HEARD, CLEMENT

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the TOM OCONNOR (5500 SAND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2585District 02Field 90534725NGPA filingOilCasinghead gasSaveExport
Value, all time
$54.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$63 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 28 leases and 351 wells, and the rule below applies to all of them.

Discovered
1959-12-01
as the register files it
Field class
Oil and gas
the register's own label
Between wells
300 ft
minimum
From a lease line
150 ft
minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 2005-05-10.

The Commission's schedule remark for this field reads: FIELD

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
OilDisposition1,339,882 bbl$50,763,158
Casinghead gasProduction986,384 Mcf$4,094,563
Total$54,857,721

224,496 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 (21)

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 28.3763, -97.1542. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

28.37677, -97.15546 · 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
71.4%
15 of 21 wells
With a plug date
9.5%
2 of 21 wells
Median depth
6,100 ft
21 wells filed one
Completion to plug
18.5 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
1571.4%
A plug date is filed
29.5%
BothOn the schedule and plugged. Neither fact cancels the other.
29.5%
NeitherNo plug date, and not on the schedule.
628.6%

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, 21 of 21 wells. Median 6,100 ft, with the middle half between 5,934 and 6,200 ft; the shallowest is 5,922 ft and the deepest 7,922 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, 20 of 21 wells, Aug 1974 – Aug 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 1974 – Aug 2025
20 of 21 wells; 1 filed none
Plug dates filed
Sep 1986 – Feb 1993
2 of 21 wells; 19 filed none

Last completion to plug: a median of 18.5 years across the 1 well that filed both dates, with the middle half between 18.5 years and 18.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

21 wells

42-391008458 U5,922 ftSep 1986Yes
42-39131689276,100 ftAug 2025Yes
42-391008425 U5,935 ftApr 2021Yes
42-39132472326,400 ftNov 2020
42-39100848115,925 ftNov 2020Yes
42-39132492336,202 ftSep 2020Yes
42-39132710346,200 ftJul 2020
42-39131616256,120 ftOct 2019
42-39132533366,200 ftNov 2017Yes
42-3913251835 U6,200 ftNov 2017Yes
42-39131356237,922 ftJun 2016Yes
42-3913020421 U7,810 ftMay 2016Yes
42-39131712296,100 ftJan 2016
42-3910084365,925 ftOct 2015Yes
42-39131617266,104 ftOct 2015
42-391008522G5,934 ftOct 2011Yes
42-39100850136,000 ftDec 2010Yes
42-3910084035,980 ftMay 2010Yes
42-3910084475,925 ftOct 2009Yes
42-39130191207,810 ftApr 2002
42-391008392 U5,930 ftAug 1974Feb 1993Yes

