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DUSEK 4

Operated by PIONEER NATURAL RES. USA, INC. (P-5 665748) 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 17817District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$59.3 M
Feb 2012 – May 2026
Value, last 12 filed months
$35 k
at the published price for each month
Months reported
172
no gaps in the span
Streams
2
oil, casinghead gas

The SPRABERRY (TREND AREA) 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 7,461 leases and 22,481 wells, and the rule below applies to all of them.

Discovered
1904-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2016-03-08.

The Commission's schedule remark for this field reads: “AREA) 85279200.”

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
OilDisposition626,258 bbl$45,224,572
Casinghead gasProduction4,182,068 Mcf$14,044,717
Total$59,269,289

Wells on this lease (9)

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 31.6365, -101.9944. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.0 miles.

31.63530, -101.99448 · centre of 8 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
22.2%
2 of 9 wells
With a plug date
22.2%
2 of 9 wells
Median depth
11,988 ft
9 wells filed one
Completion to plug
11.5 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
222.2%
A plug date is filed
222.2%
BothOn the schedule and plugged. Neither fact cancels the other.
222.2%
NeitherNo plug date, and not on the schedule.
777.8%

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, 9 of 9 wells. Median 11,988 ft, with the middle half between 11,973 and 11,994 ft; the shallowest is 10,472 ft and the deepest 12,200 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, 9 of 9 wells, Feb 2012 – Feb 2013. 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 2012 – Feb 2013
9 of 9 wells
Plug dates filed
Jul 2022 – Aug 2025
2 of 9 wells; 7 filed none

Last completion to plug: a median of 11.5 years across the 2 wells that filed both dates, with the middle half between 10.6 years and 12.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

9 wells

42-461383821211,986 ftFeb 2013——
42-46138346811,988 ftFeb 2013——
42-461383861111,958 ftJan 2013——
42-46138384711,994 ftJan 2013——
42-46137848511,992 ftNov 2012Jul 2022Yes
42-46137847112,040 ftJun 2012——
42-46137953611,973 ftMay 2012Aug 2025Yes
42-46137841412,200 ftMar 2012——
42-46137730310,472 ftFeb 2012——

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 (172)

