WILLIAMS

Operated by ROBERTSON RESOURCES, INC. (P-5 718770) in the TANKERSLEY (WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 13840District 7CField 88309600OilCasinghead gasSave
Value, all time
$6.6 M
Jul 1995 – May 2026
Value, last 12 filed months
$187 k
at the published price for each month
Months reported
371
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition140,345 bbl$5,786,138
Casinghead gasProduction174,379 Mcf$821,141
Total$6,607,278

15,325 Mcf of this lease's gas, across 18 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 (1)

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 31.1037, -100.7771. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.10372, -100.77708 · 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 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
5,824 ft
1 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.
1100.0%

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

The one well that filed a depth was drilled to 5,824 ft.

Completions filed
Jul 1995
1 of 1 wells

1 well

42-2353006175,824 ftJul 1995

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 (371)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

371 months

May 202600106.413.05$0
Apr 2026174098.932.87$17,214
Mar 2026174089.753.15$15,617
Feb 202633148363.503.75$22,830
Jan 202617448359.138.00$14,152
Dec 202515349356.664.41$10,845
Nov 202516750658.593.93$11,771
Oct 2025052759.383.30$1,742
Sep 202539053762.743.08$26,121
Aug 202519260363.933.01$14,092
Jul 202519287866.743.32$15,725
Jun 202552180066.483.13$37,139
May 202518068560.553.23$13,113
Apr 202534771362.363.54$24,165
Mar 2025544067.704.27$36,829
Feb 2025035270.884.34$1,528
Jan 202537460274.324.28$30,371
Dec 202438246168.993.12$27,793
Nov 202436743569.052.20$26,298
Oct 202435541471.372.28$26,281
Sep 202417513269.612.36$12,494
Aug 202417128575.632.06$13,521
Jul 202435252079.932.15$29,252
Jun 202435054578.082.63$28,764
May 202433526578.812.20$26,984
Apr 202417026684.451.66$14,798
Mar 20240080.301.55$0
Feb 2024025876.091.78$460
Jan 202417025073.023.30$13,238
Dec 2023169071.262.61$12,043
Nov 2023034877.892.81$977
Oct 2023176085.443.09$15,037
Sep 202304689.042.74$126
Aug 202301880.522.67$48
Jul 2023165074.852.64$12,350
Jun 20231689868.962.26$11,807
May 20230070.622.23$0
Apr 20231744778.122.24$13,698
Mar 20230072.852.39$0
Feb 2023020475.112.47$503
Jan 202317019776.533.39$13,677
Dec 2022175076.415.73$13,372
Nov 2022021485.005.65$1,208
Oct 20220087.185.86$0
Sep 202234416484.888.16$30,538
Aug 2022021894.529.13$1,990
Jul 2022173254101.587.54$19,489
Jun 202200115.097.98$0
May 2022174206109.378.43$20,768
Apr 20221650104.226.84$17,196
Mar 2022173200108.885.08$19,852
Feb 20220091.054.86$0
Jan 202217018481.844.54$14,748
Dec 202135819871.323.90$26,305
Nov 202101,23177.435.24$6,447
Oct 202134319679.795.71$28,488
Sep 202117435169.865.35$14,034
Aug 202134020266.024.22$23,299
Jul 2021018970.783.98$753
Jun 202116819469.493.38$12,330
May 202116519063.483.02$11,048
Apr 202116321860.362.76$10,440
Mar 202133632961.302.72$21,491
Feb 202117118657.805.55$10,916
Jan 202116214950.412.81$8,585
Dec 202016421344.642.68$7,891
Nov 202033036938.772.71$13,793