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 202603398.932.87$95
Mar 202603589.753.15$110
Feb 202643363.503.75$378
Jan 2026184159.138.00$1,392
Dec 2025321156.664.41$1,862
Nov 2025273558.593.93$1,719
Oct 202571459.383.30$4,229
Sep 20251914662.743.08$12,125
Aug 20251995663.933.01$12,891
Jul 20252157566.743.32$14,598
Jun 202519716166.483.13$13,600
May 20252566760.553.23$15,717
Apr 20253457862.363.54$21,791
Mar 20253972267.704.27$26,971
Feb 20254001370.884.34$28,408
Jan 202544723974.324.28$34,244
Dec 202444825668.993.12$31,707
Nov 20243992569.052.20$27,606
Oct 20244712271.372.28$33,665
Sep 2024464069.612.36$32,299
Aug 2024416975.632.06$31,481
Jul 2024452379.932.15$36,135
Jun 20244201378.082.63$32,828
May 20243782378.812.20$29,841
Apr 20243842384.451.66$32,467
Mar 20244094980.301.55$32,918
Feb 20243905176.091.78$29,766
Jan 2024347073.023.30$25,338
Dec 20233714971.262.61$26,565
Nov 202337322177.892.81$29,673
Oct 202332524385.443.09$28,518
Sep 20233216189.042.74$28,749
Aug 2023351680.522.67$28,279
Jul 2023440074.852.64$32,934
Jun 2023471068.962.26$32,480
May 2023509070.622.23$35,946
Apr 2023514078.122.24$40,154
Mar 2023550072.852.39$40,068
Feb 2023399075.112.47$29,969
Jan 2023554076.533.39$42,398
Dec 2022549076.415.73$41,949
Nov 2022552085.005.65$46,920
Oct 20225821887.185.86$50,844
Sep 2022549084.888.16$46,599
Aug 2022489094.529.13$46,220
Jul 20223750101.587.54$38,093
Jun 20223240115.097.98$37,289
May 20222844109.378.43$31,095
Apr 20223600104.226.84$37,519
Mar 20224550108.885.08$49,540
Feb 2022283091.054.86$25,767
Jan 20223001881.844.54$24,634
Dec 20214609471.323.90$33,174
Nov 20215962577.435.24$46,279
Oct 2021888079.795.71$70,854
Sep 20211,5124769.865.35$105,880
Aug 20211,554066.024.22$102,595
Jul 20211,336070.783.98$94,562
Jun 202196412969.493.38$67,424
May 20217331663.483.02$46,579
Apr 20217282160.362.76$44,000
Mar 2021903261.302.72$55,359
Feb 2021730057.805.55$42,194
Jan 20216442350.412.81$32,529
Dec 20207255744.642.68$32,517
Nov 202081424838.772.71$32,230
Oct 202086457736.972.48$33,372
Sep 202062127637.091.99$23,582
Aug 202056140739.982.39$23,400
Jul 202027314638.371.83$10,741
Jun 20201972634.901.69$6,919
May 20202243516.921.81$3,854
Apr 20202371614.751.80$3,525
Mar 20206073730.341.86$18,485
Feb 202086240149.881.98$43,791
Jan 20208151,79057.252.09$50,408
Dec 20199653,66559.012.30$65,390
Nov 20199162,40555.302.75$57,270
Oct 20198081,02453.472.42$45,680
Sep 20191,0442,32255.052.66$63,642
Aug 20191,6484,87153.112.30$98,750
Jul 20191,5178,17056.272.46$105,460
Jun 20191,5334,28652.782.49$91,589
May 20191,6262,32358.482.74$101,454
Apr 20191,67793762.632.75$107,608
Mar 20191,75263956.803.06$101,470
Feb 20191,95346050.852.79$100,594
Jan 20192,19445246.033.23$102,449
Dec 20182,35138646.594.19$111,149
Nov 20182,19526152.934.24$117,287
Oct 20181,70778161.443.40$107,532
Sep 20181,65532959.543.11$99,561
Aug 20182,0051,13859.403.07$122,587
Jul 20182,15181065.142.93$142,491
Jun 20182,12683460.183.08$130,509
May 20182,05267365.382.90$136,112
Apr 20182,0271,86963.842.90$134,825
Mar 20182,0842,17761.222.79$133,649
Feb 20182,1001,23561.782.77$133,154
Jan 20182,42517662.874.01$153,165
Dec 20172,2772357.272.92$130,471
Nov 20172,26832055.423.12$126,690
Oct 20172,2641049.292.98$111,622
Sep 20171,315047.523.09$62,489
