WILLIAMS, MAUDE, ETAL -A-

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the LAKE PASTURE (FS-527) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 820District 02Field 51512266OilCasinghead gasSaveExport
Value, all time
$20.2 M
Jan 1993 – May 2026
Value, last 12 filed months
$495 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 6 leases and 37 wells, and the rule below applies to all of them.

Discovered
1954-09-01
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 2023-01-18.

The Commission's schedule remark for this field reads: ON OIL, CASINGHEAD GAS, OR GAS WELL GAS PRODUCTION.

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
OilDisposition465,687 bbl$16,196,478
Casinghead gasProduction1,270,472 Mcf$4,008,605
Total$20,205,084

336,276 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 (28)

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 28.4172, -97.0675. A lease has no coordinate of its own — that point is the mean of its wells, and they span 4.6 miles.

28.40159, -97.08835 · 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
89.3%
25 of 28 wells
With a plug date
32.1%
9 of 28 wells
Median depth
5,945 ft
28 wells filed one
Completion to plug
16.7 years
median over 9 wells

What the state filed about each well

On the RRC proration schedule
2589.3%
A plug date is filed
932.1%
BothOn the schedule and plugged. Neither fact cancels the other.
932.1%
NeitherNo plug date, and not on the schedule.
310.7%

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, 28 of 28 wells. Median 5,945 ft, with the middle half between 5,758 and 6,200 ft; the shallowest is 4,500 ft and the deepest 8,210 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, 28 of 28 wells, Jun 1960 – Dec 2023. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jun 1960 – Dec 2023
28 of 28 wells
Plug dates filed
Jan 1982 – May 2025
9 of 28 wells; 19 filed none

Last completion to plug: a median of 16.7 years across the 9 wells that filed both dates, with the middle half between 11.5 years and 21.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

28 wells

42-39130254D 65 U5,850 ftDec 2023Yes
42-39100330D 226,200 ftOct 2023Yes
42-39100282D 21 L6,200 ftNov 2022Yes
42-39100211D 20 U6,163 ftNov 2022Yes
42-39130424D 888,000 ftAug 2022Yes
42-39132611D201R8,210 ftOct 2021Yes
42-39132679D1966,224 ftNov 2020
42-39104046D 57 U5,600 ftOct 2020Yes
42-39100279D 165,980 ftAug 2017Yes
42-39131779D1316,115 ftJun 2017Yes
42-39100277D 125,760 ftMay 2017Yes
42-39100274D 95,763 ftMay 2017Yes
42-39100208D 55,764 ftAug 2015Yes
42-39100220D 3G6,106 ftOct 2010Yes
42-39130287D 727,764 ftJan 2007Yes
42-39104021D 435,750 ftDec 2006Yes
42-39130345D 777,147 ftNov 2006
42-39100287D 34 D5,400 ftApr 2000Yes
42-39100290D 54 H5,911 ftOct 1998May 2025Yes
42-39100273D 75,760 ftSep 1991Nov 1998Yes
42-39100207D 35,967 ftAug 1991
42-39100213D 35 D5,703 ftJul 1990Oct 1998Yes
42-39100293D 92 F7,800 ftMar 1983May 2024Yes
42-39100331D 73 D6,200 ftMay 1982Jan 1999Yes
42-39100284D 31 D5,923 ftFeb 1982Oct 1998Yes
42-39100214D 36 D5,631 ftJul 1979Oct 1998Yes
42-39100292D 76 D5,400 ftJan 1979Jul 1990Yes
42-39100464D 75 F4,500 ftJun 1960Jan 1982Yes

