DUVAL RANCH SEC. 79

Operated by KILLAM OIL CO., LTD. (P-5 460054) in the D C R-79 field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 623District 04Field 22548001OilCasinghead gasSaveExport
Value, all time
$833 k
Jan 1993 – May 2026
Value, last 12 filed months
$52 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 8 leases and 37 wells, and the rule below applies to all of them.

Discovered
1948-08-18
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 10 acres.

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
OilDisposition14,759 bbl$833,100
Casinghead gasProduction7 Mcf$0
Total$833,100

7 Mcf of this lease's gas, across 7 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 27.8851, -98.7100. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

27.88542, -98.71030 · 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
1,522 ft
3 wells filed one
Completion to plug
no well filed both dates

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 1,521 and 1,535 ft, median 1,522 ft, over the 3 wells that filed a depth.

Plug dates filed
Mar 1949 – Mar 1984
2 of 3 wells; 1 filed none

3 wells

42-1310544321,535 ftMar 1949Yes
42-1310544871,521 ftMar 1984Yes
42-1310544981,522 ft

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 2026530106.413.05$5,640
Apr 202650098.932.87$4,947
Mar 202649089.753.15$4,398
Feb 2026105063.503.75$6,668
Jan 202647059.138.00$2,779
Dec 202552056.664.41$2,946
Nov 20250058.593.93$0
Oct 2025125059.383.30$7,423
Sep 202565062.743.08$4,078
Aug 20250063.933.01$0
Jul 2025127066.743.32$8,476
Jun 202568066.483.13$4,521
May 202563060.553.23$3,815
Apr 202563062.363.54$3,929
Mar 2025115067.704.27$7,786
Feb 20250070.884.34$0
Jan 202565074.324.28$4,831
Dec 20240068.993.12$0
Nov 202461069.052.20$4,212
Oct 202476071.372.28$5,424
Sep 202468069.612.36$4,733
Aug 202469075.632.06$5,218
Jul 20240079.932.15$0
Jun 202469078.082.63$5,388
May 202467078.812.20$5,280
Apr 202463084.451.66$5,320
Mar 202465080.301.55$5,220
Feb 202458076.091.78$4,413
Jan 202456073.023.30$4,089
Dec 202349071.262.61$3,492
Nov 20230077.892.81$0
Oct 202343085.443.09$3,674
Sep 202344089.042.74$3,918
Aug 20230080.522.67$0
Jul 202348074.852.64$3,593
Jun 202349068.962.26$3,379
May 20230070.622.23$0
Apr 202355078.122.24$4,297
Mar 202362072.852.39$4,517
Feb 202370075.112.47$5,258
Jan 202354076.533.39$4,133
Dec 2022108076.415.73$8,252
Nov 20220085.005.65$0
Oct 202250087.185.86$4,359
Sep 202248084.888.16$4,074
Aug 20220094.529.13$0
Jul 2022310101.587.54$3,149
Jun 2022330115.097.98$3,798
May 202200109.378.43$0
Apr 2022620104.226.84$6,462
Mar 2022630108.885.08$6,859
Feb 202261091.054.86$5,554
Jan 202263081.844.54$5,156
Dec 202157071.323.90$4,065
Nov 20210077.435.24$0
Oct 202158079.795.71$4,628
Sep 202156069.865.35$3,912
Aug 202154066.024.22$3,565
Jul 202137070.783.98$2,619
Jun 202132069.493.38$2,224
May 202132063.483.02$2,031
Apr 202132060.362.76$1,932
Mar 202132061.302.72$1,962
Feb 20210057.805.55$0
Jan 202130050.412.81$1,512
Dec 202029044.642.68$1,295
Nov 202040038.772.71$1,551
Oct 202040036.972.48$1,479
Sep 202040037.091.99$1,484
Aug 202037039.982.39$1,479
Jul 202037038.371.83$1,420
Jun 202039034.901.69$1,361
May 20200016.921.81$0
Apr 202078014.751.80$1,151
Mar 202041030.341.86$1,244
Feb 202041049.881.98$2,045
Jan 202080057.252.09$4,580
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 201937053.472.42$1,978
Sep 20190055.052.66$0
Aug 2019151053.112.30$8,020
