KORUS, C. F. -D-

Operated by PILLAR EFS, LLC (P-5 665543) in the DINSMOOR (CARRIZO) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 509District 01Field 24922333OilCasinghead gasSaveExport
Value, all time
$2.1 M
Jan 1993 – May 2026
Value, last 12 filed months
$0
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 4 leases and 7 wells, and the rule below applies to all of them.

Discovered
1952-05-26
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres.

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
OilDisposition48,943 bbl$2,107,688
Casinghead gasProduction20 Mcf$0
Total$2,107,688

20 Mcf of this lease's gas, across 20 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 (2)

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 28.8974, -98.3626. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

28.89742, -98.36256 · 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%
2 of 2 wells
With a plug date
100.0%
2 of 2 wells
Median depth
2,059 ft
2 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
2100.0%
A plug date is filed
2100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
2100.0%
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 2,058 and 2,060 ft, median 2,059 ft, over the 2 wells that filed a depth.

Plug dates filed
Dec 2024 – Dec 2025
2 of 2 wells

2 wells

42-0130086012,058 ftDec 2024Yes
42-0130086122,060 ftDec 2025Yes

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 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 202461080.301.55$4,898
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20239075.112.47$676
Jan 20230076.533.39$0
Dec 2022142076.415.73$10,850
Nov 2022152085.005.65$12,920
Oct 20220087.185.86$0
Sep 2022152084.888.16$12,902
Aug 20220094.529.13$0
Jul 20221440101.587.54$14,628
Jun 202200115.097.98$0
May 20221510109.378.43$16,515
Apr 202200104.226.84$0
Mar 20221510108.885.08$16,441
Feb 20220091.054.86$0
Jan 2022298081.844.54$24,388
Dec 20210071.323.90$0
Nov 2021145077.435.24$11,227
Oct 2021149079.795.71$11,889
Sep 20210069.865.35$0
Aug 2021142066.024.22$9,375
Jul 2021143070.783.98$10,122
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 2021151060.362.76$9,114
Mar 2021147061.302.72$9,011
Feb 20210057.805.55$0
Jan 2021154050.412.81$7,763
Dec 2020149044.642.68$6,651
Nov 20200038.772.71$0
Oct 2020145036.972.48$5,361
Sep 20200037.091.99$0
Aug 2020147039.982.39$5,877
Jul 2020148038.371.83$5,679
Jun 2020146034.901.69$5,095
May 20200016.921.81$0
Apr 2020147014.751.80$2,168
Mar 2020155030.341.86$4,703
Feb 2020146049.881.98$7,282
Jan 2020142057.252.09$8,130
Dec 2019145059.012.30$8,556
Nov 2019145055.302.75$8,019
Oct 20190053.472.42$0
Sep 2019144055.052.66$7,927
Aug 2019143053.112.30$7,595
Jul 2019156056.272.46$8,778
Jun 2019158052.782.49$8,339
May 2019143058.482.74$8,363
Apr 20190062.632.75$0
Mar 2019139056.803.06$7,895
Feb 2019147050.852.79$7,475
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 2018143052.934.24$7,569
