DUVAL RANCH SEC. 203

Operated by KILLAM OIL CO., LTD. (P-5 460054) in the PETROX, N. (FRIO 1250) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 8921District 04Field 70945500OilCasinghead gasSaveExport
Value, all time
$5.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$110 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 7 leases and 17 wells, and the rule below applies to all of them.

Discovered
1963-04-21
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition134,606 bbl$5,920,413
Casinghead gasProduction57 Mcf$0
Total$5,920,413

57 Mcf of this lease's gas, across 21 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 (5)

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 27.9758, -98.6259. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

27.97564, -98.62523 · 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
0.0%
0 of 5 wells
With a plug date
0.0%
0 of 5 wells
Median depth
1,410 ft
5 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
5100.0%

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 1,400 and 3,800 ft, median 1,410 ft, over the 5 wells that filed a depth.

Completions filed
Jun 1977 – Oct 2024
5 of 5 wells

5 wells

42-13139473423,800 ftOct 2024
42-13135195412,308 ftAug 1981
42-13132907391,400 ftDec 1978
42-13132339381,410 ftSep 1977
42-13132098371,400 ftJun 1977

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 20261690106.413.05$17,983
Apr 2026118098.932.87$11,674
Mar 2026117089.753.15$10,501
Feb 2026116063.503.75$7,366
Jan 2026116059.138.00$6,859
Dec 2025112056.664.41$6,346
Nov 2025110058.593.93$6,445
Oct 2025179059.383.30$10,629
Sep 2025119062.743.08$7,466
Aug 2025119063.933.01$7,608
Jul 2025121066.743.32$8,076
Jun 2025133066.483.13$8,842
May 2025136060.553.23$8,235
Apr 2025205062.363.54$12,784
Mar 202572067.704.27$4,874
Feb 2025131070.884.34$9,285
Jan 2025136074.324.28$10,108
Dec 2024146068.993.12$10,073
Nov 2024248069.052.20$17,124
Oct 2024159071.372.28$11,348
Sep 202478069.612.36$5,430
Aug 2024239075.632.06$18,076
Jul 2024152079.932.15$12,149
Jun 2024148078.082.63$11,556
May 2024228078.812.20$17,969
Apr 2024159084.451.66$13,428
Mar 2024165080.301.55$13,250
Feb 202483076.091.78$6,315
Jan 2024178073.023.30$12,998
Dec 2023282071.262.61$20,095
Nov 2023187077.892.81$14,565
Oct 20230085.443.09$0
Sep 2023178089.042.74$15,849
Aug 2023355080.522.67$28,585
Jul 202393074.852.64$6,961
Jun 2023279068.962.26$19,240
May 2023285070.622.23$20,127
Apr 202394078.122.24$7,343
Mar 2023285072.852.39$20,762
Feb 202398075.112.47$7,361
Jan 2023279076.533.39$21,352
Dec 2022266076.415.73$20,325
Nov 2022181085.005.65$15,385
Oct 2022270087.185.86$23,539
Sep 2022271084.888.16$23,002
Aug 2022186094.529.13$17,581
Jul 20222750101.587.54$27,935
Jun 20221830115.097.98$21,061
May 20222680109.378.43$29,311
Apr 20221820104.226.84$18,968
Mar 20222750108.885.08$29,942
Feb 2022188091.054.86$17,117
Jan 2022296081.844.54$24,225
Dec 2021329071.323.90$23,464
Nov 2021205077.435.24$15,873
Oct 2021197079.795.71$15,719
Sep 2021297069.865.35$20,748
Aug 2021276066.024.22$18,222
Jul 2021171070.783.98$12,103
Jun 2021160069.493.38$11,118
May 2021171063.483.02$10,855
Apr 2021265060.362.76$15,995
Mar 2021282061.302.72$17,287
Feb 202188057.805.55$5,086
Jan 2021345050.412.81$17,391