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 202600106.413.05$0
Apr 20267001,89098.932.87$74,675
Mar 20267091,57889.753.15$68,603
Feb 20268311,26563.503.75$57,513
Jan 20266831,42759.138.00$51,799
Dec 20254121,00256.664.41$27,766
Nov 202549481258.593.93$32,132
Oct 20255981,91559.383.30$41,838
Sep 202555299862.743.08$37,703
Aug 20255951,39163.933.01$42,232
Jul 202540871666.743.32$29,604
Jun 202544049166.483.13$30,787
May 202554325260.553.23$33,693
Apr 202549763462.363.54$33,239
Mar 20256121,09467.704.27$46,102
Feb 202559874570.884.34$45,620
Jan 202560420274.324.28$45,754
Dec 202459437168.993.12$42,138
Nov 202443556169.052.20$31,270
Oct 202432992571.372.28$25,591
Sep 202428495569.612.36$22,027
Aug 202430867175.632.06$24,679
Jul 20243261,36779.932.15$28,992
Jun 20242851,63278.082.63$26,551
May 20242751,65378.812.20$25,307
Apr 20242111,58884.451.66$20,454
Mar 20244931,31180.301.55$41,614
Feb 202453461576.091.78$41,729
Jan 20245791,05873.023.30$45,768
Dec 202346437271.262.61$34,036
Nov 202337565477.892.81$31,045
Oct 20234211,09485.443.09$39,348
Sep 202356473289.042.74$52,221
Aug 20231,1952,14080.522.67$101,941
Jul 20235501,13074.852.64$44,153
Jun 202326068.962.26$1,793
May 2023997870.622.23$7,165
Apr 20231807978.122.24$14,238
Mar 20231538572.852.39$11,349
Feb 20231417875.112.47$10,783
Jan 20231366776.533.39$10,635
Dec 202215421476.415.73$12,993
Nov 202216313685.005.65$14,623
Oct 20221419887.185.86$12,867
Sep 20221407084.888.16$12,455
Aug 20221458894.529.13$14,509
Jul 202215353101.587.54$15,941
Jun 202221460115.097.98$25,108
May 202223561109.378.43$26,216
Apr 202226780104.226.84$28,374
Mar 202232897108.885.08$36,205
Feb 20224291.054.86$374
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20219269.865.35$639
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20202044.642.68$89
Nov 2020822138.772.71$908
Oct 202011036.972.48$407
Sep 20201107337.091.99$4,225
Aug 202043068039.982.39$18,813
Jul 20206871,06738.371.83$28,308
Jun 202092883634.901.69$33,800
May 20205361,29716.921.81$11,423
Apr 20206761,37414.751.80$12,450
Mar 20207211,65730.341.86$24,951
Feb 20206191,16049.881.98$33,173
Jan 20206821,22557.252.09$41,611
Dec 20197031,24959.012.30$44,362
Nov 20197041,03355.302.75$41,773
Oct 201965592853.472.42$37,267
Sep 20196911,05755.052.66$40,848
Aug 20196941,09053.112.30$39,370
Jul 201967092156.272.46$39,967
Jun 201953181752.782.49$30,061
May 20197021,08358.482.74$44,021
Apr 201963842762.632.75$41,132
Mar 201958637956.803.06$34,445
Feb 201967959450.852.79$36,186
Jan 20199101,26946.033.23$45,984
Dec 20187661,18346.594.19$40,639
Nov 20181,0721,27452.934.24$62,139
Oct 20189491,30261.443.40$62,731
Sep 20189471,04059.543.11$59,617
Aug 20181,0231,12059.403.07$64,201
Jul 20189352,24665.142.93$67,491
Jun 20189893,03760.183.08$68,863
May 20181,1013,12065.382.90$81,034
Apr 20181,0003,53863.842.90$74,103
Mar 20181,0262,63361.222.79$70,149
Feb 20181,0091,35361.782.77$66,079
Jan 20189251,07362.874.01$62,457
Dec 201787086157.272.92$52,340
Nov 201786182755.423.12$50,296
Oct 20171,06299549.292.98$55,315
Sep 201747985047.523.09$25,386
Aug 201773881945.373.00$35,944
Jul 20171,03597543.873.09$48,416
Jun 20178271,05242.493.09$38,387
May 20179211,83145.373.26$47,761
Apr 20179522,20047.933.21$52,695
Mar 20171,0092,22546.772.98$53,830
Feb 20179831,43850.452.95$53,838
Jan 20179673,77449.413.42$60,682