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

172 months

May 202600106.413.05$0
Apr 202633098.932.87$3,265
Mar 20267089.753.15$628
Feb 202622063.503.75$1,397
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 202567058.593.93$3,926
Oct 202514059.383.30$831
Sep 20250062.743.08$0
Aug 20253063.933.01$192
Jul 202515054666.743.32$11,821
Jun 202515378466.483.13$12,624
May 202510938560.553.23$7,844
Apr 202517127562.363.54$11,638
Mar 20259811667.704.27$7,130
Feb 20250070.884.34$0
Jan 202530135374.324.28$23,881
Dec 202427869568.993.12$21,349
Nov 20240069.052.20$0
Oct 202430038271.372.28$22,282
Sep 202442480469.612.36$31,416
Aug 202453383875.632.06$42,040
Jul 202452766979.932.15$43,559
Jun 20241881,00778.082.63$17,331
May 20242238778.812.20$2,585
Apr 20241707684.451.66$14,483
Mar 20244441,26680.301.55$37,609
Feb 20241,6964,31176.091.78$136,738
Jan 20242,0377,19073.023.30$172,452
Dec 20232,2272,38971.262.61$164,933
Nov 20232,01695277.892.81$159,699
Oct 20233,16410,48285.443.09$302,693
Sep 20231,5369,09289.042.74$161,632
Aug 20238217,86480.522.67$87,126
Jul 20231,0567,58774.852.64$99,085
Jun 20231,25610,40768.962.26$110,118
May 20231,3079,54170.622.23$113,552
Apr 20239118,40378.122.24$89,971
Mar 20239668,32072.852.39$90,284
Feb 20238837,85375.112.47$85,685
Jan 20237547,30676.533.39$82,454
Dec 20226456,83476.415.73$88,437
Nov 20226528,11685.005.65$101,245
Oct 20226868,85787.185.86$111,741
Sep 20221,2688,35684.888.16$175,844
Aug 20221,2488,51994.529.13$195,715
Jul 20227136,596101.587.54$122,174
Jun 20221,4469,739115.097.98$244,110
May 20221,2188,914109.378.43$208,385
Apr 20221,2238,626104.226.84$186,442
Mar 20221,5709,927108.885.08$221,335
Feb 20221,3197,95291.054.86$158,732
Jan 20221,0998,28581.844.54$127,537
Dec 20211,94110,44271.323.90$179,147
Nov 20211,2708,81677.435.24$144,504
Oct 20211,76210,57479.795.71$201,008
Sep 20211,4569,28069.865.35$151,373
Aug 20211,6379,11666.024.22$146,550
Jul 20211,5287,33270.783.98$137,348
Jun 20211,55910,38669.493.38$143,446
May 20218896,05063.483.02$74,691
Apr 20219256,57560.362.76$73,970
Mar 20218757,67661.302.72$74,493
Feb 20211,10512,85957.805.55$135,210
Jan 20211,67517,96850.412.81$134,932
Dec 20201,83720,06544.642.68$135,687
Nov 20202,34220,83438.772.71$147,188
Oct 20202,30120,02636.972.48$134,701
Sep 20201,73318,35137.091.99$100,815
Aug 20201,69519,93039.982.39$115,301
Jul 20202,10521,76938.371.83$120,500
Jun 20202,06420,49734.901.69$106,680
May 20202,13920,60716.921.81$73,588
Apr 20202,05317,77514.751.80$62,355
Mar 20202,42618,82730.341.86$108,552
Feb 20201,97417,57849.881.98$133,279
Jan 20201,67023,07657.252.09$143,946
Dec 20192,94425,33559.012.30$232,106
Nov 20192,71724,47755.302.75$217,579
Oct 20192,85625,28253.472.42$213,856
Sep 20192,58026,24755.052.66$211,775
Aug 20192,68827,40953.112.30$205,920
Jul 20192,92628,28456.272.46$234,226
Jun 20193,66228,31652.782.49$263,821
May 20193,65928,12458.482.74$291,047
Apr 20193,25824,41162.632.75$271,196
Mar 20193,04921,32956.803.06$238,495
Feb 20192,28916,29150.852.79$161,884
Jan 20191,63111,13446.033.23$111,017
Dec 20183,16316,93646.594.19$218,249
Nov 20182,88115,97352.934.24$220,173
Oct 20181,91910,03961.443.40$152,017
Sep 20182,35916,23259.543.11$190,904
Aug 20182,79618,93159.403.07$224,135
Jul 20182,75416,44965.142.93$227,622
Jun 20182,68417,16960.183.08$214,351
May 20182,68419,74165.382.90$232,745
Apr 20182,95117,48363.842.90$239,107
Mar 20182,91218,25661.222.79$229,149
Feb 20182,83719,66161.782.77$229,655
Jan 20184,03121,82962.874.01$340,948
Dec 20172,90518,33057.272.92$219,921
Nov 20172,31616,05055.423.12$178,402
Oct 20173,21322,10949.292.98$224,335
Sep 20173,04124,52647.523.09$220,227
Aug 20173,37322,70245.373.00$221,239
Jul 20173,67118,39643.873.09$217,840
Jun 20173,81922,90642.493.09$232,987
May 20173,62824,19645.373.26$243,564
Apr 20173,52824,70447.933.21$248,436
Mar 20174,28228,65046.772.98$285,752
Feb 20173,87121,81250.452.95$259,694
Jan 20174,62227,91449.413.42$323,805
Dec 20165,27932,70948.763.72$379,174
Nov 20165,03930,00442.492.64$293,448
Oct 20164,74223,60146.193.09$291,966
Sep 20164,55325,92841.553.10$269,570
Aug 20165,21425,45341.442.92$290,501
Jul 20165,10527,26841.622.92$292,211
Jun 20163,16315,63945.352.69$185,446
May 20164,37129,98142.521.99$245,548
Apr 20164,20335,96536.561.99$225,269
Mar 20165,05636,74233.011.79$232,814
Feb 20164,98837,33926.472.06$209,086
Jan 20165,51241,26927.352.36$248,328
Dec 20155,50643,30532.362.00$264,845
Nov 20155,35050,60038.792.17$317,193
Oct 20156,45950,45543.552.43$403,723
Sep 20155,54543,95042.992.76$359,612
Aug 20156,08648,32640.162.87$383,230
Jul 20157,25546,22748.152.95$485,470
Jun 20154,56337,75456.152.88$365,052
May 20155,48738,45355.212.96$416,583
Apr 20155,82847,29849.822.71$418,366
Mar 20155,28343,42742.892.93$354,034
Feb 20155,19234,96144.662.98$335,925
Jan 20156,32842,01443.433.10$405,095
Dec 20146,23350,23054.693.59$521,277
Nov 20146,85138,90970.464.25$648,156
Oct 20146,01543,96878.303.90$642,492
Sep 20148,19159,75686.164.05$947,476
Aug 20147,03849,86189.394.04$830,322
Jul 20146,79952,92196.564.18$877,700
Jun 20146,09448,80398.164.74$829,361
May 20147,83550,39194.734.73$980,386
Apr 20148,40655,54395.944.81$1,073,585
Mar 20149,61543,35195.895.06$1,141,200
Feb 20142,62915,60697.406.19$352,697
Jan 20146,77935,96290.404.86$787,623
Dec 20139,73965,39291.824.35$1,178,983
Nov 201310,08877,58988.853.74$1,186,368
Oct 201314,537100,52397.423.78$1,796,107
Sep 201312,82295,956104.113.72$1,691,638
Aug 201315,718106,777104.253.52$2,014,735
Jul 201315,09783,479102.523.72$1,858,098
Jun 201313,41972,48294.403.93$1,551,855
May 201317,642100,58794.834.15$2,090,334
Apr 201316,19581,40393.964.28$1,870,298
Mar 201317,30985,86493.623.91$1,956,443
Feb 20139,34764,23491.233.42$1,072,401
Jan 20139,60166,02491.603.42$1,105,248
Dec 20128,20959,22586.773.42$914,854
Nov 20126,22643,29486.953.62$698,290
Oct 20124,40142,47689.383.40$537,766
Sep 20127,17052,28994.672.92$831,384
Aug 20127,44753,17592.662.91$844,680
Jul 20128,82352,64285.133.02$910,123
Jun 20128,91143,17579.822.52$820,036
May 20127,30840,79091.612.49$770,984
Apr 20124,40220,960101.652.00$489,316
Mar 20122,2952,516105.052.22$246,681
Feb 20121,7692,204101.102.57$184,511

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                   33 bbl  × $ 98.93 =     $3,265
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                   $3,265

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. 7C/O/17817 is the state's own key, not one this site invented.