CALVERLEY -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 31918District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$9.8 M
Jan 1993 – May 2026
Value, last 12 filed months
$418 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.

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
OilDisposition155,947 bbl$9,235,264
Casinghead gasProduction163,751 Mcf$558,412
Total$9,793,677

46,932 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 31.8060, -101.7343. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.80599, -101.73432 · 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
8,550 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 8,550 ft.

Completions filed
Aug 1988
1 of 1 wells

1 well

42-1733203818,550 ftAug 1988

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 20261780106.413.05$18,941
Apr 2026177098.932.87$17,511
Mar 2026539089.753.15$48,375
Feb 2026194063.503.75$12,319
Jan 2026518059.138.00$30,629
Dec 2025550056.664.41$31,163
Nov 2025545058.593.93$31,932
Oct 2025921059.383.30$54,689
Sep 20251,445062.743.08$90,659
Aug 2025726063.933.01$46,413
Jul 2025343066.743.32$22,892
Jun 2025181066.483.13$12,033
May 2025365060.553.23$22,101
Apr 2025558062.363.54$34,797
Mar 2025181067.704.27$12,254
Feb 2025569070.884.34$40,331
Jan 2025601074.324.28$44,666
Dec 2024201068.993.12$13,867
Nov 2024544069.052.20$37,563
Oct 2024536071.372.28$38,254
Sep 2024533069.612.36$37,102
Aug 2024519075.632.06$39,252
Jul 20240079.932.15$0
Jun 2024381078.082.63$29,748
May 2024558078.812.20$43,976
Apr 2024719084.451.66$60,720
Mar 2024731080.301.55$58,699
Feb 2024923076.091.78$70,231
Jan 2024541073.023.30$39,504
Dec 2023721071.262.61$51,378
Nov 20239241277.892.81$72,004
Oct 2023723085.443.09$61,773
Sep 2023692089.042.74$61,616
Aug 2023340080.522.67$27,377
Jul 2023909074.852.64$68,039
Jun 2023178068.962.26$12,275
May 20232,3461670.622.23$165,710
Apr 20231,8011478.122.24$140,725
Mar 20231,433072.852.39$104,394
Feb 2023718075.112.47$53,929
Jan 20236968176.533.39$53,539
Dec 2022181076.415.73$13,830
Nov 2022183085.005.65$15,555
Oct 2022387087.185.86$33,739
Sep 20220084.888.16$0
Aug 2022660094.529.13$62,383
Jul 20222,0880101.587.54$212,099
Jun 20222,1370115.097.98$245,947
May 20222,1420109.378.43$234,271
Apr 20222,2030104.226.84$229,597
Mar 20222,1350108.885.08$232,459
Feb 20221,822991.054.86$165,937
Jan 20221,99311081.844.54$163,606
Dec 20212,19749771.323.90$158,628
Nov 20212,5291,29177.435.24$202,581
Oct 20212,1331,64679.795.71$179,597
Sep 20211,94215469.865.35$136,492
Aug 20212,28518566.024.22$151,637
Jul 20212,40217970.783.98$170,726
Jun 20212,31713569.493.38$161,465
May 20212,29513963.483.02$146,106
Apr 20212,30913860.362.76$139,752
Mar 20212,82812561.302.72$173,696
Feb 20211,6085657.805.55$93,253
Jan 20211,9925250.412.81$100,563
Dec 20202,5259244.642.68$112,962
Nov 20202,14611838.772.71$83,520
Oct 20202,51312936.972.48$93,225
Sep 20202,54215537.091.99$94,591
Aug 20202,15919739.982.39$86,787
Jul 20202,14614538.371.83$82,607
Jun 20201,95010234.901.69$68,227
May 20209053516.921.81$15,376
Apr 20208932914.751.80$13,224
Mar 20209041430.341.86$27,453
Feb 20209171249.881.98$45,764
Jan 20201,2711757.252.09$72,800