Dec 2020152044.642.68$6,785
Nov 2020142038.772.71$5,505
Oct 2020184036.972.48$6,802
Sep 2020122037.091.99$4,525
Aug 2020183039.982.39$7,316
Jul 202061038.371.83$2,341
Jun 2020168034.901.69$5,863
May 20200016.921.81$0
Apr 2020161014.751.80$2,375
Mar 2020105030.341.86$3,186
Feb 2020145049.881.98$7,233
Jan 2020170057.252.09$9,733
Dec 201988059.012.30$5,193
Nov 2019292055.302.75$16,148
Oct 2019415053.472.42$22,190
Sep 2019292055.052.66$16,075
Aug 2019188053.112.30$9,985
Jul 2019297056.272.46$16,712
Jun 2019289052.782.49$15,253
May 2019361058.482.74$21,111
Apr 201979062.632.75$4,948
Mar 2019335056.803.06$19,028
Feb 201989050.852.79$4,526
Jan 2019222046.033.23$10,219
Dec 2018198046.594.19$9,225
Nov 2018133052.934.24$7,040
Oct 2018129061.443.40$7,926
Sep 2018130059.543.11$7,740
Aug 2018266059.403.07$15,800
Jul 2018197065.142.93$12,833
Jun 2018129060.183.08$7,763
May 2018183065.382.90$11,965
Apr 2018129063.842.90$8,235
Mar 201865061.222.79$3,979
Feb 2018262061.782.77$16,186
Jan 2018293062.874.01$18,421
Dec 2017419057.272.92$23,996
Nov 2017199055.423.12$11,029
Oct 2017296049.292.98$14,590
Sep 2017293047.523.09$13,923
Aug 2017296045.373.00$13,430
Jul 2017276043.873.09$12,108
Jun 2017292042.493.09$12,407
May 2017293045.373.26$13,293
Apr 2017291047.933.21$13,948
Mar 2017197046.772.98$9,214
Feb 2017294050.452.95$14,832
Jan 2017387049.413.42$19,122
Dec 2016289048.763.72$14,092
Nov 2016295042.492.64$12,535
Oct 2016289046.193.09$13,349
Sep 2016292041.553.10$12,133
Aug 2016193041.442.92$7,998
Jul 2016294041.622.92$12,236
Jun 2016336045.352.69$15,238
May 2016165042.521.99$7,016
Apr 2016320036.561.99$11,699
Mar 2016420033.011.79$13,864
Feb 2016170026.472.06$4,500
Jan 2016251027.352.36$6,865
Dec 2015184032.362.00$5,954
Nov 2015183038.792.17$7,099
Oct 2015269043.552.43$11,715
Sep 2015165042.992.76$7,093
Aug 2015260040.162.87$10,442
Jul 2015360048.152.95$17,334
Jun 2015145056.152.88$8,142
May 201579055.212.96$4,362
Apr 2015158049.822.71$7,872
Mar 2015316042.892.93$13,553
Feb 2015312044.662.98$13,934
Jan 2015227043.433.10$9,859
Dec 2014311054.693.59$17,009
Nov 2014128070.464.25$9,019
Oct 2014249078.303.90$19,497
Sep 2014189086.164.05$16,284
Aug 2014253089.394.04$22,616
Jul 2014186096.564.18$17,960
Jun 2014253098.164.74$24,834
May 2014237094.734.73$22,451
Apr 2014236095.944.81$22,642
Mar 2014237095.895.06$22,726
Feb 2014242097.406.19$23,571
Jan 2014237090.404.86$21,425
Dec 2013351091.824.35$32,229
Nov 201370088.853.74$6,220
Oct 20130097.423.78$0
Sep 20133530104.113.72$36,751
Aug 20133400104.253.52$35,445
Jul 20134120102.523.72$42,238
Jun 2013234094.403.93$22,090
May 2013361094.834.15$34,234
Apr 2013232093.964.28$21,799
Mar 2013184093.623.91$17,226
Feb 2013180091.233.42$16,421
Jan 2013241091.603.42$22,076
Dec 2012193086.773.42$16,747
Nov 2012204086.953.62$17,738
Oct 2012205089.383.40$18,323
Sep 2012197094.672.92$18,650
Aug 2012186092.662.91$17,235
Jul 2012203085.133.02$17,281
Jun 2012275079.822.52$21,951
May 2012204091.612.49$18,688
Apr 20123090101.652.00$31,410
Mar 20121970105.052.22$20,695
Feb 20123340101.102.57$33,767
Jan 2012281098.092.73$27,563
Dec 2011344096.873.24$33,323
Nov 2011229095.723.31$21,920
Oct 2011360084.983.65$30,593
Sep 2011222083.623.99$18,564
Aug 2011344083.404.15$28,690