Dec 20161,0921,13748.763.72$57,479
Nov 20161,2112,53342.492.64$58,154
Oct 20161,0662,73246.193.09$57,681
Sep 20161,0321,16441.553.10$46,489
Aug 20161,04294541.442.92$45,944
Jul 20161,01187141.622.92$44,625
Jun 201663062245.352.69$30,241
May 201671030442.521.99$30,794
Apr 20167081,18936.561.99$28,252
Mar 20168601,11533.011.79$30,389
Feb 20168571,38426.472.06$25,541
Jan 20167671,97427.352.36$25,645
Dec 20155633,52232.362.00$25,268
Nov 201598910,26538.792.17$60,611
Oct 20151,02910,48443.552.43$70,253
Sep 20151,06012,65842.992.76$80,485
Aug 201577615,21740.162.87$74,875
Jul 20156246,48248.152.95$49,136
Jun 20155766,57556.152.88$51,297
May 20156951,95055.212.96$44,134
Apr 20156971,33349.822.71$38,332
Mar 201543063342.892.93$20,300
Feb 20154374,89944.662.98$34,097
Jan 20155054,81143.433.10$36,849
Dec 20147573,60554.693.59$54,347
Nov 20147871,92470.464.25$63,633
Oct 20147031,84678.303.90$62,246
Sep 20147811,95686.164.05$75,204
Aug 20148362,12189.394.04$83,289
Jul 20148113,24996.564.18$91,890
Jun 20148323,92298.164.74$100,247
May 20148873,07694.734.73$98,564
Apr 20145052,85595.944.81$62,180
Mar 20147342,86095.895.06$84,846
Feb 20147182,50697.406.19$85,450
Jan 20146102,28090.404.86$66,226
Dec 20136652,44991.824.35$71,724
Nov 20137092,41388.853.74$72,015
Oct 20135812,39197.423.78$65,637
Sep 20133991,378104.113.72$46,663
Aug 20131631,762104.253.52$23,200
Jul 20133021,221102.523.72$35,500
Jun 20133151,24494.403.93$34,629
May 201330364994.834.15$31,426
Apr 201311080993.964.28$13,800
Mar 20132091,02993.623.91$23,593
Feb 2013451,27291.233.42$8,455
Jan 20131743,67091.603.42$28,489
Dec 20121411,93286.773.42$18,842
Nov 20121401,98286.953.62$19,358
Oct 20121321,61689.383.40$17,292
Sep 20121451,25394.672.92$17,384
Aug 20121571,56692.662.91$19,102
Jul 201212198585.133.02$13,276
Jun 20121381,67479.822.52$15,232
May 20129453491.612.49$9,940
Apr 2012139713101.652.00$15,553
Mar 20122001,006105.052.22$23,245
Feb 20121651,024101.102.57$19,313
Jan 20122126,02498.092.73$37,265
Dec 20112763,23896.873.24$37,226
Nov 20113461,17395.723.31$37,003
Oct 20113701,81084.983.65$38,046
Sep 20114832,85083.623.99$51,748
Aug 20115143,24083.404.15$56,311
Jul 20113922,61994.144.52$48,734
Jun 20114811,87092.904.64$53,361
May 20116611,77398.134.40$72,674
Apr 20115011,895105.964.33$61,298
Mar 20115091,77896.364.06$56,261
Feb 20113941,46585.644.18$39,866
Jan 20115121,76686.504.59$52,392
Dec 20105442,00785.734.35$55,363
Nov 20105732,89280.843.80$57,297
Oct 20104802,91178.103.51$47,702
Sep 20104436,71972.633.98$58,913
Aug 20104602,99373.684.42$47,120
Jul 201043885372.554.74$35,817
Jun 20104811,03970.364.91$38,945
May 2010359171.124.24$25,536
Apr 2010493581.694.12$40,294
Mar 201051523478.394.39$41,398
Feb 20104171,48073.585.44$38,738
Jan 20105002,86374.365.96$54,255
Dec 20095301,94071.445.48$48,502
Nov 20095133,18074.593.75$50,194
Oct 20091,3014,58772.544.11$113,228
Sep 20091,2733,26665.543.06$93,442
Aug 20091,3323,84467.423.22$102,175
Jul 20091,3914,48961.133.46$100,584
Jun 20091,2633,65266.163.90$97,785
May 20091,0303,38554.743.93$69,671
Apr 20099962,88646.773.59$56,936
Mar 20097803,40342.144.06$46,682
Feb 20099153,38132.814.63$45,685
Jan 20091,4162,69435.865.37$65,247
Dec 20081,2712,12037.105.98$59,826
Nov 20088003,46755.496.86$68,177
Oct 20089393,18275.246.92$92,676
Sep 20088199,576101.767.88$158,772
