RILEY, T. S. ESTATE "B"

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the RUSSELL, NORTH (DEVONIAN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 8449District 8AField 79004250OilCasinghead gasSave
Value, all time
$73.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$303 k
at the published price for each month
Months reported
401
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
OilDisposition1,216,101 bbl$72,332,110
Casinghead gasProduction218,003 Mcf$1,269,419
Total$73,601,529

3,489 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 (12)

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 32.8366, -102.8920. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

32.83488, -102.89128 · 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%
8 of 12 wells
With a plug date
50.0%
6 of 12 wells
Median depth
10,970 ft
9 wells filed one
Completion to plug
12.8 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
866.7%
A plug date is filed
650.0%
BothOn the schedule and plugged. Neither fact cancels the other.
650.0%
NeitherNo plug date, and not on the schedule.
433.3%

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

0k
2k
4k
6k
8k
10k
12k
15k
20k+

Total depth in feet, 9 of 12 wells. Median 10,970 ft, with the middle half between 10,920 and 11,060 ft; the shallowest is 10,866 ft and the deepest 12,230 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

70s
80s
90s
00s
10s

Last completion by decade, 9 of 12 wells, Apr 1971 – Oct 2017. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Apr 1971 – Oct 2017
9 of 12 wells; 3 filed none
Plug dates filed
Jun 1974 – Sep 2024
6 of 12 wells; 6 filed none

Last completion to plug: a median of 12.8 years across the 4 wells that filed both dates, with the middle half between 7.1 years and 19.3 years. A further 1 well is excluded, because the last completion the Commission holds for it is dated after the plug date. Both dates are the latest of their kind on the wellbore record and they are filed separately, so the two need not run in order. The gap is the distance between two filed dates — it is not a statement of how long the well produced.

12 wells

42-1650301110Yes
42-16503121110,920 ftJul 1998Yes
42-165030054
42-16503006510,866 ftOct 2017
42-16503007611,060 ftOct 2017Sep 2024Yes
42-16503010911,007 ftDec 2015
42-16503122212,230 ftJan 2015Mar 2022Yes
42-165030131211,097 ftMar 2014
42-16503008710,935 ftApr 2010Jun 1974Yes
42-16503004310,877 ftJul 1983Apr 2005Yes
42-16503009810,970 ftJun 1972Nov 1990Yes
42-1650301211Apr 1971Yes

