CALVERLEY 26

Operated by PIONEER NATURAL RES. USA, INC. (P-5 665748) 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 23456District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$7.8 M
Jan 1993 – May 2026
Value, last 12 filed months
$169 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
OilDisposition122,390 bbl$6,244,716
Casinghead gasProduction481,907 Mcf$1,584,768
Total$7,829,484

38,988 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 (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 31.7662, -101.6846. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

31.76618, -101.68466 · 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
75.0%
3 of 4 wells
With a plug date
75.0%
3 of 4 wells
Median depth
9,916 ft
4 wells filed one
Completion to plug
38.2 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
375.0%
A plug date is filed
375.0%
BothOn the schedule and plugged. Neither fact cancels the other.
375.0%
NeitherNo plug date, and not on the schedule.
125.0%

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 8,328 and 11,542 ft, median 9,916 ft, over the 4 wells that filed a depth.

Completions filed
Jan 1975 – Aug 2025
4 of 4 wells
Plug dates filed
Mar 2013 – Apr 2026
3 of 4 wells; 1 filed none

Last completion to plug: a median of 38.2 years across the 3 wells that filed both dates, with the middle half between 19.4 years and 42.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells

42-173369302A11,492 ftAug 2025Apr 2026Yes
42-173366831A11,542 ftNov 2014
42-1733019728,340 ftMar 1975Apr 2022Yes
42-1733012718,328 ftJan 1975Mar 2013Yes

