HIRSCHI

Operated by BURK ROYALTY CO., LTD. (P-5 108799) in the WICHITA COUNTY REGULAR field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 10787District 09Field 97155001OilCasinghead gasSaveExport
Value, all time
$3.1 M
Jan 1993 – May 2026
Value, last 12 filed months
$105 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 1,994 leases and 19,278 wells, and the rule below applies to all of them.

Discovered
1910-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition76,467 bbl$3,138,906
Casinghead gasProduction21 Mcf$0
Total$3,138,906

21 Mcf of this lease's gas, across 21 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 (16)

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 34.1178, -98.7789. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

34.11776, -98.77833 · 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
62.5%
10 of 16 wells
With a plug date
62.5%
10 of 16 wells
Median depth
1,900 ft
15 wells filed one
Completion to plug
37.7 years
median over 8 wells

What the state filed about each well

On the RRC proration schedule
1062.5%
A plug date is filed
1062.5%
BothOn the schedule and plugged. Neither fact cancels the other.
1062.5%
NeitherNo plug date, and not on the schedule.
637.5%

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, 15 of 16 wells. Median 1,900 ft, with the middle half between 1,876 and 1,967 ft; the shallowest is 1,863 ft and the deepest 2,000 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, 12 of 16 wells, Feb 1959 – Jan 2013. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Feb 1959 – Jan 2013
12 of 16 wells; 4 filed none
Plug dates filed
Sep 1996 – Oct 2025
10 of 16 wells; 6 filed none

Last completion to plug: a median of 37.7 years across the 8 wells that filed both dates, with the middle half between 35.7 years and 40.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

16 wells

42-4850364962,000 ftDec 2024Yes
42-4858818422,000 ftNov 2024Yes
42-48532623161,922 ft
42-485881855
42-48545395201,978 ftJan 2013
42-48535578191,939 ftJul 1979Sep 1996Yes
42-48534479181,897 ftOct 1977May 2013Yes
42-48534478171,869 ftSep 1977May 2013Yes
42-48532288121,960 ftOct 1975May 2013Yes
42-48532618141,878 ftOct 1975
42-48532624151,874 ftOct 1975Mar 2022Yes
42-48532470131,900 ftAug 1975May 2013Yes
42-4853196171,873 ftOct 1974
42-4853196391,974 ftOct 1974May 2013Yes
42-4853196281,883 ftOct 1974Oct 2025Yes
42-4858818311,863 ftFeb 1959

