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WELCH NORTHEAST UNIT

Operated by THREE SPAN OIL & GAS, INC. (P-5 857911) in the WELCH field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 60301District 8AField 96062001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$30.4 M
Jan 1993 – May 2026
Value, last 12 filed months
$480 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The WELCH 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 67 leases and 1,426 wells, and the rule below applies to all of them.

Discovered
1941-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 2019-01-23.

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: “REQUIRED”

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
NGPA1none——

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
OilDisposition723,938 bbl$30,417,067
Casinghead gasProduction14,494 Mcf$19,538
Total$30,436,606

8,618 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 (38)

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 32.9640, -102.0690. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.4 miles.

32.96401, -102.07021 · 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
55.3%
21 of 38 wells
With a plug date
50.0%
19 of 38 wells
Median depth
4,970 ft
34 wells filed one
Completion to plug
39.6 years
median over 6 wells

What the state filed about each well

On the RRC proration schedule
2155.3%
A plug date is filed
1950.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1950.0%
NeitherNo plug date, and not on the schedule.
1744.7%

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, 34 of 38 wells. Median 4,970 ft, with the middle half between 4,949 and 4,992 ft; the shallowest is 4,895 ft and the deepest 5,030 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, 22 of 38 wells, Oct 1959 – Feb 2026. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Oct 1959 – Feb 2026
22 of 38 wells; 16 filed none
Plug dates filed
Sep 1987 – Aug 2023
19 of 38 wells; 19 filed none

Last completion to plug: a median of 39.6 years across the 6 wells that filed both dates, with the middle half between 38.3 years and 41.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

