MARTIN, R. S. -C-

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the CASA BLANCA field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 422District 04Field 16126001OilCasinghead gasSaveExport
Value, all time
$1.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$21 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 14 leases and 98 wells, and the rule below applies to all of them.

Discovered
1939-04-06
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 40 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
OilDisposition59,835 bbl$1,925,827
Casinghead gasProduction111 Mcf$194
Total$1,926,021

48 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 (12)

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 27.9658, -98.7098. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

27.96623, -98.70948 · 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%
9 of 12 wells
With a plug date
58.3%
7 of 12 wells
Median depth
1,139 ft
9 wells filed one
Completion to plug
27.8 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
975.0%
A plug date is filed
758.3%
BothOn the schedule and plugged. Neither fact cancels the other.
758.3%
NeitherNo plug date, and not on the schedule.
325.0%

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

Total depth in feet, 9 of 12 wells. Median 1,139 ft, with the middle half between 1,120 and 1,160 ft; the shallowest is 1,118 ft and the deepest 1,200 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, 4 of 12 wells, Jun 1986 – May 1997. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jun 1986 – May 1997
4 of 12 wells; 8 filed none
Plug dates filed
Apr 1980 – Jul 2015
7 of 12 wells; 5 filed none

Last completion to plug: a median of 27.8 years across the 2 wells that filed both dates, with the middle half between 27.8 years and 27.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

12 wells

42-1310468711,118 ftJan 2012Yes
42-1310468821,139 ftAug 1985Yes
42-1310468931,121 ftJul 2015Yes
42-1310469171,147 ftNov 1990Yes
42-1310469281,120 ftApr 1980Yes
42-1310469311Yes
42-131801869Yes
42-131801844
42-131381718R1,175 ftMay 1997
42-131374197R1,160 ftNov 1990
42-131369239W1,200 ftNov 1986Jul 2014Yes
42-1311118761,118 ftJun 1986Apr 2014Yes