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 2026172098.932.87$17,016
Mar 2026176089.753.15$15,796
Feb 2026173063.503.75$10,986
Jan 20260059.138.00$0
Dec 2025168056.664.41$9,519
Nov 2025167058.593.93$9,785
Oct 2025170059.383.30$10,095
Sep 2025163062.743.08$10,227
Aug 20250063.933.01$0
Jul 2025166066.743.32$11,079
Jun 2025165066.483.13$10,969
May 2025169060.553.23$10,233
Apr 2025165062.363.54$10,289
Mar 2025166067.704.27$11,238
Feb 2025167070.884.34$11,837
Jan 2025162074.324.28$12,040
Dec 2024169068.993.12$11,659
Nov 2024169069.052.20$11,669
Oct 20240071.372.28$0
Sep 2024165069.612.36$11,486
Aug 2024166075.632.06$12,555
Jul 2024168079.932.15$13,428
Jun 2024170078.082.63$13,274
May 20240078.812.20$0
Apr 2024168084.451.66$14,188
Mar 2024164080.301.55$13,169
Feb 2024170076.091.78$12,935
Jan 2024176073.023.30$12,852
Dec 2023176071.262.61$12,542
Nov 2023167077.892.81$13,008
Oct 2023167085.443.09$14,268
Sep 2023171089.042.74$15,226
Aug 2023170080.522.67$13,688
Jul 2023168074.852.64$12,575
Jun 2023169068.962.26$11,654
May 2023162070.622.23$11,440
Apr 2023165078.122.24$12,890
Mar 2023161072.852.39$11,729
Feb 20230075.112.47$0
Jan 2023322076.533.39$24,643
Dec 20220076.415.73$0
Nov 2022338085.005.65$28,730
Oct 20220087.185.86$0
Sep 2022161084.888.16$13,666
Aug 2022163094.529.13$15,407
Jul 20221710101.587.54$17,370
Jun 20221710115.097.98$19,680
May 20221730109.378.43$18,921
Apr 20221650104.226.84$17,196
Mar 20221710108.885.08$18,618
Feb 2022170091.054.86$15,479
Jan 2022170081.844.54$13,913
Dec 2021171071.323.90$12,196
Nov 20210077.435.24$0
Oct 2021170079.795.71$13,564
Sep 2021337069.865.35$23,543
Aug 20210066.024.22$0
Jul 2021335070.783.98$23,711
Jun 20210069.493.38$0
May 2021167063.483.02$10,601
Apr 2021166060.362.76$10,020
Mar 2021161061.302.72$9,869
Feb 2021173057.805.55$9,999
Jan 2021171050.412.81$8,620
Dec 2020173044.642.68$7,723
Nov 2020170038.772.71$6,591
Oct 2020166036.972.48$6,137
Sep 2020165037.091.99$6,120
Aug 2020165039.982.39$6,597
Jul 2020167038.371.83$6,408
Jun 2020337034.901.69$11,761
May 20200016.921.81$0
Apr 2020171014.751.80$2,522
Mar 20200030.341.86$0
Feb 2020152049.881.98$7,582
Jan 2020168057.252.09$9,618
Dec 2019166059.012.30$9,796
Nov 2019173055.302.75$9,567
Oct 2019173053.472.42$9,250
Sep 2019169055.052.66$9,303
Aug 2019169053.112.30$8,976
Jul 2019165056.272.46$9,285
Jun 2019169052.782.49$8,920
May 2019165058.482.74$9,649
Apr 2019403062.632.75$25,240
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 2019171046.033.23$7,871
Dec 2018169046.594.19$7,874
Nov 2018174052.934.24$9,210
Oct 2018171061.443.40$10,506
Sep 2018167059.543.11$9,943
Aug 2018170059.403.07$10,098
Jul 2018171065.142.93$11,139
Jun 2018167060.183.08$10,050
May 2018164065.382.90$10,722
Apr 2018172063.842.90$10,980
Mar 2018164061.222.79$10,040
Feb 2018172061.782.77$10,626
Jan 2018166062.874.01$10,436
Dec 2017175057.272.92$10,022
Nov 20170055.423.12$0
Oct 2017168049.292.98$8,281
Sep 2017165047.523.09$7,841
Aug 2017167045.373.00$7,577
Jul 2017168043.873.09$7,370
Jun 2017167042.493.09$7,096
May 2017170045.373.26$7,713
Apr 2017167047.933.21$8,004
Mar 2017168046.772.98$7,857
Feb 2017170050.452.95$8,577
Jan 2017168049.413.42$8,301
Dec 2016171048.763.72$8,338
Nov 2016169042.492.64$7,181
Oct 2016168046.193.09$7,760
Sep 2016171041.553.10$7,105
Aug 2016170041.442.92$7,045
Jul 2016168041.622.92$6,992
Jun 2016166045.352.69$7,528
May 2016335042.521.99$14,244
Apr 2016171036.561.99$6,252
Mar 2016167033.011.79$5,513
Feb 2016170026.472.06$4,500
Jan 2016166027.352.36$4,540
Dec 2015168032.362.00$5,436
Nov 2015168038.792.17$6,517
Oct 2015169043.552.43$7,360
Sep 2015333042.992.76$14,316
Aug 2015163040.162.87$6,546
