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MILLER TRUST

Operated by OXYROCK OPERATING, LLC (P-5 102324) 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 40091District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$62.8 M
Mar 2010 – May 2026
Value, last 12 filed months
$2.9 M
at the published price for each month
Months reported
195
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 16,587 leases and 43,997 wells, and the rule below applies to all of them.

Discovered
1952-12-22
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 2018-02-13.

The Commission's schedule remark for this field reads: “SPRABERRY (TREND AREA) FIELD EFFECTIVE 10/1/2019.”

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
OilDisposition834,276 bbl$57,335,696
Casinghead gasProduction1,569,307 Mcf$5,450,468
Total$62,786,165

Wells on this lease (8)

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 31.8716, -102.0154. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.0 miles.

31.87103, -102.01546 · 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
25.0%
2 of 8 wells
With a plug date
25.0%
2 of 8 wells
Median depth
11,515 ft
8 wells filed one
Completion to plug
7.5 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
225.0%
A plug date is filed
225.0%
BothOn the schedule and plugged. Neither fact cancels the other.
225.0%
NeitherNo plug date, and not on the schedule.
675.0%

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, 8 of 8 wells. Median 11,515 ft, with the middle half between 11,504 and 11,530 ft; the shallowest is 10,404 ft and the deepest 11,572 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, 8 of 8 wells, Mar 2010 – Dec 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
Mar 2010 – Dec 2013
8 of 8 wells
Plug dates filed
Jul 2020
2 of 8 wells; 6 filed none

Last completion to plug: a median of 7.5 years across the 2 wells that filed both dates, with the middle half between 7.3 years and 7.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

8 wells

42-3293855610811,530 ftDec 2013——
42-3293855910711,505 ftAug 2013——
42-3293855210611,531 ftJun 2013Jul 2020Yes
42-3293825610511,519 ftJan 2013——
42-3293790810411,572 ftAug 2012Jul 2020Yes
42-3293732510311,510 ftMar 2012——
42-3293732410211,501 ftOct 2011——
42-3293620510110,404 ftMar 2010——

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 (195)

