BURNETT, S. B. ESTATE "D"

Operated by HIGH RIVER RES OPERATING, LLC (P-5 385674) in the CAPTAIN BURK (STRAWN REEF) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 60638District 8AField 15505500OilCasinghead gasSave
Value, all time
$109.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$2.3 M
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
OilDisposition2,744,162 bbl$109,459,644
Casinghead gasProduction171,785 Mcf$431,153
Total$109,890,797

56,715 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 (34)

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 33.5429, -100.2027. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.0 miles. 1 well has no surveyed location and is left out of it.

33.54219, -100.20296 · centre of 33 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
58.8%
20 of 34 wells
With a plug date
55.9%
19 of 34 wells
Median depth
5,553 ft
34 wells filed one
Completion to plug
22.3 years
median over 16 wells

What the state filed about each well

On the RRC proration schedule
2058.8%
A plug date is filed
1955.9%
BothOn the schedule and plugged. Neither fact cancels the other.
1955.9%
NeitherNo plug date, and not on the schedule.
1441.2%

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, 34 of 34 wells. Median 5,553 ft, with the middle half between 5,526 and 5,649 ft; the shallowest is 5,370 ft and the deepest 6,613 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
20s

Last completion by decade, 31 of 34 wells, Aug 1970 – Apr 2025. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Aug 1970 – Apr 2025
31 of 34 wells; 3 filed none
Plug dates filed
Nov 1983 – Dec 2024
19 of 34 wells; 15 filed none

Last completion to plug: a median of 22.3 years across the 16 wells that filed both dates, with the middle half between 16.3 years and 33.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

34 wells

42-26930052D 45,530 ftFeb 2014Yes
42-26930073D 105,571 ftNov 1983Yes
42-26930120D 155,665 ftDec 1983Yes
42-26931966346,070 ftApr 2025
42-26932301D 365,700 ftAug 2009
42-26932302D 375,700 ftMar 1998
42-26931888275,550 ftNov 1997Dec 2024Yes
42-26930056D 65,514 ftJul 1997Jan 2003Yes
42-2693213620R5,400 ftDec 1993
42-26930405195,575 ftJun 1992Dec 1992Yes
42-26931891335,570 ftApr 1989
42-26931890325,550 ftApr 1989
42-26931834D 305,550 ftOct 1988
42-26931833D 295,600 ftOct 1988
42-26931822D 286,060 ftJul 1988
42-26930053D 55,570 ftNov 1986Jan 2003Yes
42-26931506D 266,050 ftNov 1985
42-26930085D 145,520 ftNov 1982Nov 1996Yes
42-26930236D 165,516 ftAug 1981Jan 1999Yes
42-26930925D 245,600 ftMay 1981Aug 2009Yes
42-26930803D 225,380 ftMay 1978
42-26930792D 215,550 ftDec 1977
42-26930406D 205,370 ftJun 1977Oct 1993Yes
42-26930079D 115,550 ftFeb 1977Jul 2009Yes
42-26903015D 18W5,500 ftMar 1976Dec 1992Yes
42-26930259D 175,570 ftJun 1975Nov 1991Yes
42-26930145D 136,613 ftJun 1973Aug 2002Yes
42-2698010614W5,520 ftApr 1972Yes
42-26930082D 126,305 ftJan 1972Jun 2010Yes
42-26930068D 85,525 ftAug 1971
42-26930059D 75,550 ftApr 1971May 2006Yes
42-26930049D 35,550 ftJan 1971
42-26930041D 25,555 ftNov 1970Sep 2009Yes
42-26930035D 16,600 ftAug 1970Mar 2008Yes

