MineralRecord
Log inSign up

COPE, H. R.

Operated by CITATION OIL & GAS CORP. (P-5 154235) in the NOLLEY (WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 8636District 08Field 65766888Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$61.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$1.1 M
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The NOLLEY (WOLFCAMP) field

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 27 leases and 164 wells, and the rule below applies to all of them.

Discovered
1951-08-21
as the register files it
Field class
Oil
the register's own label
Between wells
1,100 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 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.

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
OilDisposition1,379,863 bbl$59,832,226
Casinghead gasProduction479,081 Mcf$1,753,981
Total$61,586,207

45,093 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 (10)

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 32.0882, -102.0995. A lease has no coordinate of its own — that point is the mean of its wells, and they span 60.1 miles, so treat it as the lease's centre and not as its location.

32.08763, -102.09780 · 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
80.0%
8 of 10 wells
With a plug date
80.0%
8 of 10 wells
Median depth
8,876 ft
10 wells filed one
Completion to plug
13.8 years
median over 6 wells

What the state filed about each well

On the RRC proration schedule
880.0%
A plug date is filed
880.0%
BothOn the schedule and plugged. Neither fact cancels the other.
880.0%
NeitherNo plug date, and not on the schedule.
220.0%

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

Total depth in feet, 10 of 10 wells. Median 8,876 ft, with the middle half between 8,349 and 9,425 ft; the shallowest is 8,330 ft and the deepest 9,500 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, 8 of 10 wells, Apr 1972 – Apr 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 1972 – Apr 2017
8 of 10 wells; 2 filed none
Plug dates filed
Feb 1992 – Feb 2020
8 of 10 wells; 2 filed none

Last completion to plug: a median of 13.8 years across the 6 wells that filed both dates, with the middle half between 3.8 years and 22.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

10 wells

42-0030219319,390 ft—Feb 1992Yes
42-0030220029,416 ft—Feb 1994Yes
42-17331205108,362 ftApr 2017Aug 2019Yes
42-00346036139,428 ftJun 2014——
42-0033818499,500 ftMar 2014——
42-1733108958,350 ftNov 2013May 2014Yes
42-1733113688,330 ftJan 1997Jun 2005Yes
42-1733113778,349 ftDec 1996Feb 2020Yes
42-1733114098,330 ftJun 1981Sep 2000Yes
42-0033030739,450 ftApr 1972Sep 1997Yes

