ROBERTS-COBLE "B"

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

Oil lease lease 3568District 8AField 53411001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$38.7 M
Jan 1993 – May 2026
Value, last 12 filed months
$563 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 568 leases and 7,034 wells, and the rule below applies to all of them.

Discovered
1945-01-17
as the register files it
Field class
Oil
the register's own label
Between wells
880 ft
minimum
From a lease line
440 ft
minimum

A drilling unit in this field needs at least 21.25 acres.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: ASSOCIATED GAS FIELD LEVELLAND (SAN ANDRES)

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA2none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition799,234 bbl$38,043,995
Casinghead gasProduction236,634 Mcf$701,990
Total$38,745,985

66,021 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 33.5999, -102.5215. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

33.59991, -102.52126 · 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%
4 of 12 wells
With a plug date
33.3%
4 of 12 wells
Median depth
4,965 ft
12 wells filed one
Completion to plug
12.0 years
median over 3 wells

What the state filed about each well

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

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

Total depth in feet, 12 of 12 wells. Median 4,965 ft, with the middle half between 4,908 and 4,983 ft; the shallowest is 4,830 ft and the deepest 6,208 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

Last completion by decade, 10 of 12 wells, May 1948 – Sep 2014. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
May 1948 – Sep 2014
10 of 12 wells; 2 filed none
Plug dates filed
Aug 2001 – May 2024
4 of 12 wells; 8 filed none

Last completion to plug: a median of 12.0 years across the 3 wells that filed both dates, with the middle half between 10.8 years and 43.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

12 wells

42-2190024844,913 ftAug 2001Yes
42-21931982114,960 ft
42-21931983105,000 ftSep 2014May 2024Yes
42-2190024214,894 ftSep 2014
42-219319859W4,980 ftSep 2010
42-2190025054,835 ftJul 2010Jul 2022Yes
42-219319796W4,970 ftAug 2009
42-2193198484,990 ftMay 1990
42-2193197812W4,970 ftOct 1977
42-2193198676,208 ftSep 1977
42-2190024424,915 ftMay 1948
42-2190024634,830 ftMay 1948May 2023Yes