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 20262,732124106.413.05$291,090
Apr 20262,72712198.932.87$270,129
Mar 20262,92712489.753.15$263,089
Feb 20262,11311263.503.75$134,596
Jan 20262,92212559.138.00$173,778
Dec 20253,11512456.664.41$177,043
Nov 20252,46411958.593.93$144,833
Oct 20252,60512659.383.30$155,101
Sep 20252,29612062.743.08$144,420
Aug 20252,72612563.933.01$174,650
Jul 20252,76312466.743.32$184,814
Jun 20252,65312166.483.13$176,750
May 20252,96212660.553.23$179,756
Apr 20252,42111862.363.54$151,392
Mar 20252,57212567.704.27$174,658
Feb 20252,07711370.884.34$147,708
Jan 20251,90312574.324.28$141,966
Dec 20242,19912568.993.12$152,099
Nov 20242,15012169.052.20$148,724
Oct 20242,68112471.372.28$191,626
Sep 20242,30111969.612.36$160,454
Aug 20242,27812575.632.06$172,543
Jul 20242,65912379.932.15$212,798
Jun 20242,49312178.082.63$194,972
May 20242,99012478.812.20$235,915
Apr 20242,50012184.451.66$211,326
Mar 20242,70512480.301.55$217,403
Feb 20242,01411876.091.78$153,456
Jan 20242,18212573.023.30$159,742
Dec 20232,34512671.262.61$167,434
Nov 20232,28612077.892.81$178,393
Oct 20232,86212485.443.09$244,912
Sep 20232,88811989.042.74$257,473
Aug 20232,67313880.522.67$215,599
Jul 20232,12813974.852.64$159,648
Jun 20232,62713668.962.26$181,465
May 20232,47413970.622.23$175,023
Apr 20231,73213578.122.24$135,606
Mar 20232,57913972.852.39$188,213
Feb 20232,42512675.112.47$182,452
Jan 20232,08514076.533.39$160,039
Dec 20222,02013776.415.73$155,133
Nov 20222,52213485.005.65$215,127
Oct 20222,07213887.185.86$181,446
Sep 20222,23613684.888.16$190,902
Aug 20222,54314094.529.13$241,642
Jul 20222,996139101.587.54$305,382
Jun 20223,390134115.097.98$391,224
May 20223,594140109.378.43$394,256
Apr 20222,362137104.226.84$247,104
Mar 20222,974139108.885.08$324,515
Feb 20222,80212591.054.86$255,729
Jan 20223,41914081.844.54$280,446
Dec 20212,98413971.323.90$213,361
Nov 20213,44813577.435.24$267,686
Oct 20213,00513979.795.71$240,563
Sep 20212,79213469.865.35$195,766
Aug 20213,19613766.024.22$211,578
Jul 20212,56613770.783.98$182,167
Jun 20212,74813269.493.38$191,405
May 20213,26013763.483.02$207,358
Apr 20213,08813660.362.76$186,767
Mar 20213,13613761.302.72$192,609
Feb 20211,91612757.805.55$111,449
Jan 20212,19313950.412.81$110,940
Dec 20203,19213944.642.68$142,863
Nov 20201,75413438.772.71$68,365
Oct 20202,45114136.972.48$90,963
Sep 20203,07813737.091.99$114,436
Aug 20203,63914139.982.39$145,824
Jul 20203,14514138.371.83$120,931
Jun 20201,50313734.901.69$52,686
May 202017614116.921.81$3,234
Apr 20203,24613714.751.80$48,126
Mar 20203,24614130.341.86$98,745
Feb 2020013249.881.98$261
Jan 20203,25914157.252.09$186,873
Dec 20193,46514159.012.30$204,795
Nov 20193,44613755.302.75$190,941
Oct 20193,48614153.472.42$186,737
Sep 20193,46513755.052.66$191,112
Aug 20193,57814153.112.30$190,352
Jul 20193,38414156.272.46$190,765
Jun 20193,14613752.782.49$166,387
May 20193,60314158.482.74$211,090
Apr 20193,39513762.632.75$213,006
Mar 20193,09514156.803.06$176,228
Feb 20193,14012850.852.79$160,026
Jan 20193,65414146.033.23$168,649
Dec 20183,64014146.594.19$170,178
Nov 20183,16113752.934.24$167,892
Oct 20183,33414161.443.40$205,320
Sep 20183,21413759.543.11$191,787
Aug 20183,44014159.403.07$204,768
Jul 20183,70514165.142.93$241,757
Jun 20183,58313760.183.08$216,046
May 20183,53914165.382.90$231,789
Apr 20183,68813763.842.90$235,839
Mar 20183,57414161.222.79$219,193
Feb 20183,36912861.782.77$208,491
Jan 20183,36814162.874.01$212,311
Dec 20173,83014157.272.92$219,756
Nov 20173,26913755.423.12$181,595
