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HARPER, R. H. & L.

Operated by IV STANDARD, LLC (P-5 103468) in the TALCO field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 1635District 06Field 88207001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$26.5 M
Jan 1993 – May 2026
Value, last 12 filed months
$916 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The TALCO field

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 229 leases and 1,675 wells, and the rule below applies to all of them.

Discovered
1936-03-16
as the register files it
Field class
Oil
the register's own label
Between wells
0 ft
minimum
From a lease line
233 ft
minimum

A drilling unit in this field needs at least 5 acres. The field rule took effect on 2012-11-06.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: “NON-CURRENT RESTR.REMOVED ALSO FOR API#(159-30200,30572)-HAGANSPOR”

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
OilDisposition497,787 bbl$26,476,863
Casinghead gasProduction32 Mcf$0
Total$26,476,863

32 Mcf of this lease's gas, across 32 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 (6)

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 33.3599, -95.1242. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

33.35990, -95.12412 · 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%
4 of 6 wells
With a plug date
33.3%
2 of 6 wells
Median depth
4,396 ft
6 wells filed one
Completion to plug
22.0 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
466.7%
A plug date is filed
233.3%
BothOn the schedule and plugged. Neither fact cancels the other.
233.3%
NeitherNo plug date, and not on the schedule.
233.3%

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 4,238 and 4,420 ft, median 4,396 ft, over the 6 wells that filed a depth.

Completions filed
Sep 1972 – Aug 2016
5 of 6 wells; 1 filed none
Plug dates filed
Sep 1984 – Aug 2005
2 of 6 wells; 4 filed none

Last completion to plug: a median of 22.0 years across the 1 well that filed both dates, with the middle half between 22.0 years and 22.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

6 wells

42-4490001224,238 ft—Sep 1984Yes
42-449304082 R4,400 ftAug 2016——
42-159305295R4,420 ftNov 2005——
42-1593033054,392 ftAug 1983Aug 2005Yes
42-4493004544,378 ftOct 1973—Yes
42-4493003934,399 ftSep 1972—Yes

