TOM 4A

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 26640District 08Field 85280300NGPA filingOilCasinghead gasSaveExport
Value, all time
$1.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$40 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

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.

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA1none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition33,672 bbl$1,622,112
Casinghead gasProduction85,105 Mcf$302,613
Total$1,924,725

19,638 Mcf of this lease's gas, across 48 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.

Wells on this lease (1)

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 32.1586, -101.8453. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.15858, -101.84535 · 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 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
8,870 ft
1 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.
1100.0%

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

The one well that filed a depth was drilled to 8,870 ft.

Completions filed
Jun 1981
1 of 1 wells

1 well

42-3173233118,870 ftJun 1981

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 (401)

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

401 months

May 202600106.413.05$0
Apr 2026176098.932.87$17,412
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20256058.593.93$352
Oct 20250059.383.30$0
Sep 2025182062.743.08$11,419
Aug 20251063.933.01$64
Jul 2025159066.743.32$10,612
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 2025182067.704.27$12,321
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 2024175068.993.12$12,073
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 2024181069.612.36$12,599
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 2024179078.082.63$13,976
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 2024185080.301.55$14,856
Feb 20240076.091.78$0
Jan 2024189073.023.30$13,801
Dec 20230071.262.61$0
Nov 2023172077.892.81$13,397
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 2023183068.962.26$12,620
May 20230070.622.23$0
Apr 2023180078.122.24$14,062
Mar 20230372.852.39$7
Feb 20230075.112.47$0
Jan 2023168076.533.39$12,857
Dec 202201576.415.73$86
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 2022116284.888.16$9,862
Aug 2022157094.529.13$14,840
Jul 202200101.587.54$0
Jun 20221720115.097.98$19,795
May 202240109.378.43$437
Apr 202210104.226.84$104
Mar 20221350108.885.08$14,699
Feb 20220091.054.86$0
Jan 2022173081.844.54$14,158
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 2021165079.795.71$13,165
Sep 20210069.865.35$0
Aug 2021173066.024.22$11,421
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 2021175061.302.72$10,728
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 2020165044.642.68$7,366
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 2020170037.091.99$6,305
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 2020165034.901.69$5,759
May 20200016.921.81$0
Apr 2020167614.751.80$2,474
Mar 20200030.341.86$0
Feb 2020010049.881.98$198
Jan 202016811257.252.09$9,853
Dec 201907659.012.30$175
Nov 2019010855.302.75$297
Oct 201916812253.472.42$9,278
Sep 2019011755.052.66$311
Aug 2019013353.112.30$306
Jul 201918114956.272.46$10,551
Jun 2019016052.782.49$399
May 201917015658.482.74$10,369
Apr 2019015062.632.75$413
Mar 2019018356.803.06$560
Feb 201918517650.852.79$9,899
Jan 2019019546.033.23$630
Dec 2018019446.594.19$812
Nov 201818417652.934.24$10,485
Oct 2018018661.443.40$632
Sep 201817417959.543.11$10,916
Aug 2018015959.403.07$488
Jul 2018014665.142.93$428
Jun 201817515660.183.08$11,012
May 2018018365.382.90$531
Apr 2018018763.842.90$542
Mar 201818115061.222.79$11,499
Feb 2018017561.782.77$484
Jan 2018118862.874.01$817
Dec 201717417257.272.92$10,467
Nov 2017017855.423.12$555
Oct 201717020049.292.98$8,976
Sep 2017014247.523.09$438
Aug 2017019745.373.00$592
Jul 201717321343.873.09$8,247
Jun 2017020042.493.09$617
May 201717520645.373.26$8,612
Apr 2017018647.933.21$597
Mar 2017012546.772.98$373
Feb 201716914750.452.95$8,960
Jan 2017015249.413.42$520
Dec 201617414748.763.72$9,032
