SELBY -44-

Operated by COURSON OIL & GAS, INC. (P-5 182785) in the ALLEN-PARKER (MARMATON) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 3931District 10Field 01685500OilCasinghead gasSaveExport
Value, all time
$569 k
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 292 leases and 342 wells, and the rule below applies to all of them.

Discovered
1967-05-20
as the register files it
Field class
Oil and gas
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 160 acres. The field rule took effect on 2018-06-19.

The Commission's schedule remark for this field reads: AOF-1 AND AOF-2 EFFECTIVE 08/01/2018.

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
OilDisposition16,709 bbl$537,577
Casinghead gasProduction9,020 Mcf$30,999
Total$568,577

2,288 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 (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 36.4825, -100.7944. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

36.48246, -100.79445 · 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
50.0%
1 of 2 wells
With a plug date
50.0%
1 of 2 wells
Median depth
7,679 ft
2 wells filed one
Completion to plug
36.7 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
150.0%
A plug date is filed
150.0%
BothOn the schedule and plugged. Neither fact cancels the other.
150.0%
NeitherNo plug date, and not on the schedule.
150.0%

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 6,967 and 8,390 ft, median 7,679 ft, over the 2 wells that filed a depth.

Completions filed
Aug 1974 – Mar 1975
2 of 2 wells
Plug dates filed
Nov 2011
1 of 2 wells; 1 filed none

Last completion to plug: a median of 36.7 years across the 1 well that filed both dates, with the middle half between 36.7 years and 36.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-3573028426,967 ftMar 1975Nov 2011Yes
42-3573023318,390 ftAug 1974