Jul 201951056.272.46$2,870
Jun 20190052.782.49$0
May 201939058.482.74$2,281
Apr 201939062.632.75$2,443
Mar 2019118056.803.06$6,702
Feb 20190050.852.79$0
Jan 201991046.033.23$4,189
Dec 20180046.594.19$0
Nov 201839052.934.24$2,064
Oct 201879061.443.40$4,854
Sep 20180059.543.11$0
Aug 201840059.403.07$2,376
Jul 201839065.142.93$2,540
Jun 201877060.183.08$4,634
May 20180065.382.90$0
Apr 2018160063.842.90$10,214
Mar 201840061.222.79$2,449
Feb 201883061.782.77$5,128
Jan 201841062.874.01$2,578
Dec 201781057.272.92$4,639
Nov 201741055.423.12$2,272
Oct 201768049.292.98$3,352
Sep 201734047.523.09$1,616
Aug 201733045.373.00$1,497
Jul 201768043.873.09$2,983
Jun 20170042.493.09$0
May 2017120045.373.26$5,444
Apr 201741047.933.21$1,965
Mar 201782046.772.98$3,835
Feb 20170050.452.95$0
Jan 201742049.413.42$2,075
Dec 201681048.763.72$3,950
Nov 201641042.492.64$1,742
Oct 201682046.193.09$3,788
Sep 201680041.553.10$3,324
Aug 20160041.442.92$0
Jul 201642041.622.92$1,748
Jun 201640045.352.69$1,814
May 201639042.521.99$1,658
Apr 20160036.561.99$0
Mar 201641033.011.79$1,353
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 201540032.362.00$1,294
Nov 201581038.792.17$3,142
Oct 201540043.552.43$1,742
Sep 201577042.992.76$3,310
Aug 20150040.162.87$0
Jul 201540048.152.95$1,926
Jun 201578056.152.88$4,380
May 20150055.212.96$0
Apr 201539049.822.71$1,943
Mar 201579042.892.93$3,388
Feb 201540044.662.98$1,786
Jan 201578043.433.10$3,388
Dec 201429054.693.59$1,586
Nov 20140070.464.25$0
Oct 201427078.303.90$2,114
Sep 201458086.164.05$4,997
Aug 201458089.394.04$5,185
Jul 201429096.564.18$2,800
Jun 201429098.164.74$2,847
May 201457094.734.73$5,400
Apr 201428095.944.81$2,686
Mar 201427095.895.06$2,589
Feb 201427097.406.19$2,630
Jan 201427090.404.86$2,441
Dec 201370091.824.35$6,427
Nov 201336088.853.74$3,199
Oct 201371097.423.78$6,917
Sep 2013360104.113.72$3,748
Aug 2013350104.253.52$3,649
Jul 2013370102.523.72$3,793
Jun 201361094.403.93$5,758
May 201361094.834.15$5,785
Apr 201330093.964.28$2,819
Mar 201331093.623.91$2,902
Feb 201362091.233.42$5,656
Jan 201363091.603.42$5,771
Dec 201258086.773.42$5,033
Nov 201228086.953.62$2,435
Oct 201261089.383.40$5,452
Sep 201229094.672.92$2,745
Aug 201230092.662.91$2,780
Jul 201291085.133.02$7,747
Jun 20120079.822.52$0
May 201260091.612.49$5,497
Apr 2012620101.652.00$6,302
Mar 2012280105.052.22$2,941
Feb 2012640101.102.57$6,470
Jan 201263098.092.73$6,180
Dec 201163096.873.24$6,103
Nov 201130095.723.31$2,872
Oct 201198084.983.65$8,328
Sep 201133083.623.99$2,759
Aug 201133083.404.15$2,752
Jul 201194094.144.52$8,849
Jun 201156092.904.64$5,202
May 201156098.134.40$5,495
Apr 2011280105.964.33$2,967
Mar 201154096.364.06$5,203
Feb 2011108085.644.18$9,249
Jan 201153086.504.59$4,585
Dec 201020085.734.35$1,715
Nov 201057080.843.80$4,608
Oct 201041078.103.51$3,202
Sep 201038072.633.98$2,760
Aug 201019073.684.42$1,400
Jul 201057072.554.74$4,135
Jun 201019070.364.91$1,337
May 201057071.124.24$4,054
Apr 201018081.694.12$1,470
Mar 201026078.394.39$2,038
Feb 201019073.585.44$1,398
Jan 201017074.365.96$1,264
Dec 200938071.445.48$2,715
Nov 200940074.593.75$2,984
Oct 200941072.544.11$2,974
Sep 200919065.543.06$1,245
Aug 200939067.423.22$2,629
Jul 200920061.133.46$1,223
Jun 200925066.163.90$1,654
May 200927054.743.93$1,478
Apr 200953046.773.59$2,479
Mar 200927042.144.06$1,138
Feb 200951032.814.63$1,673
Jan 200952035.865.37$1,865
Dec 200820037.105.98$742
Nov 200819055.496.86$1,054