38 wells

42-1151000216024,995 ft—Apr 2007Yes
42-1153006216035,030 ft—Dec 2020Yes
42-1153041219025,000 ft—Aug 2023Yes
42-305001139024,975 ft—Jul 2007Yes
42-305002461001W4,924 ft—Feb 1988Yes
42-3051000117015,000 ft—Jan 2022Yes
42-305100049034,954 ft—Jul 2007Yes
42-30510005904W4,949 ft—Sep 1987Yes
42-305102221003W4,987 ft—Oct 2010Yes
42-3053006517064,906 ft—Jan 2022Yes
42-305300709084,911 ft—May 2020Yes
42-4450018814025,000 ft—Jan 2023Yes
42-44510035901W4,972 ft—Oct 2012Yes
42-115106071704————
42-115304111901————
42-44510217906————
42-305300629094,934 ftFeb 2026——
42-305300619104,895 ftFeb 2026——
42-3052000314034,990 ftFeb 2026——
42-445318269115,030 ftJul 2010——
42-305300669074,934 ftSep 2009Aug 2023Yes
42-305300077024,984 ftNov 2008——
42-305304689124,957 ftNov 2007——
42-3053000610044,979 ftMay 2007——
42-3053046416044,965 ftFeb 2007——
42-305300697034,944 ftDec 2006——
42-1153244316054,987 ftOct 1987——
42-1153212919044,960 ftJan 1985——
42-1153048719034,954 ftDec 1977—Yes
42-1153051617054,907 ftMar 1976——
42-445001871401W5,001 ftApr 1970Dec 2009Yes
42-305000371002X5,010 ftDec 1968——
42-305100031601W4,949 ftJan 1968Oct 2009Yes
42-30510006905W4,969 ftJan 1968Dec 2005Yes
42-305100021703W4,971 ftJan 1968Jun 2007Yes
42-115100011702W4,992 ftJan 1968Feb 2012Yes
42-305102141601WS—Mar 1967——
42-305001437014,950 ftOct 1959—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 20263570106.413.05$37,988
Apr 2026896098.932.87$88,641
Mar 2026890089.753.15$79,878
Feb 2026539063.503.75$34,227
Jan 2026362059.138.00$21,405
Dec 20251,094056.664.41$61,986
Nov 2025715058.593.93$41,892
Oct 2025348059.383.30$20,664
Sep 2025179062.743.08$11,230
Aug 2025350063.933.01$22,376
Jul 2025358066.743.32$23,893
Jun 2025535066.483.13$35,567
May 2025357060.553.23$21,616
Apr 2025363062.363.54$22,637
Mar 2025356067.704.27$24,101
Feb 2025371070.884.34$26,296
Jan 20250074.324.28$0
Dec 20241,076068.993.12$74,233
Nov 20240069.052.20$0
Oct 2024715071.372.28$51,030
Sep 2024361069.612.36$25,129
Aug 2024342075.632.06$25,865
Jul 2024712079.932.15$56,910
Jun 2024324078.082.63$25,298
May 2024356078.812.20$28,056
Apr 2024533084.451.66$45,012
Mar 2024577080.301.55$46,333
Feb 2024720076.091.78$54,785
Jan 2024754073.023.30$55,057
Dec 2023343071.262.61$24,442
Nov 2023738077.892.81$57,483
Oct 2023572085.443.09$48,872
Sep 2023501089.042.74$44,609
Aug 2023188080.522.67$15,138
Jul 2023833074.852.64$62,350
Jun 2023689068.962.26$47,513
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 2023162072.852.39$11,802
Feb 2023862075.112.47$64,745
Jan 2023508076.533.39$38,877
Dec 20221,069076.415.73$81,682
Nov 2022489085.005.65$41,565
Oct 2022367087.185.86$31,995
Sep 2022893084.888.16$75,798
Aug 2022174094.529.13$16,446
Jul 20223480101.587.54$35,350
Jun 20221800115.097.98$20,716
May 20227060109.378.43$77,215
Apr 20223550104.226.84$36,998
Mar 20225350108.885.08$58,251
Feb 2022538091.054.86$48,985
Jan 2022680081.844.54$55,651
Dec 2021348071.323.90$24,819
Nov 2021177077.435.24$13,705
Oct 2021178079.795.71$14,203
Sep 2021529069.865.35$36,956
Aug 2021531066.024.22$35,057
Jul 2021346070.783.98$24,490
Jun 2021355069.493.38$24,669
May 2021164063.483.02$10,411
Apr 2021178060.362.76$10,744
Mar 2021345061.302.72$21,149
Feb 2021530057.805.55$30,634
Jan 2021356050.412.81$17,946
Dec 2020357044.642.68$15,936
Nov 2020357038.772.71$13,841
Oct 2020180036.972.48$6,655
Sep 2020337037.091.99$12,499
Aug 2020175039.982.39$6,997
Jul 20200038.371.83$0
Jun 2020175034.901.69$6,108
May 20200016.921.81$0
Apr 2020542014.751.80$7,995