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 20261,337745106.413.05$144,539
Apr 20261,26869698.932.87$127,441
Mar 20261,28868289.753.15$117,746
Feb 20261,43457263.503.75$93,204
Jan 20261,08555259.138.00$68,571
Dec 20251,44971556.664.41$85,256
Nov 20251,23535158.593.93$73,737
Oct 20251,62274459.383.30$98,773
Sep 20251,28748862.743.08$82,248
Aug 20251,04450363.933.01$68,259
Jul 20251,25836266.743.32$85,159
Jun 20251,47835166.483.13$99,356
May 20251,42837260.553.23$87,668
Apr 20251,26435962.363.54$80,095
Mar 20251,47437267.704.27$101,378
Feb 20251,23133670.884.34$88,712
Jan 20251,72235674.324.28$129,502
Dec 20241,49432768.993.12$104,092
Nov 202499732769.052.20$69,562
Oct 20241,48737271.372.28$106,976
Sep 20241,28936069.612.36$90,578
Aug 20241,63637275.632.06$124,498
Jul 20241,26236079.932.15$101,644
Jun 20241,75836078.082.63$138,213
May 20241,86630778.812.20$147,734
Apr 20241,22621084.451.66$103,884
Mar 202490222980.301.55$72,784
Feb 202472829276.091.78$55,914
Jan 20241,30668073.023.30$97,607
Dec 20231,7011,36371.262.61$124,772
Nov 20232,0411,29677.892.81$162,612
Oct 20231,7891,41885.443.09$157,230
Sep 20231,6891,41089.042.74$154,245
Aug 20232,0241,45780.522.67$166,867
Jul 20231,6431,45874.852.64$126,830
Jun 20232,0381,32868.962.26$143,540
May 20232,4551,06170.622.23$175,735
Apr 20231,23192678.122.24$98,238
Mar 20232,22468372.852.39$163,653
Feb 20231,6281,31175.112.47$125,512
Jan 20231,7611,28876.533.39$139,133
Dec 20222,1581,33876.415.73$172,558
Nov 20221,6961,52685.005.65$152,776
Oct 20222,1481,62587.185.86$196,791
Sep 20222,0251,58484.888.16$184,813
Aug 20221,9911,60194.529.13$202,802
Jul 20221,7071,453101.587.54$184,356
Jun 20222,0631,499115.097.98$249,388
May 20221,9431,815109.378.43$227,812
Apr 20222,2861,665104.226.84$249,632
Mar 20222,1091,790108.885.08$238,715
Feb 20221,7321,60391.054.86$165,487
Jan 20222,3751,55581.844.54$201,426
Dec 20211,6781,42971.323.90$125,247
Nov 20212,0021,51777.435.24$162,959
Oct 20212,0331,42679.795.71$170,361
Sep 20211,8251,38069.865.35$134,879
Aug 20212,0101,41966.024.22$138,689
Jul 20211,9951,41670.783.98$146,845
Jun 20212,0141,40569.493.38$144,703
May 20212,6551,54963.483.02$173,214
Apr 20212,3721,44460.362.76$147,157
Mar 20211,7191,27961.302.72$108,850
Feb 202185298757.805.55$54,721
Jan 20212,2481,52250.412.81$117,599
Dec 20202,0961,52344.642.68$97,640
Nov 20202,5011,70138.772.71$101,568
Oct 20202,1801,53336.972.48$84,394
Sep 20202,1241,31537.091.99$81,397
Aug 20202,2021,41339.982.39$91,406
Jul 20201,9521,49538.371.83$77,627
Jun 20202,7791,40034.901.69$99,354
May 20201,1951,31116.921.81$22,599
Apr 20202,1971,47914.751.80$35,074
Mar 20202,7301,26530.341.86$85,176
Feb 20202,4361,15749.881.98$123,799
Jan 20202,4051,25357.252.09$140,311
Dec 20192,1311,40359.012.30$128,983
Nov 20191,08397755.302.75$62,577
Oct 20192,9202,75753.472.42$162,800
Sep 20191,84535055.052.66$102,497
Aug 20192,14295553.112.30$115,962
Jul 20192,1641,67456.272.46$125,886
Jun 20192,5121,32252.782.49$135,877
May 20191,8211,19158.482.74$109,756
Apr 20192,2141,09262.632.75$141,667
Mar 20192,11693256.803.06$123,043
Feb 20191,5451,14450.852.79$81,758
Jan 20192,4081,04446.033.23$114,210
Dec 20182,7451,40946.594.19$133,787
Nov 20182,4591,08752.934.24$134,761
Oct 20182,2641,39861.443.40$143,851
Sep 20182,8711,47459.543.11$175,521
Aug 20182,1471,48559.403.07$132,086
Jul 20181,39478365.142.93$93,101
Jun 20182,5591,12360.183.08$157,456
May 20182,9931,62665.382.90$200,399
Apr 20182,6981,56663.842.90$176,783
Mar 20181,7651,60561.222.79$112,526
Feb 20182,5161,32161.782.77$159,093
Jan 20182,1151,19562.874.01$137,761