Oct 202017219936.972.48$6,852
Sep 202016923337.091.99$6,732
Aug 202016720039.982.39$7,154
Jul 202033719338.371.83$13,283
Jun 202016313734.901.69$5,920
May 20200016.921.81$0
Apr 2020014714.751.80$265
Mar 2020055830.341.86$1,036
Feb 202016810349.881.98$8,584
Jan 202033014657.252.09$19,198
Dec 2019015659.012.30$359
Nov 201916416855.302.75$9,531
Oct 201916417753.472.42$9,197
Sep 201916014755.052.66$9,199
Aug 201917316153.112.30$9,559
Jul 201934132756.272.46$19,993
Jun 20191641052.782.49$8,681
May 2019020958.482.74$573
Apr 201914424662.632.75$9,695
Mar 201916719856.803.06$10,092
Feb 201917920550.852.79$9,675
Jan 201916320546.033.23$8,165
Dec 2018169046.594.19$7,874
Nov 2018024652.934.24$1,042
Oct 201817482861.443.40$13,504
Sep 201816220259.543.11$10,273
Aug 201816221659.403.07$10,285
Jul 201816819965.142.93$11,527
Jun 201816420460.183.08$10,497
May 201816620865.382.90$11,456
Apr 201816922863.842.90$11,450
Mar 201816720661.222.79$10,798
Feb 201815920661.782.77$10,393
Jan 201816925862.874.01$11,659
Dec 20170057.272.92$0
Nov 201717422255.423.12$10,335
Oct 201717925449.292.98$9,581
Sep 201716717347.523.09$8,470
Aug 201716726345.373.00$8,367
Jul 201717338843.873.09$8,787
Jun 201734819242.493.09$15,379
May 201717520445.373.26$8,605
Apr 201717625747.933.21$9,261
Mar 20170046.772.98$0
Feb 20170850.452.95$24
Jan 2017175049.413.42$8,647
Dec 2016022648.763.72$841
Nov 201618720442.492.64$8,485
Oct 201616722346.193.09$8,403
Sep 201617320741.553.10$7,830
Aug 201617421641.442.92$7,842
Jul 2016166041.622.92$6,909
Jun 201617223645.352.69$8,434
May 201616919442.521.99$7,572
Apr 201617020336.561.99$6,619
Mar 201617320933.011.79$6,086
Feb 201617418826.472.06$4,994
Jan 201616919127.352.36$5,074
Dec 201517821032.362.00$6,180
Nov 201517618738.792.17$7,232
Oct 201535539643.552.43$16,421
Sep 2015019242.992.76$530
Aug 201535418940.162.87$14,760
Jul 201515925648.152.95$8,410
Jun 2015026056.152.88$750
May 201535519255.212.96$20,167
Apr 201517719149.822.71$9,335
Mar 201517539542.892.93$8,665
Feb 2015174044.662.98$7,771
Jan 201516820943.433.10$7,944
Dec 2014024554.693.59$880
Nov 2014180070.464.25$12,683
Oct 201418420778.303.90$15,215
Sep 201418424286.164.05$16,832
Aug 201418621189.394.04$17,478
Jul 201418222396.564.18$18,506
Jun 201418626698.164.74$19,518
May 2014019294.734.73$908
Apr 201418822995.944.81$19,138
Mar 201418923295.895.06$19,296
Feb 201417713097.406.19$18,045
Jan 201418714490.404.86$17,605
Dec 201317819991.824.35$17,211
Nov 20130088.853.74$0
Oct 201317127297.423.78$17,687
Sep 201363206104.113.72$7,325
Aug 2013184319104.253.52$20,306
Jul 20131620102.523.72$16,608
Jun 2013021494.403.93$842
May 201318310794.834.15$17,798
Apr 201318233293.964.28$18,523
Mar 201335633393.623.91$34,632
Feb 201317437291.233.42$17,146
Jan 201318625391.603.42$17,903
Dec 2012175086.773.42$15,185
Nov 2012029486.953.62$1,066
Oct 201235725689.383.40$32,779
Sep 201217630094.672.92$17,537
Aug 20120992.662.91$26
Jul 201235445885.133.02$31,520
Jun 201235549479.822.52$29,581
May 201217855191.612.49$17,678
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 2012180303101.102.57$18,977
Jan 201236845198.092.73$37,330
Dec 201117330396.873.24$17,740
Nov 201118433495.723.31$18,718