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 20266440106.413.05$68,528
Apr 2026609098.932.87$60,248
Mar 2026555089.753.15$49,811
Feb 2026517063.503.75$32,830
Jan 2026697059.138.00$41,214
Dec 2025667056.664.41$37,792
Nov 2025683058.593.93$40,017
Oct 2025774059.383.30$45,960
Sep 2025646062.743.08$40,530
Aug 2025765063.933.01$48,906
Jul 2025713066.743.32$47,586
Jun 2025744066.483.13$49,461
May 2025727060.553.23$44,020
Apr 2025701062.363.54$43,714
Mar 2025783067.704.27$53,009
Feb 2025589270.884.34$41,757
Jan 2025799174.324.28$59,386
Dec 202467712568.993.12$47,096
Nov 202433212069.052.20$23,188
Oct 202460612471.372.28$43,533
Sep 2024811069.612.36$56,454
Aug 20247014575.632.06$53,109
Jul 20247749579.932.15$62,070
Jun 202480210178.082.63$62,886
May 20247965078.812.20$62,843
Apr 20248264984.451.66$69,837
Mar 20248472980.301.55$68,059
Feb 202470513576.091.78$53,884
Jan 202485413773.023.30$62,811
Dec 202383612771.262.61$59,905
Nov 20231,14228777.892.81$89,756
Oct 202361013685.443.09$52,538
Sep 2023563189.042.74$50,132
Aug 2023698980.522.67$56,227
Jul 202368417374.852.64$51,654
Jun 202360817568.962.26$42,323
May 202367616670.622.23$48,109
Apr 20236624078.122.24$51,805
Mar 20239517072.852.39$69,448
Feb 20231,04318075.112.47$78,784
Jan 20231,05620476.533.39$81,507
Dec 20221,16416176.415.73$89,864
Nov 20221,13025385.005.65$97,478
Oct 20221,12530587.185.86$99,866
Sep 20221,03816284.888.16$89,428
Aug 20221,0369494.529.13$98,781
Jul 20221,017230101.587.54$105,042
Jun 20221,044291115.097.98$122,475
May 20221,078269109.378.43$120,169
Apr 2022979227104.226.84$103,584
Mar 20221,001185108.885.08$109,928
Feb 202295227291.054.86$88,001
Jan 20221,13631081.844.54$94,377
Dec 20211,17631171.323.90$85,085
Nov 20211,06432177.435.24$84,067
Oct 20211,14233379.795.71$93,023
Sep 202193619769.865.35$66,443
Aug 20211,00219766.024.22$66,984
Jul 20211,00520870.783.98$71,962
Jun 202197912969.493.38$68,467
May 20211,31123463.483.02$83,928
Apr 20211,21420060.362.76$73,829
Mar 20211,18019261.302.72$72,856
Feb 20211,06125457.805.55$62,735
Jan 20211,18729750.412.81$60,671
Dec 20201,27029744.642.68$57,487
Nov 20201,39132638.772.71$54,811
Oct 20201,13334436.972.48$42,740
Sep 20201,27322737.091.99$47,668
Aug 20201,32827539.982.39$53,749
Jul 20201,33924638.371.83$51,826
Jun 20201,28027434.901.69$45,135
May 20201,39529016.921.81$24,130
Apr 20201,32430514.751.80$20,079
Mar 20201,22427530.341.86$37,647
Feb 20201,27735849.881.98$64,406
Jan 20201,42040857.252.09$82,150
Dec 20191,46041059.012.30$87,099
Nov 20191,20638455.302.75$67,748
Oct 20191,32840153.472.42$71,978
Sep 20191,32315955.052.66$73,254
Aug 20191,34327653.112.30$71,963
Jul 20191,37029356.272.46$77,811
Jun 20191,30728752.782.49$69,698
May 20191,36424458.482.74$80,435
Apr 20191,43133362.632.75$90,540
Mar 20191,538056.803.06$87,358
Feb 20191,40451250.852.79$72,823
Jan 20191,52439846.033.23$71,435
Dec 20181,53549646.594.19$73,592
Nov 20181,56257052.934.24$85,092
Oct 20181,44154161.443.40$90,373
Sep 20181,53535959.543.11$92,510
Aug 20181,63748159.403.07$98,713
Jul 20181,62167165.142.93$107,559
Jun 20181,50156960.183.08$92,081
May 20181,63062965.382.90$108,394
Apr 20181,42747663.842.90$92,480
Mar 20181,61458561.222.79$100,439
Feb 20181,46465061.782.77$92,244
Jan 20181,72770862.874.01$111,415
Dec 20171,40857357.272.92$82,310
Nov 20171,65566855.423.12$93,803
Oct 20171,55568449.292.98$78,687