Dec 20172,6421,61457.272.92$156,023
Nov 20172,6271,95155.423.12$151,672
Oct 20172,3322,03849.292.98$121,025
Sep 20172,3581,68747.523.09$117,260
Aug 20172,6821,76545.373.00$126,985
Jul 20173,5151,96943.873.09$160,282
Jun 20172,7611,87442.493.09$123,100
May 20172,8372,00745.373.26$135,264
Apr 20172,8332,06747.933.21$142,424
Mar 20172,7652,09046.772.98$135,555
Feb 20172,9991,69550.452.95$156,304
Jan 20173,0321,81149.413.42$156,003
Dec 20162,8791,73648.763.72$146,843
Nov 20163,2391,82042.492.64$142,438
Oct 20162,9222,01546.193.09$141,194
Sep 20162,7421,84541.553.10$119,651
Aug 20163,1891,52241.442.92$136,603
Jul 20163,4082,25541.622.92$148,435
Jun 20162,9512,09745.352.69$139,460
May 20163,6211,97042.521.99$157,887
Apr 20163,7032,33736.561.99$140,035
Mar 20163,2892,14933.011.79$112,425
Feb 20163,7841,64426.472.06$103,555
Jan 20164,2701,25627.352.36$119,754
Dec 20153,5181,20232.362.00$116,248
Nov 20153,2442,08038.792.17$130,343
Oct 20154,2592,28743.552.43$191,029
Sep 20153,2802,02242.992.76$146,585
Aug 20154,1602,17340.162.87$173,308
Jul 20153,9832,03948.152.95$197,786
Jun 20153,8912,21956.152.88$224,877
May 20154,2552,40455.212.96$242,023
Apr 20154,0531,47049.822.71$205,899
Mar 20154,3501,49642.892.93$190,962
Feb 20153,878044.662.98$173,191
Jan 20154,071043.433.10$176,804
Dec 20144,8722,40454.693.59$275,083
Nov 20144,259070.464.25$300,089
Oct 20145,7471,96378.303.90$457,648
Sep 20145,4055,22186.164.05$486,816
Aug 20145,7588,39189.394.04$548,566
Jul 20146,5593,63296.564.18$648,517
Jun 20145,1843,15198.164.74$523,787
May 20144,1342,41994.734.73$403,047
Apr 20143,4411,85995.944.81$339,070
Mar 20144,0481,68495.895.06$396,678
Feb 20146,0522,44897.406.19$604,623
Jan 20144,1131,55890.404.86$379,388
Dec 20132,34943991.824.35$217,597
Nov 20131,73982688.853.74$157,598
Oct 20132,24055697.423.78$220,322
Sep 20131,4070104.113.72$146,483
Aug 20132,122747104.253.52$223,850
Jul 20132,8741,552102.523.72$300,412
Jun 20131,05650794.403.93$101,681
May 20132,05351694.834.15$196,827
Apr 20131,90176893.964.28$181,907
Mar 20132,12470393.623.91$201,600
Feb 20132,10155591.233.42$193,572
Jan 20132,11949291.603.42$195,783
Dec 20122,14459286.773.42$188,060
Nov 20122,17565786.953.62$191,498
Oct 20122,15171789.383.40$194,694
Sep 20122,09862094.672.92$200,427
Aug 20121,98273792.662.91$185,795
Jul 20122,06167285.133.02$177,483
Jun 20122,10168479.822.52$169,425
May 20122,09269791.612.49$193,382
Apr 20122,355793101.652.00$240,969
Mar 20122,219781105.052.22$234,841
Feb 20122,035649101.102.57$207,407
Jan 20122,23667698.092.73$221,177
Dec 20112,16347896.873.24$211,078
Nov 20111,99834595.723.31$192,391
Oct 20112,32867184.983.65$200,282
Sep 20112,14652583.623.99$181,541
Aug 20111,99336383.404.15$167,722
Jul 20112,39579094.144.52$229,034
Jun 20111,74361792.904.64$164,788
May 20111,96766998.134.40$195,969
Apr 20112,091760105.964.33$224,856
Mar 20112,34264596.364.06$228,292
Feb 20111,82446885.644.18$158,164
Jan 20112,15459986.504.59$189,070
Dec 20102,10355585.734.35$182,703
Nov 20102,10664980.843.80$172,712
Oct 20102,28867878.103.51$181,072
Sep 20102,15663472.633.98$159,113
Aug 20102,27469373.684.42$170,611
Jul 20102,32872772.554.74$172,340
Jun 20102,19866170.364.91$157,897
May 20102,18479371.124.24$158,685
Apr 20102,31271481.694.12$191,811
Mar 20102,38771778.394.39$190,264
Feb 20102,24863273.585.44$168,847
Jan 20102,56669874.365.96$194,971
Dec 20092,42657871.445.48$176,483
Nov 20092,02060574.593.75$152,941
Oct 20092,01925972.544.11$147,523
Sep 20092,24763365.543.06$149,208
Aug 20092,41975667.423.22$165,522
Jul 20092,45274461.133.46$152,468
