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UL MASON UNIT

Operated by DIAMONDBACK E&P LLC (P-5 217012) 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 45925District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$80.4 M
May 2014 – May 2026
Value, last 12 filed months
$2.6 M
at the published price for each month
Months reported
145
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
OilDisposition1,376,638 bbl$74,135,391
Casinghead gasProduction1,913,143 Mcf$6,267,116
Total$80,402,507

Wells on this lease (4)

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 32.4119, -102.2295. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

32.41195, -102.22930 · 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
0.0%
0 of 4 wells
With a plug date
0.0%
0 of 4 wells
Median depth
9,493 ft
4 wells filed one
Completion to plug
—
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
4100.0%

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

Between 9,454 and 10,055 ft, median 9,493 ft, over the 4 wells that filed a depth.

Completions filed
May 2014 – Mar 2021
4 of 4 wells

4 wells

42-003463152LS9,454 ftMar 2021——
42-003472027LS9,491 ftAug 2016——
42-003472016LS9,494 ftAug 2016——
42-003457761H10,055 ftMay 2014——

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 (145)

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

145 months

May 20261,8944,587106.413.05$215,512
Apr 20261,6405,03198.932.87$176,683
Mar 20262,8958,18189.753.15$285,592
Feb 20262,6356,47763.503.75$191,613
Jan 20262,8758,16259.138.00$235,278
Dec 20252,8588,19756.664.41$198,111
Nov 20252,8167,87158.593.93$195,894
Oct 20252,6338,76059.383.30$185,298
Sep 20252,5568,39162.743.08$186,182
Aug 20252,9869,21663.933.01$218,679
Jul 20253,1049,66266.743.32$239,192
Jun 20253,1109,09766.483.13$235,215
May 20253,4778,71060.553.23$238,686
Apr 20253,63310,68162.363.54$264,398
Mar 20253,9159,86067.704.27$307,131
Feb 20253,1748,88670.884.34$263,546
Jan 20253,84011,24574.324.28$333,503
Dec 20243,86312,15768.993.12$304,455
Nov 20243,4089,43269.052.20$256,058
Oct 20243,95410,43271.372.28$305,997
Sep 20244,05010,66669.612.36$307,139
Aug 20244,0799,17675.632.06$327,431
Jul 20243,3356,28979.932.15$280,066
Jun 20243,0086,10578.082.63$250,945
May 20243,1577,13478.812.20$264,487
Apr 20244,1869,50484.451.66$369,277
Mar 20244,0979,60880.301.55$343,835
Feb 20243,4987,73676.091.78$279,961
Jan 20242,8236,81173.023.30$228,596
Dec 20234,2568,39571.262.61$325,200
Nov 20234,0289,32077.892.81$339,907
Oct 20233,5616,82385.443.09$325,316
Sep 20233,72910,11789.042.74$359,701
Aug 20234,05710,77180.522.67$355,459
Jul 20233,9749,71574.852.64$323,119
Jun 20234,46910,39668.962.26$331,661
May 20234,0469,76570.622.23$307,479
Apr 20232,5227,03178.122.24$212,752
Mar 20233,6647,89272.852.39$285,809
Feb 20233,1467,23375.112.47$254,130
Jan 20232,5297,04176.533.39$217,397
Dec 20222,7446,24076.415.73$245,419
Nov 20223,3527,92785.005.65$329,677
Oct 20224,01110,81987.185.86$413,119
Sep 20223,61810,80984.888.16$395,337
Aug 20223,88812,24794.529.13$479,274
Jul 20223,81212,547101.587.54$481,853
Jun 20223,88412,166115.097.98$544,060
May 20224,16912,631109.378.43$562,481
Apr 20224,05212,404104.226.84$507,113
Mar 20224,29112,804108.885.08$532,202
Feb 20223,83311,22491.054.86$403,530
Jan 20224,59312,56581.844.54$432,907
Dec 20215,14913,71771.323.90$420,711
Nov 20215,72413,54677.435.24$514,148
Oct 20216,05214,02379.795.71$563,015
Sep 20216,01913,74169.865.35$494,014
Aug 20215,94713,61066.024.22$450,063
Jul 20216,27113,13570.783.98$496,166
Jun 20214,5538,88569.493.38$346,425