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 2026404184106.413.05$43,550
Apr 202629619098.932.87$29,829
Mar 202639020389.753.15$35,642
Feb 202627718563.503.75$18,283
Jan 202634112159.138.00$21,131
Dec 202536119656.664.41$21,319
Nov 202538416258.593.93$23,135
Oct 202538618059.383.30$23,516
Sep 202524510062.743.08$15,679
Aug 202539419663.933.01$25,779
Jul 202531618166.743.32$21,690
Jun 202534425766.483.13$23,673
May 202538627160.553.23$24,248
Apr 202538825162.363.54$25,085
Mar 202540121067.704.27$28,044
Feb 202535513770.884.34$25,757
Jan 202530515174.324.28$23,314
Dec 202434117468.993.12$24,069
Nov 202446822869.052.20$32,817
Oct 202438520571.372.28$27,945
Sep 20241496269.612.36$10,518
Aug 202443121175.632.06$33,032
Jul 202431317279.932.15$25,387
Jun 202425211478.082.63$19,976
May 202444716478.812.20$35,589
Apr 202446617384.451.66$39,641
Mar 202437217780.301.55$30,145
Feb 20240076.091.78$0
Jan 2024553673.023.30$4,135
Dec 20235536371.262.61$39,571
Nov 20235415877.892.81$42,301
Oct 20230185.443.09$3
Sep 202337621389.042.74$34,062
Aug 202334423180.522.67$28,316
Jul 202369825774.852.64$52,924
Jun 202338824268.962.26$27,303
May 202338016470.622.23$27,201
Apr 20233706678.122.24$29,052
Mar 20233643972.852.39$26,611
Feb 20233403775.112.47$25,629
Jan 20235423776.533.39$41,605
Dec 20223183576.415.73$24,499
Nov 20226363685.005.65$54,263
Oct 20225274087.185.86$46,178
Sep 20223375484.888.16$29,045
Aug 202219516194.529.13$19,901
Jul 2022884182101.587.54$91,169
Jun 2022356222115.097.98$42,743
May 2022341141109.378.43$38,484
Apr 202200104.226.84$0
Mar 202236077108.885.08$39,588
Feb 202236410791.054.86$33,662
Jan 202275613781.844.54$62,493
Dec 202135014171.323.90$25,512
Nov 202174013477.435.24$58,000
Oct 202135716379.795.71$29,416
Sep 202171525469.865.35$51,309
Aug 202134718366.024.22$23,681
Jul 202171220770.783.98$51,220
Jun 202135112369.493.38$24,807
May 202104563.483.02$136
Apr 202103060.362.76$83
Mar 20210061.302.72$0
Feb 20213546757.805.55$20,833
Jan 202133817250.412.81$17,522
Dec 202053719044.642.68$24,480
Nov 202033521938.772.71$13,581
Oct 202035617136.972.48$13,585
Sep 20205386237.091.99$20,078
Aug 20207224539.982.39$28,973
Jul 202003138.371.83$57
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20201803014.751.80$2,709
Mar 202003130.341.86$58
Feb 20200049.881.98$0
Jan 20207203657.252.09$41,295
Dec 20191743159.012.30$10,339
Nov 20195453055.302.75$30,221
Oct 20197043153.472.42$37,718
Sep 20193582955.052.66$19,785
Aug 20193583153.112.30$19,085
Jul 20196983156.272.46$39,353
Jun 20197102952.782.49$37,546
May 20193613158.482.74$21,196
Apr 20197153062.632.75$44,863
Mar 20197233156.803.06$41,161
Feb 20197222750.852.79$36,789
Jan 20193683146.033.23$17,039
Dec 201803146.594.19$130
Nov 20180052.934.24$0
Oct 20183463161.443.40$21,364
Sep 20187203259.543.11$42,968
Aug 20183593359.403.07$21,426
Jul 20187218865.142.93$47,224
Jun 20185296060.183.08$32,020
May 201872025265.382.90$47,805
Apr 20183599363.842.90$23,188
Mar 20185514061.222.79$33,844
Feb 20185302761.782.77$32,818
Jan 20183575962.874.01$22,681
Dec 20176833057.272.92$39,203
Nov 20173682955.423.12$20,485
Oct 20177352949.292.98$36,315
Sep 20175236247.523.09$25,044
Aug 201770811645.373.00$32,470
Jul 201769729943.873.09$31,500
Jun 201753236842.493.09$23,741
