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HEIDELBERG

Operated by PRIME OPERATING COMPANY (P-5 677770) 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 28565District 08Field 85280300NGPA filingOilCasinghead gasSaveExport
Value, all time
$15.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$474 k
at the published price for each month
Months reported
401
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.”

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
NGPA8none——

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
OilDisposition276,403 bbl$13,652,213
Casinghead gasProduction596,952 Mcf$2,254,739
Total$15,906,952

111,487 Mcf of this lease's gas, across 47 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 (8)

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 32.2263, -101.7893. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

32.22643, -101.78952 · 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
37.5%
3 of 8 wells
With a plug date
37.5%
3 of 8 wells
Median depth
9,352 ft
8 wells filed one
Completion to plug
12.4 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
337.5%
A plug date is filed
337.5%
BothOn the schedule and plugged. Neither fact cancels the other.
337.5%
NeitherNo plug date, and not on the schedule.
562.5%

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

Total depth in feet, 8 of 8 wells. Median 9,352 ft, with the middle half between 8,548 and 9,800 ft; the shallowest is 8,505 ft and the deepest 9,800 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 8 of 8 wells, Nov 1983 – Jul 1985. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Nov 1983 – Jul 1985
8 of 8 wells
Plug dates filed
Apr 1995 – Jun 2022
3 of 8 wells; 5 filed none

Last completion to plug: a median of 12.4 years across the 3 wells that filed both dates, with the middle half between 11.8 years and 25.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

8 wells

42-3173316649,400 ftJul 1985——
42-3173316559,304 ftJul 1985——
42-3173316338,543 ftMay 1985Oct 1997Yes
42-3173311669,800 ftMar 1985——
42-3173294888,550 ftJul 1984——
42-3173294979,800 ftJul 1984——
42-3173290128,505 ftApr 1984Apr 1995Yes
42-3173278819,800 ftNov 1983Jun 2022Yes