Oct 200837075.246.92$2,784
Sep 2008230101.767.88$2,340
Aug 2008220114.228.48$2,513
Jul 2008430131.0811.39$5,636
Jun 2008410131.3313.03$5,385
May 2008410123.1711.57$5,050
Apr 2008410110.3110.45$4,523
Mar 2008180101.909.66$1,834
Feb 20089092.538.77$833
Jan 200818090.388.21$1,627
Dec 200726088.337.30$2,297
Nov 200727091.677.29$2,475
Oct 200718082.856.92$1,491
Sep 200718075.846.24$1,365
Aug 200717069.066.39$1,174
Jul 200718070.906.39$1,276
Jun 200730062.007.55$1,860
May 200715058.747.85$881
Apr 200773059.617.81$4,352
Mar 200744056.927.30$2,504
Feb 200729055.108.22$1,598
Jan 200744050.306.73$2,213
Dec 200629056.656.92$1,643
Nov 200630054.207.62$1,626
Oct 200644054.906.01$2,416
Sep 200615060.085.04$901
Aug 200630068.717.34$2,061
Jul 200615069.376.34$1,041
Jun 200648066.286.38$3,181
May 200616066.016.42$1,056
Apr 200617064.397.36$1,095
Mar 200631056.707.08$1,758
Feb 200631057.597.75$1,785
Jan 200632060.598.93$1,939
Dec 200516054.9413.42$879
Nov 200516054.6910.59$875
Oct 200516058.3413.80$933
Sep 200547061.4512.08$2,888
Aug 200532061.519.80$1,968
Jul 200514055.697.84$780
Jun 200527052.337.38$1,413
May 200514045.226.65$633
Apr 200514049.207.36$689
Mar 200539050.377.15$1,964
Feb 200513045.226.31$588
Jan 200514043.166.32$604
Dec 200432039.866.75$1,276
Nov 200416045.286.33$724
Oct 200431049.706.52$1,541
Sep 200432043.245.28$1,384
Aug 200431042.375.55$1,313
Jul 200432038.286.08$1,225
Jun 200432036.106.43$1,155
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 200358030.266.30$1,755
Nov 200328028.804.60$806
Oct 200357028.174.76$1,606
Sep 200359026.314.75$1,552
Aug 200359029.765.13$1,756
Jul 200358029.415.17$1,706
Jun 200331028.565.98$885
May 200348026.595.97$1,276
Apr 200331026.675.41$827
Mar 200347031.146.10$1,464
Feb 200332033.487.93$1,071
Jan 200355030.315.58$1,667
Dec 200266026.914.85$1,776
Nov 200265024.664.14$1,603
Oct 200264026.464.23$1,693
Sep 200232027.443.64$878
Aug 200254025.963.16$1,402
Jul 2002130024.583.06$3,195
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 20010024.685.34$0
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 20010027.478.40$0
Dec 20000026.889.12$0
Nov 20000032.215.66$0
Oct 20000031.235.15$0
Sep 20000031.875.19$0
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 19970017.582.25$0
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 199664021.97$1,406
Oct 199633023.31$769
Sep 199667022.22$1,489
Aug 199664020.26$1,297
Jul 1996133019.55$2,600
Jun 199661018.73$1,143
May 199667019.43$1,302
Apr 1996101021.51$2,173
Mar 1996106019.38$2,054
Feb 1996133016.98$2,258
Jan 199658017.07$990
Dec 1995103017.19$1,771
Nov 199571016.00$1,136
Oct 199576015.43$1,173
Sep 199573016.18$1,181
Aug 199551015.92$812
Jul 199596015.24$1,463
Jun 199575016.41$1,231
May 199570017.56$1,229
Apr 1995105017.73$1,862
Mar 199598016.44$1,611
Feb 199594016.58$1,559
Jan 199593015.92$1,481
Dec 1994138015.03$2,074
Nov 1994141015.90$2,242
Oct 199466015.58$1,028
Sep 199484115.29$1,284
Aug 199484116.13$1,355
Jul 199455117.56$966
Jun 1994136117.09$2,324
May 199454115.88$858
Apr 199484114.14$1,188
Mar 199479112.46$984
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.

May 2026 — as filed, then multipliedworked
Oil                   53 bbl  × $106.41 =     $5,640
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                   $5,640

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/623 is the state's own key, not one this site invented.