Aug 20088894,110114.228.48$136,407
Jul 20089944,202131.0811.39$178,152
Jun 20088194,053131.3313.03$160,381
May 20089787,128123.1711.57$202,962
Apr 20081,1171,655110.3110.45$140,519
Mar 20081,3941,207101.909.66$153,713
Feb 20081,0062,50592.538.77$115,055
Jan 20087992390.388.21$72,402
Dec 200799134988.337.30$90,083
Nov 20071,11963291.677.29$107,187
Oct 20079171,16582.856.92$84,038
Sep 200793173375.846.24$75,184
Aug 20071,40690869.066.39$102,899
Jul 20071,32592070.906.39$99,819
Jun 20071,3327,79562.007.55$141,424
May 20071,52979558.747.85$96,051
Apr 20071,5601,71159.617.81$106,346
Mar 20071,81275756.927.30$108,667
Feb 20071,7637,57955.108.22$159,410
Jan 20071,3111,26250.306.73$74,433
Dec 20068771,28156.656.92$58,545
Nov 20063018,84254.207.62$83,668
Oct 200633894254.906.01$24,221
Sep 20063781,46660.085.04$30,095
Aug 200657639568.717.34$42,476
Jul 20066461,14069.376.34$52,044
Jun 20065435,96866.286.38$74,089
May 20066106,85466.016.42$84,303
Apr 200659640664.397.36$41,365
Mar 20066349,75756.707.08$105,056
Feb 20065953,85657.597.75$64,154
Jan 20066901,15160.598.93$52,089
Dec 200560082954.9413.42$44,085
Nov 20056534,71054.6910.59$85,584
Oct 20058143,81858.3413.80$100,161
Sep 20057822,65361.4512.08$80,099
Aug 20056091,66361.519.80$53,752
Jul 200574155055.697.84$45,580
Jun 20051,18577852.337.38$67,754
May 20051,2413,95345.226.65$82,410
Apr 200599259449.207.36$53,179
Mar 20051,11966350.377.15$61,108
Feb 20058401,30845.226.31$46,241
Jan 200572211,15743.166.32$101,698
Dec 20046269,39939.866.75$88,406
Nov 200460720,77545.286.33$158,999
Oct 200458668549.706.52$33,587
Sep 200436456143.245.28$18,704
Aug 20044674,73342.375.55$46,058
Jul 20048292,13538.286.08$44,724
Jun 20047552,08136.106.43$40,643
May 20047365,73537.486.49$64,832
Apr 200493014,67134.475.86$118,007
Mar 20041,0459,03734.365.53$85,882
Feb 20049855,25732.455.51$60,927
Jan 20041,1134,72932.036.30$65,440
Dec 20031,2644,63630.266.30$67,463
Nov 20031,5292,45728.804.60$55,326
Oct 20031,48146128.174.76$43,914
Sep 20031,1037,81826.314.75$66,150
Aug 20031,1888,40229.765.13$78,455
Jul 20031,0686,17729.415.17$63,350
Jun 20031,0899628.565.98$31,676
May 20031,2062,04326.595.97$44,270
Apr 20031,2545,71926.675.41$64,368
Mar 20031,1323,63331.146.10$57,397
Feb 20031,0211,01333.487.93$42,212
Jan 20031,20121330.315.58$37,591
Dec 20021,4717,71826.914.85$77,046
Nov 20021,3578,04624.664.14$66,750
Oct 20021,3988,37626.464.23$72,414
Sep 20021,3645,30327.443.64$56,706
Aug 20021,2536,43125.963.16$52,877
Jul 20021,3808,42724.583.06$59,722
Jun 20021,5456,88123.733.34$59,633
May 20021,6826,02424.663.58$63,068
Apr 20021,4368,77223.653.51$64,771
Mar 20021,5467,68422.003.10$57,853
Feb 20021,5307,92018.222.38$46,692
Jan 20021,5648,25717.172.38$46,470
Dec 20011,6525,42016.932.36$40,783
Nov 20011,4615,04518.072.41$38,536
Oct 20011,4687,52619.782.53$48,069
Sep 20011,4544,47424.262.25$45,346
Aug 20011,3746,63724.873.05$54,435
Jul 20011,3185,79423.933.20$50,064
Jun 20011,1661,91824.563.82$35,972
May 20011,2426,20425.524.31$58,418
Apr 20011,5952,43024.685.34$52,329
Mar 20011,3881,90124.545.38$44,282
Feb 20011,33381127.755.77$41,668
Jan 20011,49586427.478.40$48,324
Dec 2000027326.889.12$2,490
Nov 20001,4991,32132.215.66$55,757
Oct 20001,2091,14031.235.15$43,623
Sep 20009542,08631.875.19$41,223
Aug 20001,5815,24029.644.54$70,654
Jul 20001,7054,06528.534.09$65,268