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 202609898.932.87$281
Mar 2026083189.753.15$2,617
Feb 20261,10291363.503.75$73,401
Jan 202601,44359.138.00$11,541
Dec 20253791,19856.664.41$26,761
Nov 2025026958.593.93$1,056
Oct 20250059.383.30$0
Sep 202535770662.743.08$24,570
Aug 2025082463.933.01$2,484
Jul 202535647166.743.32$25,321
Jun 2025037166.483.13$1,161
May 20250060.553.23$0
Apr 202573672162.363.54$48,452
Mar 202501,04567.704.27$4,460
Feb 20253631,04570.884.34$30,266
Jan 20253661,26674.324.28$32,618
Dec 20241,0852,54068.993.12$82,782
Nov 20247252,18969.052.20$54,874
Oct 20247142,12371.372.28$55,802
Sep 20243621,79869.612.36$29,450
Aug 20243611,69675.632.06$30,802
Jul 20241,0881,95579.932.15$91,160
Jun 20247251,99778.082.63$61,868
May 20247191,44478.812.20$59,839
Apr 20247201,83184.451.66$63,842
Mar 20241,0831,35580.301.55$89,059
Feb 202472953576.091.78$56,424
Jan 20245352,23273.023.30$46,426
Dec 20239092,67171.262.61$71,749
Nov 20239051,24277.892.81$73,977
Oct 2023088285.443.09$2,723
Sep 2023040589.042.74$1,108
Aug 20230080.522.67$0
Jul 20235441,17374.852.64$43,817
Jun 20233621,09268.962.26$27,430
May 202336286070.622.23$27,480
Apr 202336899678.122.24$30,977
Mar 2023047472.852.39$1,134
Feb 202303075.112.47$74
Jan 2023017476.533.39$589
Dec 2022017476.415.73$997
Nov 2022016885.005.65$949
Oct 20227301,74287.185.86$73,856
Sep 20223541,81584.888.16$44,865
Aug 20223592,24094.529.13$54,378
Jul 20225272,071101.587.54$69,152
Jun 202202,326115.097.98$18,555
May 20227132,218109.378.43$96,685
Apr 2022174619104.226.84$22,367
Mar 20220663108.885.08$3,366
Feb 202234350391.054.86$33,674
Jan 2022023681.844.54$1,071
Dec 202116846971.323.90$13,810
Nov 202117281977.435.24$17,607
Oct 20216902,43579.795.71$68,968
Sep 20213402,41469.865.35$36,670
Aug 20213381,96166.024.22$30,591
Jul 20211,0081,97270.783.98$79,199
Jun 20211,0191,39869.493.38$75,536
May 20215141,73163.483.02$37,852
Apr 20214832,00460.362.76$34,682
Mar 20215141,82361.302.72$36,461
Feb 202151394357.805.55$34,883
Jan 202150652750.412.81$26,988
Dec 2020849244.642.68$1,673
Nov 20205092,67338.772.71$26,969
Oct 20205083,09236.972.48$26,444
Sep 2020516037.091.99$19,138
Aug 2020512039.982.39$20,470
Jul 2020340038.371.83$13,046
Jun 2020512034.901.69$17,869
May 2020167016.921.81$2,826
Apr 2020367014.751.80$5,413
Mar 2020528030.341.86$16,020
Feb 2020362049.881.98$18,057
Jan 2020364057.252.09$20,839
Dec 2019181059.012.30$10,681
Nov 20197106,65955.302.75$57,580
Oct 20199127,15553.472.42$66,069
Sep 20195435,54155.052.66$44,616
Aug 20195425,82153.112.30$42,199
Jul 20195424,71556.272.46$42,098
Jun 20195496,31152.782.49$44,698
May 2019552058.482.74$32,281
Apr 2019542062.632.75$33,945
Mar 20197181,76256.803.06$46,178
Feb 20195171,39450.852.79$30,182
Jan 20198902,80146.033.23$50,009
Dec 20187262,79846.594.19$45,535
Nov 20183353,03252.934.24$30,579
Oct 20181,1062,32861.443.40$75,863
Sep 20183601,49959.543.11$26,093
Aug 20183791,62459.403.07$27,493
Jul 20187152,58165.142.93$54,142
Jun 20187142,81360.183.08$51,624
May 20183521,85065.382.90$28,380
Apr 201872166163.842.90$47,946
Mar 20183632,11161.222.79$28,106
Feb 20187222,74761.782.77$52,204
Jan 20187704,19962.874.01$65,245
Dec 20177423,80357.272.92$53,605
Nov 20177894,00555.423.12$56,215
Oct 20171,0673,45649.292.98$62,904
Sep 20177004,69947.523.09$47,771
Aug 20173662,19645.373.00$23,203
Jul 20171,0893,05843.873.09$57,215
Jun 20173522,58742.493.09$22,943
May 20171,2493,68045.373.26$68,676
Apr 20173642,24447.933.21$24,653
Mar 20177313,60246.772.98$44,936
Feb 20171,0903,31650.452.95$64,781
Jan 20177373,63349.413.42$48,836
Dec 20161,5004,94348.763.72$91,542
Nov 20161,0824,93442.492.64$59,021
Oct 20167104,63246.193.09$47,109
Sep 20168784,41041.553.10$50,155
Aug 20161,0513,56441.442.92$53,976
Jul 20165222,39841.622.92$28,738
Jun 20161,2223,81945.352.69$65,675
May 20163522,98942.521.99$20,918
Apr 20166643,04836.561.99$30,345
Mar 20161,4124,73633.011.79$55,107
Feb 20166944,16026.472.06$26,955
Jan 20161,7495,97427.352.36$61,960
Dec 20151,0534,32832.362.00$42,737
Nov 201517626338.792.17$7,397
Oct 20158684,00843.552.43$47,527
Sep 20151,2526,78242.992.76$72,531
Aug 20151,5977,47740.162.87$85,613