Oct 20173,42414149.292.98$169,190
Sep 20173,71313747.523.09$176,865
Aug 20173,67114145.373.00$166,977
Jul 20174,00014143.873.09$175,915
Jun 20173,63913742.493.09$155,044
May 20173,86514145.373.26$175,815
Apr 20173,57013747.933.21$171,550
Mar 20174,25414146.772.98$199,380
Feb 20173,30712850.452.95$167,216
Jan 20173,70414149.413.42$183,497
Dec 20163,78614148.763.72$185,130
Nov 20163,28013742.492.64$139,729
Oct 20163,81214146.193.09$176,512
Sep 20163,52613741.553.10$146,930
Aug 20163,73614141.442.92$155,232
Jul 20163,71714141.622.92$155,114
Jun 20163,47113745.352.69$157,778
May 20163,74614142.521.99$159,561
Apr 20163,98613736.561.99$146,001
Mar 20164,52314133.011.79$149,557
Feb 20164,24213226.472.06$112,558
Jan 20163,89514127.352.36$106,862
Dec 20153,79714132.362.00$123,153
Nov 20153,99713738.792.17$155,341
Oct 20154,77214143.552.43$208,163
Sep 20153,81013742.992.76$164,170
Aug 20154,45514140.162.87$179,318
Jul 20154,54714148.152.95$219,353
Jun 20154,30113756.152.88$241,896
May 20154,53714155.212.96$250,904
Apr 20154,28213749.822.71$213,700
Mar 20154,96514142.892.93$213,363
Feb 20152,94812844.662.98$132,039
Jan 20153,93214143.433.10$171,204
Dec 20144,01714154.693.59$220,196
Nov 20144,28313770.464.25$302,363
Oct 20144,41214178.303.90$346,010
Sep 20144,48913786.164.05$387,326
Aug 20145,37714189.394.04$481,219
Jul 20144,71514196.564.18$455,870
Jun 20144,02013798.164.74$395,252
May 20144,89814194.734.73$464,654
Apr 20145,35213795.944.81$514,130
Mar 20145,01514195.895.06$481,601
Feb 20143,61512897.406.19$352,894
Jan 20144,16014190.404.86$376,749
Dec 20133,85614191.824.35$354,672
Nov 20134,29213788.853.74$381,856
Oct 20134,37714197.423.78$426,940
Sep 20134,574137104.113.72$476,708
Aug 20134,613141104.253.52$481,402
Jul 20134,681141102.523.72$480,420
Jun 20134,42513794.403.93$418,259
May 20134,33214194.834.15$411,389
Apr 20134,10313793.964.28$386,105
Mar 20134,65714193.623.91$436,540
Feb 20133,91112891.233.42$357,238
Jan 20134,68814191.603.42$429,903
Dec 20124,97014186.773.42$431,729
Nov 20124,55613786.953.62$396,641
Oct 20124,91414189.383.40$439,693
Sep 20124,62713794.672.92$438,438
Aug 20125,18914192.662.91$481,223
Jul 20125,04714185.133.02$430,077
Jun 20124,56813779.822.52$364,963
May 20124,43314191.612.49$406,458
Apr 20124,677137101.652.00$475,691
Mar 20124,679141105.052.22$491,842
Feb 20124,417132101.102.57$446,898
Jan 20124,74814198.092.73$466,117
Dec 20114,58614196.873.24$444,703
Nov 20114,86713795.723.31$466,323
Oct 20115,65014184.983.65$480,651
Sep 20115,11813783.623.99$428,513
Aug 20115,07114183.404.15$423,506
Jul 20115,46914194.144.52$515,489
Jun 20115,47813792.904.64$509,542
May 20115,84014198.134.40$573,700
Apr 20115,091137105.964.33$540,036
Mar 20115,86814196.364.06$566,013
Feb 20115,11612885.644.18$438,669
Jan 20115,53814186.504.59$479,684
Dec 20105,76114185.734.35$494,504
Nov 20105,52513780.843.80$447,161
Oct 20105,74314178.103.51$449,023
Sep 20105,52213772.633.98$401,608
Aug 20106,16514173.684.42$454,860
Jul 20105,86014172.554.74$425,811
Jun 20105,71313770.364.91$402,639
May 20105,96314171.124.24$424,686
Apr 20105,81413781.694.12$475,510
Mar 20105,68114178.394.39$445,952
Feb 20105,43212873.585.44$400,383
Jan 20105,77414174.365.96$430,196
Dec 20095,44614171.445.48$389,835
Nov 20095,15013774.593.75$384,652
Oct 20095,79314172.544.11$420,804
Sep 20095,38113765.543.06$353,091
Aug 20095,45914167.423.22$368,500
Jul 20095,03114161.133.46$308,034
Jun 20095,48113766.163.90$363,157
May 20095,81514154.743.93$318,867
Apr 20095,47513746.773.59$256,557