Oct 201106584.983.65$237
Sep 2011035383.623.99$1,407
Aug 201118031583.404.15$16,319
Jul 201117753394.144.52$19,070
Jun 20110092.904.64$0
May 20110198.134.40$4
Apr 20111730105.964.33$18,331
Mar 201118373496.364.06$20,612
Feb 2011170285.644.18$14,567
Jan 201117334586.504.59$16,548
Dec 201018257785.734.35$18,112
Nov 201018053680.843.80$16,586
Oct 201036075378.103.51$30,758
Sep 201035267572.633.98$28,252
Aug 201035475373.684.42$29,411
Jul 2010177072.554.74$12,841
Jun 20103361,04970.364.91$28,792
May 201035041771.124.24$26,658
Apr 2010035281.694.12$1,451
Mar 201017369778.394.39$16,620
Feb 201035747973.585.44$28,875
Jan 20103381,05774.365.96$31,438
Dec 200935797971.445.48$30,873
Nov 20095371,14774.593.75$44,358
Oct 200935532572.544.11$27,088
Sep 20095321,02365.543.06$38,003
Aug 200935577967.423.22$26,441
Jul 200934542261.133.46$22,552
Jun 200918379266.163.90$15,192
May 200936157254.743.93$22,007
Apr 200935844746.773.59$18,347
Mar 200936450642.144.06$17,393
Feb 200917650532.814.63$8,114
Jan 200918099035.865.37$11,772
Dec 200854246837.105.98$22,906
Nov 2008051655.496.86$3,540
Oct 200836283975.246.92$33,044
Sep 2008540957101.767.88$62,489
Aug 20081761,044114.228.48$28,959
Jul 20085344,113131.0811.39$116,841
Jun 20083552,082131.3313.03$73,756
May 20085331,491123.1711.57$82,907
Apr 20083531,240110.3110.45$51,903
Mar 20085211,128101.909.66$63,991
Feb 200817151392.538.77$20,322
Jan 20081721,10390.388.21$24,596
Dec 200770091288.337.30$68,490
Nov 20073451,24591.677.29$40,704
Oct 20075301,87582.856.92$56,889
Sep 20075141,77375.846.24$50,053
Aug 200734994069.066.39$30,107
Jul 200752474870.906.39$41,930
Jun 200750597562.007.55$38,670
May 200771073258.747.85$47,449
Apr 2007070459.617.81$5,495
Mar 20078851,37256.927.30$60,393
Feb 20075191,00055.108.22$36,813
Jan 200769961250.306.73$39,277
Dec 200617653256.656.92$13,651
Nov 200635377154.207.62$25,006
Oct 200636450854.906.01$23,039
Sep 200635261660.085.04$24,251
Aug 200686662768.717.34$64,105
Jul 2006068069.376.34$4,313
Jun 20063371166.286.38$22,407
May 200667288466.016.42$50,038
Apr 2006016664.397.36$1,222
Mar 200667484456.707.08$44,194
Feb 2006062057.597.75$4,806
Jan 200634858060.598.93$26,267
Dec 200585192754.9413.42$59,190
Nov 2005036154.6910.59$3,822
Oct 200535894858.3413.80$33,964
Sep 200570193761.4512.08$54,394
Aug 200563093761.519.80$47,931
Jul 200535695055.697.84$27,277
Jun 200570266052.337.38$41,607
May 20056971,03845.226.65$38,422
Apr 200552395449.207.36$32,754
Mar 200535399750.377.15$24,914
Feb 200570398145.226.31$37,982
Jan 200536186243.166.32$21,031
Dec 200470796739.866.75$34,709
Nov 200453788945.286.33$29,943
Oct 200470888649.706.52$40,960
Sep 2004352043.245.28$15,220
Aug 200470191242.375.55$34,764
Jul 200470389738.286.08$32,368
Jun 200434898636.106.43$18,906
May 200470576337.486.49$31,379
Apr 200470684434.475.86$29,280
Mar 200435882534.365.53$16,863
Feb 200470875132.455.51$27,112
Jan 200471564132.036.30$26,940
Dec 200336165330.266.30$15,039
Nov 200389343228.804.60$27,704
Oct 200334644628.174.76$11,870
Sep 2003046526.314.75$2,208
Aug 200352458229.765.13$18,580
Jul 200352555629.415.17$18,315
Jun 200336737628.565.98$12,731
May 200369172526.595.97$22,704
Apr 200335575226.675.41$13,534