Sep 20171,54356247.523.09$75,058
Aug 20171,63467645.373.00$76,166
Jul 20171,64364443.873.09$74,067
Jun 20171,55035742.493.09$66,962
May 20171,565945.373.26$71,033
Apr 20171,521847.933.21$72,927
Mar 20171,64629946.772.98$77,876
Feb 20171,50551650.452.95$77,451
Jan 20171,63960949.413.42$83,065
Dec 20161,58453348.763.72$79,220
Nov 20161,61821442.492.64$69,315
Oct 20161,64363946.193.09$77,865
Sep 20161,65458541.553.10$70,538
Aug 20161,70259541.442.92$72,271
Jul 20161,78365541.622.92$76,124
Jun 20161,58273245.352.69$73,710
May 20161,83574342.521.99$79,504
Apr 20161,82171336.561.99$67,995
Mar 20161,81493233.011.79$61,552
Feb 20161,71980726.472.06$47,167
Jan 20161,63663427.352.36$46,244
Dec 20151,76439732.362.00$57,878
Nov 20151,44454638.792.17$57,196
Oct 20151,73378743.552.43$77,382
Sep 20151,62164842.992.76$71,474
Aug 20151,70733440.162.87$69,513
Jul 20151,77727348.152.95$86,367
Jun 20151,83447056.152.88$104,334
May 20151,90940955.212.96$106,605
Apr 20151,78942549.822.71$90,278
Mar 20152,03639542.892.93$88,483
Feb 20151,70932744.662.98$77,297
Jan 20151,77725843.433.10$77,975
Dec 20142,13444054.693.59$118,289
Nov 20141,99239270.464.25$142,023
Oct 20142,04359278.303.90$162,276
Sep 20141,85547686.164.05$161,752
Aug 20141,77853289.394.04$161,082
Jul 20141,85251796.564.18$180,990
Jun 20141,81827898.164.74$179,772
May 20141,79740194.734.73$172,125
Apr 20141,91413995.944.81$184,298
Mar 20141,91516795.895.06$184,474
Feb 20141,81229997.406.19$178,340
Jan 20141,9758190.404.86$178,934
Dec 20131,838091.824.35$168,765
Nov 20132,027088.853.74$180,099
Oct 20131,96834697.423.78$193,030
Sep 20131,948569104.113.72$204,922
Aug 20131,895523104.253.52$199,396
Jul 20132,078639102.523.72$215,412
Jun 20131,75546994.403.93$167,517
May 20132,04352894.834.15$195,928
Apr 20131,92444493.964.28$182,681
Mar 20132,03039293.623.91$191,582
Feb 20131,73039291.233.42$159,169
Jan 20132,09837891.603.42$193,470
Dec 20122,05835886.773.42$179,797
Nov 20121,93137686.953.62$169,263
Oct 20122,07036089.383.40$186,240
Sep 20122,07121094.672.92$196,674
Aug 20121,93829492.662.91$180,430
Jul 20122,06640185.133.02$177,090
Jun 20121,97538379.822.52$158,609
May 20122,18448591.612.49$201,283
Apr 20122,026440101.652.00$206,821
Mar 20122,111272105.052.22$222,365
Feb 20122,0650101.102.57$208,772
Jan 20122,13929898.092.73$210,629
Dec 20112,29381296.873.24$224,754
Nov 20112,30144395.723.31$221,719
Oct 20112,33042984.983.65$199,569
Sep 20111,65936283.623.99$140,168
Aug 20112,18753983.404.15$184,632
Jul 20112,29651594.144.52$218,472
Jun 20112,03453892.904.64$191,455
May 20112,25161498.134.40$223,595
Apr 20112,031462105.964.33$217,207
Mar 20112,28150796.364.06$221,854
Feb 20112,01339685.644.18$174,049
Jan 20112,28940786.504.59$199,866
Dec 20102,19642985.734.35$190,128
Nov 20102,12446680.843.80$173,473
Oct 20102,15353578.103.51$170,027
Sep 20102,22640772.633.98$163,294
Aug 20102,23465373.684.42$167,487
Jul 20102,44069872.554.74$180,328
Jun 20102,06249670.364.91$147,518
May 20102,35551671.124.24$169,673
Apr 20102,10250081.694.12$173,774
Mar 20102,24940178.394.39$178,059
Feb 20101,93332573.585.44$143,999
Jan 20102,24237874.365.96$168,970
Dec 20092,23035171.445.48$161,236
Nov 20092,29338474.593.75$172,475
Oct 20092,10622572.544.11$153,694
Sep 20092,35937665.543.06$155,761
Aug 20092,45745367.423.22$167,109
Jul 20092,27157061.133.46$140,801
Jun 20092,45739666.163.90$164,098