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

195 months

May 20262,15310,698106.413.05$261,685
Apr 20262,59520,81098.932.87$316,442
Mar 20262,88816,22089.753.15$310,282
Feb 20263,0989,23163.503.75$231,342
Jan 20262,2328,70159.138.00$201,568
Dec 20252,7186,70856.664.41$183,607
Nov 20253,3395,57158.593.93$217,506
Oct 20252,7675,58859.383.30$182,772
Sep 20253,2945,50462.743.08$223,601
Aug 20253,5276,02363.933.01$243,639
Jul 20253,3895,83966.743.32$245,539
Jun 20253,3455,27666.483.13$238,883
May 20254,0343,86460.553.23$256,748
Apr 20252,5763,03862.363.54$171,403
Mar 20251,8434,74167.704.27$145,007
Feb 20252,0474,89070.884.34$166,318
Jan 20252,7936,69874.324.28$236,234
Dec 20243,4166,89768.993.12$257,198
Nov 20242,6125,36969.052.20$192,162
Oct 20242,4246,29871.372.28$187,369
Sep 20242,7546,47769.612.36$207,020
Aug 20243,4037,66575.632.06$273,187
Jul 20243,2607,67179.932.15$277,038
Jun 20242,9506,41478.082.63$247,230
May 20242,2777,62778.812.20$196,218
Apr 20242,7297,46684.451.66$242,852
Mar 20242,2906,96180.301.55$194,643
Feb 20242,9246,73776.091.78$234,504
Jan 20243,4077,78773.023.30$274,458
Dec 20233,4298,30771.262.61$266,038
Nov 20233,7047,59377.892.81$309,822
Oct 20233,1006,92585.443.09$286,243
Sep 20233,6966,90489.042.74$347,975
Aug 20233,2517,98580.522.67$283,113
Jul 20233,6796,65874.852.64$292,962
Jun 20233,6797,31668.962.26$270,227
May 20233,9857,51870.622.23$298,166
Apr 20233,5247,04278.122.24$291,053
Mar 20232,8805,86972.852.39$223,853
Feb 20233,3705,90475.112.47$267,678
Jan 20233,9266,89176.533.39$323,802
Dec 20224,2296,87076.415.73$362,497
Nov 20223,6825,43585.005.65$343,657
Oct 20225,5386,57987.185.86$521,381
Sep 20223,9377,13284.888.16$392,396
Aug 20224,7518,41494.529.13$525,860
Jul 20224,6237,342101.587.54$524,978
Jun 20224,2826,128115.097.98$541,700
May 20224,9116,512109.378.43$592,032
Apr 20224,4186,565104.226.84$505,333
Mar 20225,2157,832108.885.08$607,568
Feb 20224,0085,54691.054.86$391,876
Jan 20224,9376,01981.844.54$431,356
Dec 20215,2696,78871.323.90$402,252
Nov 20214,8386,28177.435.24$407,499
Oct 20214,3265,30879.795.71$375,501
Sep 20215,7007,69869.865.35$439,393
Aug 20215,2397,41066.024.22$377,153
Jul 20215,1607,14070.783.98$393,657
Jun 20215,3996,87869.493.38$398,428
May 20215,1536,59463.483.02$347,011
Apr 20215,4326,63760.362.76$346,183
Mar 20215,7206,24761.302.72$367,609
Feb 20213,9363,96857.805.55$249,515
Jan 20215,3285,37950.412.81$283,701
Dec 20205,8276,02444.642.68$276,234
Nov 20206,7495,74538.772.71$277,208
Oct 20206,0046,07036.972.48$237,012
Sep 20205,0974,74337.091.99$198,491
Aug 20206,6116,40839.982.39$279,592
Jul 20205,8196,96738.371.83$235,991
Jun 20205,4224,58134.901.69$196,971
May 20202,6562,26416.921.81$49,048
Apr 20204,9364,47814.751.80$80,886
Mar 20208,3807,18930.341.86$267,594
Feb 20208,6236,54649.881.98$443,081
Jan 202011,0777,61657.252.09$650,112
Dec 201911,1729,06059.012.30$680,137
Nov 201910,4857,71155.302.75$601,031
Oct 201910,4957,17553.472.42$578,521
Sep 201910,7638,42755.052.66$614,896
Aug 20194,6963,81353.112.30$258,191
Jul 20192,5103,31756.272.46$149,398
Jun 20193,9534,79452.782.49$220,582
May 20194,1354,45558.482.74$254,023
Apr 20193,9434,44362.632.75$259,171
Mar 20193,3013,47456.803.06$198,135
Feb 20193,9154,23150.852.79$210,892
Jan 20194,1444,42646.033.23$205,036
Dec 20184,2813,60046.594.19$214,519
Nov 20183,5862,96752.934.24$202,379
Oct 20182,3332,10961.443.40$150,506
Sep 20184,7793,99459.543.11$296,955
Aug 20183,0192,89259.403.07$188,197
Jul 201872179665.142.93$49,300
Jun 20182,2213,15660.183.08$143,371
May 20183,3896,42765.382.90$240,216
Apr 20184,5506,68163.842.90$309,852
Mar 20183,5616,70361.222.79$236,685
Feb 20184,4596,43861.782.77$293,285
Jan 20182,7605,50562.874.01$195,593
Dec 20174,0395,82857.272.92$248,340