Jul 2011294094.144.52$27,677
Jun 2011234092.904.64$21,739
May 2011301098.134.40$29,537
Apr 20113030105.964.33$32,106
Mar 2011256096.364.06$24,668
Feb 2011250085.644.18$21,410
Jan 2011418086.504.59$36,157
Dec 2010241085.734.35$20,661
Nov 2010239080.843.80$19,321
Oct 2010303078.103.51$23,664
Sep 2010240072.633.98$17,431
Aug 2010362073.684.42$26,672
Jul 2010297072.554.74$21,547
Jun 2010334070.364.91$23,500
May 2010475071.124.24$33,782
Apr 2010273081.694.12$22,301
Mar 2010412078.394.39$32,297
Feb 2010210073.585.44$15,452
Jan 2010442074.365.96$32,867
Dec 2009300071.445.48$21,432
Nov 2009374074.593.75$27,897
Oct 2009366072.544.11$26,550
Sep 2009291065.543.06$19,072
Aug 2009285067.423.22$19,215
Jul 2009295061.133.46$18,033
Jun 2009113066.163.90$7,476
May 2009343054.743.93$18,776
Apr 2009291046.773.59$13,610
Mar 2009337042.144.06$14,201
Feb 2009282032.814.63$9,252
Jan 2009419035.865.37$15,025
Dec 2008349037.105.98$12,948
Nov 2008435055.496.86$24,138
Oct 2008452075.246.92$34,008
Sep 20083920101.767.88$39,890
Aug 20085520114.228.48$63,049
Jul 20083050131.0811.39$39,979
Jun 20084200131.3313.03$55,159
May 20084910123.1711.57$60,476
Apr 20083460110.3110.45$38,167
Mar 20082900101.909.66$29,551
Feb 2008352092.538.77$32,571
Jan 2008229090.388.21$20,697
Dec 2007350088.337.30$30,916
Nov 2007351091.677.29$32,176
Oct 2007294082.856.92$24,358
Sep 2007406075.846.24$30,791
Aug 2007348069.066.39$24,033
Jul 2007342070.906.39$24,248
Jun 2007353062.007.55$21,886
May 2007516058.747.85$30,310
Apr 20070059.617.81$0
Mar 2007337056.927.30$19,182
Feb 2007336055.108.22$18,514
Jan 2007397050.306.73$19,969
Dec 2006170056.656.92$9,631
Nov 2006384054.207.62$20,813
Oct 2006369054.906.01$20,258
Sep 2006435060.085.04$26,135
Aug 2006279068.717.34$19,170
Jul 2006331069.376.34$22,961
Jun 2006235066.286.38$15,576
May 2006372066.016.42$24,556
Apr 2006281064.397.36$18,094
Mar 2006281056.707.08$15,933
Feb 2006188057.597.75$10,827
Jan 2006282060.598.93$17,086
Dec 2005341054.9413.42$18,735
Nov 2005413054.6910.59$22,587
Oct 2005204058.3413.80$11,901
Sep 2005339061.4512.08$20,832
Aug 2005400061.519.80$24,604
Jul 2005269055.697.84$14,981
Jun 2005308052.337.38$16,118
May 2005307045.226.65$13,883
Apr 2005314049.207.36$15,449
Mar 2005368050.377.15$18,536
Feb 2005249045.226.31$11,260
Jan 2005308043.166.32$13,293
Dec 2004454039.866.75$18,096
Nov 2004230045.286.33$10,414
Oct 2004297049.706.52$14,761
Sep 2004438043.245.28$18,939
Aug 2004289042.375.55$12,245
Jul 2004291038.286.08$11,139
Jun 2004274036.106.43$9,891
May 2004279037.486.49$10,457
Apr 2004337034.475.86$11,616
Mar 2004348034.365.53$11,957
Feb 2004420032.455.51$13,629
Jan 2004419032.036.30$13,421
Dec 2003423030.266.30$12,800
Nov 2003419028.804.60$12,067
Oct 2003556028.174.76$15,663
Sep 2003418026.314.75$10,998
Aug 2003485029.765.13$14,434
Jul 20030029.415.17$0
Jun 2003333028.565.98$9,510
May 2003549026.595.97$14,598
Apr 2003410026.675.41$10,935
Mar 2003522031.146.10$16,255
Feb 2003339033.487.93$11,350
Jan 2003436030.315.58$13,215
Dec 2002384026.914.85$10,333
Nov 2002516024.664.14$12,725
Oct 2002256026.464.23$6,774
Sep 2002447027.443.64$12,266
Aug 2002512025.963.16$13,292
Jul 2002259024.583.06$6,366
Jun 2002372023.733.34$8,828
May 2002501024.663.58$12,355
Apr 2002439023.653.51$10,382