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 202591056.664.41$5,156
Nov 20250058.593.93$0
Oct 202592059.383.30$5,463
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 2025155066.743.32$10,345
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 2025154074.324.28$11,445
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 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 2023139077.892.81$10,827
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 202337074.852.64$2,769
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 2023106076.533.39$8,112
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 2022142084.888.16$12,053
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 20221450109.378.43$15,859
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 2022144091.054.86$13,111
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 2021146079.795.71$11,649
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 2021154069.493.38$10,701
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 2021149050.412.81$7,511
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 2020148036.972.48$5,472
Sep 20200037.091.99$0
Aug 2020159039.982.39$6,357
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 2020151016.921.81$2,555
Apr 20200014.751.80$0
Mar 2020145030.341.86$4,399
Feb 2020155049.881.98$7,731
Jan 20200057.252.09$0
Dec 2019160059.012.30$9,442
Nov 20190055.302.75$0
Oct 2019155053.472.42$8,288
Sep 20190055.052.66$0
Aug 2019155053.112.30$8,232
Jul 20190056.272.46$0
Jun 2019152052.782.49$8,023
May 20190058.482.74$0
Apr 2019151062.632.75$9,457
Mar 20190056.803.06$0
Feb 2019156050.852.79$7,933
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 2018160052.934.24$8,469
Oct 20180061.443.40$0
Sep 2018159059.543.11$9,467
Aug 20180059.403.07$0
Jul 2018168065.142.93$10,944
Jun 2018156060.183.08$9,388
May 20180065.382.90$0
Apr 2018140063.842.90$8,938
Mar 2018153061.222.79$9,367
Feb 20180061.782.77$0
Jan 2018158062.874.01$9,933
Dec 2017161057.272.92$9,220
Nov 20170055.423.12$0
Oct 2017158049.292.98$7,788
Sep 20170047.523.09$0
Aug 2017150045.373.00$6,806
Jul 2017157043.873.09$6,888
Jun 20170042.493.09$0
May 2017154045.373.26$6,987
Apr 2017159047.933.21$7,621
Mar 20170046.772.98$0
Feb 2017159050.452.95$8,022
Jan 2017157049.413.42$7,757
Dec 20160048.763.72$0
Nov 2016157042.492.64$6,671
Oct 20160046.193.09$0
Sep 2016158041.553.10$6,565
Aug 2016159041.442.92$6,589
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 2016157042.521.99$6,676
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 2015169032.362.00$5,469
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
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 2015159043.433.10$6,905
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 2014142089.394.04$12,693
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 2014132095.944.81$12,664
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 20131590102.523.72$16,301
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 2013163091.603.42$14,931
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 2012149092.662.91$13,806
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 2012150091.612.49$13,742
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 2012166098.092.73$16,283
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 2011152094.144.52$14,309
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 2011142085.644.18$12,161
Jan 20110086.504.59$0
Dec 2010162085.734.35$13,888
Nov 20100080.843.80$0
Oct 2010175078.103.51$13,668
Sep 2010163072.633.98$11,839
Aug 20100073.684.42$0
Jul 2010172072.554.74$12,479
Jun 20100070.364.91$0
May 2010348071.124.24$24,750
Apr 20100081.694.12$0
Mar 2010167078.394.39$13,091
Feb 20100073.585.44$0
Jan 2010174074.365.96$12,939
Dec 20090071.445.48$0
Nov 2009164074.593.75$12,233
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 2009151067.423.22$10,180
Jul 20090061.133.46$0
Jun 2009148066.163.90$9,792
May 2009173054.743.93$9,470
Apr 20090046.773.59$0
Mar 2009151042.144.06$6,363
Feb 2009174032.814.63$5,709
Jan 2009173035.865.37$6,204
Dec 20080037.105.98$0
Nov 2008147055.496.86$8,157
Oct 2008162075.246.92$12,189
Sep 20081740101.767.88$17,706
Aug 200800114.228.48$0
Jul 20081640131.0811.39$21,497
Jun 20081760131.3313.03$23,114
May 20081750123.1711.57$21,555
Apr 200800110.3110.45$0
Mar 20081550101.909.66$15,795
Feb 2008175092.538.77$16,193
Jan 20080090.388.21$0
Dec 2007177088.337.30$15,634
Nov 2007321091.677.29$29,426
Oct 20070082.856.92$0
Sep 2007166075.846.24$12,589
Aug 20070069.066.39$0
Jul 2007175070.906.39$12,408
Jun 20070062.007.55$0
May 2007173058.747.85$10,162
Apr 20070059.617.81$0
Mar 2007180056.927.30$10,246
Feb 2007180055.108.22$9,918
Jan 20070050.306.73$0
Dec 2006173056.656.92$9,800
Nov 2006175054.207.62$9,485
Oct 20060054.906.01$0