Jun 20001,1663,71529.304.40$50,500
May 20001,5192,02827.263.68$48,870
Apr 200088450024.513.12$23,225
Mar 200025514728.422.86$7,667
Feb 200038016327.622.73$10,940
Jan 200048025425.272.48$12,760
Dec 1999394824.282.42$1,063
Nov 19991,36061223.192.43$33,028
Oct 19991,5423,69120.982.80$42,700
Sep 19991,3371,38421.752.62$32,704
Aug 19991,4202,39319.262.88$34,231
Jul 19991,1251,55817.892.37$23,822
Jun 19991,1291,84815.942.36$22,361
May 19991,5813,21915.792.32$32,435
Apr 19991,8202,43715.102.21$32,863
Mar 19991,6122,20412.471.84$24,153
Feb 19992,0163,7089.981.82$26,860
Jan 19992,2325,69410.381.90$33,986
Dec 19981,7055,2139.201.77$24,930
Nov 19982,1603,10710.892.19$30,313
Oct 19982,3877,16612.421.97$43,758
Sep 19982,1008,96112.592.08$45,101
Aug 19982,4188,55611.301.91$43,643
Jul 19982,0464,52911.742.24$34,153
Jun 19981,9383,29911.242.24$29,164
May 19982,4267,49012.622.21$47,142
Apr 19982,5207,38713.042.51$51,368
Mar 19982,1088,18012.802.31$45,874
Feb 19982,3244,30913.952.30$42,327
Jan 19982,6813,13214.702.15$46,160
Dec 19972,7033,83516.322.41$53,360
Nov 19972,9104,68718.193.09$67,408
Oct 19973,5832,70619.253.15$77,496
Sep 19973,0063,02117.742.95$62,253
Aug 19973,1624,43417.862.55$67,801
Jul 19973,1392,47517.582.25$60,745
Jun 19972,6687,08317.242.26$61,984
May 19973,0525,20418.972.31$69,910
Apr 19972,9003,89017.882.08$59,954
Mar 19973,6483,17018.951.94$75,277
Feb 19972,9034,31720.492.21$69,005
Jan 19973,2578,85223.483.54$107,808
Dec 19963,2243,72923.32$75,184
Nov 19963,0664,56221.97$67,360
Oct 19963,7155,67623.31$86,597
Sep 19963,5904,20322.22$79,770
Aug 19963,1008,82020.26$62,806
Jul 19963,3445,55019.55$65,375
Jun 19963,2808,62218.73$61,434
May 19963,3416,18919.43$64,916
Apr 19963,3305,52721.51$71,628
Mar 19963,6175,50819.38$70,097
Feb 19963,2696,32116.98$55,508
Jan 19962,8206,88317.07$48,137
Dec 19953,0027,29117.19$51,604
Nov 19953,3308,00416.00$53,280
Oct 19953,3245,83415.43$51,289
Sep 19953,5543,54316.18$57,504
Aug 19952,7903,04015.92$44,417
Jul 19952,7902,64215.24$42,520
Jun 19952,8472,69916.41$46,719
May 19952,1593,34517.56$37,912
Apr 19952,8202,17917.73$49,999
Mar 19952,6122,44216.44$42,941
Feb 19952,6692,73816.58$44,252
Jan 19953,8137,69415.92$60,703
Dec 19943,5369,25215.03$53,146
Nov 19943,4288,82915.90$54,505
Oct 19943,2857,56915.58$51,180
Sep 19943,4505,26815.29$52,751
Aug 19943,7575,50516.13$60,600
Jul 19943,3485,20717.56$58,791
Jun 19943,3005,78117.09$56,397
May 19943,2844,87415.88$52,150
Apr 19943,3309,27314.14$47,086
Mar 19943,2829,62712.46$40,894
Feb 19942,96511,80312.50$37,063
Jan 19943,2248,48212.66$40,816
Dec 19933,5879,46912.33$44,228
Nov 19933,2998,47114.49$47,803
Oct 19933,5347,48715.85$56,014
Sep 19933,66710,67315.03$55,115
Aug 19933,2608,74415.66$51,052
Jul 19933,5239,53115.46$54,466
Jun 19933,09512,58116.79$51,965
May 19932,9909,83917.68$52,863
Apr 19933,0768,32618.05$55,522
Mar 19933,8347,81818.14$69,549
Feb 19933,48513,95617.90$62,382
Jan 19933,02514,87016.93$51,213

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                  700 bbl  × $ 98.93 =    $69,251
Casinghead gas     1,890 Mcf  × $  2.87 =     $5,424

────────────────────────────────────────────────────
Month total                                  $74,675

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. 02/O/820 is the state's own key, not one this site invented.