WELDER, J. F., HEIRS

Operated by CHANDLER OIL & GAS, LLC (P-5 144355) in the SEVEN SISTERS field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 3600District 04Field 82380001OilCasinghead gasSaveExport
Value, all time
$723 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 48 leases and 339 wells, and the rule below applies to all of them.

Discovered
1935-05-13
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 0 acres. The field rule took effect on 1994-10-25.

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
OilDisposition14,524 bbl$723,014
Casinghead gasProduction112 Mcf$368
Total$723,382

16 Mcf of this lease's gas, across 16 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 27.9940, -98.5617. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

27.99421, -98.56257 · 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
33.3%
2 of 6 wells
With a plug date
33.3%
2 of 6 wells
Median depth
2,357 ft
4 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
233.3%
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.
466.7%

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

Between 1,443 and 2,615 ft, median 2,357 ft, over the 4 wells that filed a depth.

Completions filed
Aug 1947 – Feb 1976
3 of 6 wells; 3 filed none
Plug dates filed
Jul 1994 – Aug 1994
2 of 6 wells; 4 filed none

6 wells

42-1310216462,112 ftAug 1994Yes
42-131021635
42-1310216572,602 ft1984Jul 1994Yes
42-1313173742,615 ftFeb 1976
42-1318264711,443 ftMay 1956
42-131020973Aug 1947