Dec 20191,0835359.012.30$64,030
Nov 20191,2552455.302.75$69,468
Oct 20191,085653.472.42$58,029
Sep 20191,2592155.052.66$69,364
Aug 20191,2382953.112.30$65,817
Jul 20191,2513856.272.46$70,487
Jun 20191,2134152.782.49$64,124
May 20191,0733558.482.74$62,845
Apr 20199012162.632.75$56,487
Mar 20191,068056.803.06$60,662
Feb 2019896050.852.79$45,562
Jan 2019914046.033.23$42,071
Dec 2018892046.594.19$41,558
Nov 2018365052.934.24$19,319
Oct 2018346061.443.40$21,258
Sep 2018545059.543.11$32,449
Aug 20181,072059.403.07$63,677
Jul 2018716065.142.93$46,640
Jun 2018714060.183.08$42,969
May 2018703065.382.90$45,962
Apr 20185351263.842.90$34,189
Mar 20185364861.222.79$32,948
Feb 20186659861.782.77$41,355
Jan 20183664962.874.01$23,207
Dec 201701657.272.92$47
Nov 20170055.423.12$0
Oct 201753811049.292.98$26,846
Sep 20177154347.523.09$34,110
Aug 2017899045.373.00$40,788
Jul 2017359043.873.09$15,749
Jun 2017541042.493.09$22,987
May 2017708245.373.26$32,128
Apr 20171801747.933.21$8,682
Mar 20175273946.772.98$24,764
Feb 20171864650.452.95$9,520
Jan 20173463049.413.42$17,198
Dec 20163322448.763.72$16,278
Nov 2016361742.492.64$15,357
Oct 2016345046.193.09$15,936
Sep 2016351041.553.10$14,584
Aug 2016344041.442.92$14,255
Jul 2016168041.622.92$6,992
Jun 2016170045.352.69$7,710
May 2016176042.521.99$7,484
Apr 2016307036.561.99$11,224
Mar 2016171033.011.79$5,645
Feb 2016184026.472.06$4,870
Jan 2016171027.352.36$4,677
Dec 2015192032.362.00$6,213
Nov 20150038.792.17$0
Oct 2015318043.552.43$13,849
Sep 2015178042.992.76$7,652
Aug 2015151040.162.87$6,064
Jul 2015199048.152.95$9,582
Jun 20150056.152.88$0
May 2015180055.212.96$9,938
Apr 2015187049.822.71$9,316
Mar 2015192042.892.93$8,235
Feb 20150044.662.98$0
Jan 2015187043.433.10$8,121
Dec 20140054.693.59$0
Nov 2014181070.464.25$12,753
Oct 2014212078.303.90$16,600
Sep 20140086.164.05$0
Aug 2014186089.394.04$16,627
Jul 2014180096.564.18$17,381
Jun 20140098.164.74$0
May 2014186094.734.73$17,620
Apr 2014189095.944.81$18,133
Mar 20140095.895.06$0
Feb 2014192097.406.19$18,701
Jan 201401990.404.86$92
Dec 20131884391.824.35$17,449
Nov 2013017988.853.74$669
Oct 2013511897.423.78$5,036
Sep 20131790104.113.72$18,636
Aug 201300104.253.52$0
Jul 20131800102.523.72$18,454
Jun 2013170094.403.93$16,048
May 2013169094.834.15$16,026
Apr 2013169093.964.28$15,879
Mar 20130093.623.91$0
Feb 2013174091.233.42$15,874
Jan 2013173091.603.42$15,847
Dec 20120086.773.42$0
Nov 2012342086.953.62$29,737
Oct 20120089.383.40$0
Sep 2012167094.672.92$15,810
Aug 2012334092.662.91$30,948
Jul 20120085.133.02$0
Jun 2012169079.822.52$13,490
May 20120091.612.49$0
Apr 20121720101.652.00$17,484
Mar 20123310105.052.22$34,772
Feb 201200101.102.57$0
Jan 2012168098.092.73$16,479
Dec 20113096.873.24$291
Nov 2011167095.723.31$15,985
Oct 20110084.983.65$0
Sep 2011140083.623.99$11,707
Aug 201116710183.404.15$14,347
Jul 201116629394.144.52$16,951
Jun 2011139692.904.64$1,930
May 201118535498.134.40$19,713
Apr 2011182401105.964.33$21,022
Mar 2011040696.364.06$1,647
Feb 201116925785.644.18$15,547
Jan 201116840886.504.59$16,404
Dec 201017440785.734.35$16,687
Nov 2010034380.843.80$1,302
Oct 201033343178.103.51$27,520
Sep 2010038472.633.98$1,528
Aug 201017145773.684.42$14,619