May 20214,53810,70863.483.02$320,385
Apr 20214,57611,37660.362.76$307,587
Mar 20213,96611,18061.302.72$273,491
Feb 20214,91313,51857.805.55$358,969
Jan 20215,96716,27750.412.81$346,539
Dec 20206,31420,12444.642.68$335,698
Nov 20206,86519,69538.772.71$319,462
Oct 20207,25520,11436.972.48$318,068
Sep 20207,24518,84137.091.99$306,230
Aug 20207,16919,73139.982.39$333,677
Jul 20208,41818,67038.371.83$357,074
Jun 20206,02112,83434.901.69$231,826
May 20206,10617,03016.921.81$134,219
Apr 20207,38717,99814.751.80$141,433
Mar 20206,61715,60430.341.86$229,724
Feb 20205,66012,48049.881.98$307,040
Jan 20207,03514,26257.252.09$432,629
Dec 20197,37514,98359.012.30$469,725
Nov 20197,57814,68455.302.75$459,455
Oct 20197,50613,52753.472.42$434,061
Sep 20197,13713,76555.052.66$429,469
Aug 20197,26414,06453.112.30$418,200
Jul 20198,50413,92456.272.46$512,774
Jun 20198,91913,68652.782.49$504,839
May 20199,34412,45658.482.74$580,571
Apr 201910,81813,93562.632.75$715,862
Mar 201911,90217,72156.803.06$730,297
Feb 20199,45711,25950.852.79$512,326
Jan 201911,36516,34246.033.23$575,886
Dec 201814,99516,88246.594.19$769,276
Nov 201814,62915,52752.934.24$840,105
Oct 201815,20120,47661.443.40$1,003,529
Sep 201813,50016,26059.543.11$854,326
Aug 201813,41917,25859.403.07$850,011
Jul 201814,62518,94965.142.93$1,008,229
Jun 201815,73018,46460.183.08$1,003,444
May 201812,52914,10265.382.90$860,053
Apr 201814,31913,91263.842.90$954,481
Mar 201815,14512,21161.222.79$961,207
Feb 201810,77113,27661.782.77$702,155
Jan 201812,91814,80462.874.01$871,509
Dec 201714,20216,71457.272.92$862,179
Nov 201714,82414,27155.423.12$866,048
Oct 201716,45416,43149.292.98$860,043
Sep 201714,02016,58347.523.09$717,427
Aug 201717,07414,78045.373.00$819,052
Jul 201711,0438,24543.873.09$509,911
Jun 201720,17912,30242.493.09$895,385
May 201725,34621,76445.373.26$1,220,973
Apr 201728,90822,67147.933.21$1,458,371
Mar 201727,73322,23046.772.98$1,363,400
Feb 20177,7116,80550.452.95$409,112
Jan 201728,43324,94349.413.42$1,490,150
Dec 201633,32228,88748.763.72$1,732,322
Nov 201638,24332,37742.492.64$1,710,561
Oct 201645,98737,09446.193.09$2,238,770
Sep 201654,78340,06441.553.10$2,400,457
Aug 20166,2824,30241.442.92$272,907
Jul 201610,30513,23041.622.92$467,583
Jun 201611,04013,28145.352.69$536,335
May 201612,37914,79142.521.99$555,805
Apr 201612,05812,82136.561.99$466,368
Mar 201611,3937,25933.011.79$389,106
Feb 201613,18014,03126.472.06$377,829
Jan 201615,65415,10927.352.36$463,860
Dec 201514,5805,70132.362.00$483,219
Nov 201511,14810,11438.792.17$454,351
Oct 201514,57014,11443.552.43$668,772
Sep 201515,84214,27642.992.76$720,427
Aug 201515,72814,38240.162.87$672,949
Jul 201519,58217,03748.152.95$993,049
Jun 201519,55916,90156.152.88$1,146,961
May 201520,96018,53455.212.96$1,211,978
Apr 201524,91722,88749.822.71$1,303,310
Mar 201533,19123,82442.892.93$1,493,479
Feb 201539,75124,94544.662.98$1,849,521
Jan 20158,7019,11543.433.10$406,147
Dec 20143,3697,85654.693.59$212,464
Nov 20143,4089,24770.464.25$279,444
Oct 20145,59013,91278.303.90$491,967
Sep 20143,8665,31886.164.05$354,608
Aug 20144,3178,70489.394.04$421,018
Jul 20146,95919,22696.564.18$752,318
Jun 201410,73212,90098.164.74$1,114,559
May 20144,8712,65394.734.73$473,969

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                1,894 bbl  × $106.41 =   $201,541
Casinghead gas     4,587 Mcf  × $  3.05 =    $13,971

────────────────────────────────────────────────────
Month total                                 $215,512

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/45925 is the state's own key, not one this site invented.