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 20268853,565106.413.05$105,031
Apr 20261,5894,09398.932.87$168,946
Mar 20263181,26189.753.15$32,512
Feb 202602263.503.75$83
Jan 202601159.138.00$88
Dec 20253256856.664.41$18,715
Nov 202535425258.593.93$21,730
Oct 202517917559.383.30$11,207
Sep 202535618762.743.08$22,911
Aug 202534523363.933.01$22,758
Jul 202550835566.743.32$35,081
Jun 202551426966.483.13$35,012
May 202535743360.553.23$23,016
Apr 202535537362.363.54$23,459
Mar 202535346167.704.27$25,866
Feb 202535747070.884.34$27,344
Jan 202551545274.324.28$40,209
Dec 202435845068.993.12$26,103
Nov 202436546169.052.20$26,217
Oct 202436654171.372.28$27,356
Sep 202469347769.612.36$49,368
Aug 202417947675.632.06$14,520
Jul 202453836179.932.15$43,777
Jun 202453950778.082.63$43,421
May 202432535378.812.20$26,389
Apr 202454035884.451.66$46,197
Mar 202454150580.301.55$44,223
Feb 2024012476.091.78$221
Jan 202436220673.023.30$27,113
Dec 202318431271.262.61$13,926
Nov 202355027777.892.81$43,617
Oct 2023018485.443.09$568
Sep 202336124489.042.74$32,811
Aug 202335425680.522.67$29,188
Jul 202335433574.852.64$27,382
Jun 202317121968.962.26$12,287
May 202335425670.622.23$25,570
Apr 202335719678.122.24$28,327
Mar 202306572.852.39$156
Feb 202309175.112.47$224
Jan 202354027076.533.39$42,241
Dec 202216120076.415.73$13,448
Nov 202235620285.005.65$31,401
Oct 202217827887.185.86$17,148
Sep 2022035384.888.16$2,882
Aug 202253234794.529.13$53,452
Jul 2022178350101.587.54$20,721
Jun 2022175324115.097.98$22,725
May 2022179360109.378.43$22,613
Apr 2022359373104.226.84$39,965
Mar 2022173380108.885.08$20,765
Feb 202235937391.054.86$34,499
Jan 202234446481.844.54$30,258
Dec 202118144471.323.90$14,640
Nov 202135651677.435.24$30,267
Oct 202135970879.795.71$32,690
Sep 202153683169.865.35$41,892
Aug 202117676366.024.22$14,840
Jul 202135469470.783.98$27,820
Jun 202117763469.493.38$14,443
May 202171584363.483.02$47,932
Apr 202135679560.362.76$23,681
Mar 202133166261.302.72$22,089
Feb 202117641857.805.55$12,492
Jan 202136173050.412.81$20,250
Dec 202052584444.642.68$25,694
Nov 202053481138.772.71$22,898
Oct 202035685736.972.48$15,285
Sep 202035386937.091.99$14,823
Aug 202070094239.982.39$30,233
Jul 202069664838.371.83$27,888
Jun 202053144634.901.69$19,286
May 2020050316.921.81$913
Apr 2020060814.751.80$1,097
Mar 202054176530.341.86$17,834
Feb 202035970549.881.98$19,303
Jan 202054078057.252.09$32,549
Dec 201972588659.012.30$44,824
Nov 201917962155.302.75$11,607
Oct 201951953953.472.42$29,055
Sep 201954171255.052.66$31,674
Aug 20193291,25853.112.30$20,372
Jul 201971770956.272.46$42,090
Jun 201934968452.782.49$20,124
May 201972377958.482.74$44,416
Apr 201935982062.632.75$24,740
Mar 201954594856.803.06$33,859
Feb 201955160250.852.79$29,699
Jan 201918350646.033.23$10,057
Dec 201854577246.594.19$28,623
Nov 201836586452.934.24$22,980
Oct 201854285861.443.40$36,216
Sep 201871488259.543.11$45,253
Aug 201801,00659.403.07$3,085
Jul 20185341,06465.142.93$37,904
Jun 201872090460.183.08$46,111
May 201836098765.382.90$26,400
Apr 201865077663.842.90$43,747
Mar 20183571,16161.222.79$25,091
Feb 20181861,09761.782.77$14,526
Jan 20185431,24262.874.01$39,118
Dec 20175431,26557.272.92$34,793
Nov 20175371,37055.423.12$34,033
Oct 20177131,50849.292.98$39,643
Sep 20173531,41747.523.09$21,149
Aug 20177151,51145.373.00$36,979
Jul 20177161,59143.873.09$36,323