Sep 2006159060.085.04$9,553
Aug 2006182068.717.34$12,505
Jul 20060069.376.34$0
Jun 2006169066.286.38$11,201
May 20060066.016.42$0
Apr 2006171064.397.36$11,011
Mar 2006176056.707.08$9,979
Feb 2006180057.597.75$10,366
Jan 20060060.598.93$0
Dec 2005165054.9413.42$9,065
Nov 2005161054.6910.59$8,805
Oct 2005175058.3413.80$10,210
Sep 2005168061.4512.08$10,324
Aug 2005179061.519.80$11,010
Jul 20050055.697.84$0
Jun 2005177052.337.38$9,262
May 20050045.226.65$0
Apr 2005176049.207.36$8,659
Mar 2005176050.377.15$8,865
Feb 2005336045.226.31$15,194
Jan 20050043.166.32$0
Dec 2004181039.866.75$7,215
Nov 2004174045.286.33$7,879
Oct 20040049.706.52$0
Sep 2004181043.245.28$7,826
Aug 2004178042.375.55$7,542
Jul 2004180038.286.08$6,890
Jun 20040036.106.43$0
May 2004179037.486.49$6,709
Apr 20040034.475.86$0
Mar 2004182034.365.53$6,254
Feb 2004142032.455.51$4,608
Jan 2004163032.036.30$5,221
Dec 20030030.266.30$0
Nov 2003142028.804.60$4,090
Oct 2003138028.174.76$3,887
Sep 2003165026.314.75$4,341
Aug 2003135029.765.13$4,018
Jul 2003171029.415.17$5,029
Jun 2003163028.565.98$4,655
May 2003151026.595.97$4,015
Apr 2003173026.675.41$4,614
Mar 2003330031.146.10$10,276
Feb 20030033.487.93$0
Jan 2003172030.315.58$5,213
Dec 2002181026.914.85$4,871
Nov 2002323024.664.14$7,965
Oct 20020026.464.23$0
Sep 2002168027.443.64$4,610
Aug 2002156025.963.16$4,050
Jul 2002173024.583.06$4,252
Jun 2002166023.733.34$3,939
May 2002175024.663.58$4,316
Apr 2002176023.653.51$4,162
Mar 2002161122.003.10$3,545
Feb 2002169118.222.38$3,082
Jan 2002175117.172.38$3,007
Dec 2001181116.932.36$3,067
Nov 20010118.072.41$2
Oct 2001170119.782.53$3,365
Sep 2001162124.262.25$3,932
Aug 2001171124.873.05$4,256
Jul 2001131123.933.20$3,138
Jun 2001161124.563.82$3,958
May 2001325125.524.31$8,298
Apr 2001170124.685.34$4,201
Mar 2001144124.545.38$3,539
Feb 2001318127.755.77$8,830
Jan 2001344127.478.40$9,458
Dec 2000148126.889.12$3,987
Nov 2000317132.215.66$10,216
Oct 2000346131.235.15$10,811
Sep 2000332131.875.19$10,586
Aug 2000332129.644.54$9,845
Jul 2000331128.534.09$9,448
Jun 2000180129.304.40$5,278
May 2000336127.263.68$9,163
Apr 2000324124.513.12$7,944
Mar 2000308128.422.86$8,756
Feb 2000321127.622.73$8,869
Jan 2000458125.272.48$11,576
Dec 1999334124.282.42$8,112
Nov 1999476123.192.43$11,041
Oct 1999334120.982.80$7,010
Sep 1999323121.752.62$7,028
Aug 1999324119.262.88$6,243
Jul 1999317117.892.37$5,674
Jun 1999258115.942.36$4,115
May 1999161115.792.32$2,545
Apr 1999489115.102.21$7,386
Mar 1999285112.471.84$3,556
Feb 199928919.981.82$2,886
Jan 1999324110.381.90$3,365
Dec 199847919.201.77$4,409
Nov 1998335110.892.19$3,650
Oct 1998324112.421.97$4,026
Sep 1998461112.592.08$5,806
Aug 1998310111.301.91$3,505
Jul 1998465111.742.24$5,461
Jun 1998337111.242.24$3,790
May 1998456112.622.21$5,757
Apr 1998328113.042.51$4,280
Mar 1998457112.802.31$5,852
Feb 1998330113.952.30$4,606
Jan 1998497114.702.15$7,308
Dec 1997470116.322.41$7,673
Nov 1997487118.193.09$8,862
Oct 1997328119.253.15$6,317
Sep 1997625117.742.95$11,090
Aug 1997324117.862.55$5,789
Jul 1997474117.582.25$8,335
Jun 1997336117.242.26$5,795
May 1997282118.972.31$5,352
Apr 1997483117.882.08$8,638
Mar 1997334118.951.94$6,331
Feb 1997338120.492.21$6,928
Jan 1997345123.483.54$8,104
Dec 1996506123.32$11,800
Nov 1996343121.97$7,536
Oct 1996342123.31$7,972
Sep 1996487122.22$10,821
Aug 1996333120.26$6,747
Jul 1996342119.55$6,686
Jun 1996326118.73$6,106
May 1996499119.43$9,696
Apr 1996333121.51$7,163
Mar 1996326119.38$6,318
Feb 1996496116.98$8,422
Jan 1996328117.07$5,599
Dec 1995344117.19$5,913
Nov 1995511116.00$8,176
Oct 1995330115.43$5,092
Sep 1995356116.18$5,760
Aug 1995343115.92$5,461
Jul 1995327115.24$4,983
Jun 1995332116.41$5,448
May 1995400117.56$7,024
Apr 1995344117.73$6,099
Mar 1995523116.44$8,598
Feb 1995167116.58$2,769
Jan 1995494115.92$7,864
Dec 1994165115.03$2,480
Nov 1994352115.90$5,597
Oct 1994336115.58$5,235
Sep 1994326115.29$4,985
Aug 1994481116.13$7,759
Jul 1994280117.56$4,917
Jun 1994353117.09$6,033
May 1994347115.88$5,510
Apr 1994336114.14$4,751
Mar 1994341112.46$4,249
Feb 1994334112.50$4,175
Jan 1994384112.66$4,861
Dec 1993552112.33$6,806
Nov 1993357114.49$5,173
Oct 1993386115.85$6,118
Sep 1993363115.03$5,456
Aug 1993580115.66$9,083
Jul 1993369115.46$5,705
Jun 1993542116.79$9,100
May 1993377117.68$6,665
Apr 1993553118.05$9,982
Mar 1993517118.14$9,378
Feb 1993372117.90$6,659
Jan 1993551116.93$9,328

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.

Dec 2025 — as filed, then multipliedworked
Oil                   91 bbl  × $ 56.66 =     $5,156
Casinghead gas         0 Mcf  × $  4.41 =         $0

────────────────────────────────────────────────────
Month total                                   $5,156

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. 04/O/422 is the state's own key, not one this site invented.