Jun 20092,60180866.163.90$175,229
May 20092,42870054.743.93$135,657
Apr 20092,46186446.773.59$118,201
Mar 20092,80182542.144.06$121,383
Feb 20092,12764932.814.63$72,794
Jan 20092,49371535.865.37$93,239
Dec 20083,05372237.105.98$117,582
Nov 20082,46674955.496.86$141,977
Oct 20082,89079475.246.92$222,940
Sep 20082,828452101.767.88$291,338
Aug 20082,983288114.228.48$343,161
Jul 20082,770583131.0811.39$369,732
Jun 20082,934541131.3313.03$392,373
May 20083,2451,013123.1711.57$411,411
Apr 20082,924753110.3110.45$330,419
Mar 20083,270471101.909.66$337,765
Feb 20083,11079992.538.77$294,776
Jan 20083,24662490.388.21$298,494
Dec 20073,51289688.337.30$316,758
Nov 20073,09190291.677.29$289,929
Oct 20073,77488282.856.92$318,781
Sep 20073,13185775.846.24$242,806
Aug 20073,38698569.066.39$240,129
Jul 20074,0331,14170.906.39$293,228
Jun 20072,81888462.007.55$181,389
May 20073,57798558.747.85$217,842
Apr 20073,88493259.617.81$238,800
Mar 20072,86281656.927.30$168,863
Feb 20073,12683855.108.22$179,128
Jan 20073,65290750.306.73$189,797
Dec 20063,31496456.656.92$194,407
Nov 20063,44687854.207.62$193,461
Oct 20063,42469854.906.01$192,175
Sep 20063,39188260.085.04$208,174
Aug 20063,38190868.717.34$238,973
Jul 20063,56795769.376.34$253,513
Jun 20063,35688366.286.38$228,073
May 20063,60691766.016.42$243,924
Apr 20063,49779264.397.36$231,001
Mar 20063,71693456.707.08$217,313
Feb 20063,48578757.597.75$206,801
Jan 20063,5701,06360.598.93$225,802
Dec 20053,8231,05554.9413.42$224,189
Nov 20053,6181,00554.6910.59$208,510
Oct 20053,81694258.3413.80$235,621
Sep 20053,66187161.4512.08$235,489
Aug 20053,8871,14161.519.80$250,268
Jul 20053,7561,11055.697.84$217,878
Jun 20053,7701,12152.337.38$205,558
May 20053,9991,17645.226.65$188,657
Apr 20053,94581049.207.36$200,056
Mar 20054,1292,42850.377.15$225,350
Feb 20053,7851,13245.226.31$178,303
Jan 20054,3671,37043.166.32$197,141
Dec 20044,8091,45139.866.75$201,483
Nov 20043,28083945.286.33$153,830
Oct 20043,7921,12349.706.52$195,779
Sep 20043,58589443.245.28$159,739
Aug 20044,1521,33542.375.55$183,330
Jul 20044,1421,41738.286.08$167,177
Jun 20043,8611,21936.106.43$147,224
May 20044,2741,26237.486.49$168,386
Apr 20044,0451,18534.475.86$146,373
Mar 20044,3091,24634.365.53$154,948
Feb 20048,56096232.455.51$283,072
Jan 20043,7931,14832.036.30$128,722
Dec 20034,2821,14230.266.30$136,770
Nov 20034,1091,03028.804.60$123,072
Oct 20034,2391,14528.174.76$124,862
Sep 20034,1821,16526.314.75$115,561
Aug 20034,3731,30329.765.13$136,825
Jul 20034,4381,24929.415.17$136,980
Jun 20034,6251,49828.565.98$141,052
May 20034,5511,55226.595.97$130,281
Apr 20033,9701,34926.675.41$113,174
Mar 20034,3731,72431.146.10$146,685
Feb 20034,0951,55033.487.93$149,386
Jan 20034,8502,19230.315.58$159,239
Dec 20024,7881,70026.914.85$137,096
Nov 20023,52792324.664.14$90,794
Oct 20024,0801,06026.464.23$112,440
Sep 20023,9501,15427.443.64$112,583
Aug 20024,3031,45425.963.16$116,307
Jul 20024,5221,53824.583.06$115,860
Jun 20024,2071,54223.733.34$104,980
May 20024,8261,62024.663.58$124,815
Apr 20024,2301,67723.653.51$105,930
Mar 20025,4562,08922.003.10$126,514
Feb 20024,2731,60118.222.38$81,658
Jan 20026,0312,41517.172.38$109,290
Dec 20015,8692,44516.932.36$105,143
Nov 20015,7462,21118.072.41$109,149
Oct 20013,8361,26219.782.53$79,068
Sep 20013,41692724.262.25$84,959
Aug 20013,7471,03524.873.05$96,348
Jul 20013,38394523.933.20$83,976
Jun 20013,40656724.563.82$85,820
May 20013,97988525.524.31$105,356
Apr 20012,56775424.685.34$67,376
Mar 20014,7431,27024.545.38$123,221
Feb 20013,6001,12527.755.77$106,388
Jan 20014,1591,13527.478.40$123,780