Mar 2002377022.003.10$8,294
Feb 2002377018.222.38$6,869
Jan 2002426017.172.38$7,314
Dec 2001429016.932.36$7,263
Nov 2001226018.072.41$4,084
Oct 2001338019.782.53$6,686
Sep 2001341024.262.25$8,273
Aug 2001323024.873.05$8,033
Jul 2001453023.933.20$10,840
Jun 2001334024.563.82$8,203
May 2001419025.524.31$10,693
Apr 2001370024.685.34$9,132
Mar 2001262024.545.38$6,429
Feb 2001416027.755.77$11,544
Jan 2001480027.478.40$13,186
Dec 2000357026.889.12$9,596
Nov 2000485032.215.66$15,622
Oct 2000298031.235.15$9,307
Sep 2000399031.875.19$12,716
Aug 2000480029.644.54$14,227
Jul 2000546028.534.09$15,577
Jun 2000413029.304.40$12,101
May 2000540027.263.68$14,720
Apr 2000451024.513.12$11,054
Mar 2000600028.422.86$17,052
Feb 2000371027.622.73$10,247
Jan 2000443025.272.48$11,195
Dec 1999364024.282.42$8,838
Nov 1999369023.192.43$8,557
Oct 1999282020.982.80$5,916
Sep 1999294021.752.62$6,395
Aug 1999281019.262.88$5,412
Jul 1999443017.892.37$7,925
Jun 1999372015.942.36$5,930
May 1999363015.792.32$5,732
Apr 1999438015.102.21$6,614
Mar 1999301012.471.84$3,753
Feb 199937609.981.82$3,752
Jan 1999311010.381.90$3,228
Dec 199844809.201.77$4,122
Nov 1998375010.892.19$4,084
Oct 1998533012.421.97$6,620
Sep 1998460012.592.08$5,791
Aug 1998377011.301.91$4,260
Jul 1998391011.742.24$4,590
Jun 1998526011.242.24$5,912
May 1998429012.622.21$5,414
Apr 1998500013.042.51$6,520
Mar 1998507012.802.31$6,490
Feb 1998492013.952.30$6,863
Jan 1998440014.702.15$6,468
Dec 1997424016.322.41$6,920
Nov 1997417018.193.09$7,585
Oct 1997541019.253.15$10,414
Sep 1997554017.742.95$9,828
Aug 1997557017.862.55$9,948
Jul 1997406017.582.25$7,137
Jun 1997518017.242.26$8,930
May 1997594018.972.31$11,268
Apr 1997540017.882.08$9,655
Mar 1997468018.951.94$8,869
Feb 1997549020.492.21$11,249
Jan 1997537023.483.54$12,609
Dec 1996485023.32$11,310
Nov 1996499021.97$10,963
Oct 1996440023.31$10,256
Sep 1996521022.22$11,577
Aug 1996427020.26$8,651
Jul 1996517019.55$10,107
Jun 1996573018.73$10,732
May 1996664019.43$12,902
Apr 1996535021.51$11,508
Mar 1996469019.38$9,089
Feb 1996579016.98$9,831
Jan 1996539017.07$9,201
Dec 1995622017.19$10,692
Nov 1995525016.00$8,400
Oct 1995520015.43$8,024
Sep 1995603016.18$9,757
Aug 1995518015.92$8,247
Jul 1995587015.24$8,946
Jun 1995513016.41$8,418
May 1995665017.56$11,677
Apr 1995439017.73$7,783
Mar 1995561016.44$9,223
Feb 1995463016.58$7,677
Jan 1995520015.92$8,278
Dec 1994502015.03$7,545
Nov 1994594015.90$9,445
Oct 1994662015.58$10,314
Sep 1994491115.29$7,507
Aug 1994315116.13$5,081
Jul 1994373117.56$6,550
Jun 1994421117.09$7,195
May 1994366115.88$5,812
Apr 1994485114.14$6,858
Mar 1994478112.46$5,956
Feb 1994940112.50$11,750
Jan 1994821112.66$10,394
Dec 1993954412.33$11,763
Nov 19931,049414.49$15,200
Oct 19931,049415.85$16,627
Sep 1993826415.03$12,415
Aug 1993900415.66$14,094
Jul 19931,268415.46$19,603
Jun 1993990416.79$16,622
May 1993922417.68$16,301
Apr 19931,024418.05$18,483
Mar 19931,098418.14$19,918
Feb 1993936417.90$16,754
Jan 1993929416.93$15,728

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                  169 bbl  × $106.41 =    $17,983
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $17,983

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/8921 is the state's own key, not one this site invented.