Aug 20172,19443845.373.00$100,858
Jul 20172,90727543.873.09$128,379
Jun 20172,69318742.493.09$115,003
May 20172,84530845.373.26$130,083
Apr 20172,925047.933.21$140,195
Mar 20173,195046.772.98$149,430
Feb 20172,9797250.452.95$150,503
Jan 20172,83212649.413.42$140,360
Dec 20163,0008948.763.72$146,611
Nov 20163,23115342.492.64$137,690
Oct 20162,72316746.193.09$126,291
Sep 20162,39731641.553.10$100,575
Aug 20162,67821241.442.92$111,596
Jul 20162,45014541.622.92$102,393
Jun 20162,49622945.352.69$113,809
May 20162,72639842.521.99$116,702
Apr 20162,52645536.561.99$93,256
Mar 20162,64569233.011.79$88,553
Feb 20162,77136226.472.06$74,095
Jan 20162,86882127.352.36$80,381
Dec 20152,98396132.362.00$98,453
Nov 20153,1151,43538.792.17$123,941
Oct 20152,86495943.552.43$127,054
Sep 20152,5256842.992.76$108,737
Aug 20152,75460340.162.87$112,333
Jul 20153,197048.152.95$153,936
Jun 20152,820056.152.88$158,343
May 20153,24713055.212.96$179,651
Apr 20152,7558849.822.71$137,492
Mar 20151,560042.892.93$66,908
Feb 20151,676044.662.98$74,850
Jan 20151,978043.433.10$85,905
Dec 20142,248054.693.59$122,943
Nov 20142,323070.464.25$163,679
Oct 20142,225078.303.90$174,218
Sep 20141,775086.164.05$152,934
Aug 20141,940089.394.04$173,417
Jul 20141,579096.564.18$152,468
Jun 20141,825098.164.74$179,142
May 20141,835094.734.73$173,830
Apr 20141,963095.944.81$188,330
Mar 20142,582095.895.06$247,588
Feb 20142,024097.406.19$197,138
Jan 20141,958090.404.86$177,003
Dec 20132,051091.824.35$188,323
Nov 20132,036088.853.74$180,899
Oct 20131,939097.423.78$188,897
Sep 20131,8690104.113.72$194,582
Aug 20132,0850104.253.52$217,361
Jul 20131,8020102.523.72$184,741
Jun 20132,020094.403.93$190,688
May 20132,226094.834.15$211,092
Apr 20132,228093.964.28$209,343
Mar 20131,52130793.623.91$143,597
Feb 20131,49434091.233.42$137,460
Jan 20131,63881991.603.42$152,842
Dec 20121,47976586.773.42$130,949
Nov 20121,37181486.953.62$122,159
Oct 20121,46795689.383.40$134,371
Sep 20121,49979594.672.92$144,230
Aug 20121,2671,17792.662.91$120,823
Jul 20121,4121,11185.133.02$123,560
Jun 20121,22991379.822.52$100,399
May 20121,1241,51891.612.49$106,747
Apr 20121,1711,187101.652.00$121,402
Mar 20121,520785105.052.22$161,420
Feb 20121,815761101.102.57$185,452
Jan 20121,67456898.092.73$165,756
Dec 20111,86164596.873.24$182,365
Nov 20111,81468595.723.31$175,904
Oct 20111,8051,29084.983.65$158,096
Sep 20111,7621,14283.623.99$151,890
Aug 20111,80881783.404.15$154,177
Jul 20112,07397694.144.52$199,561
Jun 20112,2991,14192.904.64$218,871
May 20112,2721,24998.134.40$228,453
Apr 20112,037963105.964.33$220,013
Mar 20112,1191,14796.364.06$208,841
Feb 20111,8701,61885.644.18$166,910
Jan 20112,2181,53886.504.59$198,915
Dec 20102,7891,61785.734.35$246,131
Nov 20102,6231,77680.843.80$218,784
Oct 20103,0191,05678.103.51$239,489
Sep 20102,90291672.633.98$214,417
Aug 20102,71872373.684.42$203,457
Jul 20101,81722572.554.74$132,889
Jun 20101,51329570.364.91$107,903
May 20101,47562871.124.24$107,562
Apr 20101,70244581.694.12$140,871
Mar 20101,89645178.394.39$150,607
Feb 20101,83351873.585.44$137,691
Jan 20101,53054574.365.96$117,021
Dec 20091,9832,26671.445.48$154,092
Nov 20091,8142,14774.593.75$143,361
Oct 20091,6782,23972.544.11$130,925
Sep 20091,5772,30665.543.06$110,424
Aug 20091,6523,12167.423.22$121,423