Jun 20175371,52342.493.09$27,519
May 20175341,70545.373.26$29,792
Apr 20178971,71647.933.21$48,504
Mar 20173671,34746.772.98$21,184
Feb 20177211,16450.452.95$39,811
Jan 20173631,37449.413.42$22,633
Dec 20161821,49048.763.72$14,421
Nov 20168951,37442.492.64$41,662
Oct 20165411,52546.193.09$29,701
Sep 20165321,49041.553.10$26,725
Aug 20167231,54841.442.92$34,488
Jul 20167081,58541.622.92$34,102
Jun 20167131,51545.352.69$36,404
May 20167171,58942.521.99$33,651
Apr 20165161,52536.561.99$21,901
Mar 20168891,62033.011.79$32,252
Feb 20165411,47126.472.06$17,356
Jan 20161,0811,59127.352.36$33,327
Dec 20155421,53332.362.00$20,607
Nov 20155421,58238.792.17$24,453
Oct 20157181,29543.552.43$34,411
Sep 20155431,40142.992.76$27,208
Aug 20158711,32440.162.87$38,783
Jul 20153541,47548.152.95$21,389
Jun 20157121,60456.152.88$44,603
May 20157401,64055.212.96$45,702
Apr 20155421,62349.822.71$31,395
Mar 20151,0921,65342.892.93$51,687
Feb 20155431,47544.662.98$28,640
Jan 20159221,52543.433.10$44,771
Dec 20145411,51554.693.59$35,028
Nov 20148961,60770.464.25$69,965
Oct 20147171,59978.303.90$62,379
Sep 20145361,45886.164.05$52,080
Aug 20145301,22589.394.04$52,320
Jul 20147251,24196.564.18$75,193
Jun 20145421,12898.164.74$58,546
May 20143761,22494.734.73$41,404
Apr 20148961,49895.944.81$93,166
Mar 20145591,68895.895.06$62,138
Feb 20147431,26797.406.19$80,213
Jan 20149181,44790.404.86$90,021
Dec 20139071,26091.824.35$88,767
Nov 20135391,30588.853.74$52,769
Oct 20133631,96497.423.78$42,786
Sep 20139001,349104.113.72$98,714
Aug 2013536452104.253.52$57,470
Jul 20138940102.523.72$91,653
Jun 2013551094.403.93$52,014
May 2013905394.834.15$85,834
Apr 2013561093.964.28$52,712
Mar 20139121193.623.91$85,424
Feb 2013549291.233.42$50,092
Jan 20139151091.603.42$83,848
Dec 20127287686.773.42$63,428
Nov 20125462686.953.62$47,569
Oct 201271511289.383.40$64,287
Sep 201287411394.672.92$83,071
Aug 201254318092.662.91$50,838
Jul 201290226485.133.02$77,585
Jun 201272725079.822.52$58,659
May 20129047391.612.49$82,997
Apr 20127202101.652.00$73,192
Mar 201271728105.052.22$75,383
Feb 2012733307101.102.57$74,895
Jan 201273629498.092.73$72,998
Dec 201189919096.873.24$87,702
Nov 201155145095.723.31$54,232
Oct 201172156784.983.65$63,339
Sep 20118961,21483.623.99$79,762
Aug 20117351,41783.404.15$67,179
Jul 20111,0861,33894.144.52$108,280
Jun 20116981,93492.904.64$73,818
May 20115452,14998.134.40$62,947
Apr 20119131,802105.964.33$104,550
Mar 20117362,26396.364.06$80,103
Feb 20119351,97085.644.18$88,308
Jan 20119212,20286.504.59$89,771
Dec 20109212,28485.734.35$88,888
Nov 20107412,34080.843.80$68,784
Oct 20101,0962,42078.103.51$94,089
Sep 20107272,19772.633.98$61,545
Aug 20101,2582,35173.684.42$103,079
Jul 20105342,40272.554.74$50,119
Jun 20101,0692,29270.364.91$86,469
May 20105371,97271.124.24$46,543
Apr 20108971,51481.694.12$79,518
Mar 20109052,32778.394.39$81,155
Feb 20109101,69273.585.44$76,166
Jan 20109072,07174.365.96$79,796
Dec 20099062,47871.445.48$78,313
Nov 20098992,60174.593.75$76,814
Oct 20099012,78872.544.11$76,818
Sep 20098942,80965.543.06$67,202
Aug 20098912,86067.423.22$69,276
Jul 20097913,11561.133.46$59,146
Jun 20098962,78666.163.90$70,131
May 20098232,39354.743.93$54,445
Apr 20091,2562,18746.773.59$66,589
Mar 20097162,57342.144.06$40,616
Feb 20091,4252,58132.814.63$58,712
Jan 20099042,74435.865.37$47,155