Oct 20180061.443.40$0
Sep 2018147059.543.11$8,752
Aug 2018141059.403.07$8,375
Jul 20180065.142.93$0
Jun 2018147060.183.08$8,846
May 2018143065.382.90$9,349
Apr 2018145063.842.90$9,257
Mar 2018309061.222.79$18,917
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 2017160057.272.92$9,163
Nov 20170055.423.12$0
Oct 2017311049.292.98$15,329
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 2017119043.873.09$5,221
Jun 2017155042.493.09$6,586
May 20170045.373.26$0
Apr 2017150047.933.21$7,190
Mar 20170046.772.98$0
Feb 2017150050.452.95$7,568
Jan 2017150049.413.42$7,412
Dec 20160048.763.72$0
Nov 2016153042.492.64$6,501
Oct 20160046.193.09$0
Sep 2016298041.553.10$12,382
Aug 20160041.442.92$0
Jul 2016148041.622.92$6,160
Jun 2016153045.352.69$6,939
May 20160042.521.99$0
Apr 2016150036.561.99$5,484
Mar 2016294033.011.79$9,705
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 2015298032.362.00$9,643
Nov 20150038.792.17$0
Oct 2015156043.552.43$6,794
Sep 20150042.992.76$0
Aug 2015140040.162.87$5,622
Jul 2015148048.152.95$7,126
Jun 2015152056.152.88$8,535
May 2015148055.212.96$8,171
Apr 2015152049.822.71$7,573
Mar 20150042.892.93$0
Feb 2015154044.662.98$6,878
Jan 2015148043.433.10$6,428
Dec 20140054.693.59$0
Nov 2014146070.464.25$10,287
Oct 20140078.303.90$0
Sep 2014228086.164.05$19,644
Aug 2014141089.394.04$12,604
Jul 20140096.564.18$0
Jun 2014151098.164.74$14,822
May 20140094.734.73$0
Apr 2014145095.944.81$13,911
Mar 2014142095.895.06$13,616
Feb 20140097.406.19$0
Jan 2014145090.404.86$13,108
Dec 2013135091.824.35$12,396
Nov 2013142088.853.74$12,617
Oct 2013145097.423.78$14,126
Sep 201300104.113.72$0
Aug 20131450104.253.52$15,116
Jul 20131450102.523.72$14,865
Jun 2013120094.403.93$11,328
May 2013150094.834.15$14,225
Apr 2013150093.964.28$14,094
Mar 2013143093.623.91$13,388
Feb 20130091.233.42$0
Jan 2013155091.603.42$14,198
Dec 2012298086.773.42$25,857
Nov 2012153086.953.62$13,303
Oct 20120089.383.40$0
Sep 2012145094.672.92$13,727
Aug 2012152092.662.91$14,084
Jul 2012154085.133.02$13,110
Jun 2012144079.822.52$11,494
May 2012153091.612.49$14,016
Apr 201200101.652.00$0
Mar 20121440105.052.22$15,127
Feb 20121460101.102.57$14,761
Jan 2012140098.092.73$13,733
Dec 2011146096.873.24$14,143
Nov 20110095.723.31$0
Oct 2011145084.983.65$12,322
Sep 2011149083.623.99$12,459
Aug 2011149083.404.15$12,427
Jul 2011151094.144.52$14,215
Jun 20110092.904.64$0
May 2011145098.134.40$14,229
Apr 201100105.964.33$0
Mar 2011149096.364.06$14,358
Feb 2011144085.644.18$12,332
Jan 2011144086.504.59$12,456
Dec 2010144085.734.35$12,345
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 2010143072.633.98$10,386
Aug 2010144073.684.42$10,610
Jul 2010142072.554.74$10,302
Jun 20100070.364.91$0
May 2010142071.124.24$10,099
Apr 2010135081.694.12$11,028
Mar 2010131078.394.39$10,269
Feb 20100073.585.44$0
Jan 2010141074.365.96$10,485
Dec 20090071.445.48$0