Jul 2010045872.554.74$2,169
Jun 201017144170.364.91$14,197
May 201016746171.124.24$13,829
Apr 201017838981.694.12$16,145
Mar 201017042378.394.39$15,183
Feb 201017338173.585.44$14,803
Jan 2010138174.365.96$2,347
Dec 200917343871.445.48$14,761
Nov 200917045074.593.75$14,368
Oct 2009069172.544.11$2,840
Sep 200916469465.543.06$12,876
Aug 200916877667.423.22$13,824
Jul 200916764961.133.46$12,457
Jun 2009073666.163.90$2,867
May 200916864554.743.93$11,728
Apr 200916658546.773.59$9,863
Mar 200934059342.144.06$16,735
Feb 2009255032.814.63$2,614
Jan 2009458135.865.37$3,264
Dec 200817232337.105.98$8,312
Nov 200817455055.496.86$13,428
Oct 2008175975.246.92$13,229
Sep 20080283101.767.88$2,229
Aug 20080638114.228.48$5,412
Jul 20080363131.0811.39$4,134
Jun 2008144461131.3313.03$24,920
May 2008173434123.1711.57$26,332
Apr 20080464110.3110.45$4,851
Mar 2008171530101.909.66$22,547
Feb 2008051992.538.77$4,552
Jan 200833051290.388.21$34,027
Dec 200718052088.337.30$19,696
Nov 2007067591.677.29$4,922
Oct 200717779482.856.92$20,161
Sep 2007035075.846.24$2,185
Aug 20070069.066.39$0
Jul 200736035070.906.39$27,760
Jun 2007055862.007.55$4,212
May 2007056658.747.85$4,441
Apr 200717244359.617.81$13,711
Mar 2007049356.927.30$3,600
Feb 200734851155.108.22$23,373
Jan 2007015950.306.73$1,070
Dec 2006059956.656.92$4,144
Nov 200617659854.207.62$14,094
Oct 200617564054.906.01$13,456
Sep 200617364660.085.04$13,648
Aug 2006028468.717.34$2,085
Jul 200616963969.376.34$15,777
Jun 2006062266.286.38$3,971
May 200616863766.016.42$15,182
Apr 2006048364.397.36$3,555
Mar 200616871556.707.08$14,590
Feb 2006043757.597.75$3,387
Jan 200619151060.598.93$16,129
Dec 2005054654.9413.42$7,325
Nov 200520553754.6910.59$16,897
Oct 200518965158.3413.80$20,007
Sep 2005067261.4512.08$8,117
Aug 200518174061.519.80$18,383
Jul 2005065755.697.84$5,153
Jun 2005058252.337.38$4,296
May 200518160345.226.65$12,195
Apr 200517964749.207.36$13,569
Mar 2005068950.377.15$4,930
Feb 2005063445.226.31$4,002
Jan 200520361143.166.32$12,624
Dec 2004070139.866.75$4,733
Nov 2004069945.286.33$4,425
Oct 2004071249.706.52$4,639
Sep 200419573943.245.28$12,337
Aug 2004059442.375.55$3,297
Jul 200419784038.286.08$12,652
Jun 2004042736.106.43$2,747
May 2004069937.486.49$4,540
Apr 200419070534.475.86$10,680
Mar 200419175634.365.53$10,744
Feb 200418462332.455.51$9,403
Jan 2004050832.036.30$3,200
Dec 200320578430.266.30$11,144
Nov 200319083928.804.60$9,327
Oct 2003094528.174.76$4,498
Sep 200319362026.314.75$8,022
Aug 2003071429.765.13$3,663
Jul 200320163129.415.17$9,174
Jun 2003062828.565.98$3,757
May 200319671626.595.97$9,488
Apr 2003079926.675.41$4,320
Mar 200319276331.146.10$10,630
Feb 200319475733.487.93$12,495
Jan 2003077830.315.58$4,343
Dec 200217774126.914.85$8,360
Nov 200217979924.664.14$7,720
Oct 200219483826.464.23$8,677
Sep 2002083627.443.64$3,039
Aug 200219272025.963.16$7,263
Jul 2002080424.583.06$2,462
Jun 200218678223.733.34$7,024
May 2002080524.663.58$2,885
Apr 200218372023.653.51$6,857
Mar 200218467822.003.10$6,152
Feb 2002061718.222.38$1,466
Jan 200220262117.172.38$4,944
Dec 200117253516.932.36$4,177
Nov 2001058318.072.41$1,402
Oct 200119566119.782.53$5,529
Sep 200118964224.262.25$6,030
Aug 2001067024.873.05$2,046