Mar 20200030.341.86$0
Feb 2020364049.881.98$18,156
Jan 2020742057.252.09$42,480
Dec 2019747059.012.30$44,080
Nov 2019709055.302.75$39,208
Oct 2019720053.472.42$38,498
Sep 20190055.052.66$0
Aug 2019730053.112.30$38,770
Jul 2019347056.272.46$19,526
Jun 2019714052.782.49$37,685
May 2019665058.482.74$38,889
Apr 2019703062.632.75$44,029
Mar 2019740056.803.06$42,032
Feb 2019341050.852.79$17,340
Jan 2019725046.033.23$33,372
Dec 20181,107046.594.19$51,575
Nov 2018724052.934.24$38,321
Oct 2018492061.443.40$30,228
Sep 2018547059.543.11$32,568
Aug 2018711059.403.07$42,233
Jul 2018695065.142.93$45,272
Jun 20181,033060.183.08$62,166
May 20181,009065.382.90$65,968
Apr 20181,040063.842.90$66,394
Mar 2018811061.222.79$49,649
Feb 2018862061.782.77$53,254
Jan 20181,021062.874.01$64,190
Dec 20171,026057.272.92$58,759
Nov 20171,022055.423.12$56,639
Oct 20171,197049.292.98$59,000
Sep 2017855047.523.09$40,630
Aug 20171,016045.373.00$46,096
Jul 20171,037043.873.09$45,493
Jun 20171,023042.493.09$43,467
May 20171,037045.373.26$47,049
Apr 20171,069047.933.21$51,237
Mar 2017881046.772.98$41,204
Feb 2017877050.452.95$44,245
Jan 20171,073049.413.42$53,017
Dec 2016892048.763.72$43,494
Nov 20161,045042.492.64$44,402
Oct 2016880046.193.09$40,647
Sep 20161,066041.553.10$44,292
Aug 20161,024041.442.92$42,435
Jul 20161,057041.622.92$43,992
Jun 20161,393045.352.69$63,173
May 20161,366042.521.99$58,082
Apr 20161,521036.561.99$55,608
Mar 20161,511033.011.79$49,878
Feb 20161,182026.472.06$31,288
Jan 20161,727027.352.36$47,233
Dec 20151,551032.362.00$50,190
Nov 20151,320038.792.17$51,203
Oct 20151,655043.552.43$72,075
Sep 20151,506042.992.76$64,743
Aug 20151,832040.162.87$73,573
Jul 20151,301048.152.95$62,643
Jun 20151,494056.152.88$83,888
May 20151,170055.212.96$64,596
Apr 20151,529049.822.71$76,175
Mar 20151,185042.892.93$50,825
Feb 20151,367044.662.98$61,050
Jan 20151,194043.433.10$51,855
Dec 20141,536054.693.59$84,004
Nov 20141,514070.464.25$106,676
Oct 20141,368078.303.90$107,114
Sep 20141,020086.164.05$87,883
Aug 2014985089.394.04$88,049
Jul 20141,185096.564.18$114,424
Jun 20141,526098.164.74$149,792
May 2014843094.734.73$79,857
Apr 20141,336095.944.81$128,176
Mar 20141,728095.895.06$165,698
Feb 20141,234097.406.19$120,192
Jan 20141,754090.404.86$158,562
Dec 20131,558091.824.35$143,056
Nov 20131,394088.853.74$123,857
Oct 20131,252097.423.78$121,970
Sep 20131,7780104.113.72$185,108
Aug 20131,4300104.253.52$149,078
Jul 20131,2570102.523.72$128,868
Jun 20131,400094.403.93$132,160
May 20131,422094.834.15$134,848
Apr 20131,363093.964.28$128,067
Mar 2013880093.623.91$82,386
Feb 20131,048091.233.42$95,609
Jan 20131,209091.603.42$110,744
Dec 20121,752086.773.42$152,021
Nov 20121,537086.953.62$133,642
Oct 20121,788089.383.40$159,811
Sep 20121,601094.672.92$151,567
Aug 20121,571092.662.91$145,569
Jul 20121,388085.133.02$118,160
Jun 20121,222079.822.52$97,540
May 20121,420091.612.49$130,086
Apr 20121,8270101.652.00$185,715
Mar 20121,3620105.052.22$143,078
Feb 20121,5410101.102.57$155,795
Jan 20121,878098.092.73$184,213
Dec 20111,070096.873.24$103,651
Nov 20111,518095.723.31$145,303
Oct 20111,695084.983.65$144,041
Sep 20111,688083.623.99$141,151
Aug 20112,105083.404.15$175,557
Jul 20111,766094.144.52$166,251
Jun 20111,938092.904.64$180,040
May 20111,991098.134.40$195,377
Apr 20111,6250105.964.33$172,185
Mar 20111,987096.364.06$191,467
Feb 20111,769085.644.18$151,497
Jan 20111,438086.504.59$124,387
Dec 20102,073885.734.35$177,753
Nov 20102,145980.843.80$173,436