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 20261,0490106.413.05$111,624
Apr 20261,185098.932.87$117,232
Mar 2026747089.753.15$67,043
Feb 2026744063.503.75$47,244
Jan 2026899059.138.00$53,158
Dec 20251,377056.664.41$78,021
Nov 20251,342058.593.93$78,628
Oct 20251,346059.383.30$79,925
Sep 20251,199062.743.08$75,225
Aug 20251,052063.933.01$67,254
Jul 20251,055066.743.32$70,411
Jun 20251,052066.483.13$69,937
May 20251,165060.553.23$70,541
Apr 2025896062.363.54$55,875
Mar 20251,197067.704.27$81,037
Feb 2025308070.884.34$21,831
Jan 2025450074.324.28$33,444
Dec 2024302068.993.12$20,835
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 2024147069.612.36$10,233
Aug 2024151075.632.06$11,420
Jul 2024618079.932.15$49,397
Jun 2024916078.082.63$71,521
May 20241,211078.812.20$95,439
Apr 20241,058084.451.66$89,348
Mar 20241,213080.301.55$97,404
Feb 20241,052076.091.78$80,047
Jan 20241,055073.023.30$77,036
Dec 20231,057071.262.61$75,322
Nov 20231,058077.892.81$82,408
Oct 20231,216085.443.09$103,895
Sep 20231,069089.042.74$95,184
Aug 20231,230080.522.67$99,040
Jul 20231,210074.852.64$90,569
Jun 20231,210068.962.26$83,442
May 20231,213070.622.23$85,662
Apr 20231,197078.122.24$93,510
Mar 20231,070072.852.39$77,950
Feb 20231,043075.112.47$78,340
Jan 20231,050076.533.39$80,357
Dec 2022570076.415.73$43,554
Nov 20220085.005.65$0
Oct 2022448087.185.86$39,057
Sep 20221,016084.888.16$86,238
Aug 20221,172094.529.13$110,777
Jul 20221,0170101.587.54$103,307
Jun 20221,1810115.097.98$135,921
May 20221,0330109.378.43$112,979
Apr 20221,1920104.226.84$124,230
Mar 20221,3050108.885.08$142,088
Feb 20221,052091.054.86$95,785
Jan 20221,200081.844.54$98,208
Dec 20211,183071.323.90$84,372
Nov 20211,200077.435.24$92,916
Oct 20211,198079.795.71$95,588
Sep 20211,201069.865.35$83,902
Aug 20211,324066.024.22$87,410
Jul 20211,226070.783.98$86,776
Jun 20211,196069.493.38$83,110
May 20211,186063.483.02$75,287
Apr 20211,368060.362.76$82,572
Mar 20211,169061.302.72$71,660
Feb 2021894057.805.55$51,673
Jan 20211,057050.412.81$53,283
Dec 20201,500044.642.68$66,960
Nov 20201,195038.772.71$46,330
Oct 20201,323036.972.48$48,911
Sep 20201,486037.091.99$55,116
Aug 20201,211039.982.39$48,416
Jul 2020890038.371.83$34,149
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20201,041014.751.80$15,355
Mar 20201,495030.341.86$45,358
Feb 20201,368049.881.98$68,236
Jan 20201,352057.252.09$77,402
Dec 20191,651059.012.30$97,426
Nov 20191,338055.302.75$73,991
Oct 20191,478053.472.42$79,029
Sep 20191,637055.052.66$90,117
Aug 20191,497053.112.30$79,506
Jul 20191,639056.272.46$92,227
Jun 20191,347052.782.49$71,095
May 20191,514058.482.74$88,539
Apr 20191,214062.632.75$76,033
Mar 20191,358056.803.06$77,134
Feb 20191,352050.852.79$68,749
Jan 20191,449046.033.23$66,697
Dec 20181,351046.594.19$62,943
Nov 20181,363052.934.24$72,144
Oct 20181,498061.443.40$92,037
Sep 20181,198059.543.11$71,329
Aug 20181,041059.403.07$61,835
Jul 20181,339065.142.93$87,222
Jun 20181,343060.183.08$80,822
May 20181,267065.382.90$82,836
Apr 20181,230063.842.90$78,523
Mar 20181,521061.222.79$93,116
Feb 20181,352061.782.77$83,527
Jan 20181,099062.874.01$69,094