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 20240080.301.55$0
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 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
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 20173047.523.09$143
Aug 2017771045.373.00$3,524
Jul 2017325043.873.09$1,558
Jun 20171404842.493.09$6,097
May 2017383045.373.26$1,822
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 201692248.763.72$521
Nov 20160042.492.64$0
Oct 2016180046.193.09$8,314
Sep 20160041.553.10$0
Aug 2016144241.442.92$703
Jul 2016651841.622.92$2,758
Jun 20160045.352.69$0
May 201601242.521.99$24
Apr 201601836.561.99$36
Mar 20160033.011.79$0
Feb 201642226.472.06$151
Jan 2016143227.352.36$459
Dec 201503432.362.00$68
Nov 201503238.792.17$69
Oct 201552043.552.43$266
Sep 201522442.992.76$152
Aug 20152003040.162.87$8,118
Jul 201551248.152.95$276
Jun 2015104456.152.88$688
May 201542455.212.96$292
Apr 201553249.822.71$336
Mar 201514442.892.93$172
Feb 20151742444.662.98$7,842
Jan 201584843.433.10$496
Dec 201415054.693.59$234
Nov 20141734270.464.25$12,368
Oct 20140878.303.90$31
Sep 201424686.164.05$358
Aug 201414889.394.04$283
Jul 20141783696.564.18$17,338
Jun 201401898.164.74$85
May 201402894.734.73$132
Apr 201404095.944.81$192
Mar 201403895.895.06$192
Feb 2014183897.406.19$17,874
Jan 2014136290.404.86$1,477
Dec 2013195091.824.35$1,962
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 20131740104.253.52$18,140
Jul 2013010102.523.72$37
Jun 201301894.403.93$71
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120886.953.62$29
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 201201292.662.91$35
Jul 20123401085.133.02$28,974
Jun 20120079.822.52$0
May 201202291.612.49$55
Apr 2012020101.652.00$40
Mar 201206105.052.22$13
Feb 2012010101.102.57$26
Jan 201201698.092.73$44
Dec 20110696.873.24$19
Nov 201101495.723.31$46
Oct 201101684.983.65$58
Sep 20111741483.623.99$14,606
Aug 201101283.404.15$50
Jul 201101294.144.52$54
Jun 201102492.904.64$111
May 201102898.134.40$123
Apr 2011014105.964.33$61
Mar 201102496.364.06$97
Feb 201101685.644.18$67
Jan 201102286.504.59$101
Dec 201002085.734.35$87
Nov 201002280.843.80$84
Oct 201001878.103.51$63
Sep 201002672.633.98$103
Aug 20101813273.684.42$13,478
Jul 201002672.554.74$123
Jun 201003070.364.91$147
May 201002471.124.24$102
Apr 201002281.694.12$91
Mar 201002278.394.39$97
Feb 201001873.585.44$98
Jan 201002474.365.96$143
Dec 200902271.445.48$121
Nov 200902874.593.75$105
Oct 200902272.544.11$90
Sep 200902265.543.06$67
Aug 200902667.423.22$84
Jul 200902261.133.46$76
Jun 200903066.163.90$117
May 200902054.743.93$79
Apr 200901846.773.59$65
Mar 200903242.144.06$130
Feb 200903232.814.63$148
Jan 20091822835.865.37$6,677
Dec 200802837.105.98$167
Nov 200803055.496.86$206
Oct 200801475.246.92$97
Sep 2008022101.767.88$173
Aug 2008032114.228.48$271
Jul 200816418131.0811.39$21,702
Jun 2008026131.3313.03$339
May 2008016123.1711.57$185
Apr 2008030110.3110.45$314
Mar 2008032101.909.66$309
Feb 200803092.538.77$263
Jan 200802090.388.21$164
Dec 20070888.337.30$58
Nov 200702691.677.29$190
Oct 20071783882.856.92$15,010
Sep 200702675.846.24$162
Aug 200703069.066.39$192
Jul 20071813470.906.39$13,050
Jun 200703262.007.55$242
May 200702858.747.85$220
Apr 200702859.617.81$219
Mar 20071922656.927.30$11,118
Feb 200702855.108.22$230
Jan 200702850.306.73$188
Dec 200602256.656.92$152
Nov 200603254.207.62$244
Oct 200603054.906.01$180
Sep 20061762660.085.04$10,705
Aug 200602268.717.34$161
Jul 200603269.376.34$203
Jun 200603266.286.38$204
May 20061793666.016.42$12,047
Apr 200603864.397.36$280
Mar 200603056.707.08$212
Feb 200603657.597.75$279
Jan 20061784460.598.93$11,178
Dec 200502654.9413.42$349
Nov 200503054.6910.59$318
Oct 200503458.3413.80$469
Sep 20051663261.4512.08$10,587
Aug 200504061.519.80$392
Jul 200503455.697.84$267
Jun 20051763852.337.38$9,491
May 200503445.226.65$226
Apr 200501649.207.36$118
Mar 20051743050.377.15$8,979
Feb 200503245.226.31$202
Jan 200502843.166.32$177
Dec 200403239.866.75$216
Nov 20040645.286.33$38
