HILDEBRAND

Operated by BLACKBRUSH O & G, LLC (P-5 73059) in the PEARSALL (AUSTIN CHALK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 13559District 01Field 69981125OilCasinghead gasSaveExport
Value, all time
$34.6 M
Jan 1993 – Oct 2021
Value, last 12 filed months
$0
at the published price for each month
Months reported
346
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 1,992 leases and 3,388 wells, and the rule below applies to all of them.

Discovered
1936-12-28
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 2025-06-17.

The Commission's schedule remark for this field reads: LEASE PLAT. PRORATION PLAT IS NOT REQUIRED.

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
OilDisposition1,445,464 bbl$32,849,825
Casinghead gasProduction586,787 Mcf$1,755,022
Total$34,604,847

181,880 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 (5)

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 28.7167, -98.9704. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.4 miles.

28.71664, -98.96774 · 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
100.0%
5 of 5 wells
With a plug date
100.0%
5 of 5 wells
Median depth
11,379 ft
5 wells filed one
Completion to plug
28.1 years
median over 5 wells

What the state filed about each well

On the RRC proration schedule
5100.0%
A plug date is filed
5100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
5100.0%
NeitherNo plug date, and not on the schedule.
00.0%

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 11,102 and 12,840 ft, median 11,379 ft, over the 5 wells that filed a depth.

Completions filed
Jun 1992 – Mar 1993
5 of 5 wells
Plug dates filed
May 2018 – Mar 2021
5 of 5 wells

Last completion to plug: a median of 28.1 years across the 5 wells that filed both dates, with the middle half between 25.4 years and 28.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

5 wells

42-16333151511,102 ftMar 1993May 2018Yes
42-16333143412,840 ftFeb 1993Mar 2021Yes
42-16333139311,379 ftDec 1992May 2018Yes
42-16333130211,204 ftAug 1992Mar 2021Yes
42-16333127111,559 ftJun 1992Mar 2021Yes

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 (346)