May 20092,48152254.743.93$137,859
Apr 20092,38855946.773.59$113,692
Mar 20092,41945342.144.06$103,775
Feb 20092,28945832.814.63$77,224
Jan 20092,57053835.865.37$95,050
Dec 20082,58849737.105.98$98,985
Nov 20082,51357555.496.86$143,391
Oct 20082,60654175.246.92$199,820
Sep 20082,449545101.767.88$253,503
Aug 20082,7440114.228.48$313,420
Jul 20082,614683131.0811.39$350,422
Jun 20082,608681131.3313.03$351,384
May 20082,886648123.1711.57$362,969
Apr 20082,379502110.3110.45$267,676
Mar 20082,647430101.909.66$273,885
Feb 20082,63227192.538.77$245,916
Jan 20082,83722890.388.21$258,279
Dec 20072,77925788.337.30$247,346
Nov 20072,66735291.677.29$247,051
Oct 20072,65343482.856.92$222,805
Sep 20072,50036875.846.24$191,898
Aug 20072,42334869.066.39$169,555
Jul 20072,40336270.906.39$172,685
Jun 20072,38844662.007.55$151,423
May 20072,42439958.747.85$145,516
Apr 20072,30237059.617.81$140,110
Mar 20072,46640256.927.30$143,300
Feb 20072,16535255.108.22$122,184
Jan 20072,38636150.306.73$122,444
Dec 20062,44326756.656.92$140,243
Nov 20062,33128154.207.62$128,481
Oct 20062,48929254.906.01$138,402
Sep 20062,49039660.085.04$151,594
Aug 20062,58841868.717.34$180,890
Jul 20062,67046669.376.34$188,174
Jun 20062,48844966.286.38$167,771
May 20062,674066.016.42$176,511
Apr 20062,636064.397.36$169,732
Mar 20062,82143656.707.08$163,039
Feb 20062,76542757.597.75$162,546
Jan 20062,75941460.598.93$170,866
Dec 20052,50738554.9413.42$142,900
Nov 20052,65242454.6910.59$149,527
Oct 20052,87245358.3413.80$173,802
Sep 20052,76141861.4512.08$174,712
Aug 20052,80645061.519.80$177,006
Jul 20052,77346355.697.84$158,060
Jun 20052,89862552.337.38$156,265
May 20052,07637145.226.65$96,344
Apr 20051,74028249.207.36$87,684
Mar 20051,70630850.377.15$88,135
Feb 20051,58725845.226.31$73,393
Jan 20051,78926643.166.32$78,895
Dec 20041,75025139.866.75$71,450
Nov 20041,63948645.286.33$77,291
Oct 20041,70384449.706.52$90,138
Sep 20041,59782143.245.28$73,392
Aug 20041,67094942.375.55$76,025
Jul 20041,65085538.286.08$68,364
Jun 20041,67283236.106.43$65,711
May 20041,63082537.486.49$66,450
Apr 20041,47571534.475.86$55,032
Mar 20041,71284334.365.53$63,486
Feb 20041,66975732.455.51$58,330
Jan 20041,87179132.036.30$64,911
Dec 20031,69473030.266.30$55,861
Nov 20031,831028.804.60$52,733
Oct 20031,8301,01928.174.76$56,401
Sep 20031,74371126.314.75$49,235
Aug 20031,98385229.765.13$63,385
Jul 20031,9191,05529.415.17$61,893
Jun 20031,97786728.565.98$61,650
May 20031,95285726.595.97$57,022
Apr 20031,83357926.675.41$52,017
Mar 20032,05098531.146.10$69,842
Feb 20031,81263233.487.93$65,675
Jan 20032,059030.315.58$62,408
Dec 20022,0771,02826.914.85$60,882
Nov 20021,8941,14224.664.14$51,430
Oct 20022,0481,37326.464.23$59,997
Sep 20021,99787327.443.64$57,971
Aug 20022,09368025.963.16$56,486
Jul 20021,91793524.583.06$49,983
Jun 20021,7801,12823.733.34$46,005
May 20021,89098324.663.58$50,130
Apr 20022,11981423.653.51$52,973
Mar 20022,01063322.003.10$46,184
Feb 20021,72736818.222.38$32,340
Jan 20021,91165717.172.38$34,373
Dec 20011,96695516.932.36$35,542
Nov 20011,93895618.072.41$37,319
Oct 20011,96394119.782.53$41,208
Sep 20011,87762024.262.25$46,932
Aug 20012,11593124.873.05$55,443
Jul 20012,14797723.933.20$54,501
Jun 20012,08279924.563.82$54,189
May 20012,21538725.524.31$58,194
Apr 20012,15286324.685.34$57,716
Mar 20012,26873024.545.38$59,582
Feb 20012,19367827.755.77$64,766
Jan 20012,25270227.478.40$67,758