Oct 20102,324978.103.51$181,536
Sep 20102,114972.633.98$153,576
Aug 20102,4621173.684.42$181,449
Jul 20101,938872.554.74$140,640
Jun 20101,215670.364.91$85,517
May 20102,060871.124.24$146,541
Apr 20102,060881.694.12$168,314
Mar 20101,874878.394.39$146,938
Feb 20101,737773.585.44$127,847
Jan 20101,897874.365.96$141,109
Dec 20092,077871.445.48$148,425
Nov 20092,047974.593.75$152,719
Oct 20092,3911072.544.11$173,484
Sep 20091,899865.543.06$124,485
Aug 20092,227867.423.22$150,170
Jul 20091,912861.133.46$116,908
Jun 20091,893866.163.90$125,272
May 20091,909854.743.93$104,530
Apr 20091,936846.773.59$90,575
Mar 20091,947942.144.06$82,083
Feb 20091,911832.814.63$62,737
Jan 20092,401935.865.37$86,148
Dec 20082,0981037.105.98$77,896
Nov 20082,251955.496.86$124,970
Oct 20082,6051075.246.92$196,069
Sep 20081,7368101.767.88$176,718
Aug 20081,8468114.228.48$210,918
Jul 20082,1819131.0811.39$285,988
Jun 20082,0599131.3313.03$270,526
May 20082,34410123.1711.57$288,826
Apr 20081,9948110.3110.45$220,042
Mar 20082,39010101.909.66$243,638
Feb 20081,671792.538.77$154,679
Jan 20082,060890.388.21$186,248
Dec 20071,900888.337.30$167,885
Nov 20071,760791.677.29$161,390
Oct 20071,916882.856.92$158,796
Sep 20071,929975.846.24$146,352
Aug 20072,136869.066.39$147,563
Jul 20071,722870.906.39$122,141
Jun 20072,039862.007.55$126,478
May 20071,931958.747.85$113,498
Apr 20072,2991059.617.81$137,121
Mar 20072,119956.927.30$120,679
Feb 20072,133855.108.22$117,594
Jan 20071,774950.306.73$89,293
Dec 20061,591756.656.92$90,179
Nov 20061,596754.207.62$86,557
Oct 20061,765854.906.01$96,947
Sep 20062,085860.085.04$125,307
Aug 20061,738768.717.34$119,469
Jul 20061,581769.376.34$109,718
Jun 20061,693066.286.38$112,212
May 20061,683066.016.42$111,095
Apr 20061,570064.397.36$101,092
Mar 20062,081056.707.08$117,993
Feb 20061,782057.597.75$102,625
Jan 20061,948060.598.93$118,029
Dec 20051,753054.9413.42$96,310
Nov 20052,092054.6910.59$114,411
Oct 20052,445058.3413.80$142,641
Sep 20051,761061.4512.08$108,213
Aug 20052,076061.519.80$127,695
Jul 20052,116055.697.84$117,840
Jun 20052,274052.337.38$118,998
May 20052,299045.226.65$103,961
Apr 20051,922049.207.36$94,562
Mar 20052,127050.377.15$107,137
Feb 20052,112045.226.31$95,505
Jan 20052,098043.166.32$90,550
Dec 20042,277039.866.75$90,761
Nov 20042,307045.286.33$104,461
Oct 20042,656049.706.52$132,003
Sep 20041,785043.245.28$77,183
Aug 20042,483042.375.55$105,205
Jul 20041,974038.286.08$75,565
Jun 20042,147036.106.43$77,507
May 20042,110037.486.49$79,083
Apr 20042,075034.475.86$71,525
Mar 20042,435034.365.53$83,667
Feb 20042,106032.455.51$68,340
Jan 20042,614032.036.30$83,726
Dec 20032,300030.266.30$69,598
Nov 20032,166028.804.60$62,381
Oct 20032,315028.174.76$65,214
Sep 20032,383026.314.75$62,697
Aug 20032,175029.765.13$64,728
Jul 20032,481029.415.17$72,966
Jun 20032,312028.565.98$66,031
May 20032,102026.595.97$55,892
Apr 20032,506026.675.41$66,835
Mar 20032,309031.146.10$71,902
Feb 20031,985033.487.93$66,458
Jan 20032,166030.315.58$65,651
Dec 20022,013026.914.85$54,170
Nov 20021,996024.664.14$49,221
Oct 20022,158026.464.23$57,101
Sep 20022,291027.443.64$62,865
Aug 20021,946025.963.16$50,518
Jul 20022,111024.583.06$51,888
Jun 20022,109023.733.34$50,047
May 20022,285024.663.58$56,348
Apr 20022,457023.653.51$58,108
Mar 20022,270022.003.10$49,940
Feb 20022,082018.222.38$37,934
Jan 20022,619017.172.38$44,968
Dec 20012,440016.932.36$41,309
Nov 20012,435018.072.41$44,000
Oct 20012,442019.782.53$48,303
Sep 20012,483024.262.25$60,238
