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WILLIAMS 21 B

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 51305District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$52.0 M
Feb 2018 – May 2026
Value, last 12 filed months
$3.3 M
at the published price for each month
Months reported
100
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
OilDisposition647,102 bbl$42,488,875
Casinghead gasProduction2,897,775 Mcf$9,502,830
Total$51,991,705

Wells on this lease (3)

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 32.3957, -101.6696. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

32.39566, -101.66975 · 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 3 wells
With a plug date
0.0%
0 of 3 wells
Median depth
8,171 ft
3 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.
3100.0%

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 7,788 and 8,486 ft, median 8,171 ft, over the 3 wells that filed a depth.

Completions filed
Feb 2018 – Mar 2023
3 of 3 wells

3 wells

42-227402682WB8,486 ftMar 2023——
42-227402672LS7,788 ftAug 2022——
42-227391753WA8,171 ftFeb 2018——

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 (100)

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

100 months

May 20262,65958,935106.413.05$462,451
Apr 20262,38635,71998.932.87$338,551
Mar 20262,47447,50789.753.15$371,662
Feb 20261,08719,02963.503.75$140,389
Jan 20262,31146,48459.138.00$508,425
Dec 20252,69150,92856.664.41$377,236
Nov 20251,76940,16758.593.93$261,359
Oct 20251,44623,70059.383.30$164,188
Sep 20251,98136,12562.743.08$235,442
Aug 20252,05030,10163.933.01$221,804
Jul 20258868,24466.743.32$86,462
Jun 20251,55621,55366.483.13$170,876
May 20251,98025,33160.553.23$201,767
Apr 20252,70528,10862.363.54$268,274
Mar 20253,00225,79867.704.27$313,350
Feb 20252,82623,82570.884.34$303,727
Jan 20253,33326,77074.324.28$362,249
Dec 20244,04247,35268.993.12$426,661
Nov 20244,74960,47869.052.20$460,876
Oct 20245,03459,41271.372.28$494,819
Sep 20245,18653,21969.612.36$486,826
Aug 20244,93450,83175.632.06$478,055
Jul 20244,90252,02979.932.15$503,502
Jun 20244,95551,29378.082.63$521,991
May 20244,74152,93178.812.20$490,004
Apr 20245,66251,12384.451.66$562,979
Mar 20244,57737,94580.301.55$426,163
Feb 20244,26747,57876.091.78$409,538
Jan 20243,86648,48373.023.30$442,176
Dec 20234,52755,36571.262.61$467,137
Nov 20234,99853,58377.892.81$539,732
Oct 20236,10961,45785.443.09$711,688
Sep 20235,48661,55489.042.74$656,826
Aug 20235,64755,73880.522.67$603,677
Jul 20236,98361,00674.852.64$683,843
Jun 20237,07350,46068.962.26$601,717
May 20238,96966,55370.622.23$781,631
Apr 20238,28849,95278.122.24$759,239
Mar 20238,17338,50372.852.39$687,547
Feb 202310,00451,11175.112.47$877,424
Jan 202310,96467,09876.533.39$1,066,384
Dec 202211,98861,19676.415.73$1,266,600
Nov 202213,26252,19685.005.65$1,421,979
Oct 202215,21356,62587.185.86$1,658,305
Sep 202217,74844,25684.888.16$1,867,742
Aug 20222,4023,09594.529.13$255,286
Jul 20222,01611,594101.587.54$292,228
Jun 20222,32410,194115.097.98$348,789
May 20222,4617,068109.378.43$328,764
Apr 20222,58612,617104.226.84$355,783
Mar 20222,57813,026108.885.08$346,818
Feb 20222,44410,81591.054.86$275,075
Jan 20222,99214,31181.844.54$309,804
Dec 20213,12317,26071.323.90$290,031
Nov 20212,89616,77077.435.24$312,059
Oct 20213,81214,91279.795.71$389,365
Sep 20212,60615,25069.865.35$263,657
Aug 20213,27416,35466.024.22$285,173
Jul 20213,70518,01870.783.98$333,989
Jun 20213,82217,82669.493.38$325,854
May 20214,32117,42463.483.02$326,877
Apr 20214,38617,49660.362.76$313,000
Mar 20215,31915,90961.302.72$369,279
Feb 20213,69711,74457.805.55$278,842
Jan 20215,58515,21750.412.81$324,304
Dec 20205,95914,10244.642.68$303,739
Nov 20205,01410,95438.772.71$224,041
Oct 20206411,38036.972.48$27,118
Sep 20202,98111,13337.091.99$132,732
Aug 20203,88814,87639.982.39$190,923
Jul 20203,42612,19538.371.83$153,713
Jun 20204,13115,57034.901.69$170,490
May 20204,71317,96416.921.81$112,344
Apr 20205,14419,69114.751.80$111,404
Mar 20205,85221,82730.341.86$218,066
Feb 20205,93818,71549.881.98$333,256
Jan 20205,95518,00957.252.09$378,648
Dec 20196,19717,47359.012.30$405,949
Nov 20194,94810,37455.302.75$302,160
Oct 20194,22310,52353.472.42$251,254
Sep 20194,34611,26455.052.66$269,179
Aug 20197,05418,21453.112.30$416,610
Jul 20199,04519,73856.272.46$557,519
Jun 20199,91215,19652.782.49$561,012
May 20191,7791,18958.482.74$107,294
Apr 20194,5798,19262.632.75$309,317
Mar 20198,14718,39156.803.06$519,065
Feb 20195,21211,26350.852.79$296,479
Jan 201910,42321,11746.033.23$547,940
Dec 201811,52619,77546.594.19$619,763
Nov 201814,76922,47652.934.24$876,959
Oct 201810,89613,56461.443.40$715,542
Sep 20188,83210,78259.543.11$559,368
Aug 201814,06819,35759.403.07$894,999
Jul 201813,50618,33665.142.93$933,540
Jun 201819,52123,01860.183.08$1,245,598
May 201826,70428,47565.382.90$1,828,508
Apr 201833,76432,33963.842.90$2,249,303
Mar 201838,18631,60661.222.79$2,425,828
Feb 201819,98514,14661.782.77$1,273,803

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                2,659 bbl  × $106.41 =   $282,944
Casinghead gas    58,935 Mcf  × $  3.05 =   $179,507

────────────────────────────────────────────────────
Month total                                 $462,451

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/51305 is the state's own key, not one this site invented.