Oct 20041252449.706.52$6,369
Sep 200402243.245.28$116
Aug 200403242.375.55$178
Jul 200402838.286.08$170
Jun 20041672436.106.43$6,183
May 200403237.486.49$208
Apr 200403834.475.86$223
Mar 20041763234.365.53$6,224
Feb 200403632.455.51$198
Jan 200403232.036.30$202
Dec 200303430.266.30$214
Nov 20031742828.804.60$5,140
Oct 200303028.174.76$143
Sep 200303626.314.75$171
Aug 200303229.765.13$164
Jul 20031533229.415.17$4,665
Jun 200302028.565.98$120
May 200302226.595.97$131
Apr 20031813426.675.41$5,011
Mar 200303231.146.10$195
Feb 200303633.487.93$285
Jan 20031573230.315.58$4,937
Dec 200202026.914.85$97
Nov 200202424.664.14$99
Oct 20021682626.464.23$4,555
Sep 200203427.443.64$124
Aug 200203225.963.16$101
Jul 200203224.583.06$98
Jun 20021373223.733.34$3,358
May 200203624.663.58$129
Apr 200203223.653.51$112
Mar 20021683822.003.10$3,814
Feb 200202218.222.38$52
Jan 200203817.172.38$90
Dec 20011453016.932.36$2,526
Nov 200103218.072.41$77
Oct 20011693819.782.53$3,439
Sep 20010024.262.25$0
Aug 200103224.873.05$98
Jul 200104023.933.20$128
Jun 20011753824.563.82$4,443
May 200103025.524.31$129
Apr 200104024.685.34$213
Mar 20011793824.545.38$4,597
Feb 200103427.755.77$196
Jan 200104027.478.40$336
Dec 20001743226.889.12$4,969
Nov 200002432.215.66$136
Oct 200003631.235.15$185
Sep 20001812431.875.19$5,893
Aug 200004229.644.54$191
Jul 20001793828.534.09$5,262
Jun 200003429.304.40$150
May 20001793827.263.68$5,019
Apr 200004024.513.12$125
Mar 20001824028.422.86$5,287
Feb 200004027.622.73$109
Jan 20001703825.272.48$4,390
Dec 19990824.282.42$19
Nov 199904023.192.43$97
Oct 19991764620.982.80$3,821
Sep 199904221.752.62$110
Aug 19991816219.262.88$3,664
Jul 199904017.892.37$95
Jun 19991794215.942.36$2,952
May 199904615.792.32$107
Apr 19991852815.102.21$2,855
Mar 19991714012.471.84$2,206
Feb 19990389.981.82$69
Jan 199904010.381.90$76
Dec 1998174409.201.77$1,672
Nov 19981733610.892.19$1,963
Oct 199804012.421.97$79
Sep 19981533812.592.08$2,005
Aug 199804011.301.91$76
Jul 19981663611.742.24$2,029
Jun 19981694411.242.24$1,998
May 199803412.622.21$75
Apr 19981803613.042.51$2,437
Mar 199803812.802.31$88
Feb 19981634213.952.30$2,370
Jan 19981602414.702.15$2,404
Dec 199703016.322.41$72
Nov 19971784618.193.09$3,380
Oct 199703419.253.15$107
Sep 19971794217.742.95$3,300
Aug 199704217.862.55$107
Jul 19971764617.582.25$3,197
Jun 199703817.242.26$86
May 19971772418.972.31$3,413
Apr 19971804017.882.08$3,302
Mar 19971754218.951.94$3,398
Feb 199704020.492.21$88
Jan 19971954823.483.54$4,749
Dec 19961904223.32$4,431
Nov 199604221.97$0
Oct 19961894423.31$4,406
Sep 199604022.22$0
Aug 19961943620.26$3,930
Jul 199604419.55$0
Jun 19961784418.73$3,334
May 19961804019.43$3,497
Apr 199604421.51$0
Mar 19961825819.38$3,527
Feb 199605016.98$0
Jan 19961653817.07$2,817
Dec 199504417.19$0
Nov 19951865616.00$2,976
Oct 19951795215.43$2,762
Sep 199505816.18$0
Aug 19951785215.92$2,834
Jul 19951774415.24$2,697
Jun 199504816.41$0
May 19951825417.56$3,196
Apr 199505617.73$0
Mar 19951775816.44$2,910
Feb 199505016.58$0
Jan 19951816015.92$2,882
Dec 19941805415.03$2,705
Nov 19941805015.90$2,862
Oct 199405215.58$0
Sep 19941765015.29$2,691
Aug 199405216.13$0
Jul 19941834817.56$3,213
Jun 199405217.09$0
May 19941835015.88$2,906
Apr 19941805214.14$2,545
Mar 19941804812.46$2,243
Feb 199404412.50$0
Jan 19942074412.66$2,621
Dec 199305212.33$0
Nov 19932045014.49$2,956
Oct 199304415.85$0
Sep 19931904215.03$2,856
Aug 19931794415.66$2,803
Jul 199304215.46$0
Jun 19931814416.79$3,039
May 19931824817.68$3,218
Apr 19931834418.05$3,303
Mar 199305218.14$0
Feb 19933794417.90$6,784
Jan 199303216.93$0

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.

Sep 2017 — as filed, then multipliedworked
Oil                    3 bbl  × $ 47.52 =       $143
Casinghead gas         0 Mcf  × $  3.09 =         $0

────────────────────────────────────────────────────
Month total                                     $143

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. 10/O/3931 is the state's own key, not one this site invented.