Jul 2015166048.152.95$7,993
Jun 2015167056.152.88$9,377
May 2015166055.212.96$9,165
Apr 2015338049.822.71$16,839
Mar 2015168042.892.93$7,206
Feb 2015168044.662.98$7,503
Jan 2015336043.433.10$14,592
Dec 2014338054.693.59$18,485
Nov 2014169070.464.25$11,908
Oct 2014169078.303.90$13,233
Sep 2014173086.164.05$14,906
Aug 2014335089.394.04$29,946
Jul 2014168096.564.18$16,222
Jun 2014336098.164.74$32,982
May 2014170094.734.73$16,104
Apr 2014340095.944.81$32,620
Mar 2014170095.895.06$16,301
Feb 2014344097.406.19$33,506
Jan 2014178090.404.86$16,091
Dec 2013350091.824.35$32,137
Nov 2013172088.853.74$15,282
Oct 2013171097.423.78$16,659
Sep 20131740104.113.72$18,115
Aug 20131690104.253.52$17,618
Jul 201300102.523.72$0
Jun 2013168094.403.93$15,859
May 2013168094.834.15$15,931
Apr 20130093.964.28$0
Mar 2013168093.623.91$15,728
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 2012167091.612.49$15,299
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 2012140098.092.73$13,733
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 2011169084.983.65$14,362
Sep 20110083.623.99$0
Aug 2011168083.404.15$14,011
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 2011169098.134.40$16,584
Apr 201100105.964.33$0
Mar 2011166096.364.06$15,996
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 2010171085.734.35$14,660
Nov 20100080.843.80$0
Oct 2010171078.103.51$13,355
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 2010169072.554.74$12,261
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 2010170081.694.12$13,887
Mar 20100078.394.39$0
Feb 2010170073.585.44$12,509
Jan 20100074.365.96$0
Dec 2009169071.445.48$12,073
Nov 20090074.593.75$0
Oct 2009166072.544.11$12,042
Sep 20090065.543.06$0
Aug 2009167067.423.22$11,259
Jul 2009170061.133.46$10,392
Jun 20090066.163.90$0
May 2009168054.743.93$9,196
Apr 20090046.773.59$0
Mar 2009168042.144.06$7,080
Feb 20090032.814.63$0
Jan 2009176035.865.37$6,311
Dec 2008171037.105.98$6,344
Nov 20080055.496.86$0
Oct 2008166075.246.92$12,490
Sep 200800101.767.88$0
Aug 20081700114.228.48$19,417
Jul 20081690131.0811.39$22,153
Jun 200800131.3313.03$0
May 20081700123.1711.57$20,939
Apr 200800110.3110.45$0
Mar 20081680101.909.66$17,119
Feb 20080092.538.77$0
Jan 2008175090.388.21$15,817
Dec 2007178088.337.30$15,723
Nov 20070091.677.29$0
Oct 2007169082.856.92$14,002
Sep 2007168075.846.24$12,741
Aug 20070069.066.39$0
Jul 2007173070.906.39$12,266
Jun 2007169062.007.55$10,478
May 20070058.747.85$0
Apr 2007169059.617.81$10,074
Mar 2007173056.927.30$9,847
Feb 20070055.108.22$0
Jan 2007173050.306.73$8,702
Dec 2006171056.656.92$9,687
Nov 2006173054.207.62$9,377
Oct 20060054.906.01$0
Sep 2006170060.085.04$10,214
Aug 2006164068.717.34$11,268
Jul 2006168069.376.34$11,654
Jun 2006171066.286.38$11,334
May 20060066.016.42$0
Apr 2006168064.397.36$10,818
Mar 2006169056.707.08$9,582
Feb 2006167057.597.75$9,618
Jan 2006171060.598.93$10,361
Dec 2005170054.9413.42$9,340
Nov 20050054.6910.59$0
Oct 2005170058.3413.80$9,918
Sep 2005166061.4512.08$10,201
Aug 2005171061.519.80$10,518
Jul 2005174055.697.84$9,690
Jun 20050052.337.38$0
May 2005166045.226.65$7,507
Apr 20050049.207.36$0
Mar 2005168050.377.15$8,462
Feb 2005172045.226.31$7,778
Jan 20050043.166.32$0
Dec 2004171039.866.75$6,816
Nov 2004169045.286.33$7,652
Oct 20040049.706.52$0
Sep 2004168043.245.28$7,264
Aug 2004167042.375.55$7,076
Jul 2004164038.286.08$6,278
Jun 20040036.106.43$0
May 2004168037.486.49$6,297
Apr 2004168034.475.86$5,791
Mar 2004170034.365.53$5,841
Feb 20040032.455.51$0
Jan 2004169032.036.30$5,413
Dec 2003170030.266.30$5,144
Nov 2003167028.804.60$4,810
Oct 2003167028.174.76$4,704
Sep 20030026.314.75$0
Aug 2003169029.765.13$5,029