Dec 20002,29979426.889.12$69,040
Nov 20002,35882232.215.66$80,602
Oct 20002,44665531.235.15$79,759
Sep 20002,38189831.875.19$80,540
Aug 20002,41777729.644.54$75,168
Jul 20002,48768628.534.09$73,760
Jun 20002,38669629.304.40$72,970
May 20002,60486827.263.68$74,179
Apr 20002,52877824.513.12$64,386
Mar 20002,67076228.422.86$78,061
Feb 20002,59579927.622.73$73,852
Jan 20002,68288925.272.48$69,979
Dec 19992,68591224.282.42$67,402
Nov 19992,5171,17023.192.43$61,217
Oct 19992,5241,17720.982.80$56,253
Sep 19992,42790221.752.62$55,149
Aug 19992,4091,18119.262.88$49,793
Jul 19992,4521,05217.892.37$46,362
Jun 19992,42086715.942.36$40,623
May 19992,56592915.792.32$42,658
Apr 19992,41690415.102.21$38,478
Mar 19992,55686212.471.84$33,458
Feb 19992,2794549.981.82$23,570
Jan 19992,61652310.381.90$28,148
Dec 19982,5435049.201.77$24,289
Nov 19982,42052910.892.19$27,510
Oct 19982,55147912.421.97$32,627
Sep 19982,44439812.592.08$31,599
Aug 19982,69347111.301.91$31,329
Jul 19982,80081711.742.24$34,700
Jun 19982,6261,01911.242.24$31,796
May 19982,71597312.622.21$36,410
Apr 19982,41989513.042.51$33,786
Mar 19982,75098212.802.31$37,468
Feb 19982,4621,10313.952.30$36,881
Jan 19982,7641,07114.702.15$42,939
Dec 19972,7871,07316.322.41$48,071
Nov 19972,7561,19018.193.09$53,807
Oct 19973,0361,41019.253.15$62,884
Sep 19972,5091,28817.742.95$48,316
Aug 19972,8341,24917.862.55$53,806
Jul 19972,8891,23217.582.25$53,557
Jun 19972,7601,18117.242.26$50,248
May 19972,9731,25018.972.31$59,283
Apr 19972,7471,08317.882.08$51,372
Mar 19972,9731,05618.951.94$58,386
Feb 19972,7491,04020.492.21$58,621
Jan 19972,9821,04323.483.54$73,709
Dec 19962,9831,00223.32$69,564
Nov 19963,00694921.97$66,042
Oct 19963,11183823.31$72,517
Sep 19962,97765122.22$66,149
Aug 19963,04480320.26$61,671
Jul 19963,06194819.55$59,843
Jun 19963,05781918.73$57,258
May 19963,19396519.43$62,040
Apr 19963,02875421.51$65,132
Mar 19963,13971019.38$60,834
Feb 19963,0641,08116.98$52,027
Jan 19963,19199617.07$54,470
Dec 19953,2491,12717.19$55,850
Nov 19953,0931,15716.00$49,488
Oct 19953,2101,37915.43$49,530
Sep 19953,1261,57616.18$50,579
Aug 19953,1051,53015.92$49,432
Jul 19953,2451,58515.24$49,454
Jun 19953,1072,12016.41$50,986
May 19953,2612,28317.56$57,263
Apr 19953,2371,63717.73$57,392
Mar 19953,4021,88916.44$55,929
Feb 19953,1162,12416.58$51,663
Jan 19953,5161,84615.92$55,975
Dec 19943,4051,82215.03$51,177
Nov 19943,3532,02315.90$53,313
Oct 19943,5742,73715.58$55,683
Sep 19943,7672,61215.29$57,597
Aug 19943,7512,68216.13$60,504
Jul 19942,3821,09017.56$41,828
Jun 19941,9551,56117.09$33,411
May 19942,4601,21915.88$39,065
Apr 19942,3091,02414.14$32,649
Mar 19942,5601,07112.46$31,898
Feb 19941,7771,04412.50$22,213
Jan 19942,6281,31012.66$33,270
Dec 19932,5741,15912.33$31,737
Nov 19932,5501,14614.49$36,950
Oct 19932,5991,24215.85$41,194
Sep 19932,5281,14715.03$37,996
Aug 19932,7461,16915.66$43,002
Jul 19932,6281,31115.46$40,629
Jun 19932,4581,10516.79$41,270
May 19932,8641,54617.68$50,636
Apr 19932,9251,14318.05$52,796
Mar 19933,0201,18218.14$54,783
Feb 19933,5381,32117.90$63,330
Jan 19934,1441,58616.93$70,158

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                  644 bbl  × $106.41 =    $68,528
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $68,528

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/3568 is the state's own key, not one this site invented.