Mar 20095,97914142.144.06$252,527
Feb 20095,26512832.814.63$173,338
Jan 20096,08114135.865.37$218,822
Dec 20085,28914137.105.98$197,065
Nov 20085,96813755.496.86$332,104
Oct 20085,77214175.246.92$435,261
Sep 20086,216137101.767.88$633,619
Aug 20085,755141114.228.48$658,532
Jul 20086,161141131.0811.39$809,190
Jun 20085,429137131.3313.03$714,776
May 20086,177141123.1711.57$762,453
Apr 20085,967137110.3110.45$659,652
Mar 20086,569141101.909.66$670,744
Feb 20085,88713292.538.77$545,882
Jan 20086,11814190.388.21$554,102
Dec 20076,06714788.337.30$536,972
Nov 20076,34319791.677.29$582,899
Oct 20076,28720382.856.92$522,283
Sep 20075,97219775.846.24$454,147
Aug 20075,52120369.066.39$382,577
Jul 20075,71920370.906.39$406,774
Jun 20075,94919762.007.55$370,325
May 20076,23120358.747.85$367,602
Apr 20076,03619759.617.81$361,344
Mar 20076,63220356.927.30$378,976
Feb 20075,27118455.108.22$291,944
Jan 20076,07620350.306.73$306,988
Dec 20065,96420356.656.92$339,265
Nov 20066,06519754.207.62$330,224
Oct 20066,61520354.906.01$364,384
Sep 20066,57119760.085.04$395,778
Aug 20066,90520368.717.34$475,933
Jul 20066,94820369.376.34$483,270
Jun 20066,49819766.286.38$431,945
May 20067,59520366.016.42$502,650
Apr 20066,73719764.397.36$435,245
Mar 20066,42020356.707.08$365,452
Feb 20065,28118457.597.75$305,559
Jan 20065,34720360.598.93$325,788
Dec 20056,62920354.9413.42$366,921
Nov 20057,00919754.6910.59$385,408
Oct 20057,34620358.3413.80$431,366
Sep 20057,08919761.4512.08$437,999
Aug 20057,74220361.519.80$478,199
Jul 20057,50820355.697.84$419,713
Jun 20056,94119752.337.38$364,677
May 20057,05720345.226.65$320,468
Apr 20056,76019749.207.36$334,042
Mar 20057,19740650.377.15$365,418
Feb 20056,51318445.226.31$295,679
Jan 20056,78420343.166.32$294,081
Dec 20046,17620339.866.75$247,546
Nov 20047,31319945.286.33$332,392
Oct 20047,68222149.706.52$383,235
Sep 20047,20319743.245.28$312,499
Aug 20047,26420342.375.55$308,902
Jul 20047,57320338.286.08$291,130
Jun 20046,75019736.106.43$244,942
May 20048,04820337.486.49$302,957
Apr 20047,96119734.475.86$275,570
Mar 20047,81920334.365.53$269,783
Feb 20047,67319032.455.51$250,036
Jan 20046,98420332.036.30$224,976
Dec 20037,56920330.266.30$230,317
Nov 20037,54319728.804.60$218,144
Oct 20038,11220328.174.76$229,481
Sep 20038,10419726.314.75$214,152
Aug 20038,34819529.765.13$249,437
Jul 20038,03919729.415.17$237,446
Jun 20037,87370428.565.98$229,065
May 20038,47566926.595.97$229,346
Apr 20039,06890026.675.41$246,710
Mar 20039,02683531.146.10$286,160
Feb 20037,59265533.487.93$259,372
Jan 20037,82066030.315.58$240,708
Dec 20027,23463826.914.85$197,764
Nov 20027,22164324.664.14$180,730
Oct 20028,50567826.464.23$227,910
Sep 20028,29675227.443.64$230,376
Aug 20028,14673325.963.16$213,789
Jul 20028,55279724.583.06$212,648
Jun 20028,66874223.733.34$208,169
May 20029,17277724.663.58$228,966
Apr 20028,93987723.653.51$214,488
Mar 20029,91390022.003.10$220,878
Feb 20027,79467218.222.38$143,603
Jan 20029,82183917.172.38$170,620
Dec 20018,77690116.932.36$150,708
Nov 20019,03580718.072.41$165,204
Oct 20019,17781319.782.53$183,577
Sep 20018,37971824.262.25$204,891
Aug 20019,62382324.873.05$241,837
Jul 20019,93089723.933.20$240,493
Jun 20019,26973124.563.82$230,442
May 20018,91575625.524.31$230,767
Apr 20019,58886124.685.34$241,226
Mar 20019,84388724.545.38$246,316
Feb 200110,32283327.755.77$291,239
Jan 20019,38884227.478.40$264,960
Dec 20009,63086326.889.12$266,727
Nov 200010,77590532.215.66$352,183
Oct 200010,74385031.235.15$339,878
Sep 20009,26980131.875.19$299,557
