HARBAUGH "A"

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

Oil lease lease 4871District 10Field 54573500NGPA filingOilCasinghead gasSaveExport
Value, all time
$428 k
Jan 1993 – May 2026
Value, last 12 filed months
$6 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 31 leases and 52 wells, and the rule below applies to all of them.

Discovered
1979-06-07
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 1999-08-04.

The Commission's schedule remark for this field reads: AOF-1 AND AOF-2 EFFECTIVE 11/01/1999.

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA5none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition8,198 bbl$268,018
Casinghead gasProduction70,769 Mcf$159,661
Total$427,679

31,037 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 (3)

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 36.0773, -100.8436. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

36.07689, -100.84296 · 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
66.7%
2 of 3 wells
With a plug date
66.7%
2 of 3 wells
Median depth
7,422 ft
3 wells filed one
Completion to plug
26.0 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
266.7%
A plug date is filed
266.7%
BothOn the schedule and plugged. Neither fact cancels the other.
266.7%
NeitherNo plug date, and not on the schedule.
133.3%

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 7,384 and 8,909 ft, median 7,422 ft, over the 3 wells that filed a depth.

Completions filed
Sep 1981 – Aug 1982
3 of 3 wells
Plug dates filed
Nov 1991 – Jun 2024
2 of 3 wells; 1 filed none

Last completion to plug: a median of 26.0 years across the 2 wells that filed both dates, with the middle half between 17.6 years and 34.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-3573109211428,909 ftAug 1982Nov 1991Yes
42-3573116961427,422 ftOct 1981Jun 2024Yes
42-3573115381427,384 ftSep 1981