Dec 20171,261057.272.92$72,217
Nov 20171,424055.423.12$78,918
Oct 20171,379049.292.98$67,971
Sep 20171,195047.523.09$56,786
Aug 20171,178045.373.00$53,446
Jul 20171,372043.873.09$60,190
Jun 20171,351042.493.09$57,404
May 20171,281045.373.26$58,119
Apr 20171,401047.933.21$67,150
Mar 20171,331046.772.98$62,251
Feb 20171,344050.452.95$67,805
Jan 20171,042049.413.42$51,485
Dec 20161,215048.763.72$59,243
Nov 20161,197042.492.64$50,861
Oct 20161,346046.193.09$62,172
Sep 20161,057041.553.10$43,918
Aug 20161,337041.442.92$55,405
Jul 20161,196041.622.92$49,778
Jun 2016910045.352.69$41,269
May 20161,206042.521.99$51,279
Apr 20161,195036.561.99$43,689
Mar 20161,193033.011.79$39,381
Feb 20161,059026.472.06$28,032
Jan 20161,365027.352.36$37,333
Dec 20151,068032.362.00$34,560
Nov 20151,367038.792.17$53,026
Oct 20151,180043.552.43$51,389
Sep 20151,205042.992.76$51,803
Aug 20151,657040.162.87$66,545
Jul 20151,693048.152.95$81,518
Jun 20151,650056.152.88$92,648
May 20151,364055.212.96$75,306
Apr 20151,539049.822.71$76,673
Mar 20151,659042.892.93$71,155
Feb 2015920044.662.98$41,087
Jan 20151,372043.433.10$59,586
Dec 20141,689054.693.59$92,371
Nov 20141,503070.464.25$105,901
Oct 20141,488078.303.90$116,510
Sep 20141,509086.164.05$130,015
Aug 20141,634089.394.04$146,063
Jul 20141,477096.564.18$142,619
Jun 20141,490098.164.74$146,258
May 20141,497094.734.73$141,811
Apr 20141,799095.944.81$172,596
Mar 20141,346095.895.06$129,068
Feb 20141,367097.406.19$133,146
Jan 20141,557090.404.86$140,753
Dec 20131,700091.824.35$156,094
Nov 20131,411088.853.74$125,367
Oct 20131,564097.423.78$152,365
Sep 20131,0780104.113.72$112,231
Aug 20139190104.253.52$95,806
Jul 20131,2440102.523.72$127,535
Jun 20131,235094.403.93$116,584
May 20131,054094.834.15$99,951
Apr 20131,195093.964.28$112,282
Mar 20131,357093.623.91$127,042
Feb 20131,371091.233.42$125,076
Jan 20131,110091.603.42$101,676
Dec 20121,293086.773.42$112,194
Nov 2012999086.953.62$86,863
Oct 20121,128089.383.40$100,821
Sep 20121,202094.672.92$113,793
Aug 20121,450092.662.91$134,357
Jul 20121,272085.133.02$108,285
Jun 20121,244079.822.52$99,296
May 20121,580091.612.49$144,744
Apr 20129630101.652.00$97,889
Mar 20121,1590105.052.22$121,753
Feb 20121,1350101.102.57$114,749
Jan 20121,140098.092.73$111,823
Dec 20111,150096.873.24$111,401
Nov 2011954095.723.31$91,317
Oct 20111,301084.983.65$110,559
Sep 2011985083.623.99$82,366
Aug 20111,112083.404.15$92,741
Jul 20111,080094.144.52$101,671
Jun 20111,002092.904.64$93,086
May 20111,133098.134.40$111,181
Apr 20119840105.964.33$104,265
Mar 20111,102096.364.06$106,189
Feb 2011982085.644.18$84,098
Jan 20111,132086.504.59$97,918
Dec 20101,071085.734.35$91,817
Nov 20101,102080.843.80$89,086
Oct 20101,097078.103.51$85,676
Sep 20101,102072.633.98$80,038
Aug 20101,128073.684.42$83,111
Jul 20101,122072.554.74$81,401
Jun 20101,140070.364.91$80,210
May 20101,446071.124.24$102,840
Apr 20101,511081.694.12$123,434
Mar 20101,357078.394.39$106,375
Feb 20101,342073.585.44$98,744
Jan 20101,461074.365.96$108,640
Dec 20091,469071.445.48$104,945
Nov 20091,315074.593.75$98,086
Oct 20091,309072.544.11$94,955