Nov 20173,7476,00755.423.12$226,391
Oct 20174,0156,27849.292.98$216,631
Sep 20174,1526,72447.523.09$218,062
Aug 20174,9516,99545.373.00$245,643
Jul 20173,3156,30043.873.09$164,879
Jun 20175,2295,85342.493.09$240,250
May 20174,7276,44545.373.26$235,497
Apr 20174,0296,66847.933.21$214,525
Mar 20175,6147,08946.772.98$283,718
Feb 20174,1514,38950.452.95$222,377
Jan 20173,9405,92549.413.42$214,932
Dec 20164,9296,50448.763.72$264,551
Nov 20166,0137,27442.492.64$274,727
Oct 20165,8646,93246.193.09$292,280
Sep 20162,0943,38041.553.10$97,486
Aug 20161,29656841.442.92$55,367
Jul 20163,6595,76041.622.92$169,132
Jun 20168623,44845.352.69$48,352
May 20162,2897,25842.521.99$111,779
Apr 20164,56912,86536.561.99$192,657
Mar 20165,64113,16533.011.79$209,828
Feb 20163,60811,65226.472.06$119,549
Jan 20162,90811,54027.352.36$106,819
Dec 20154,98414,75232.362.00$190,807
Nov 20155,51114,92438.792.17$246,117
Oct 20155,06915,52543.552.43$258,428
Sep 20155,28614,88242.992.76$268,296
Aug 20154,12813,71540.162.87$205,177
Jul 20154,44613,92548.152.95$255,085
Jun 20154,22913,91356.152.88$277,568
May 20155,01615,41755.212.96$322,498
Apr 20155,70515,45349.822.71$326,048
Mar 20155,15613,66542.892.93$261,244
Feb 20156,14814,52744.662.98$317,805
Jan 20155,25715,42543.433.10$276,139
Dec 20145,56117,23654.693.59$366,032
Nov 20145,64615,99470.464.25$465,821
Oct 20147,15819,49078.303.90$636,501
Sep 20145,22218,85086.164.05$526,184
Aug 20146,95820,50889.394.04$704,728
Jul 20147,29721,38996.564.18$793,996
Jun 20145,78317,28098.164.74$649,513
May 20146,90620,13994.734.73$749,394
Apr 20148,22820,10295.944.81$886,067
Mar 20147,67421,37895.895.06$843,964
Feb 20149,11019,00497.406.19$1,004,987
Jan 20149,57719,79390.404.86$961,969
Dec 20138,84817,71691.824.35$889,567
Nov 20136,80017,21288.853.74$668,523
Oct 20138,41119,29297.423.78$892,311
Sep 201310,37021,168104.113.72$1,158,318
Aug 20136,73816,614104.253.52$760,961
Jul 20137,06415,744102.523.72$782,733
Jun 20133,77210,33794.403.93$396,736
May 20134,88713,39494.834.15$519,007
Apr 20135,68314,15093.964.28$594,573
Mar 20135,28513,80593.623.91$548,799
Feb 20136,38211,52891.233.42$621,655
Jan 20135,98411,35491.603.42$586,964
Dec 20126,05712,03186.773.42$566,714
Nov 20123,9769,34786.953.62$379,596
Oct 20125,11512,88089.383.40$500,967
Sep 20124,03411,38894.672.92$415,134
Aug 20125,76115,33292.662.91$578,402
Jul 20125,79813,54785.133.02$534,507
Jun 20123,91211,66179.822.52$341,630
May 20124,66914,47591.612.49$463,746
Apr 20125,06214,378101.652.00$543,262
Mar 20123,1897,787105.052.22$352,308
Feb 20122,2214,863101.102.57$237,042
Jan 20122,4785,64198.092.73$258,490
Dec 20113,6515,40196.873.24$371,170
Nov 20111,7072,59695.723.31$171,990
Oct 20112,0893,51984.983.65$190,362
Sep 20115381,10883.623.99$49,404
Aug 20117401,32083.404.15$67,193
Jul 20115471,39694.144.52$57,801
Jun 20119231,44192.904.64$92,433
May 20111,0821,58898.134.40$113,172
Apr 20117121,908105.964.33$83,711
Mar 201173295796.364.06$74,418
Feb 20117301,19385.644.18$67,504
Jan 20111,0971,22786.504.59$100,521
Dec 201090968085.734.35$80,885
Nov 201071290080.843.80$60,974
Oct 20108851,14378.103.51$73,129
Sep 20101,0991,49072.633.98$85,750
Aug 20101,4211,80073.684.42$112,654
Jul 20101,0692,20872.554.74$88,014
Jun 20101,4512,02270.364.91$112,021
May 20101,4612,29671.124.24$113,630
Apr 20102,5213,34781.694.12$219,739
Mar 20102,2982,38278.394.39$190,594

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                2,153 bbl  × $106.41 =   $229,101
Casinghead gas    10,698 Mcf  × $  3.05 =    $32,584

────────────────────────────────────────────────────
Month total                                 $261,685

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/40091 is the state's own key, not one this site invented.