Jul 20151,6218,04148.152.95$101,733
Jun 20151,8867,80656.152.88$128,403
May 20152,23413,18255.212.96$162,298
Apr 20152,34415,12149.822.71$157,704
Mar 20151,0582,46242.892.93$52,603
Feb 20157252,94244.662.98$41,134
Jan 20155445,59143.433.10$40,962
Dec 20141,5628,16654.693.59$114,753
Nov 20142,08614,00870.464.25$206,539
Oct 201417019078.303.90$14,052
Sep 2014014386.164.05$579
Aug 201417931989.394.04$17,288
Jul 2014029696.564.18$1,237
Jun 201419129098.164.74$20,122
May 2014029294.734.73$1,380
Apr 2014032195.944.81$1,544
Mar 201417533995.895.06$18,495
Feb 2014032997.406.19$2,037
Jan 201416835290.404.86$16,898
Dec 201316634291.824.35$16,731
Nov 2013034288.853.74$1,278
Oct 2013037797.423.78$1,425
Sep 2013176370104.113.72$19,699
Aug 20130185104.253.52$652
Jul 20130189102.523.72$703
Jun 2013022894.403.93$897
May 2013030894.834.15$1,278
Apr 201317632493.964.28$17,925
Mar 2013031593.623.91$1,233
Feb 201317331691.233.42$16,863
Jan 2013030891.603.42$1,053
Dec 201217725286.773.42$16,220
Nov 2012016886.953.62$609
Oct 2012015589.383.40$527
Sep 201217815594.672.92$17,304
Aug 2012015592.662.91$451
Jul 2012015585.133.02$468
Jun 201217415579.822.52$14,279
May 2012015591.612.49$386
Apr 20120155101.652.00$310
Mar 2012181155105.052.22$19,358
Feb 20120155101.102.57$398
Jan 201213915598.092.73$14,058
Dec 201117915596.873.24$17,842
Nov 2011034495.723.31$1,139
Oct 201117433984.983.65$16,023
Sep 2011032983.623.99$1,311
Aug 2011031883.404.15$1,319
Jul 201117636994.144.52$18,236
Jun 2011037792.904.64$1,749
May 201117035998.134.40$18,263
Apr 20110333105.964.33$1,443
Mar 201117036596.364.06$17,862
Feb 2011034585.644.18$1,442
Jan 201118035886.504.59$17,213
Dec 2010035585.734.35$1,543
Nov 201017735680.843.80$15,660
Oct 2010036978.103.51$1,295
Sep 2010023972.633.98$951
Aug 201018926273.684.42$15,083
Jul 2010031172.554.74$1,473
Jun 201019129470.364.91$14,882
May 2010030571.124.24$1,292
Apr 201018625681.694.12$16,250
Mar 2010028078.394.39$1,229
Feb 2010032973.585.44$1,791
Jan 201018334574.365.96$15,665
Dec 2009037271.445.48$2,040
Nov 200918348874.593.75$15,481
Oct 200918058172.544.11$15,445
Sep 2009156465.543.06$1,794
Aug 200936657967.423.22$26,539
Jul 2009060961.133.46$2,110
Jun 200916852466.163.90$13,156
May 200916954854.743.93$11,402
Apr 200917652846.773.59$10,126
Mar 200916957142.144.06$9,439
Feb 200917044632.814.63$7,644
Jan 200913242535.865.37$7,016
Dec 2008043437.105.98$2,594
Nov 2008039955.496.86$2,737
Oct 200818038475.246.92$16,201
Sep 2008176548101.767.88$22,226
Aug 20080615114.228.48$5,217
Jul 2008174591131.0811.39$29,539
Jun 2008176576131.3313.03$30,621
May 2008173590123.1711.57$28,137
Apr 2008172553110.3110.45$24,755
Mar 2008168588101.909.66$22,802
Feb 200817059392.538.77$20,931
Jan 200817250190.388.21$19,656
Dec 2007058188.337.30$4,242
Nov 200734760391.677.29$36,206
Oct 200717263682.856.92$18,653
Sep 2007054075.846.24$3,372
Aug 2007060969.066.39$3,890
Jul 200717963070.906.39$16,716
Jun 20079357162.007.55$10,076
May 200717655758.747.85$14,709
Apr 200717853259.617.81$14,763
Mar 200717350556.927.30$13,535
Feb 200717741655.108.22$13,171
Jan 200717552650.306.73$12,341
Dec 2006054656.656.92$3,777
Nov 200618456454.207.62$14,269
Oct 200617841754.906.01$12,280
Sep 200617750260.085.04$13,163
Aug 2006052968.717.34$3,883
Jul 200617952769.376.34$15,760
Jun 200618254666.286.38$15,549
May 200617951966.016.42$15,150
Apr 200618047964.397.36$15,116
Mar 200618250256.707.08$13,875
Feb 2006037957.597.75$2,938
Jan 200618342660.598.93$14,894
Dec 200518546754.9413.42$16,429
Nov 200518051054.6910.59$15,244
Oct 2005051658.3413.80$7,119
Sep 200517754861.4512.08$17,496
Aug 200517851461.519.80$15,984
Jul 200517756655.697.84$14,297
Jun 200518054252.337.38$13,420
May 200518757645.226.65$12,287
Apr 2005049849.207.36$3,666
Mar 200517951550.377.15$12,701
Feb 200518147545.226.31$11,183
Jan 200518151243.166.32$11,049
Dec 200437354839.866.75$18,567
Nov 2004048845.286.33$3,089
Oct 2004042249.706.52$2,749
Sep 200418047443.245.28$10,288
Aug 2004049242.375.55$2,731
Jul 200417657938.286.08$10,260
Jun 200418154336.106.43$10,027
May 200418254737.486.49$10,374
Apr 200418256334.475.86$9,572
Mar 2004052834.365.53$2,920