Dec 20089252,93737.105.98$51,872
Nov 20081,0722,51855.496.86$76,760
Oct 20081,0682,84575.246.92$100,049
Sep 20081,0641,900101.767.88$123,239
Aug 20087012,262114.228.48$99,257
Jul 20087092,447131.0811.39$120,806
Jun 20081,2361,972131.3313.03$188,024
May 20081,2292,651123.1711.57$182,059
Apr 20088642,874110.3110.45$125,355
Mar 20081,2413,288101.909.66$158,233
Feb 20081,0593,11792.538.77$125,327
Jan 20081,0712,91990.388.21$120,750
Dec 20071,2403,11188.337.30$132,246
Nov 20071,2162,86891.677.29$132,383
Oct 20071,0443,80082.856.92$112,799
Sep 20071,2202,88475.846.24$110,533
Aug 20071,0322,53869.066.39$87,483
Jul 20071,0603,08370.906.39$94,848
Jun 20071,0453,18862.007.55$88,854
May 20071,5533,46658.747.85$118,418
Apr 20078922,95259.617.81$76,213
Mar 20071,2452,90956.927.30$92,107
Feb 20071,2682,53355.108.22$90,678
Jan 20071,0732,30650.306.73$69,484
Dec 20067671,72256.656.92$55,364
Nov 20066721,66654.207.62$49,113
Oct 20067151,98854.906.01$51,209
Sep 20067131,53660.085.04$50,574
Aug 20064581,93068.717.34$45,635
Jul 20065731,37569.376.34$48,470
Jun 20063221,50266.286.38$30,931
May 20065721,62666.016.42$48,205
Apr 20069391,79664.397.36$73,682
Mar 20067091,89956.707.08$53,651
Feb 20064011,62257.597.75$35,666
Jan 20067851,83560.598.93$63,956
Dec 20056862,09754.9413.42$65,821
Nov 20056561,40154.6910.59$50,711
Oct 20055321,87858.3413.80$56,945
Sep 200541788061.4512.08$36,254
Aug 20056741,73561.519.80$58,455
Jul 20055401,68455.697.84$43,281
Jun 20055181,69752.337.38$39,633
May 20056511,68645.226.65$40,652
Apr 20055281,61549.207.36$37,865
Mar 20058641,65150.377.15$55,332
Feb 20055901,37345.226.31$35,346
Jan 20056451,61243.166.32$38,030
Dec 20046571,59639.866.75$36,963
Nov 20047181,56345.286.33$42,405
Oct 20045401,68349.706.52$37,803
Sep 20046781,53043.245.28$37,401
Aug 20043611,58042.375.55$24,066
Jul 20045841,73238.286.08$32,893
Jun 20045971,69736.106.43$32,469
May 20045081,65537.486.49$29,788
Apr 20047751,58534.475.86$36,000
Mar 20046371,61334.365.53$30,807
Feb 20046221,48632.455.51$28,371
Jan 20046051,60732.036.30$29,502
Dec 20037081,61230.266.30$31,582
Nov 20037281,59328.804.60$28,286
Oct 20034511,57328.174.76$20,192
Sep 20037201,61026.314.75$26,590
Aug 20036221,71629.765.13$27,313
Jul 20037091,57829.415.17$29,011
Jun 20035451,66928.565.98$25,551
May 20037181,72726.595.97$29,406
Apr 20035431,66526.675.41$23,485
Mar 20036471,59731.146.10$29,883
Feb 20037141,49033.487.93$35,714
Jan 20036511,62630.315.58$28,808
Dec 20028171,67126.914.85$30,096
Nov 20024561,46824.664.14$17,318
Oct 20027691,42626.464.23$26,378
Sep 20024621,57127.443.64$18,388
Aug 20026981,87125.963.16$24,040
Jul 20026951,84124.583.06$22,720
Jun 20025521,81923.733.34$19,171
May 20025831,88424.663.58$21,129
Apr 20026521,82823.653.51$21,840
Mar 20027441,57922.003.10$21,267
Feb 20024841,58418.222.38$12,582
Jan 20029131,75317.172.38$19,841
Dec 20014981,75916.932.36$12,590
Nov 20016951,62718.072.41$16,472
Oct 20016481,66019.782.53$17,015
Sep 20017151,64424.262.25$21,047
Aug 20015391,76424.873.05$18,791
Jul 20018241,85623.933.20$25,652
Jun 20015541,88424.563.82$20,811
May 20017532,01725.524.31$27,904
Apr 20015871,90924.685.34$24,672
Mar 20017161,91324.545.38$27,856
Feb 20016081,54627.755.77$25,788
Jan 20017941,81427.478.40$37,047
Dec 20007061,74926.889.12$34,933
Nov 20008901,70432.215.66$38,308
Oct 20006191,75231.235.15$28,346