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 2026594106.413.05$6,290
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 20240880.301.55$12
Feb 20240476.091.78$7
Jan 202401073.023.30$33
Dec 202301071.262.61$26
Nov 202302477.892.81$67
Oct 202303085.443.09$93
Sep 202302689.042.74$71
Aug 202302680.522.67$69
Jul 20231822474.852.64$13,686
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 202302476.533.39$81
Dec 202201876.415.73$103
Nov 202201885.005.65$102
Oct 202202287.185.86$129
Sep 202202484.888.16$196
Aug 202202894.529.13$256
Jul 2022028101.587.54$211
Jun 2022028115.097.98$223
May 2022012109.378.43$101
Apr 2022040104.226.84$274
Mar 2022012108.885.08$61
Feb 202201491.054.86$68
Jan 202204481.844.54$200
Dec 202101471.323.90$55
Nov 202103277.435.24$168
Oct 202103879.795.71$217
Sep 202103669.865.35$193
Aug 202103066.024.22$127
Jul 202104670.783.98$183
Jun 202104669.493.38$156
May 202104863.483.02$145
Apr 20211781260.362.76$10,777
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 20200434.901.69$7
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200230.341.86$4
Feb 20200449.881.98$8
Jan 202001257.252.09$25
Dec 20190859.012.30$18
Nov 20190855.302.75$22
Oct 201901453.472.42$34
Sep 201901455.052.66$37
Aug 20190853.112.30$18
Jul 201901056.272.46$25
Jun 20190652.782.49$15
May 20190858.482.74$22
Apr 201901262.632.75$33
Mar 20190656.803.06$18
Feb 20190050.852.79$0
Jan 201903046.033.23$97
Dec 201801046.594.19$42
Nov 20180452.934.24$17
Oct 20180861.443.40$27
Sep 20180859.543.11$25
Aug 20180059.403.07$0
Jul 20180465.142.93$12
Jun 2018178860.183.08$10,737
May 20180865.382.90$23
Apr 20180863.842.90$23
Mar 20180661.222.79$17
Feb 20180861.782.77$22
Jan 201801262.874.01$48
Dec 201701457.272.92$41
Nov 201711255.423.12$93
Oct 20170849.292.98$24
Sep 20170047.523.09$0
Aug 20170645.373.00$18
Jul 20170843.873.09$25
Jun 201701042.493.09$31
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 201701046.772.98$30
Feb 20170450.452.95$12
Jan 20170449.413.42$14
Dec 201601048.763.72$37
Nov 201601242.492.64$32
Oct 20161931046.193.09$8,946
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160645.352.69$16
May 20160842.521.99$16
Apr 20160036.561.99$0
Mar 201601033.011.79$18
Feb 20160426.472.06$8
Jan 20160627.352.36$14
Dec 20150832.362.00$16
Nov 20150038.792.17$0
Oct 20150843.552.43$19
Sep 20150642.992.76$17
Aug 201501240.162.87$34
Jul 20150048.152.95$0
Jun 201501056.152.88$29
May 201501255.212.96$35
Apr 20150849.822.71$22
Mar 201501242.892.93$35
Feb 20150444.662.98$12
Jan 2015177843.433.10$7,712
Dec 20140454.693.59$14
Nov 20140070.464.25$0
Oct 20140878.303.90$31
Sep 20140086.164.05$0
Aug 201401089.394.04$40
Jul 20140696.564.18$25
Jun 201401098.164.74$47
May 201401294.734.73$57
Apr 20140295.944.81$10
Mar 201401895.895.06$91
Feb 201401097.406.19$62
Jan 20140890.404.86$39
Dec 20131801091.824.35$16,571
Nov 20130888.853.74$30
Oct 20130097.423.78$0
Sep 201306104.113.72$22
Aug 2013012104.253.52$42
Jul 2013012102.523.72$45
Jun 201301494.403.93$55
May 201302094.834.15$83
Apr 201301493.964.28$60
Mar 201301893.623.91$70
Feb 20130891.233.42$27
Jan 201301091.603.42$34
Dec 201201086.773.42$34
Nov 201201886.953.62$65
Oct 20121781889.383.40$15,971
Sep 201201294.672.92$35
Aug 201202092.662.91$58
Jul 201201485.133.02$42
Jun 201202279.822.52$55
May 201203091.612.49$75
Apr 201218228101.652.00$18,556
Mar 201208105.052.22$18
Feb 2012020101.102.57$51
Jan 201202498.092.73$66
Dec 201101896.873.24$58
Nov 201106095.723.31$199
Oct 201102684.983.65$95
Sep 20111212083.623.99$10,198
Aug 20110683.404.15$25
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 201101098.134.40$44
Apr 201102105.964.33$9
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 2007174091.677.29$15,951
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 200702762.007.55$204
May 200703258.747.85$251
Apr 2007020859.617.81$1,623
Mar 2007023556.927.30$1,716
Feb 2007020255.108.22$1,660
Jan 2007016550.306.73$1,110
Dec 2006025056.656.92$1,730
Nov 2006022654.207.62$1,722
Oct 2006015554.906.01$932
Sep 2006016560.085.04$831
Aug 200609368.717.34$683
Jul 200605769.376.34$362
Jun 200606666.286.38$421
May 2006012866.016.42$822
Apr 2006012064.397.36$883
Mar 2006019256.707.08$1,360
Feb 200618423757.597.75$12,434
Jan 2006026360.598.93$2,349
Dec 2005024254.9413.42$3,247
Nov 2005019154.6910.59$2,022
Oct 2005014958.3413.80$2,056
Sep 2005017361.4512.08$2,090