Sep 20091,298065.543.06$85,071
Aug 20091,354067.423.22$91,287
Jul 20091,322061.133.46$80,814
Jun 20091,363066.163.90$90,176
May 20091,183054.743.93$64,757
Apr 20091,585046.773.59$74,130
Mar 20091,173042.144.06$49,430
Feb 20091,359032.814.63$44,589
Jan 20091,447035.865.37$51,889
Dec 20081,531037.105.98$56,800
Nov 20081,539055.496.86$85,399
Oct 20081,633075.246.92$122,867
Sep 20081,6820101.767.88$171,160
Aug 20081,8640114.228.48$212,906
Jul 20081,5130131.0811.39$198,324
Jun 20081,3100131.3313.03$172,042
May 20081,3640123.1711.57$168,004
Apr 20081,1210110.3110.45$123,658
Mar 20081,1070101.909.66$112,803
Feb 20081,129092.538.77$104,466
Jan 20081,006090.388.21$90,922
Dec 2007989088.337.30$87,358
Nov 2007977091.677.29$89,562
Oct 2007942082.856.92$78,045
Sep 20071,178075.846.24$89,340
Aug 20071,171069.066.39$80,869
Jul 20071,297070.906.39$91,957
Jun 20071,167062.007.55$72,354
May 20071,192058.747.85$70,018
Apr 20071,222059.617.81$72,843
Mar 20071,376056.927.30$78,322
Feb 20071,202055.108.22$66,230
Jan 20071,499050.306.73$75,400
Dec 20061,509056.656.92$85,485
Nov 20061,485054.207.62$80,487
Oct 20061,646054.906.01$90,365
Sep 20061,893060.085.04$113,731
Aug 20061,415068.717.34$97,225
Jul 20062,208069.376.34$153,169
Jun 20062,461066.286.38$163,115
May 20062,261066.016.42$149,249
Apr 20062,458064.397.36$158,271
Mar 20061,570056.707.08$89,019
Feb 20062,357057.597.75$135,740
Jan 20062,646060.598.93$160,321
Dec 20052,592054.9413.42$142,404
Nov 20052,772054.6910.59$151,601
Oct 20051,723058.3413.80$100,520
Sep 20052,021061.4512.08$124,190
Aug 20052,536061.519.80$155,989
Jul 20052,806055.697.84$156,266
Jun 20052,837052.337.38$148,460
May 20053,272045.226.65$147,960
Apr 20053,734049.207.36$183,713
Mar 20051,493050.377.15$75,202
Feb 20051,143045.226.31$51,686
Jan 20051,341043.166.32$57,878
Dec 20041,298039.866.75$51,738
Nov 20041,160045.286.33$52,525
Oct 20041,339049.706.52$66,548
Sep 20041,330043.245.28$57,509
Aug 20041,172042.375.55$49,658
Jul 20041,196038.286.08$45,783
Jun 20041,012036.106.43$36,533
May 2004986037.486.49$36,955
Apr 20041,141034.475.86$39,330
Mar 20041,153034.365.53$39,617
Feb 2004795032.455.51$25,798
Jan 20041,201032.036.30$38,468
Dec 2003976030.266.30$29,534
Nov 2003980028.804.60$28,224
Oct 2003847028.174.76$23,860
Sep 2003867026.314.75$22,811
Aug 2003756029.765.13$22,499
Jul 20031,249029.415.17$36,733
Jun 20031,041028.565.98$29,731
May 20031,165026.595.97$30,977
Apr 20031,176026.675.41$31,364
Mar 20031,194031.146.10$37,181
Feb 20031,093033.487.93$36,594
Jan 2003916030.315.58$27,764
Dec 20021,235026.914.85$33,234
Nov 20021,202024.664.14$29,641
Oct 20021,326026.464.23$35,086
Sep 20021,348027.443.64$36,989
Aug 20021,645025.963.16$42,704
Jul 20021,522024.583.06$37,411
Jun 20021,042023.733.34$24,727
May 20021,344024.663.58$33,143
Apr 20021,154023.653.51$27,292
Mar 20021,593022.003.10$35,046
Feb 20021,260018.222.38$22,957
Jan 20021,436017.172.38$24,656
Dec 20011,392016.932.36$23,567
Nov 20011,639018.072.41$29,617
Oct 20011,123019.782.53$22,213
Sep 20011,594024.262.25$38,670
Aug 20011,767024.873.05$43,945
Jul 20011,683023.933.20$40,274
Jun 20011,642024.563.82$40,328