Nov 2009140074.593.75$10,443
Oct 2009142072.544.11$10,301
Sep 2009143065.543.06$9,372
Aug 2009141067.423.22$9,506
Jul 20090061.133.46$0
Jun 2009149066.163.90$9,858
May 2009143054.743.93$7,828
Apr 20090046.773.59$0
Mar 2009143042.144.06$6,026
Feb 2009141032.814.63$4,626
Jan 20090035.865.37$0
Dec 2008143037.105.98$5,305
Nov 2008144055.496.86$7,991
Oct 20080075.246.92$0
Sep 20081470101.767.88$14,959
Aug 20081430114.228.48$16,333
Jul 200800131.0811.39$0
Jun 20081420131.3313.03$18,649
May 200800123.1711.57$0
Apr 20081470110.3110.45$16,216
Mar 200800101.909.66$0
Feb 2008147092.538.77$13,602
Jan 2008148090.388.21$13,376
Dec 200739088.337.30$3,445
Nov 20070091.677.29$0
Oct 2007146082.856.92$12,096
Sep 2007148075.846.24$11,224
Aug 2007148069.066.39$10,221
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 2007138058.747.85$8,106
Apr 20070059.617.81$0
Mar 2007145056.927.30$8,253
Feb 20070055.108.22$0
Jan 2007132050.306.73$6,640
Dec 2006144056.656.92$8,158
Nov 2006148054.207.62$8,022
Oct 2006143054.906.01$7,851
Sep 2006148060.085.04$8,892
Aug 2006148068.717.34$10,169
Jul 2006148069.376.34$10,267
Jun 2006149066.286.38$9,876
May 2006147066.016.42$9,703
Apr 2006149064.397.36$9,594
Mar 2006152056.707.08$8,618
Feb 2006148057.597.75$8,523
Jan 2006150060.598.93$9,089
Dec 2005148054.9413.42$8,131
Nov 2005148054.6910.59$8,094
Oct 2005145058.3413.80$8,459
Sep 20050061.4512.08$0
Aug 2005147061.519.80$9,042
Jul 2005146055.697.84$8,131
Jun 2005149052.337.38$7,797
May 2005149045.226.65$6,738
Apr 2005285049.207.36$14,022
Mar 2005144050.377.15$7,253
Feb 20050045.226.31$0
Jan 2005293043.166.32$12,646
Dec 20040039.866.75$0
Nov 2004150045.286.33$6,792
Oct 2004139049.706.52$6,908
Sep 2004139043.245.28$6,010
Aug 2004139042.375.55$5,889
Jul 2004141038.286.08$5,397
Jun 20040036.106.43$0
May 2004279037.486.49$10,457
Apr 2004148034.475.86$5,102
Mar 2004145034.365.53$4,982
Feb 2004143032.455.51$4,640
Jan 2004151032.036.30$4,837
Dec 2003148030.266.30$4,478
Nov 2003150028.804.60$4,320
Oct 2003148028.174.76$4,169
Sep 2003149026.314.75$3,920
Aug 2003149029.765.13$4,434
Jul 2003150029.415.17$4,412
Jun 2003149028.565.98$4,255
May 2003296026.595.97$7,871
Apr 2003156026.675.41$4,161
Mar 2003162031.146.10$5,045
Feb 2003152033.487.93$5,089
Jan 2003141030.315.58$4,274
Dec 2002338026.914.85$9,096
Nov 2002144024.664.14$3,551
Oct 20020026.464.23$0
Sep 2002140027.443.64$3,842
Aug 2002152025.963.16$3,946
Jul 2002153024.583.06$3,761
Jun 2002149023.733.34$3,536
May 2002157024.663.58$3,872
Apr 2002132023.653.51$3,122
Mar 2002298022.003.10$6,556
Feb 2002162018.222.38$2,952
Jan 2002159017.172.38$2,730
Dec 2001306016.932.36$5,181
Nov 20010018.072.41$0
Oct 2001305019.782.53$6,033
Sep 2001159024.262.25$3,857
Aug 2001156024.873.05$3,880
Jul 2001148023.933.20$3,542
Jun 2001154024.563.82$3,782
May 2001303025.524.31$7,733
Apr 2001151024.685.34$3,727
Mar 2001153024.545.38$3,755
Feb 2001152027.755.77$4,218
Jan 2001157027.478.40$4,313