Aug 2005021561.519.80$2,106
Jul 2005010855.697.84$847
Jun 200508552.337.38$627
May 200518414645.226.65$9,292
Apr 2005015649.207.36$1,148
Mar 2005028350.377.15$2,025
Feb 2005025645.226.31$1,616
Jan 2005028943.166.32$1,827
Dec 2004014539.866.75$979
Nov 2004017245.286.33$1,089
Oct 2004020849.706.52$1,355
Sep 200405743.245.28$301
Aug 20040242.375.55$11
Jul 20041751538.286.08$6,790
Jun 2004013136.106.43$843
May 200403637.486.49$234
Apr 2004012034.475.86$703
Mar 200402634.365.53$144
Feb 200405132.455.51$281
Jan 2004020132.036.30$1,266
Dec 2003024830.266.30$1,563
Nov 2003026928.804.60$1,236
Oct 2003033028.174.76$1,571
Sep 2003026726.314.75$1,268
Aug 2003014229.765.13$728
Jul 2003013629.415.17$703
Jun 2003028928.565.98$1,729
May 2003010826.595.97$645
Apr 200316719426.675.41$5,503
Mar 2003027531.146.10$1,676
Feb 2003020433.487.93$1,617
Jan 2003016930.315.58$943
Dec 2002035126.914.85$1,704
Nov 2002040724.664.14$1,684
Oct 2002028426.464.23$1,201
Sep 2002034327.443.64$1,247
Aug 20026631525.963.16$2,710
Jul 2002013724.583.06$419
Jun 2002029223.733.34$975
May 200211933124.663.58$4,121
Apr 2002019923.653.51$699
Mar 2002026022.003.10$807
Feb 2002030918.222.38$734
Jan 2002035317.172.38$839
Dec 200117339616.932.36$3,865
Nov 2001037418.072.41$900
Oct 2001037919.782.53$958
Sep 2001036524.262.25$822
Aug 2001039124.873.05$1,194
Jul 2001036223.933.20$1,157
Jun 2001034424.563.82$1,316
May 2001037325.524.31$1,607
Apr 2001039424.685.34$2,102
Mar 200110345924.545.38$4,995
Feb 2001039527.755.77$2,278
Jan 2001035127.478.40$2,948
Dec 2000038826.889.12$3,540
Nov 200010535832.215.66$5,408
Oct 2000036531.235.15$1,878
Sep 2000035831.875.19$1,857
Aug 2000037029.644.54$1,680
Jul 20004237428.534.09$2,728
Jun 2000036229.304.40$1,592
May 2000035127.263.68$1,292
Apr 20008935924.513.12$3,300
Mar 2000038428.422.86$1,098
Feb 2000036227.622.73$987
Jan 2000039125.272.48$970
Dec 19999239924.282.42$3,201
Nov 1999039023.192.43$949
Oct 1999040520.982.80$1,136
Sep 199912039221.752.62$3,637
Aug 1999040319.262.88$1,159
Jul 1999040817.892.37$968
Jun 1999040015.942.36$945
May 1999039215.792.32$910
Apr 199918240215.102.21$3,636
Mar 1999041712.471.84$767
Feb 199903699.981.82$671
Jan 1999040010.381.90$760
Dec 199804199.201.77$743
Nov 1998047910.892.19$1,047
Oct 1998043812.421.97$863
Sep 199817142812.592.08$3,044
Aug 1998044211.301.91$843
Jul 1998045411.742.24$1,016
Jun 1998043511.242.24$973
May 1998045412.622.21$1,002
Apr 1998045413.042.51$1,137
Mar 1998048412.802.31$1,118
Feb 1998045013.952.30$1,035
Jan 199818348114.702.15$3,727
Dec 1997050416.322.41$1,215
Nov 1997047818.193.09$1,476
Oct 1997046319.253.15$1,458
Sep 1997051417.742.95$1,519
Aug 1997053217.862.55$1,359
Jul 199717360117.582.25$4,392
Jun 1997062217.242.26$1,404
May 199717855518.972.31$4,658
Apr 1997043017.882.08$896
Mar 1997057518.951.94$1,115
Feb 1997040820.492.21$900
Jan 199719053423.483.54$6,351
Dec 1996062323.32$0
Nov 199618863221.97$4,130
Oct 1996067023.31$0
Sep 1996063822.22$0
Aug 199620165520.26$4,072
Jul 1996066719.55$0
Jun 1996062718.73$0
May 199616966619.43$3,284
Apr 1996064921.51$0
Mar 199623068619.38$4,457
Feb 199618463916.98$3,124
Jan 1996067917.07$0
Dec 1995072917.19$0
Nov 1995072516.00$0
Oct 199518871915.43$2,901
Sep 1995065516.18$0
Aug 199518156115.92$2,882
Jul 1995062915.24$0
Jun 1995063616.41$0
May 199518463517.56$3,231
Apr 199517661117.73$3,120
Mar 1995067916.44$0
Feb 1995063116.58$0
Jan 199517770215.92$2,818
Dec 1994060115.03$0
Nov 1994054915.90$0
Oct 199418257415.58$2,836
Sep 1994054815.29$0
Aug 199417868916.13$2,871
Jul 1994057017.56$0
Jun 199417670217.09$3,008
May 1994055215.88$0
Apr 1994055214.14$0
Mar 199417966412.46$2,230
Feb 1994062712.50$0
Jan 199417662812.66$2,228
Dec 1993060412.33$0
Nov 1993066514.49$0
Oct 199319270815.85$3,043
Sep 199317469915.03$2,615
Aug 1993071715.66$0
Jul 1993072515.46$0
Jun 1993068016.79$0
May 19934569617.68$796
Apr 19938568018.05$1,534
Mar 19938561518.14$1,542
Feb 199312055317.90$2,148
Jan 199322969616.93$3,877

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.

May 2026 — as filed, then multipliedworked
Oil                   59 bbl  × $106.41 =     $6,278
Casinghead gas         4 Mcf  × $  3.05 =        $12

────────────────────────────────────────────────────
Month total                                   $6,290

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/4871 is the state's own key, not one this site invented.