Jul 200137664223.933.20$11,050
Jun 2001064624.563.82$2,470
May 2001058325.524.31$2,511
Apr 200119357224.685.34$7,815
Mar 200119863124.545.38$8,251
Feb 2001156927.755.77$3,309
Jan 200117867227.478.40$10,534
Dec 200014369126.889.12$10,147
Nov 200018269532.215.66$9,795
Oct 200018474431.235.15$9,575
Sep 2000076831.875.19$3,983
Aug 200017882529.644.54$9,022
Jul 200018775528.534.09$8,423
Jun 200018066429.304.40$8,194
May 2000065227.263.68$2,399
Apr 200017867524.513.12$6,466
Mar 200018568028.422.86$7,202
Feb 2000059127.622.73$1,611
Jan 200017767125.272.48$6,137
Dec 199917364924.282.42$5,773
Nov 199916871823.192.43$5,644
Oct 199917367420.982.80$5,519
Sep 1999072721.752.62$1,904
Aug 199918085719.262.88$5,931
Jul 199917380317.892.37$5,000
Jun 199917683715.942.36$4,783
May 199917595315.792.32$4,975
Apr 199917369415.102.21$4,145
Mar 199916990512.471.84$3,771
Feb 199907339.981.82$1,332
Jan 1999070210.381.90$1,334
Dec 19981835849.201.77$2,719
Nov 1998065510.892.19$1,432
Oct 199817686912.421.97$3,897
Sep 199817683812.592.08$3,961
Aug 199817386311.301.91$3,601
Jul 1998094911.742.24$2,123
Jun 199817586211.242.24$3,896
May 199817180512.622.21$3,934
Apr 1998075913.042.51$1,902
Mar 199832971812.802.31$5,869
Feb 199817076413.952.30$4,128
Jan 199818387714.702.15$4,580
Dec 199716976416.322.41$4,600
Nov 199717269618.193.09$5,278
Oct 199716989919.253.15$6,085
Sep 199717581617.742.95$5,516
Aug 1997081517.862.55$2,082
Jul 199717182617.582.25$4,862
Jun 199717786217.242.26$4,997
May 199717275118.972.31$4,997
Apr 199718571417.882.08$4,795
Mar 199717178518.951.94$4,763
Feb 1997070420.492.21$1,553
Jan 199717484123.483.54$7,062
Dec 199617184223.32$3,988
Nov 199628185221.97$6,174
Oct 199618289123.31$4,242
Sep 199617070922.22$3,777
Aug 19961731,01820.26$3,505
Jul 199616895919.55$3,284
Jun 199617496818.73$3,259
May 1996096319.43$0
Apr 199618370921.51$3,936
Mar 199636079719.38$6,977
Feb 199617286016.98$2,921
Jan 199617782517.07$3,021
Dec 199516989017.19$2,905
Nov 199519590516.00$3,120
Oct 19951741,04515.43$2,685
Sep 19953441,03216.18$5,566
Aug 199501,00215.92$0
Jul 19951721,08315.24$2,621
Jun 19951711,03316.41$2,806
May 199534895417.56$6,111
Apr 199517297317.73$3,050
Mar 199517098016.44$2,795
Feb 199517588616.58$2,902
Jan 199517098915.92$2,706
Dec 19943471,05615.03$5,215
Nov 19941751,03615.90$2,783
Oct 19941731,05515.58$2,695
Sep 19943471,11815.29$5,306
Aug 199401,03616.13$0
Jul 199416698817.56$2,915
Jun 19943391,06817.09$5,794
May 19941731,06515.88$2,747
Apr 19941711,00814.14$2,418
Mar 19943451,08912.46$4,299
Feb 199417297012.50$2,150
Jan 19943501,10212.66$4,431
Dec 19931771,07312.33$2,182
Nov 19933351,10214.49$4,854
Oct 19933441,63015.85$5,452
Sep 19931791,52015.03$2,690
Aug 199319188215.66$2,991
Jul 199318994415.46$2,922
Jun 199318596916.79$3,106
May 19933641,04917.68$6,436
Apr 1993081518.05$0
Mar 199318991218.14$3,428
Feb 199318065817.90$3,222
Jan 199317862216.93$3,014

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                  178 bbl  × $106.41 =    $18,941
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $18,941

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/31918 is the state's own key, not one this site invented.