Aug 200010,44584229.644.54$313,413
Jul 20009,34884728.534.09$270,162
Jun 200010,27084429.304.40$304,622
May 200010,53192027.263.68$290,460
Apr 20009,88578224.513.12$244,718
Mar 200010,44484428.422.86$299,232
Feb 200010,86794627.622.73$302,726
Jan 200011,7281,00025.272.48$298,847
Dec 199911,29493924.282.42$276,494
Nov 199911,6511,01623.192.43$272,660
Oct 199912,9451,06920.982.80$274,583
Sep 199912,3091,08821.752.62$270,570
Aug 199912,0541,07919.262.88$235,263
Jul 199912,3701,09917.892.37$223,907
Jun 199912,0531,03415.942.36$194,567
May 199911,47897015.792.32$183,489
Apr 199911,28193815.102.21$172,414
Mar 199911,47996512.471.84$144,917
Feb 199911,2869029.981.82$114,274
Jan 199912,2211,05810.381.90$128,864
Dec 199812,1661,0719.201.77$113,826
Nov 199812,2061,11210.892.19$135,354
Oct 199813,9111,18812.421.97$175,114
Sep 199813,2511,13012.592.08$169,183
Aug 199815,5981,23811.301.91$178,619
Jul 199816,8151,50211.742.24$200,768
Jun 199818,3351,55911.242.24$209,573
May 199821,9051,77612.622.21$280,360
Apr 199815,7111,35513.042.51$208,266
Mar 199814,8591,14112.802.31$192,830
Feb 199811,16891613.952.30$157,900
Jan 199812,50498714.702.15$185,936
Dec 199712,0471,04216.322.41$199,119
Nov 199711,8261,02318.193.09$218,274
Oct 199712,4691,23319.253.15$243,912
Sep 199712,5741,15817.742.95$226,485
Aug 199711,0831,03717.862.55$200,592
Jul 199711,5581,10317.582.25$205,668
Jun 199711,9031,14217.242.26$207,785
May 199712,3561,10718.972.31$236,949
Apr 199712,5691,10417.882.08$227,033
Mar 199712,1031,07218.951.94$231,431
Feb 199711,0661,10620.492.21$229,182
Jan 199712,3161,06923.483.54$292,964
Dec 199610,01185923.32$233,457
Nov 199610,95091621.97$240,572
Oct 199610,38492823.31$242,051
Sep 199610,64294122.22$236,465
Aug 199611,6321,01120.26$235,664
Jul 199611,2901,05119.55$220,720
Jun 199611,33898718.73$212,361
May 199611,40396919.43$221,560
Apr 199611,9511,01021.51$257,066
Mar 199612,8771,05619.38$249,556
Feb 199612,4231,11816.98$210,943
Jan 199612,6331,09317.07$215,645
Dec 199513,1591,09417.19$226,203
Nov 199513,0881,07816.00$209,408
Oct 199514,0761,21315.43$217,193
Sep 199513,6981,18416.18$221,634
Aug 199513,9851,20015.92$222,641
Jul 199513,7131,22015.24$208,986
Jun 199513,2771,11816.41$217,876
May 199515,1091,29817.56$265,314
Apr 199514,5611,34717.73$258,167
Mar 199515,5571,37616.44$255,757
Feb 199513,8231,23216.58$229,185
Jan 199515,2721,28015.92$243,130
Dec 199415,5171,29515.03$233,221
Nov 199413,4361,16315.90$213,632
Oct 199413,3181,20015.58$207,494
Sep 199413,9251,17415.29$212,913
Aug 199414,3171,24616.13$230,933
Jul 199414,8641,27617.56$261,012
Jun 199414,9331,31017.09$255,205
May 199416,3521,35415.88$259,670
Apr 199417,1251,43314.14$242,148
Mar 199417,4821,40612.46$217,826
Feb 199414,8041,14712.50$185,050
Jan 199416,1371,23612.66$204,294
Dec 199314,6181,15012.33$180,240
Nov 199312,7231,08814.49$184,356
Oct 199313,5921,16015.85$215,433
Sep 199312,8991,10515.03$193,872
Aug 199314,3931,15415.66$225,394
Jul 199315,7301,41615.46$243,186
Jun 199315,1521,40616.79$254,402
May 199314,7171,46417.68$260,197
Apr 199314,1761,29418.05$255,877
Mar 199316,3681,54418.14$296,916
Feb 199315,45154217.90$276,573
Jan 199317,5181,57316.93$296,580

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                2,732 bbl  × $106.41 =   $290,712
Casinghead gas       124 Mcf  × $  3.05 =       $378

────────────────────────────────────────────────────
Month total                                 $291,090

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/60638 is the state's own key, not one this site invented.