May 20171,03833745.373.26$48,194
Apr 20171,14761447.933.21$56,948
Mar 20171,9333046.772.98$90,496
Feb 20171,75387450.452.95$91,019
Jan 20171,92769849.413.42$97,599
Dec 20161,74385348.763.72$88,164
Nov 20161,55084742.492.64$68,099
Oct 20161,75187646.193.09$83,586
Sep 20161,56081741.553.10$67,351
Aug 20161,36366441.442.92$58,424
Jul 20161,35968641.622.92$58,568
Jun 20161,15250345.352.69$53,594
May 20161,7383042.521.99$73,959
Apr 20162,3282936.561.99$85,169
Mar 20161,9433133.011.79$64,194
Feb 20161,9693226.472.06$52,185
Jan 20162,1873127.352.36$59,888
Dec 20152,1633132.362.00$70,057
Nov 20151,5582938.792.17$60,498
Oct 20151,3233043.552.43$57,689
Sep 20153,0691,04442.992.76$134,816
Aug 20152,64279740.162.87$108,392
Jul 20152,48868848.152.95$121,823
Jun 20152,51492056.152.88$143,813
May 20153,10988755.212.96$174,269
Apr 20152,91180649.822.71$147,208
Mar 20153,85579342.892.93$167,668
Feb 20152,7531,08944.662.98$126,190
Jan 20153,36676243.433.10$148,548
Dec 20143,5531,12354.693.59$198,347
Nov 20143,5391,14870.464.25$254,239
Oct 20143,13389578.303.90$248,805
Sep 20142,7291,02886.164.05$239,289
Aug 20143,0701,20589.394.04$279,290
Jul 20143,3643296.564.18$324,962
Jun 20141,72152498.164.74$171,415
May 20143,06731194.734.73$292,007
Apr 20143,3861,26795.944.81$330,946
Mar 20144,53859695.895.06$438,163
Feb 20142,27734597.406.19$223,916
Jan 20142,35915590.404.86$214,007
Dec 20132,7374691.824.35$251,512
Nov 20133,89145988.853.74$347,431
Oct 20133,9311,44997.423.78$388,434
Sep 20133,958773104.113.72$414,941
Aug 20134,063503104.253.52$425,340
Jul 20134,600376102.523.72$472,990
Jun 20133,97498294.403.93$379,008
May 20134,28989594.834.15$410,439
Apr 20134,38752993.964.28$414,468
Mar 20134,57657493.623.91$430,651
Feb 20134,54678491.233.42$417,413
Jan 20135,04582491.603.42$464,940
Dec 20125,10370186.773.42$445,185
Nov 20124,87683486.953.62$426,991
Oct 20124,8871,27189.383.40$441,121
Sep 20126,0571,17994.672.92$576,857
Aug 20125,00134592.662.91$464,396
Jul 20124,57292085.133.02$391,994
Jun 20125,72454579.822.52$458,263
May 20126,99235091.612.49$641,408
Apr 20127,789720101.652.00$793,190
Mar 20124,695275105.052.22$493,821
Feb 20124,720295101.102.57$477,950
Jan 20127,31285398.092.73$719,566
Dec 20118,1611,08796.873.24$794,078
Nov 20118,32076895.723.31$798,933
Oct 20118,0301,09584.983.65$686,385
Sep 20116,01065883.623.99$505,179
Aug 20116,7291,19383.404.15$566,149
Jul 20117,2311,56694.144.52$687,800
Jun 20116,9151,13892.904.64$647,684
May 20117,60299798.134.40$750,376
Apr 20116,250928105.964.33$666,271
Mar 20116,49992996.364.06$630,013
Feb 20115,50955485.644.18$474,106
Jan 20118,0691,13486.504.59$703,172
Dec 20107,92491085.734.35$683,281
Nov 20106,71495880.843.80$546,396
Oct 20108,45997178.103.51$664,055
Sep 20107,71186772.633.98$563,500
Aug 20107,67496973.684.42$569,703
Jul 20106,69281872.554.74$489,379
Jun 20107,00782370.364.91$497,054
May 20107,3061,04571.124.24$524,029
Apr 20107,7291,04981.694.12$635,707
Mar 20106,6791,30578.394.39$529,294
Feb 20104,3491,09073.585.44$325,932
Jan 20104,69562174.365.96$352,824
Dec 20094,96265471.445.48$358,072
Nov 20094,70448174.593.75$352,676
Oct 20094,9581,07372.544.11$364,064
Sep 20095,3121,51465.543.06$352,789
Aug 20094,6591,55467.423.22$319,111
Jul 20095,1401,42061.133.46$319,128