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

346 months

Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 2016280027.352.36$7,658
Dec 201599032.362.00$3,204
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 2015175042.992.76$7,523
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 201414054.693.59$766
Nov 20147070.464.25$493
Oct 2014180078.303.90$14,094
Sep 201411086.164.05$948
Aug 201417089.394.04$1,520
Jul 20148096.564.18$772
Jun 201416098.164.74$1,571
May 2014107094.734.73$10,136
Apr 201461095.944.81$5,852
Mar 20140095.895.06$0
Feb 2014046697.406.19$2,885
Jan 201485090.404.86$7,684
Dec 2013180091.824.35$16,528
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20131094.403.93$94
May 20139094.834.15$853
Apr 20130093.964.28$0
Mar 20131093.623.91$94
Feb 2013168091.233.42$15,327
Jan 2013344091.603.42$31,510
Dec 20121086.773.42$87
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 2012207085.133.02$17,622
Jun 20127079.822.52$559
May 20120091.612.49$0
Apr 201230101.652.00$305
Mar 20121630105.052.22$17,123
Feb 201230101.102.57$303
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 2011264083.404.15$22,018
Jul 2011128094.144.52$12,050
Jun 2011163092.904.64$15,143
May 20111098.134.40$98
Apr 20111880105.964.33$19,920
Mar 2011201096.364.06$19,368
Feb 201152320285.644.18$45,634
Jan 2011386686.504.59$33,417
Dec 2010760085.734.35$65,155
Nov 20106653580.843.80$53,891
Oct 201056031678.103.51$44,845
Sep 20101,0521,44972.633.98$82,173
Aug 20107735573.684.42$57,198
Jul 20101,022072.554.74$74,146
Jun 20101,166070.364.91$82,040
May 20101,011071.124.24$71,902
Apr 20101,066081.694.12$87,082
Mar 20101,10515078.394.39$87,279
Feb 2010887073.585.44$65,265
Jan 20101,148074.365.96$85,365
Dec 20091,20164171.445.48$89,315
Nov 20091,46358374.593.75$111,312
Oct 20092,2171,17472.544.11$165,647
Sep 20091,75264765.543.06$116,809
Aug 200996985867.423.22$68,091
Jul 20091,23979661.133.46$78,498
Jun 20091,43989066.163.90$98,671
May 20091,5301,13754.743.93$88,216
Apr 20092,09294846.773.59$101,244
Mar 200996062542.144.06$42,991
Feb 20091,46477032.814.63$51,601
Jan 20091,32989735.865.37$52,476
Dec 20082,03777237.105.98$80,187
Nov 20082,09195355.496.86$122,568
Oct 200878332775.246.92$61,176
Sep 20081,282272101.767.88$132,599
Aug 2008664498114.228.48$80,067
Jul 20081,4471,170131.0811.39$202,998
Jun 20081,3591,621131.3313.03$199,603
May 20081,5771,336123.1711.57$209,702
Apr 20081,3711,300110.3110.45$164,826
Mar 20081,4361,368101.909.66$159,549
Feb 20081,5981,14792.538.77$157,923
Jan 20081,8011,44190.388.21$174,599
Dec 20071,40797188.337.30$131,371
Nov 20072,3401,30791.677.29$224,038
Oct 20072,0701,64282.856.92$182,865
Sep 20072,0861,33475.846.24$166,532
Aug 20071,9451,53569.066.39$144,127
Jul 20071,2061,11670.906.39$92,634
Jun 20071,37279262.007.55$91,042
May 20071,25087758.747.85$80,306
Apr 20071,5401,50359.617.81$103,531
Mar 20071,3982,31356.927.30$96,464
Feb 20071,7681,37355.108.22$108,697
Jan 20071,8051,16650.306.73$98,635
Dec 20061,9171,47656.656.92$118,810
Nov 20062,0651,68954.207.62$124,789
Oct 20061,9131,90254.906.01$116,462
Sep 20061,9252,01660.085.04$125,809
Aug 20061,5532,25468.717.34$123,251
Jul 20062,0901,81869.376.34$156,514
Jun 20061,9411,12666.286.38$135,838
May 20062,3351,85166.016.42$166,026
Apr 20062,9191,94864.397.36$202,293
Mar 20062,3092,27256.707.08$147,013
Feb 20063,1171,52757.597.75$191,344
Jan 20061,9411,43860.598.93$130,451
Dec 20052,9631,98554.9413.42$189,417
Nov 20051,9391,43954.6910.59$121,281
Oct 20052,4191,91858.3413.80$167,585
Sep 20052,4331,75561.4512.08$170,707
Aug 20053,2821,81261.519.80$219,628
Jul 20052,8782,03655.697.84$176,245
Jun 20053,0151,80152.337.38$171,068
May 20052,6742,15045.226.65$135,218
Apr 20053,3072,90249.207.36$184,065
Mar 20052,5072,08950.377.15$141,224
Feb 20053,3542,13445.226.31$165,138
Jan 20052,3212,08843.166.32$113,375
Dec 20042,5211,63339.866.75$111,512
Nov 20042,1531,49145.286.33$106,927
Oct 20042,8291,70149.706.52$151,683
Sep 20043,0751,70943.245.28$141,993
Aug 20042,7191,97842.375.55$126,183
Jul 20042,9402,44338.286.08$127,407
Jun 20043,3542,63536.106.43$138,030
May 20043,1751,90837.486.49$131,391
Apr 20043,2632,40234.475.86$126,548
Mar 20043,0663,00134.365.53$121,944
Feb 20043,4142,51332.455.51$124,630
Jan 20043,6173,00832.036.30$134,802
Dec 20033,5882,15230.266.30$122,134
Nov 20033,1342,24728.804.60$100,585
Oct 20033,0951,86628.174.76$96,068
Sep 20033,8142,59626.314.75$112,676
Aug 20034,2482,78729.765.13$140,717
Jul 20033,1422,35729.415.17$104,594
Jun 20033,0132,39428.565.98$100,374
May 20033,2321,85026.595.97$96,988
Apr 20032,6231,43226.675.41$77,699
Mar 20032,4891,32331.146.10$85,573