Feb 200415551432.455.51$7,862
Jan 200418750832.036.30$9,190
Dec 200336854630.266.30$14,576
Nov 2003049128.804.60$2,256
Oct 200318146928.174.76$7,331
Sep 2003031526.314.75$1,496
Aug 200318231229.765.13$7,017
Jul 200317835129.415.17$7,050
Jun 200318036028.565.98$7,295
May 2003045426.595.97$2,712
Apr 200317951926.675.41$7,580
Mar 200318252831.146.10$8,886
Feb 200318545933.487.93$9,832
Jan 200317147130.315.58$7,812
Dec 200218648226.914.85$7,345
Nov 200218448124.664.14$6,527
Oct 2002038326.464.23$1,620
Sep 200218334027.443.64$6,257
Aug 200218034025.963.16$5,749
Jul 200218445724.583.06$5,922
Jun 200218750623.733.34$6,127
May 200218159324.663.58$6,589
Apr 2002040323.653.51$1,415
Mar 200218534822.003.10$5,150
Feb 2002040518.222.38$962
Jan 200232349617.172.38$6,724
Dec 200116944816.932.36$3,920
Nov 200117245618.072.41$4,205
Oct 200118250119.782.53$4,867
Sep 200117145724.262.25$5,177
Aug 200117548324.873.05$5,827
Jul 200116445523.933.20$5,379
Jun 2001049824.563.82$1,904
May 200117543825.524.31$6,353
Apr 200117341024.685.34$6,457
Mar 200117143424.545.38$6,530
Feb 200118034627.755.77$6,990
Jan 200118543827.478.40$8,761
Dec 200017850726.889.12$9,410
Nov 200018245032.215.66$8,408
Oct 200017946831.235.15$7,998
Sep 200017263131.875.19$8,754
Aug 200017759829.644.54$7,962
Jul 2000068928.534.09$2,818
Jun 200018564029.304.40$8,235
May 200034952127.263.68$11,431
Apr 200018256324.513.12$6,215
Mar 2000041628.422.86$1,190
Feb 200018464527.622.73$6,841
Jan 200018957925.272.48$6,212
Dec 199918464024.282.42$6,019
Nov 199918554723.192.43$5,622
Oct 199916073620.982.80$5,420
Sep 199917067721.752.62$5,470
Aug 199936372619.262.88$9,079
Jul 199935970017.892.37$8,083
Jun 1999079215.942.36$1,871
May 199954175515.792.32$10,295
Apr 1999057115.102.21$1,261
Mar 1999065812.471.84$1,210
Feb 19991865599.981.82$2,872
Jan 199918456710.381.90$2,987
Dec 199805869.201.77$1,039
Nov 1998055010.892.19$1,202
Oct 1998053012.421.97$1,044
Sep 199818466812.592.08$3,708
Aug 199818268011.301.91$3,354
Jul 199835863211.742.24$5,617
Jun 1998061311.242.24$1,371
May 199816874212.622.21$3,757
Apr 199818569913.042.51$4,164
Mar 199818168012.802.31$3,887
Feb 199818368113.952.30$4,119
Jan 199818664814.702.15$4,131
Dec 199719263216.322.41$4,657
Nov 199717369518.193.09$5,293
Oct 199718068819.253.15$5,632
Sep 199718061417.742.95$5,008
Aug 199718561517.862.55$4,875
Jul 199717966417.582.25$4,639
Jun 199718574217.242.26$4,864
May 199736572918.972.31$8,607
Apr 1997064317.882.08$1,339
Mar 199735968318.951.94$8,127
Feb 199719166320.492.21$5,376
Jan 1997061523.483.54$2,177
Dec 199618660823.32$4,338
Nov 199618163021.97$3,977
Oct 199636767423.31$8,555
Sep 199618264322.22$4,044
Aug 1996082820.26$0
Jul 199618576619.55$3,617
Jun 199618571718.73$3,465
May 199618277519.43$3,536
Apr 199618275621.51$3,915
Mar 199637177919.38$7,190
Feb 1996175116.98$17
Jan 199637371517.07$6,367
Dec 199518479017.19$3,163
Nov 199518379016.00$2,928
Oct 199518380515.43$2,824
Sep 199517880016.18$2,880
Aug 199517682215.92$2,802
Jul 199517883315.24$2,713
Jun 199518082016.41$2,954
May 199518782417.56$3,284
Apr 199518379017.73$3,245
Mar 199518787716.44$3,074
Feb 199537488416.58$6,201
Jan 199518791815.92$2,977
Dec 199418286215.03$2,735
Nov 199416690415.90$2,639
Oct 199418282115.58$2,836
Sep 199417682015.29$2,691
Aug 199418290016.13$2,936
Jul 199416784917.56$2,933
Jun 199417879217.09$3,042
May 199435988615.88$5,701
Apr 19941831,09914.14$2,588
Mar 199418287612.46$2,268
Feb 199418872012.50$2,350
Jan 199418477912.66$2,329
Dec 199318371512.33$2,256
Nov 199318378814.49$2,652
Oct 199318588315.85$2,932
Sep 199318291215.03$2,735
Aug 199336397315.66$5,685
Jul 199317985915.46$2,767
Jun 199318180016.79$3,039
May 199318676217.68$3,288
Apr 199318584618.05$3,339
Mar 199318482618.14$3,338
Feb 199336883017.90$6,587
Jan 199318689116.93$3,149

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                    0 bbl  × $ 98.93 =         $0
Casinghead gas        98 Mcf  × $  2.87 =       $281

────────────────────────────────────────────────────
Month total                                     $281

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/23456 is the state's own key, not one this site invented.