29114,38791.603.42$717,058
Dec 20126,36514,76786.773.42$602,797
Nov 20126,90714,05386.953.62$651,505
Oct 20126,90515,65789.383.40$670,398
Sep 20127,03415,61394.672.92$711,474
Aug 20128,21516,01892.662.91$807,785
Jul 20126,77516,68785.133.02$627,164
Jun 20128,38515,44279.822.52$708,190
May 20128,93317,30891.612.49$861,420
Apr 20128,98620,047101.652.00$953,457
Mar 20128,45020,628105.052.22$933,510
Feb 20129,04419,752101.102.57$965,116
Jan 20129,90222,39398.092.73$1,032,511
Dec 201111,26025,66296.873.24$1,173,894
Nov 201110,30625,16395.723.31$1,069,812
Oct 201111,62229,58184.983.65$1,095,565
Sep 201110,96330,23783.623.99$1,037,245
Aug 201112,16736,27983.404.15$1,165,261
Jul 201115,76342,04694.144.52$1,673,861
Jun 201114,98637,55392.904.64$1,566,441
May 201115,35136,20398.134.40$1,665,861
Apr 201115,19938,687105.964.33$1,778,128
Mar 201118,47642,72796.364.06$1,953,705
Feb 201115,17024,40085.644.18$1,401,150
Jan 201123,34037,87486.504.59$2,192,705
Dec 201022,17531,51885.734.35$2,038,095
Nov 201021,35526,10180.843.80$1,825,400
Oct 201020,39528,26478.103.51$1,692,025
Sep 201018,45023,87372.633.98$1,435,025
Aug 201017,54221,24873.684.42$1,386,397
Jul 20109,48913,07972.554.74$750,376
Jun 20103,0056,74670.364.91$244,557
May 20103,0316,93471.124.24$244,932
Apr 20102,6266,32381.694.12$240,586
Mar 20102,3995,22978.394.39$211,006
Feb 20102,1124,75373.585.44$181,269
Jan 20103,4636,60574.365.96$296,901
Dec 20093,1594,77371.445.48$251,853
Nov 20092,6635,12374.593.75$217,852
Oct 20093,6427,28172.544.11$294,117
Sep 20093,6486,64465.543.06$259,452
Aug 20094,3808,12267.423.22$321,440
Jul 20094,6248,96361.133.46$313,717
Jun 20095,51810,34266.163.90$405,353
May 20094,8986,60854.743.93$294,058
Apr 20092,7644,05446.773.59$143,816
Mar 20097,23510,63442.144.06$348,046
Feb 20095,3454,63932.814.63$196,862
Jan 20094,2183,81835.865.37$171,764
Dec 20082,3192,73437.105.98$102,376
Nov 20082,2012,61255.496.86$140,053
Oct 20081,07680275.246.92$86,510
Sep 2008938940101.767.88$102,855
Aug 20081,4851,811114.228.48$184,979
Jul 20081,50912,417131.0811.39$339,222
Jun 20081,9914,757131.3313.03$323,474
May 20082,6564,955123.1711.57$384,490
Apr 20084,9074,207110.3110.45$585,275
Mar 20081,6151,555101.909.66$179,596
Feb 200821092.538.77$1,943

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               19,448 bbl  × $106.41 = $2,069,462
Casinghead gas    59,670 Mcf  × $  3.05 =   $181,745

────────────────────────────────────────────────────
Month total                               $2,251,207

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/38675 is the state's own key, not one this site invented.