Aug 20012,639024.873.05$65,632
Jul 20012,626023.933.20$62,840
Jun 20012,267024.563.82$55,678
May 20012,276025.524.31$58,084
Apr 20012,812024.685.34$69,400
Mar 20012,486024.545.38$61,006
Feb 20012,582027.755.77$71,651
Jan 20012,616027.478.40$71,862
Dec 20002,377026.889.12$63,894
Nov 20002,307032.215.66$74,308
Oct 20002,620031.235.15$81,823
Sep 20002,69428631.875.19$87,341
Aug 20002,50029629.644.54$75,444
Jul 20002,69230528.534.09$78,050
Jun 20002,70230029.304.40$80,488
May 20002,68630327.263.68$74,335
Apr 20002,60330024.513.12$64,734
Mar 20003,26931028.422.86$93,792
Feb 20002,90929027.622.73$81,137
Jan 20003,04931025.272.48$77,817
Dec 19992,97531024.282.42$72,984
Nov 19993,00030023.192.43$70,300
Oct 19992,99031020.982.80$63,599
Sep 19992,93130021.752.62$64,535
Aug 19993,28131019.262.88$64,084
Jul 19993,07031017.892.37$55,658
Jun 19993,00630015.942.36$48,624
May 19993,35031015.792.32$53,616
Apr 19992,9541015.102.21$44,627
Mar 19993,2531012.471.84$40,583
Feb 19992,721109.981.82$27,174
Jan 19993,2831010.381.90$34,097
Dec 19983,070109.201.77$28,262
Nov 19983,3261010.892.19$36,242
Oct 19982,885712.421.97$35,845
Sep 19983,0551012.592.08$38,483
Aug 19983,4651011.301.91$39,174
Jul 19983,2591011.742.24$38,283
Jun 19983,1441011.242.24$35,361
May 19983,2031012.622.21$40,444
Apr 19983,3581013.042.51$43,813
Mar 19983,2471012.802.31$41,585
Feb 19983,0661013.952.30$42,794
Jan 19983,5391014.702.15$52,045
Dec 19973,5991016.322.41$58,760
Nov 19973,4421018.193.09$62,641
Oct 19973,464919.253.15$66,710
Sep 19973,4621017.742.95$61,445
Aug 19973,5241017.862.55$62,964
Jul 19973,1011017.582.25$54,538
Jun 19972,8091017.242.26$48,450
May 19973,302918.972.31$62,660
Apr 19973,1031017.882.08$55,502
Mar 19972,7351018.951.94$51,848
Feb 19972,9131020.492.21$59,709
Jan 19973,5041023.483.54$82,309
Dec 19963,0161023.32—$70,333
Nov 19963,1511021.97—$69,227
Oct 19963,3361023.31—$77,762
Sep 19963,2571022.22—$72,371
Aug 19963,1281020.26—$63,373
Jul 19963,4041019.55—$66,548
Jun 19962,6741018.73—$50,084
May 19963,2721019.43—$63,575
Apr 19963,1791021.51—$68,380
Mar 19963,3421019.38—$64,768
Feb 19963,268916.98—$55,491
Jan 19963,5611017.07—$60,786
Dec 19952,617917.19—$44,986
Nov 19953,4401016.00—$55,040
Oct 19953,2721015.43—$50,487
Sep 19953,22954316.18—$52,245
Aug 19953,19359215.92—$50,833
Jul 19953,38959215.24—$51,648
Jun 19953,46054316.41—$56,779
May 19953,15259217.56—$55,349
Apr 19953,40159217.73—$60,300
Mar 19953,47759216.44—$57,162
Feb 19952,9685616.58—$49,209
Jan 19953,5046215.92—$55,784
Dec 19943,4566215.03—$51,944
Nov 19943,2356015.90—$51,437
Oct 19943,3316215.58—$51,897
Sep 19943,4086015.29—$52,108
Aug 19943,4416216.13—$55,503
Jul 19943,6546217.56—$64,164
Jun 19943,1986217.09—$54,654
May 19943,3996015.88—$53,976
Apr 19943,0556014.14—$43,198
Mar 19943,4416212.46—$42,875
Feb 19943,1135612.50—$38,913
Jan 19943,5905012.66—$45,449
Dec 19933,6255012.33—$44,696
Nov 19933,1924814.49—$46,252
Oct 19933,21549915.85—$50,958
Sep 19932,90548315.03—$43,662
Aug 19933,28249915.66—$51,396
Jul 19933,27649915.46—$50,647
Jun 19933,2194116.79—$54,047
May 19933,1982517.68—$56,541
Apr 19933,0512518.05—$55,071
Mar 19933,37549618.14—$61,223
Feb 19933,06644417.90—$54,881
Jan 19933,47947916.93—$58,899

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                  357 bbl  × $106.41 =    $37,988
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $37,988

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. 8A/O/60301 is the state's own key, not one this site invented.