Nov 2016013242.492.64$349
Oct 2016017046.193.09$525
Sep 201616615741.553.10$7,384
Aug 2016012541.442.92$366
Jul 2016011041.622.92$322
Jun 201617515845.352.69$8,361
May 2016016642.521.99$331
Apr 201617116136.561.99$6,572
Mar 2016016133.011.79$289
Feb 2016014326.472.06$295
Jan 201612215727.352.36$3,708
Dec 201517910732.362.00$6,007
Nov 2015016538.792.17$358
Oct 2015017443.552.43$422
Sep 201518315942.992.76$8,306
Aug 2015017040.162.87$488
Jul 201517916848.152.95$9,114
Jun 2015015856.152.88$455
May 2015012455.212.96$366
Apr 201517716049.822.71$9,251
Mar 2015012842.892.93$376
Feb 201518913144.662.98$8,831
Jan 2015013743.433.10$425
Dec 2014014654.693.59$524
Nov 201418515370.464.25$13,686
Oct 201401078.303.90$39
Sep 201418615086.164.05$16,633
Aug 2014014989.394.04$601
Jul 201417818096.564.18$17,940
Jun 2014013698.164.74$644
May 2014018694.734.73$879
Apr 201417118095.944.81$17,271
Mar 2014018295.895.06$920
Feb 20141678497.406.19$16,786
Jan 201409990.404.86$481
Dec 20131729391.824.35$16,198
Nov 201309088.853.74$336
Oct 201309397.423.78$351
Sep 201317290104.113.72$18,242
Aug 2013093104.253.52$328
Jul 2013171114102.523.72$17,955
Jun 2013013894.403.93$543
May 201317012694.834.15$16,644
Apr 2013015693.964.28$668
Mar 2013017393.623.91$677
Feb 201316815591.233.42$15,857
Jan 201317217791.603.42$16,361
Dec 2012015486.773.42$527
Nov 2012117386.953.62$714
Oct 201216811489.383.40$15,403
Sep 2012014994.672.92$435
Aug 201216919892.662.91$16,235
Jul 2012011085.133.02$332
Jun 2012012479.822.52$312
May 201232812191.612.49$30,349
Apr 20120160101.652.00$319
Mar 20120165105.052.22$367
Feb 2012169127101.102.57$17,412
Jan 2012021198.092.73$577
Dec 201117312096.873.24$17,147
Nov 2011018095.723.31$596
Oct 201117318784.983.65$15,384
Sep 2011011983.623.99$474
Aug 201117619383.404.15$15,479
Jul 201135019594.144.52$33,830
Jun 2011018392.904.64$849
May 2011021998.134.40$965
Apr 20110175105.964.33$758
Mar 201116840696.364.06$17,836
Feb 2011013085.644.18$543
Jan 201117218386.504.59$15,718
Dec 20100085.734.35$0
Nov 2010019180.843.80$725
Oct 201017821578.103.51$14,656
Sep 2010021572.633.98$856
Aug 201017719873.684.42$13,916
Jul 2010025772.554.74$1,217
Jun 201017523070.364.91$13,442
May 2010026171.124.24$1,105
Apr 201017319481.694.12$14,932
Mar 2010027178.394.39$1,189
Feb 201017424973.585.44$14,158
Jan 2010027974.365.96$1,664
Dec 200917027971.445.48$13,675
Nov 2009026474.593.75$990
Oct 200917428872.544.11$13,806
Sep 2009027465.543.06$840
Aug 200917429567.423.22$12,681
Jul 2009028061.133.46$970
Jun 2009025366.163.90$985
May 200917430754.743.93$10,730
Apr 2009026446.773.59$947
Mar 200916727342.144.06$8,145
Feb 200916921232.814.63$6,527
Jan 2009023635.865.37$1,268
Dec 200818922637.105.98$8,363
Nov 2008023455.496.86$1,605
Oct 200817324375.246.92$14,699
Sep 20080243101.767.88$1,914
Aug 2008297195114.228.48$35,578
Jul 20080282131.0811.39$3,212
Jun 2008168254131.3313.03$25,374
May 20080319123.1711.57$3,692
Apr 20080174110.3110.45$1,819
Mar 2008165197101.909.66$18,717
Feb 2008223392.538.77$2,229
Jan 200816928090.388.21$17,572
Dec 2007029488.337.30$2,147
Nov 200716930491.677.29$17,709
Oct 2007431182.856.92$2,484
Sep 200717530475.846.24$15,170
Aug 2007329069.066.39$2,060
Jul 200717329670.906.39$14,157
Jun 2007027862.007.55$2,098
May 200716029058.747.85$11,674
Apr 2007027659.617.81$2,154
Mar 200716724256.927.30$11,273
Feb 200716722555.108.22$11,050
Jan 2007025250.306.73$1,695
Dec 200616725856.656.92$11,246
Nov 2006024854.207.62$1,889
Oct 200616623854.906.01$10,545
Sep 2006023660.085.04$1,189
Aug 200616425768.717.34$13,155
Jul 2006024569.376.34$1,554
Jun 200617023266.286.38$12,749
May 200617022866.016.42$12,687
Apr 2006022564.397.36$1,656
Mar 2006028856.707.08$2,040
Feb 200616929357.597.75$12,004
Jan 2006033460.598.93$2,984
Dec 200516532954.9413.42$13,479
Nov 2005032454.6910.59$3,431
Oct 200517032358.3413.80$14,374
Sep 200516727261.4512.08$13,548
Aug 2005032761.519.80$3,204
Jul 2005034055.697.84$2,667
Jun 200515832852.337.38$10,689
May 200516532845.226.65$9,643
Apr 2005029049.207.36$2,135
Mar 200516531950.377.15$10,593
Feb 2005027945.226.31$1,761
Jan 200517431343.166.32$9,489
Dec 2004032739.866.75$2,208