Dec 20004,2511,12426.889.12$124,521
Nov 20003,8171,40032.215.66$130,867
Oct 20004,1251,58531.235.15$136,979
Sep 20004,0601,63731.875.19$137,883
Aug 20005,1541,80129.644.54$160,942
Jul 20003,4711,65428.534.09$105,792
Jun 20004,1401,67229.304.40$128,654
May 20004,6901,80127.263.68$134,477
Apr 20004,2801,57524.513.12$109,811
Mar 20003,7971,27328.422.86$111,551
Feb 20004,2241,39227.622.73$120,462
Jan 20004,5951,51425.272.48$119,871
Dec 19994,3781,44424.282.42$109,798
Nov 19993,7561,11023.192.43$89,803
Oct 19995,0041,45920.982.80$109,075
Sep 19994,4151,56021.752.62$100,112
Aug 19994,5371,46519.262.88$91,595
Jul 19994,6431,11817.892.37$85,716
Jun 19994,2771,29715.942.36$71,239
May 19994,6231,39915.792.32$76,244
Apr 19994,6311,39315.102.21$73,004
Mar 19995,1391,35912.471.84$66,582
Feb 19994,3311,1619.981.82$45,334
Jan 19995,5051,47610.381.90$59,946
Dec 19984,3731,3769.201.77$42,672
Nov 19985,1331,14310.892.19$58,397
Oct 19985,2501,34512.421.97$67,854
Sep 19985,3511,24412.592.08$69,960
Aug 19985,4261,58611.301.91$64,339
Jul 19985,3491,49411.742.24$66,140
Jun 19985,3541,23311.242.24$62,938
May 19986,4111,44012.622.21$84,084
Apr 19985,7531,71513.042.51$79,316
Mar 19985,7591,59812.802.31$77,406
Feb 19986,5501,86613.952.30$95,663
Jan 19986,4111,87114.702.15$98,273
Dec 19977,2132,04016.322.41$122,635
Nov 19977,3332,23918.193.09$140,302
Oct 19977,8732,58519.253.15$159,698
Sep 19979,6093,04017.742.95$179,447
Aug 19976,3842,14117.862.55$119,488
Jul 19976,1831,65717.582.25$112,420
Jun 19975,5071,47617.242.26$98,272
May 19976,0931,87318.972.31$119,908
Apr 19975,1851,69217.882.08$96,232
Mar 19976,6311,72618.951.94$129,004
Feb 19975,2001,52520.492.21$109,912
Jan 19975,6041,63723.483.54$137,376
Dec 19965,3951,72823.32—$125,811
Nov 19965,1171,41521.97—$112,420
Oct 19965,9101,69423.31—$137,762
Sep 19965,9181,79722.22—$131,498
Aug 19964,6881,79520.26—$94,979
Jul 19965,1831,80319.55—$101,328
Jun 19964,8741,58218.73—$91,290
May 19965,2281,37919.43—$101,580
Apr 19965,0481,53821.51—$108,582
Mar 19965,6871,56919.38—$110,214
Feb 19964,8581,40416.98—$82,489
Jan 19965,4511,57617.07—$93,049
Dec 19956,2231,83917.19—$106,973
Nov 19954,9401,15416.00—$79,040
Oct 19955,2711,22115.43—$81,332
Sep 19955,1231,54616.18—$82,890
Aug 19956,1561,65515.92—$98,004
Jul 19955,5531,91815.24—$84,628
Jun 19955,5891,68816.41—$91,715
May 19954,7631,36217.56—$83,638
Apr 19955,1671,52117.73—$91,611
Mar 19954,4561,44916.44—$73,257
Feb 19954,88198616.58—$80,927
Jan 19954,8101,39315.92—$76,575
Dec 19945,55497615.03—$83,477
Nov 19944,86630715.90—$77,369
Oct 19944,84430715.58—$75,470
Sep 19945,36630715.29—$82,046
Aug 19946,05131716.13—$97,603
Jul 19946,24031717.56—$109,574
Jun 19946,35630717.09—$108,624
May 19945,57431715.88—$88,515
Apr 19946,07930714.14—$85,957
Mar 19945,39231712.46—$67,184
Feb 19946,84128712.50—$85,513
Jan 19945,15530712.66—$65,262
Dec 19935,91532412.33—$72,932
Nov 19936,40231414.49—$92,765
Oct 19934,47631415.85—$70,945
Sep 19935,90831415.03—$88,797
Aug 19936,24132415.66—$97,734
Jul 19934,25927415.46—$65,844
Jun 19934,28327416.79—$71,912
May 19934,29632417.68—$75,953
Apr 19935,37431418.05—$97,001
Mar 19935,40832418.14—$98,101
Feb 19935,02329417.90—$89,912
Jan 19934,33131416.93—$73,324

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                1,337 bbl  × $106.41 =   $142,270
Casinghead gas       745 Mcf  × $  3.05 =     $2,269

────────────────────────────────────────────────────
Month total                                 $144,539

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. 08/O/8636 is the state's own key, not one this site invented.