Jul 2003172029.415.17$5,059
Jun 2003169028.565.98$4,827
May 2003170026.595.97$4,520
Apr 2003175026.675.41$4,667
Mar 2003170031.146.10$5,294
Feb 20030033.487.93$0
Jan 2003168030.315.58$5,092
Dec 2002171026.914.85$4,602
Nov 2002169024.664.14$4,168
Oct 2002174026.464.23$4,604
Sep 2002175027.443.64$4,802
Aug 20020025.963.16$0
Jul 2002174024.583.06$4,277
Jun 2002176023.733.34$4,176
May 2002172024.663.58$4,242
Apr 2002175023.653.51$4,139
Mar 2002174022.003.10$3,828
Feb 2002174018.222.38$3,170
Jan 2002176017.172.38$3,022
Dec 2001170016.932.36$2,878
Nov 20010018.072.41$0
Oct 2001174019.782.53$3,442
Sep 2001171024.262.25$4,148
Aug 2001175024.873.05$4,352
Jul 2001139023.933.20$3,326
Jun 2001174024.563.82$4,273
May 2001175025.524.31$4,466
Apr 2001176024.685.34$4,344
Mar 2001176024.545.38$4,319
Feb 2001176027.755.77$4,884
Jan 2001181027.478.40$4,972
Dec 2000358026.889.12$9,623
Nov 2000180032.215.66$5,798
Oct 2000180031.235.15$5,621
Sep 2000175031.875.19$5,577
Aug 2000176029.644.54$5,217
Jul 2000176028.534.09$5,021
Jun 2000179029.304.40$5,245
May 2000174027.263.68$4,743
Apr 2000177024.513.12$4,338
Mar 2000354028.422.86$10,061
Feb 2000178027.622.73$4,916
Jan 2000182025.272.48$4,599
Dec 1999178024.282.42$4,322
Nov 1999362023.192.43$8,395
Oct 1999181020.982.80$3,797
Sep 1999179021.752.62$3,893
Aug 1999345019.262.88$6,645
Jul 1999176017.892.37$3,149
Jun 1999181015.942.36$2,885
May 1999174015.792.32$2,747
Apr 1999359015.102.21$5,421
Mar 1999357012.471.84$4,452
Feb 199918109.981.82$1,806
Jan 1999370010.381.90$3,841
Dec 199835909.201.77$3,303
Nov 1998181010.892.19$1,971
Oct 1998360012.421.97$4,471
Sep 1998354012.592.08$4,457
Aug 1998355011.301.91$4,012
Jul 1998359011.742.24$4,215
Jun 1998349011.242.24$3,923
May 1998361012.622.21$4,556
Apr 1998353013.042.51$4,603
Mar 1998353012.802.31$4,518
Feb 1998370013.952.30$5,162
Jan 1998362014.702.15$5,321
Dec 1997358016.322.41$5,843
Nov 1997377018.193.09$6,858
Oct 1997363019.253.15$6,988
Sep 1997353017.742.95$6,262
Aug 1997368017.862.55$6,572
Jul 1997363017.582.25$6,382
Jun 1997343017.242.26$5,913
May 1997542018.972.31$10,282
Apr 1997368017.882.08$6,580
Mar 1997369018.951.94$6,993
Feb 1997377020.492.21$7,725
Jan 1997366023.483.54$8,594
Dec 1996372023.32$8,675
Nov 1996555021.97$12,193
Oct 1996376023.31$8,765
Sep 1996370022.22$8,221
Aug 1996363020.26$7,354
Jul 1996363019.55$7,097
Jun 1996366018.73$6,855
May 1996541019.43$10,512
Apr 1996366021.51$7,873
Mar 1996368019.38$7,132
Feb 1996540016.98$9,169
Jan 1996382017.07$6,521
Dec 1995371017.19$6,377
Nov 1995369016.00$5,904
Oct 1995546015.43$8,425
Sep 1995354016.18$5,728
Aug 1995517015.92$8,231
Jul 1995350015.24$5,334
Jun 1995364016.41$5,973
May 1995556017.56$9,763
Apr 1995364017.73$6,454
Mar 1995371016.44$6,099
Feb 1995374016.58$6,201
Jan 1995370015.92$5,890
Dec 1994373015.03$5,606
Nov 1994552015.90$8,777
Oct 1994366015.58$5,702
Sep 1994548115.29$8,379
Aug 1994361116.13$5,823
Jul 1994366117.56$6,427
Jun 1994373117.09$6,375
May 1994556115.88$8,829
Apr 1994370114.14$5,232
Mar 1994374112.46$4,660
Feb 1994380112.50$4,750
Jan 1994557112.66$7,052
Dec 1993370112.33$4,562
Nov 1993368114.49$5,332
Oct 1993371115.85$5,880
Sep 1993536115.03$8,056
Aug 1993540115.66$8,456
Jul 1993358115.46$5,535
Jun 1993369116.79$6,196
May 1993536117.68$9,476
Apr 1993376118.05$6,787
Mar 1993534118.14$9,687
Feb 1993367117.90$6,569
Jan 1993366116.93$6,196

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                  172 bbl  × $ 98.93 =    $17,016
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $17,016

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. 09/O/10787 is the state's own key, not one this site invented.