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 2025168062.363.54$10,476
Mar 2025167067.704.27$11,306
Feb 2025299070.884.34$21,193
Jan 2025342074.324.28$25,417
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 202460084.451.66$5,067
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 202314068.962.26$965
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 202241091.054.86$3,733
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 202139069.865.35$2,725
Aug 20210066.024.22$0
Jul 202138070.783.98$2,690
Jun 202137069.493.38$2,571
May 202137063.483.02$2,349
Apr 20210060.362.76$0
Mar 202142061.302.72$2,575
Feb 202138057.805.55$2,196
Jan 202134050.412.81$1,714
Dec 20200044.642.68$0
Nov 202055038.772.71$2,132
Oct 202039036.972.48$1,442
Sep 202038037.091.99$1,409
Aug 20200039.982.39$0
Jul 202082038.371.83$3,146
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 202027049.881.98$1,347
Jan 202040057.252.09$2,290
Dec 20190059.012.30$0
Nov 201966055.302.75$3,650
Oct 201939053.472.42$2,085
Sep 201936055.052.66$1,982
Aug 201940053.112.30$2,124
Jul 201930056.272.46$1,688
Jun 201937052.782.49$1,953
May 201936058.482.74$2,105
Apr 201924062.632.75$1,503
Mar 201938056.803.06$2,158
Feb 201940050.852.79$2,034
Jan 201940046.033.23$1,841
Dec 201841046.594.19$1,910
Nov 20180052.934.24$0
Oct 201838061.443.40$2,335
Sep 201834059.543.11$2,024
Aug 20180059.403.07$0
Jul 201838065.142.93$2,475
Jun 201827060.183.08$1,625
May 201834065.382.90$2,223
Apr 201838063.842.90$2,426
Mar 201836061.222.79$2,204
Feb 201837061.782.77$2,286
Jan 201861062.874.01$3,835
Dec 20170057.272.92$0
Nov 201738055.423.12$2,106
Oct 201738049.292.98$1,873
Sep 201779047.523.09$3,754
Aug 20170045.373.00$0
Jul 201737043.873.09$1,623
Jun 201738042.493.09$1,615
May 201739045.373.26$1,769
Apr 201736047.933.21$1,725
Mar 20170046.772.98$0
Feb 201737050.452.95$1,867
Jan 201738049.413.42$1,878
Dec 201634048.763.72$1,658
Nov 201640042.492.64$1,700
Oct 201637046.193.09$1,709
Sep 201639041.553.10$1,620
Aug 201637041.442.92$1,533
Jul 201641041.622.92$1,706
Jun 201641045.352.69$1,859
May 201638042.521.99$1,616
Apr 20160036.561.99$0
Mar 201640033.011.79$1,320
Feb 201646026.472.06$1,218
Jan 201640027.352.36$1,094
Dec 201537032.362.00$1,197
Nov 201541038.792.17$1,590
Oct 201539043.552.43$1,698
Sep 20150042.992.76$0
Aug 201538040.162.87$1,526
Jul 201538048.152.95$1,830
Jun 201577056.152.88$4,324
May 20150055.212.96$0
Apr 201537049.822.71$1,843
Mar 201539042.892.93$1,673
Feb 201539044.662.98$1,742
Jan 201540043.433.10$1,737
Dec 201439054.693.59$2,133
Nov 201437070.464.25$2,607
Oct 201441078.303.90$3,210
Sep 201438086.164.05$3,274
Aug 201437089.394.04$3,307
Jul 201439096.564.18$3,766
Jun 201437098.164.74$3,632
May 201441094.734.73$3,884
Apr 201439095.944.81$3,742
Mar 201436095.895.06$3,452
Feb 201436097.406.19$3,506
Jan 201438090.404.86$3,435
Dec 201338091.824.35$3,489
Nov 201342088.853.74$3,732
Oct 201337097.423.78$3,605
Sep 2013330104.113.72$3,436
Aug 2013370104.253.52$3,857
Jul 2013710102.523.72$7,279
Jun 201336094.403.93$3,398
May 201375094.834.15$7,112
Apr 201339093.964.28$3,664
Mar 201338093.623.91$3,558
Feb 201340091.233.42$3,649
Jan 201339091.603.42$3,572
Dec 201238086.773.42$3,297
Nov 201237086.953.62$3,217
Oct 201238089.383.40$3,396
Sep 201240094.672.92$3,787
Aug 201237092.662.91$3,428
Jul 201236085.133.02$3,065
Jun 201280079.822.52$6,386
May 20120091.612.49$0
Apr 2012390101.652.00$3,964
Mar 2012400105.052.22$4,202
Feb 2012390101.102.57$3,943
Jan 201238098.092.73$3,727
Dec 201140096.873.24$3,875
Nov 201140095.723.31$3,829
Oct 201140084.983.65$3,399
Sep 201139083.623.99$3,261
Aug 201140083.404.15$3,336
Jul 201139094.144.52$3,671
Jun 201139092.904.64$3,623
May 201138098.134.40$3,729
Apr 2011410105.964.33$4,344
Mar 201135096.364.06$3,373
Feb 201137085.644.18$3,169
Jan 201179086.504.59$6,834
Dec 20100085.734.35$0
Nov 201039080.843.80$3,153
Oct 201039078.103.51$3,046
Sep 201039072.633.98$2,833
Aug 201041073.684.42$3,021
Jul 201038072.554.74$2,757
Jun 201077070.364.91$5,418
May 201040071.124.24$2,845
Apr 201040081.694.12$3,268
Mar 201039078.394.39$3,057
Feb 201038073.585.44$2,796
Jan 201038074.365.96$2,826
Dec 200939071.445.48$2,786
Nov 200940074.593.75$2,984
Oct 200938072.544.11$2,757
Sep 200940065.543.06$2,622
Aug 200940067.423.22$2,697
Jul 200939061.133.46$2,384
Jun 200938066.163.90$2,514
May 200938054.743.93$2,080
Apr 200977046.773.59$3,601
Mar 20090042.144.06$0
Feb 200977032.814.63$2,526
Jan 200941035.865.37$1,470
Dec 200841037.105.98$1,521
Nov 200838055.496.86$2,109
Oct 200838075.246.92$2,859
Sep 2008790101.767.88$8,039
Aug 200800114.228.48$0
Jul 2008820131.0811.39$10,749
Jun 200800131.3313.03$0
May 2008390123.1711.57$4,804
Apr 2008410110.3110.45$4,523
Mar 2008390101.909.66$3,974
Feb 20080092.538.77$0
Jan 200840090.388.21$3,615
Dec 200740088.337.30$3,533