Sep 20006921,74731.875.19$31,115
Aug 20007381,82729.644.54$30,170
Jul 20006401,84928.534.09$25,821
Jun 20007581,74829.304.40$29,896
May 20007111,72627.263.68$25,733
Apr 20008661,62224.513.12$26,280
Mar 20005871,63528.422.86$21,358
Feb 20007161,53727.622.73$23,967
Jan 20008141,61725.272.48$24,581
Dec 19996801,59624.282.42$20,379
Nov 19997611,63623.192.43$21,630
Oct 19996651,74420.982.80$18,841
Sep 19998241,75221.752.62$22,510
Aug 19997571,84719.262.88$19,891
Jul 19996641,85217.892.37$16,273
Jun 19996651,70615.942.36$14,630
May 19998341,81715.792.32$17,386
Apr 19997671,71515.102.21$15,369
Mar 19995761,73612.471.84$10,374
Feb 19998761,5869.981.82$11,625
Jan 19997881,72610.381.90$11,459
Dec 19988751,6789.201.77$11,026
Nov 19981,1571,71010.892.19$16,337
Oct 19985461,68112.421.97$10,092
Sep 19987641,56812.592.08$12,884
Aug 19985791,59511.301.91$9,585
Jul 19981,41864211.742.24$18,084
Jun 1998111,62211.242.24$3,752
May 19986911,78012.622.21$12,648
Apr 19988351,81813.042.51$15,443
Mar 19987001,81312.802.31$13,147
Feb 19987911,60213.952.30$14,718
Jan 19986991,75814.702.15$14,063
Dec 19979431,62416.322.41$19,305
Nov 19977951,71818.193.09$19,767
Oct 19978831,72719.253.15$22,437
Sep 19975961,77417.742.95$15,815
Aug 19977991,71517.862.55$18,652
Jul 19979301,82317.582.25$20,446
Jun 19974661,86117.242.26$12,234
May 19971,0151,95818.972.31$23,775
Apr 19971,1051,81417.882.08$23,536
Mar 19973621,89518.951.94$10,535
Feb 19978731,66420.492.21$21,558
Jan 19971,0611,85823.483.54$31,489
Dec 19965831,88023.32—$13,596
Nov 19969481,96221.97—$20,828
Oct 19968342,02023.31—$19,441
Sep 19968531,96922.22—$18,954
Aug 19969822,22020.26—$19,895
Jul 19969052,68319.55—$17,693
Jun 19969062,20718.73—$16,969
May 19967762,20519.43—$15,078
Apr 19961,005021.51—$21,618
Mar 19968902,03419.38—$17,248
Feb 19969111,92216.98—$15,469
Jan 19969252,12617.07—$15,790
Dec 19951,0172,08617.19—$17,482
Nov 19959022,14016.00—$14,432
Oct 19951,1482,33215.43—$17,714
Sep 19959142,26616.18—$14,789
Aug 19959492,23415.92—$15,108
Jul 19957812,29215.24—$11,902
Jun 19951,1152,18816.41—$18,297
May 199578724617.56—$13,820
Apr 19951,1022,35617.73—$19,538
Mar 19958262,18816.44—$13,579
Feb 19951,1232,05816.58—$18,619
Jan 19958782,28815.92—$13,978
Dec 19941,0132,48915.03—$15,225
Nov 19941,1562,47415.90—$18,380
Oct 19941,1272,69115.58—$17,559
Sep 19941,0992,67615.29—$16,804
Aug 19941,1053,02316.13—$17,824
Jul 19941,0802,90217.56—$18,965
Jun 19949132,85917.09—$15,603
May 19941,0852,68715.88—$17,230
Apr 19941,1092,60514.14—$15,681
Mar 19941,2012,47612.46—$14,964
Feb 19941,1432,22212.50—$14,288
Jan 19942,2932,42912.66—$29,029
Dec 19933752,58412.33—$4,624
Nov 19937162,52214.49—$10,375
Oct 19931,1762,73815.85—$18,640
Sep 19931,2522,71115.03—$18,818
Aug 19931,1382,94615.66—$17,821
Jul 19931,1972,77615.46—$18,506
Jun 19931,1782,80916.79—$19,779
May 19931,0732,81017.68—$18,971
Apr 19931,1052,60318.05—$19,945
Mar 19931,2732,62018.14—$23,092
Feb 19931,5862,29217.90—$28,389
Jan 19938792,64116.93—$14,881

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                  885 bbl  × $106.41 =    $94,173
Casinghead gas     3,565 Mcf  × $  3.05 =    $10,858

────────────────────────────────────────────────────
Month total                                 $105,031

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/28565 is the state's own key, not one this site invented.