Jun 20094,4631,05266.163.90$299,370
May 20095,1091,12754.743.93$284,091
Apr 20095,4351,15246.773.59$258,328
Mar 20095,3961,15742.144.06$232,084
Feb 20095,1541,15732.814.63$174,463
Jan 20095,91414235.865.37$212,839
Dec 20086,19383737.105.98$234,763
Nov 20085,8471,90755.496.86$337,533
Oct 20086,0901,63775.246.92$469,543
Sep 20086,1091,423101.767.88$632,861
Aug 20086,7281,660114.228.48$782,554
Jul 20086,5400131.0811.39$857,263
Jun 20086,4071,466131.3313.03$860,537
May 20088,1161,937123.1711.57$1,022,067
Apr 20084,6761,335110.3110.45$529,767
Mar 20085,1721,383101.909.66$540,392
Feb 20084,5431,19792.538.77$430,862
Jan 20084,8431,33190.388.21$448,632
Dec 20074,5851,32688.337.30$414,675
Nov 20075,0171,54091.677.29$471,138
Oct 20075,2072,20282.856.92$446,642
Sep 20075,7192,18975.846.24$447,397
Aug 20073,9491,33069.066.39$281,214
Jul 20074,5821,31070.906.39$333,232
Jun 20074,2611,66462.007.55$276,743
May 20075,2261,75758.747.85$320,761
Apr 20075,5801,61359.617.81$345,214
Mar 20074,5961,51156.927.30$272,638
Feb 20074,8531,41555.108.22$279,026
Jan 20075,7071,60850.306.73$297,879
Dec 20066,9831,98556.656.92$409,320
Nov 20067,3132,00354.207.62$411,622
Oct 20067,4642,06754.906.01$422,204
Sep 20067,2841,82660.085.04$446,821
Aug 20067,4981,89068.717.34$529,060
Jul 20067,3521,86669.376.34$521,844
Jun 20065,9811,72866.286.38$407,452
May 20065,8881,34666.016.42$397,315
Apr 20066,6131,40364.397.36$436,138
Mar 20067,9381,75256.707.08$462,494
Feb 20067,0841,67757.597.75$420,966
Jan 20068,2821,59660.598.93$516,064
Dec 20058,5201,90854.9413.42$493,685
Nov 20059,8952,19854.6910.59$564,431
Oct 200510,3032,37558.3413.80$633,842
Sep 200510,0952,63261.4512.08$652,130
Aug 200510,1142,54161.519.80$647,006
Jul 200512,0182,82555.697.84$691,441
Jun 200511,0023,68052.337.38$602,897
May 200511,5103,52945.226.65$543,954
Apr 200512,4773,35149.207.36$638,533
Mar 200514,0763,32450.377.15$732,791
Feb 200512,1272,80745.226.31$566,101
Jan 200515,1623,12343.166.32$674,136
Dec 200412,1173,23939.866.75$504,850
Nov 200411,0513,03445.286.33$519,596
Oct 200412,3192,96749.706.52$631,585
Sep 200410,1662,62943.245.28$453,469
Aug 200412,1593,23842.375.55$533,150
Jul 200412,8903,67238.286.08$515,770
Jun 200411,0032,25336.106.43$411,702
May 200416,1742,83237.486.49$624,594
Apr 200420,1023,21034.475.86$711,722
Mar 200422,9521,40534.365.53$796,401
Feb 200413,3031,46432.455.51$439,748
Jan 200415,1862,20832.036.30$500,317
Dec 200317,2522,42230.266.30$537,308
Nov 200319,868028.804.60$572,198
Oct 200327,533028.174.76$775,605
Sep 200320,216026.314.75$531,883
Aug 200319,506029.765.13$580,499
Jul 20030029.415.17$0
Jun 2003472028.565.98$13,480
May 20031,219026.595.97$32,413
Apr 20031,022026.675.41$27,257
Mar 20031,230031.146.10$38,302
Feb 20031,229033.487.93$41,147
Jan 20031,057030.315.58$32,038
Dec 20021,389026.914.85$37,378
Nov 20021,244024.664.14$30,677
Oct 20021,036026.464.23$27,413
Sep 20021,217027.443.64$33,394
Aug 20021,391025.963.16$36,110
Jul 20021,403024.583.06$34,486
Jun 20021,408023.733.34$33,412
May 20021,060024.663.58$26,140
Apr 20021,403023.653.51$33,181
Mar 20021,231022.003.10$27,082
Feb 20021,589018.222.38$28,952
Jan 20021,585017.172.38$27,214
Dec 20011,576016.932.36$26,682
Nov 20011,762018.072.41$31,839
Oct 20012,103019.782.53$41,597