Feb 20031,52866433.487.93$56,420
Jan 20031,71685330.315.58$56,773
Dec 20021,6161,09726.914.85$48,811
Nov 20022,0521,20724.664.14$55,596
Oct 20023,2952,37626.464.23$97,234
Sep 20022,7552,61427.443.64$85,100
Aug 20023,8792,37025.963.16$108,198
Jul 20022,5682,40324.583.06$70,479
Jun 20023,5012,45623.733.34$91,277
May 20023,3201,78524.663.58$88,269
Apr 20023,6751,58323.653.51$92,474
Mar 20023,0781,57422.003.10$72,600
Feb 20022,9722,09818.222.38$59,134
Jan 20024,3273,33217.172.38$82,210
Dec 20013,9163,52516.932.36$74,632
Nov 20014,5174,72418.072.41$92,986
Oct 20014,8204,06519.782.53$105,620
Sep 20012,8224,19024.262.25$77,895
Aug 20014,2724,67824.873.05$120,527
Jul 20013,6693,96123.933.20$100,463
Jun 20013,7904,28324.563.82$109,461
May 20014,7144,22225.524.31$138,487
Apr 20013,7014,35924.685.34$114,597
Mar 20013,9063,45724.545.38$114,440
Feb 20013,8683,15827.755.77$125,549
Jan 20014,3962,73427.478.40$143,720
Dec 20002,9363,00426.889.12$106,324
Nov 20003,5314,40432.215.66$138,651
Oct 20004,703031.235.15$146,875
Sep 20004,5675,06331.875.19$171,810
Aug 20004,8655,06329.644.54$167,188
Jul 20004,1355,07628.534.09$138,731
Jun 20005,1394,70129.304.40$171,244
May 20004,7525,12527.263.68$148,398
Apr 20004,4815,53424.513.12$127,073
Mar 20004,2725,55728.422.86$137,302
Feb 20005,0364,83927.622.73$152,288
Jan 20004,2594,83625.272.48$119,621
Dec 19995,462024.282.42$132,617
Nov 19993,985023.192.43$92,412
Oct 19993,4335,36420.982.80$87,063
Sep 19995,1564,68021.752.62$124,399
Aug 19994,7286,35319.262.88$109,330
Jul 19994,9425,06717.892.37$100,433
Jun 19994,9564,25915.942.36$89,059
May 19995,3135,10215.792.32$95,734
Apr 19994,6685,21015.102.21$81,991
Mar 19995,1745,24212.471.84$74,156
Feb 19995,3534,7039.981.82$61,972
Jan 19996,3984,41710.381.90$74,803
Dec 19983,7323,7059.201.77$40,905
Nov 19985,3443,86110.892.19$66,635
Oct 19987,3613,72512.421.97$98,759
Sep 19985,4133,62512.592.08$75,699
Aug 19984,7372,79411.301.91$58,857
Jul 19982,0742,76711.742.24$30,539
Jun 19984,7193,90611.242.24$61,780
May 19985,3503,89812.622.21$76,117
Apr 19985,2384,30213.042.51$79,081
Mar 19985,8814,54512.802.31$85,773
Feb 19985,0644,08813.952.30$80,042
Jan 19986,0394,44014.702.15$98,341
Dec 19974,9873,84716.322.41$90,663
Nov 19976,0464,36118.193.09$123,445
Oct 19976,9823,94219.253.15$146,820
Sep 19975,0535,44117.742.95$105,718
Aug 19976,2244,78017.862.55$123,372
Jul 19975,1754,06117.582.25$100,101
Jun 19976,4534,29717.242.26$120,949
May 19975,4444,24818.972.31$113,079
Apr 19976,8843,18317.882.08$129,715
Mar 19977,1613,02618.951.94$141,569
Feb 19975,8063,66420.492.21$127,047
Jan 19978,1663,40323.483.54$203,783
Dec 19968,0734,30723.32$188,262
Nov 19967,4104,49221.97$162,798
Oct 19967,7364,27923.31$180,326
Sep 19967,6934,34122.22$170,938
Aug 19969,0084,51520.26$182,502
Jul 19969,2684,67519.55$181,189
Jun 19969,4193,53018.73$176,418
May 199610,0314,40919.43$194,902
Apr 19969,7344,93321.51$209,378
Mar 199610,4684,99819.38$202,870
Feb 19969,0954,12316.98$154,433
Jan 199610,5793,68817.07$180,584
Dec 199513,5824,59717.19$233,475
Nov 199512,2104,72416.00$195,360
Oct 199511,6054,71715.43$179,065
Sep 199511,5564,26916.18$186,976
Aug 199511,5413,13015.92$183,733
Jul 199512,1793,19015.24$185,608
Jun 199512,2393,46316.41$200,842
May 199511,7403,25917.56$206,154
Apr 199512,1462,80417.73$215,349
Mar 199511,8893,02216.44$195,455
Feb 199510,9792,72016.58$182,032
Jan 199512,7401,99015.92$202,821
Dec 199412,8481,78815.03$193,105
Nov 199412,9202,20115.90$205,428
Oct 199414,1863,05515.58$221,018
Sep 199414,0142,98615.29$214,274
Aug 199415,5473,46316.13$250,773
Jul 199413,8302,13817.56$242,855
Jun 199415,1361,21217.09$258,674
May 199415,54286915.88$246,807
Apr 199416,3972,11514.14$231,854
Mar 199418,1002,35312.46$225,526
Feb 199416,4132,07512.50$205,163
Jan 199419,5262,18912.66$247,199
Dec 199318,2481,50712.33$224,998
Nov 199322,9812,92614.49$332,995
Oct 199325,8653,71815.85$409,960
Sep 199328,0551,94715.03$421,667
Aug 199334,6772,63515.66$543,042
Jul 199338,9191,27115.46$601,688
Jun 199338,2531,87716.79$642,268
May 199348,3685,98217.68$855,146
Apr 199356,0696,46518.05$1,012,045
Mar 199369,56714,39018.14$1,261,945
Feb 199330,6876,69517.90$549,297
Jan 199362,02111,84816.93$1,050,016

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.

Jan 2016 — as filed, then multipliedworked
Oil                  280 bbl  × $ 27.35 =     $7,658
Casinghead gas         0 Mcf  × $  2.36 =         $0

────────────────────────────────────────────────────
Month total                                   $7,658

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. 01/O/13559 is the state's own key, not one this site invented.