May 20011,812025.524.31$46,242
Apr 20011,951024.685.34$48,151
Mar 20011,938024.545.38$47,559
Feb 20011,933027.755.77$53,641
Jan 20012,153027.478.40$59,143
Dec 20002,140026.889.12$57,523
Nov 20002,367032.215.66$76,241
Oct 20002,291031.235.15$71,548
Sep 20002,861031.875.19$91,180
Aug 20002,987029.644.54$88,535
Jul 20003,217028.534.09$91,781
Jun 20003,558029.304.40$104,249
May 20003,638027.263.68$99,172
Apr 20004,246024.513.12$104,069
Mar 20004,163028.422.86$118,312
Feb 20003,419027.622.73$94,433
Jan 2000936025.272.48$23,653
Dec 1999976024.282.42$23,697
Nov 1999945023.192.43$21,915
Oct 1999990020.982.80$20,770
Sep 19991,584021.752.62$34,452
Aug 19991,102019.262.88$21,225
Jul 1999779017.892.37$13,936
Jun 1999543015.942.36$8,655
May 19991,013015.792.32$15,995
Apr 1999305015.102.21$4,606
Mar 1999157012.471.84$1,958
Feb 199930809.981.82$3,074
Jan 1999305010.381.90$3,166
Dec 1998009.201.77$0
Nov 1998778010.892.19$8,472
Oct 1998790012.421.97$9,812
Sep 1998774012.592.08$9,745
Aug 1998720011.301.91$8,136
Jul 1998643011.742.24$7,549
Jun 1998695011.242.24$7,812
May 1998508012.622.21$6,411
Apr 1998769013.042.51$10,028
Mar 1998657012.802.31$8,410
Feb 1998734013.952.30$10,239
Jan 1998733014.702.15$10,775
Dec 1997804016.322.41$13,121
Nov 1997750018.193.09$13,643
Oct 1997738019.253.15$14,207
Sep 1997924017.742.95$16,392
Aug 1997926017.862.55$16,538
Jul 1997928017.582.25$16,314
Jun 1997726017.242.26$12,516
May 1997726018.972.31$13,772
Apr 1997729017.882.08$13,035
Mar 1997936018.951.94$17,737
Feb 1997729020.492.21$14,937
Jan 1997905023.483.54$21,249
Dec 1996715023.32—$16,674
Nov 1996935021.97—$20,542
Oct 1996934023.31—$21,772
Sep 1996780022.22—$17,332
Aug 19961,107020.26—$22,428
Jul 1996685019.55—$13,392
Jun 1996838018.73—$15,696
May 1996937019.43—$18,206
Apr 1996732021.51—$15,745
Mar 1996750019.38—$14,535
Feb 1996932016.98—$15,825
Jan 1996755017.07—$12,888
Dec 1995930017.19—$15,987
Nov 1995749016.00—$11,984
Oct 1995924115.43—$14,257
Sep 1995742116.18—$12,006
Aug 1995942115.92—$14,997
Jul 1995931115.24—$14,188
Jun 1995612116.41—$10,043
May 1995942117.56—$16,542
Apr 1995721117.73—$12,783
Mar 1995921116.44—$15,141
Feb 1995746116.58—$12,369
Jan 1995935115.92—$14,885
Dec 19941,148115.03—$17,254
Nov 1994738015.90—$11,734
Oct 1994935015.58—$14,567
Sep 1994921115.29—$14,082
Aug 1994928116.13—$14,969
Jul 19941,116117.56—$19,597
Jun 1994899117.09—$15,364
May 1994191115.88—$3,033
Apr 1994192114.14—$2,715
Mar 1994359112.46—$4,473
Feb 1994188112.50—$2,350
Jan 1994957112.66—$12,116
Dec 19931,144112.33—$14,106
Nov 19931,137114.49—$16,475
Oct 1993947115.85—$15,010
Sep 19931,124115.03—$16,894
Aug 1993953115.66—$14,924
Jul 19931,122115.46—$17,346
Jun 1993930116.79—$15,615
May 1993931117.68—$16,460
Apr 1993919118.05—$16,588
Mar 19931,159118.14—$21,024
Feb 1993764117.90—$13,676
Jan 19931,096116.93—$18,555

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                1,049 bbl  × $106.41 =   $111,624
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                 $111,624

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. 06/O/1635 is the state's own key, not one this site invented.