Mar 200371370831.146.10$26,519
Feb 200335451533.487.93$15,934
Jan 200370583630.315.58$26,035
Dec 200269551726.914.85$21,212
Nov 200218491024.664.14$8,302
Oct 20021,03456826.464.23$29,762
Sep 200252575527.443.64$17,151
Aug 200269365125.963.16$20,050
Jul 200270464324.583.06$19,273
Jun 200235552023.733.34$10,160
May 200270062324.663.58$19,495
Apr 200234654423.653.51$10,094
Mar 200271438022.003.10$16,887
Feb 200271248918.222.38$14,134
Jan 200235545817.172.38$7,183
Dec 200135944316.932.36$7,125
Nov 20011,01243318.072.41$19,328
Oct 2001041219.782.53$1,042
Sep 200135043924.262.25$9,479
Aug 200170545424.873.05$18,919
Jul 200151949823.933.20$14,012
Jun 200169648324.563.82$18,941
May 200152736825.524.31$15,034
Apr 200153238024.685.34$15,157
Mar 200171444024.545.38$19,887
Feb 200135928227.755.77$11,589
Jan 200135740327.478.40$13,191
Dec 200071732226.889.12$22,210
Nov 200035641632.215.66$13,820
Oct 200063838931.235.15$21,926
Sep 200035630931.875.19$12,948
Aug 200052231829.644.54$16,916
Jul 200035030728.534.09$11,241
Jun 200049537729.304.40$16,161
May 200053538727.263.68$16,008
Apr 20001,19041924.513.12$30,473
Mar 2000037128.422.86$1,061
Feb 200070547327.622.73$20,762
Jan 200070171825.272.48$19,495
Dec 19991,4201,02524.282.42$36,962
Nov 199971489523.192.43$18,736
Oct 19991,4071,00320.982.80$32,331
Sep 19991,05484321.752.62$25,132
Aug 199966865019.262.88$14,735
Jul 19991,03263617.892.37$19,971
Jun 199966949015.942.36$11,821
May 199967839315.792.32$11,618
Apr 199953447215.102.21$9,106
Mar 199953244412.471.84$7,450
Feb 19991,0383009.981.82$10,905
Jan 199932750310.381.90$4,350
Dec 19984783019.201.77$4,931
Nov 199862834610.892.19$7,595
Oct 199864135812.421.97$8,666
Sep 199847037212.592.08$6,692
Aug 199862237711.301.91$7,748
Jul 199880843811.742.24$10,466
Jun 199853137711.242.24$6,812
May 199871144112.622.21$9,946
Apr 199835236213.042.51$5,497
Mar 199866748212.802.31$9,651
Feb 19981,01557713.952.30$15,486
Jan 19981,23163514.702.15$19,464
Dec 199789174216.322.41$16,330
Nov 199781767318.193.09$16,940
Oct 19971,10671019.253.15$23,527
Sep 19971,21480517.742.95$23,915
Aug 19971,02173117.862.55$20,103
Jul 199770771017.582.25$14,024
Jun 19971,06362317.242.26$19,732
May 199776954818.972.31$15,853
Apr 199789665817.882.08$17,391
Mar 19971,04666118.951.94$21,103
Feb 199791063720.492.21$20,051
Jan 19971,20772923.483.54$30,921
Dec 19961,06874823.32$24,906
Nov 199685571421.97$18,784
Oct 19961,05965823.31$24,685
Sep 199682556022.22$18,332
Aug 19961,20650720.26$24,434
Jul 199664864319.55$12,668
Jun 199635159118.73$6,574
May 199670530419.43$13,698
Apr 19961,19277721.51$25,640
Mar 19961,06785219.38$20,678
Feb 19961,02674216.98$17,421
Jan 19961,0721,03817.07$18,299
Dec 19951,4281,09517.19$24,547
Nov 19951,24498616.00$19,904
Oct 19952,1121,88815.43$32,588
Sep 19951,7661,85116.18$28,574
Aug 199588697115.92$14,105
Jul 199568840015.24$10,485

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 2026 — as filed, then multipliedworked
Oil                  174 bbl  × $ 98.93 =    $17,214
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $17,214

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. 7C/O/13840 is the state's own key, not one this site invented.