Sep 20012,082024.262.25$50,509
Aug 20012,614024.873.05$65,010
Jul 2001704023.933.20$16,847
Jun 2001879024.563.82$21,588
May 2001354025.524.31$9,034
Apr 2001537024.685.34$13,253
Mar 2001686024.545.38$16,834
Feb 2001703027.755.77$19,508
Jan 2001530027.478.40$14,559
Dec 2000904026.889.12$24,300
Nov 2000358032.215.66$11,531
Oct 2000699031.235.15$21,830
Sep 2000682031.875.19$21,735
Aug 2000514029.644.54$15,235
Jul 2000856028.534.09$24,422
Jun 2000686029.304.40$20,100
May 2000524027.263.68$14,284
Apr 2000837024.513.12$20,515
Mar 2000515028.422.86$14,636
Feb 2000692027.622.73$19,113
Jan 20001,014025.272.48$25,624
Dec 1999513024.282.42$12,456
Nov 1999505023.192.43$11,711
Oct 1999502020.982.80$10,532
Sep 1999695021.752.62$15,116
Aug 1999695019.262.88$13,386
Jul 1999859017.892.37$15,368
Jun 1999336015.942.36$5,356
May 19991,190015.792.32$18,790
Apr 1999347015.102.21$5,240
Mar 1999343012.471.84$4,277
Feb 199969709.981.82$6,956
Jan 1999693010.381.90$7,193
Dec 199869609.201.77$6,403
Nov 1998696010.892.19$7,579
Oct 1998695012.421.97$8,632
Sep 1998687012.592.08$8,649
Aug 1998353011.301.91$3,989
Jul 1998682011.742.24$8,007
Jun 1998702011.242.24$7,890
May 1998697012.622.21$8,796
Apr 1998693013.042.51$9,037
Mar 1998343012.802.31$4,390
Feb 1998542013.952.30$7,561
Jan 1998689014.702.15$10,128
Dec 1997721016.322.41$11,767
Nov 1997554018.193.09$10,077
Oct 1997719019.253.15$13,841
Sep 1997716317.742.95$12,711
Aug 1997560017.862.55$10,002
Jul 1997726417.582.25$12,772
Jun 1997528117.242.26$9,105
May 1997746018.972.31$14,152
Apr 19977343517.882.08$13,197
Mar 19975464918.951.94$10,442
Feb 19977413820.492.21$15,267
Jan 19977394023.483.54$17,493
Dec 19965415223.32$12,616
Nov 19968385821.97$18,411
Oct 19965424923.31$12,634
Sep 19966154522.22$13,665
Aug 19967456220.26$15,094
Jul 19969084919.55$17,751
Jun 19963143218.73$5,881
May 19965454219.43$10,589
Apr 19965353621.51$11,508
Mar 19968044819.38$15,582
Feb 19965433916.98$9,220
Jan 19965483717.07$9,354
Dec 19959664417.19$16,606
Nov 19956273816.00$10,032
Oct 19955454615.43$8,409
Sep 19957335116.18$11,860
Aug 19959357115.92$14,885
Jul 19954587915.24$6,980
Jun 19959316216.41$15,278
May 19954666417.56$8,183
Apr 19959135517.73$16,187
Mar 19954395216.44$7,217
Feb 19954816016.58$7,975
Jan 19959186415.92$14,615
Dec 19944765615.03$7,154
Nov 19949405015.90$14,946
Oct 19944725515.58$7,354
Sep 19949356015.29$14,296
Aug 199493516316.13$15,082
Jul 199492520917.56$16,243
Jun 199492628417.09$15,825
May 199492519315.88$14,689
Apr 19944678714.14$6,603
Mar 19948838312.46$11,002
Feb 19944766912.50$5,950
Jan 19949197412.66$11,635
Dec 19934574712.33$5,635
Nov 19934752214.49$6,883
Oct 19939425715.85$14,931
Sep 19934665115.03$7,004
Aug 19939379115.66$14,673
Jul 19939439015.46$14,579
Jun 19934709316.79$7,891
May 19939499117.68$16,778
Apr 19939058118.05$16,335
Mar 19934798718.14$8,689
Feb 19939617717.90$17,202
Jan 19934798416.93$8,109

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                  404 bbl  × $106.41 =    $42,990
Casinghead gas       184 Mcf  × $  3.05 =       $560

────────────────────────────────────────────────────
Month total                                  $43,550

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/8449 is the state's own key, not one this site invented.