Nov 200417231445.286.33$9,776
Oct 200417131449.706.52$10,544
Sep 2004032043.245.28$1,691
Aug 200416635542.375.55$9,004
Jul 2004035838.286.08$2,178
Jun 200416436036.106.43$8,236
May 2004026937.486.49$1,747
Apr 200416633734.475.86$7,696
Mar 2004034834.365.53$1,924
Feb 200416632632.455.51$7,183
Jan 200417334432.036.30$7,708
Dec 2003034230.266.30$2,155
Nov 200316633728.804.60$6,329
Oct 2003035728.174.76$1,699
Sep 200316836426.314.75$6,149
Aug 2003038129.765.13$1,954
Jul 200316436129.415.17$6,690
Jun 200316736028.565.98$6,923
May 2003037026.595.97$2,210
Apr 200317136126.675.41$6,513
Mar 2003038931.146.10$2,371
Feb 200316936133.487.93$8,519
Jan 200317145330.315.58$7,712
Dec 200216722826.914.85$5,601
Nov 2002028224.664.14$1,167
Oct 200216929326.464.23$5,711
Sep 2002030227.443.64$1,098
Aug 200217931625.963.16$5,647
Jul 2002032424.583.06$992
Jun 200217928723.733.34$5,206
May 2002028124.663.58$1,007
Apr 200217527423.653.51$5,101
Mar 200218627022.003.10$4,930
Feb 2002023818.222.38$565
Jan 200218225717.172.38$3,735
Dec 2001027016.932.36$638
Nov 200117426518.072.41$3,782
Oct 2001025519.782.53$645
Sep 200118425324.262.25$5,033
Aug 2001025724.873.05$785
Jul 200111826823.933.20$3,681
Jun 200117325724.563.82$5,232
May 2001028625.524.31$1,232
Apr 200116826724.685.34$5,571
Mar 200117928824.545.38$5,941
Feb 2001024327.755.77$1,401
Jan 200118628927.478.40$7,537
Dec 2000030526.889.12$2,782
Nov 200017831332.215.66$7,504
Oct 2000031931.235.15$1,641
Sep 200018131731.875.19$7,413
Aug 200017931829.644.54$6,750
Jul 2000032328.534.09$1,321
Jun 200017928329.304.40$6,489
May 2000028027.263.68$1,030
Apr 200017525224.513.12$5,074
Mar 2000029828.422.86$852
Feb 200019526127.622.73$6,098
Jan 2000025625.272.48$635
Dec 199918326624.282.42$5,088
Nov 1999026023.192.43$633
Oct 199919426820.982.80$4,822
Sep 1999027321.752.62$715
Aug 199918727919.262.88$4,404
Jul 1999027217.892.37$645
Jun 199919226015.942.36$3,675
May 1999027515.792.32$638
Apr 1999027015.102.21$596
Mar 199918427712.471.84$2,804
Feb 199902639.981.82$478
Jan 199919629910.381.90$2,603
Dec 199803179.201.77$562
Nov 199819730510.892.19$2,812
Oct 1998031012.421.97$610
Sep 199819330712.592.08$3,069
Aug 1998031711.301.91$605
Jul 199818831711.742.24$2,916
Jun 1998030011.242.24$671
May 199818832012.622.21$3,079
Apr 1998030113.042.51$754
Mar 199818931612.802.31$3,149
Feb 199819029913.952.30$3,338
Jan 1998034714.702.15$748
Dec 199719433116.322.41$3,964
Nov 1997032418.193.09$1,001
Oct 199719135119.253.15$4,782
Sep 1997033517.742.95$990
Aug 199718834017.862.55$4,226
Jul 1997034217.582.25$768
Jun 199719133317.242.26$4,044
May 199718933418.972.31$4,356
Apr 1997135817.882.08$764
Mar 199719436818.951.94$4,390
Feb 1997133120.492.21$751
Jan 199719536123.483.54$5,856
Dec 1996042023.32$0
Nov 199619344621.97$4,240
Oct 199619544723.31$4,545
Sep 1996043022.22$0
Aug 199618443520.26$3,728
Jul 1996043919.55$0
Jun 199618839918.73$3,521
May 1996039119.43$0
Apr 199617139821.51$3,678
Mar 199615939119.38$3,081
Feb 1996036416.98$0
Jan 199618739717.07$3,192
Dec 199516341917.19$2,802
Nov 1995037616.00$0
Oct 199516739715.43$2,577
Sep 199517840816.18$2,880
Aug 1995038215.92$0
Jul 199518037315.24$2,743
Jun 1995038116.41$0
May 199518040017.56$3,161
Apr 199518435217.73$3,262
Mar 1995041016.44$0
Feb 199518136716.58$3,001
Jan 199518040715.92$2,866
Dec 1994242015.03$30
Nov 199417742415.90$2,814
Oct 199418353015.58$2,851
Sep 1994052715.29$0
Aug 199418147316.13$2,920
Jul 199417837717.56$3,126
Jun 1994037617.09$0
May 199417540815.88$2,779
Apr 199418337314.14$2,588
Mar 1994043712.46$0
Feb 199418439112.50$2,300
Jan 1994041412.66$0
Dec 199318141512.33$2,232
Nov 199318539614.49$2,681
Oct 199317043615.85$2,695
Sep 1993047015.03$0
Aug 199318045115.66$2,819
Jul 199317242315.46$2,659
Jun 1993039416.79$0
May 199317239017.68$3,041
Apr 199317734418.05$3,195
Mar 199318237218.14$3,301
Feb 1993035917.90$0
Jan 199318140916.93$3,064

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                  176 bbl  × $ 98.93 =    $17,412
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $17,412

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/26640 is the state's own key, not one this site invented.