Nov 20070091.677.29$0
Oct 200739082.856.92$3,231
Sep 200740075.846.24$3,034
Aug 200740069.066.39$2,762
Jul 200739070.906.39$2,765
Jun 200780062.007.55$4,960
May 200739058.747.85$2,291
Apr 200740059.617.81$2,384
Mar 200740056.927.30$2,277
Feb 200741055.108.22$2,259
Jan 200779050.306.73$3,974
Dec 20060056.656.92$0
Nov 200680054.207.62$4,336
Oct 200642054.906.01$2,306
Sep 200641060.085.04$2,463
Aug 200640068.717.34$2,748
Jul 200679069.376.34$5,480
Jun 200642066.286.38$2,784
May 200642066.016.42$2,772
Apr 200642064.397.36$2,704
Mar 200640056.707.08$2,268
Feb 200639057.597.75$2,246
Jan 200643060.598.93$2,605
Dec 200539054.9413.42$2,143
Nov 200541054.6910.59$2,242
Oct 200579058.3413.80$4,609
Sep 200541061.4512.08$2,519
Aug 200542061.519.80$2,583
Jul 200539055.697.84$2,172
Jun 200541052.337.38$2,146
May 200580045.226.65$3,618
Apr 200540049.207.36$1,968
Mar 200584050.377.15$4,231
Feb 20050045.226.31$0
Jan 200539043.166.32$1,683
Dec 200439139.866.75$1,561
Nov 200482145.286.33$3,719
Oct 200440149.706.52$1,995
Sep 200434143.245.28$1,475
Aug 200482142.375.55$3,480
Jul 200477138.286.08$2,954
Jun 200438136.106.43$1,378
May 200438137.486.49$1,431
Apr 200439134.475.86$1,350
Mar 200442134.365.53$1,449
Feb 200442132.455.51$1,368
Jan 200438132.036.30$1,223
Dec 200381130.266.30$2,457
Nov 200383128.804.60$2,395
Oct 200343128.174.76$1,216
Sep 200342126.314.75$1,110
Aug 200345129.765.13$1,344
Jul 200379129.415.17$2,329
Jun 200341128.565.98$1,177
May 200378126.595.97$2,080
Apr 20030126.675.41$5
Mar 200341131.146.10$1,283
Feb 20030133.487.93$8
Jan 200333130.315.58$1,006
Dec 200240126.914.85$1,081
Nov 200278124.664.14$1,928
Oct 200285126.464.23$2,253
Sep 20020127.443.64$4
Aug 200239125.963.16$1,016
Jul 200241124.583.06$1,011
Jun 200240123.733.34$953
May 200243124.663.58$1,064
Apr 200242123.653.51$997
Mar 200242122.003.10$927
Feb 200238118.222.38$695
Jan 200241117.172.38$706
Dec 200144116.932.36$747
Nov 200143118.072.41$779
Oct 200177119.782.53$1,526
Sep 20010124.262.25$2
Aug 200185124.873.05$2,117
Jul 200139123.933.20$936
Jun 200182124.563.82$2,018
May 200141125.524.31$1,051
Apr 200140124.685.34$993
Mar 200179124.545.38$1,944
Feb 200179127.755.77$2,198
Jan 20010127.478.40$8
Dec 200046126.889.12$1,246
Nov 200043132.215.66$1,391
Oct 200041131.235.15$1,286
Sep 200042131.875.19$1,344
Aug 200081129.644.54$2,405
Jul 200037128.534.09$1,060
Jun 200084129.304.40$2,466
May 200043127.263.68$1,176
Apr 20000124.513.12$3
Mar 200041128.422.86$1,168
Feb 200041127.622.73$1,135
Jan 200081125.272.48$2,049
Dec 199939124.282.42$949
Nov 199975123.192.43$1,742
Oct 199980120.982.80$1,681
Sep 199943121.752.62$938
Aug 199978119.262.88$1,505
Jul 199982117.892.37$1,469
Jun 199941115.942.36$656
May 19990115.792.32$2
Apr 199983115.102.21$1,256
Mar 199974112.471.84$925
Feb 19994319.981.82$431
Jan 19990110.381.90$2
Dec 19986519.201.77$600
Nov 199881110.892.19$884
Oct 199843112.421.97$536
Sep 199879112.592.08$997
Aug 199844111.301.91$499
Jul 199882111.742.24$965
Jun 199840111.242.24$452
May 199842112.622.21$532
Apr 199873113.042.51$954
Mar 199841112.802.31$527
Feb 199839113.952.30$546
Jan 199871114.702.15$1,046
Dec 199773116.322.41$1,194
Nov 199782118.193.09$1,495
Oct 199772119.253.15$1,389
Sep 199743117.742.95$766
Aug 1997106117.862.55$1,896
Jul 199737117.582.25$653
Jun 199738117.242.26$657
May 199742118.972.31$799
Apr 199735117.882.08$628
Mar 199774118.951.94$1,404
Feb 199737120.492.21$760
Jan 199741123.483.54$966
Dec 199682123.32$1,912
Nov 199638121.97$835
Oct 199672123.31$1,678
Sep 199674122.22$1,644
Aug 199645120.26$912
Jul 199677119.55$1,505
Jun 199647118.73$880
May 199681119.43$1,574
Apr 199681121.51$1,742
Mar 199650119.38$969
Feb 19960016.98$0
Jan 19960017.07$0
Dec 19950017.19$0
Nov 19950016.00$0
Oct 19950015.43$0
Sep 19950016.18$0
Aug 19950015.92$0
Jul 19950015.24$0
Jun 19950016.41$0
May 19950117.56$0
Apr 19950117.73$0
Mar 19950116.44$0
Feb 19950116.58$0
Jan 19950115.92$0
Dec 199421115.03$316
Nov 1994102015.90$1,622
Oct 1994200015.58$3,116
Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940017.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19940012.46$0
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930012.33$0
Nov 19930014.49$0
Oct 19930015.85$0
Sep 19930015.03$0
Aug 19930015.66$0
Jul 19930015.46$0
Jun 19930016.79$0
May 19930017.68$0
Apr 19930018.05$0
Mar 19930018.14$0
Feb 19930017.90$0
Jan 19930016.93$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.

Apr 2025 — as filed, then multipliedworked
Oil                  168 bbl  × $ 62.36 =    $10,476
Casinghead gas         0 Mcf  × $  3.54 =         $0

────────────────────────────────────────────────────
Month total                                  $10,476

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/3600 is the state's own key, not one this site invented.