Dec 2000161026.889.12$4,328
Nov 2000312032.215.66$10,050
Oct 2000158031.235.15$4,934
Sep 2000158031.875.19$5,035
Aug 20000029.644.54$0
Jul 2000110028.534.09$3,138
Jun 2000156029.304.40$4,571
May 2000315027.263.68$8,587
Apr 2000155024.513.12$3,799
Mar 2000156028.422.86$4,434
Feb 2000158027.622.73$4,364
Jan 2000323025.272.48$8,162
Dec 1999171024.282.42$4,152
Nov 1999181023.192.43$4,197
Oct 1999183020.982.80$3,839
Sep 1999160021.752.62$3,480
Aug 1999310019.262.88$5,971
Jul 1999149017.892.37$2,666
Jun 1999163015.942.36$2,598
May 1999159015.792.32$2,511
Apr 1999316015.102.21$4,772
Mar 1999162012.471.84$2,020
Feb 199915309.981.82$1,527
Jan 1999160010.381.90$1,661
Dec 199832009.201.77$2,944
Nov 1998153010.892.19$1,666
Oct 1998155012.421.97$1,925
Sep 1998152012.592.08$1,914
Aug 1998160011.301.91$1,808
Jul 1998311011.742.24$3,651
Jun 1998157011.242.24$1,765
May 1998324012.622.21$4,089
Apr 1998171013.042.51$2,230
Mar 1998311012.802.31$3,981
Feb 1998158013.952.30$2,204
Jan 1998170014.702.15$2,499
Dec 1997313016.322.41$5,108
Nov 1997157018.193.09$2,856
Oct 1997317019.253.15$6,102
Sep 1997167017.742.95$2,963
Aug 1997322017.862.55$5,751
Jul 1997155017.582.25$2,725
Jun 1997170017.242.26$2,931
May 1997161018.972.31$3,054
Apr 1997158017.882.08$2,825
Mar 1997163018.951.94$3,089
Feb 1997174020.492.21$3,565
Jan 1997170023.483.54$3,992
Dec 1996122023.32$2,845
Nov 1996191021.97$4,196
Oct 1996156023.31$3,636
Sep 1996156022.22$3,466
Aug 1996153020.26$3,100
Jul 1996156019.55$3,050
Jun 1996159018.73$2,978
May 1996157019.43$3,051
Apr 1996172021.51$3,700
Mar 1996316019.38$6,124
Feb 1996158016.98$2,683
Jan 1996164017.07$2,799
Dec 1995152017.19$2,613
Nov 1995158016.00$2,528
Oct 1995154015.43$2,376
Sep 1995318016.18$5,145
Aug 199583015.92$1,321
Jul 1995307015.24$4,679
Jun 1995172016.41$2,823
May 1995170017.56$2,985
Apr 1995163017.73$2,890
Mar 1995158016.44$2,598
Feb 1995155016.58$2,570
Jan 1995309015.92$4,919
Dec 1994154015.03$2,315
Nov 1994152015.90$2,417
Oct 1994151015.58$2,353
Sep 1994150015.29$2,294
Aug 1994149116.13$2,403
Jul 1994305117.56$5,356
Jun 1994149117.09$2,546
May 1994158115.88$2,509
Apr 1994307114.14$4,341
Mar 1994151112.46$1,881
Feb 1994151112.50$1,888
Jan 1994152112.66$1,924
Dec 1993143112.33$1,763
Nov 1993156114.49$2,260
Oct 1993150115.85$2,378
Sep 1993301115.03$4,524
Aug 1993149115.66$2,333
Jul 19930115.46$0
Jun 1993148116.79$2,485
May 1993148117.68$2,617
Apr 1993281118.05$5,072
Mar 1993155118.14$2,812
Feb 1993149117.90$2,667
Jan 1993299116.93$5,062

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.

Mar 2024 — as filed, then multipliedworked
Oil                   61 bbl  × $ 80.30 =     $4,898
Casinghead gas         0 Mcf  × $  1.55 =         $0

────────────────────────────────────────────────────
Month total                                   $4,898

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/509 is the state's own key, not one this site invented.