Jul 20091,2932,09961.133.46$86,313
Jun 20091,5781,82066.163.90$111,489
May 20091,9122,44454.743.93$114,257
Apr 20092,2971,83646.773.59$114,017
Mar 20092,6422,65742.144.06$122,119
Feb 20091,9392,57032.814.63$75,525
Jan 20092,9863,95335.865.37$128,310
Dec 20083,3441,91337.105.98$135,497
Nov 20083,2221,88155.496.86$191,693
Oct 20083,2202,34875.246.92$258,526
Sep 20083,0313,182101.767.88$333,499
Aug 20083,1074,585114.228.48$393,776
Jul 20083,4683,635131.0811.39$495,986
Jun 20083,8742,609131.3313.03$542,775
May 20084,1442,699123.1711.57$541,655
Apr 20084,9792,201110.3110.45$572,245
Mar 20084,8932,628101.909.66$523,994
Feb 20083,0883,38692.538.77$315,430
Jan 20082,8893,32890.388.21$288,416
Dec 20073,3907,75588.337.30$356,065
Nov 20073,3495,54491.677.29$347,428
Oct 20072,7346,95682.856.92$274,661
Sep 20072,6704,79475.846.24$232,427
Aug 20073,0534,48469.066.39$239,484
Jul 20073,7305,05170.906.39$296,722
Jun 20073,5064,39962.007.55$250,578
May 20073,3803,28658.747.85$224,324
Apr 20072,6952,04959.617.81$176,642
Mar 20072,4222,42656.927.30$155,575
Feb 20072,3601,45555.108.22$141,990
Jan 20072,6656,04050.306.73$174,680
Dec 20062,9854,01656.656.92$196,885
Nov 20062,62120,49854.207.62$298,201
Oct 20062,4562,94554.906.01$152,545
Sep 20062,2076,92160.085.04$167,459
Aug 20062,5529,82768.717.34$247,477
Jul 20062,61810,10669.376.34$245,711
Jun 20062,2405,35066.286.38$182,621
May 20062,8054,24966.016.42$212,458
Apr 20062,4971,70564.397.36$173,331
Mar 20063,4031,58256.707.08$204,155
Feb 20063,0925,69757.597.75$222,226
Jan 20063,4426,93560.598.93$270,503
Dec 20053,4343,79654.9413.42$239,589
Nov 20053,3215,78654.6910.59$242,890
Oct 20053,6585,42758.3413.80$288,277
Sep 20053,8619,47961.4512.08$351,755
Aug 20053,9687,37061.519.80$316,274
Jul 20054,4425,95855.697.84$294,107
Jun 20052,8685,82752.337.38$193,092
May 20053,8218,99045.226.65$232,580
Apr 20054,66110,51849.207.36$306,739
Mar 20055,70614,49850.377.15$391,143
Feb 20055,71813,79145.226.31$345,616
Jan 20056,4955,10843.166.32$312,618
Dec 20046,7985,82339.866.75$310,280
Nov 20047,4116,91045.286.33$379,313
Oct 20048,0345,17249.706.52$432,986
Sep 20049,83412,86443.245.28$493,194
Aug 20049,36210,88642.375.55$457,092
Jul 20046,5589,85138.286.08$310,976
Jun 20044,9879,62936.106.43$241,974
May 20045,3578,69437.486.49$257,244
Apr 20045,0665,77734.475.86$208,469
Mar 20045,7479,48334.365.53$249,909
Feb 20045,4216,89832.455.51$213,917
Jan 20048,8517,78132.036.30$332,515
Dec 20039,8924,56030.266.30$328,067
Nov 20038,2196,45728.804.60$266,378
Oct 20038,3637,78528.174.76$272,640
Sep 20036,9756,39926.314.75$213,903
Aug 20036,5226,60729.765.13$227,987
Jul 20037,1835,69929.415.17$240,721
Jun 20036,9734,34528.565.98$225,145
May 20038,2399,51626.595.97$275,911
Apr 20038,1455,09426.675.41$244,772
Mar 20038,4827,62531.146.10$310,612
Feb 20035,3034,70433.487.93$214,828
Jan 20038,9861,83930.315.58$282,631
Dec 20028,9152,41626.914.85$251,629
Nov 20026,21427124.664.14$154,358
Oct 20026,0511,79026.464.23$167,680
Sep 20025,20991927.443.64$146,276
Aug 20027,7552,84525.963.16$210,322
Jul 20028,1735,55724.583.06$217,907
Jun 20028,4407,37523.733.34$224,901
May 20025,3861,77824.663.58$139,191
Apr 20024,01014,78023.653.51$146,749
Mar 20023,2662,58322.003.10$79,866
Feb 20023,0991,82618.222.38$60,802
Jan 20023,5243,52117.172.38$68,872
Dec 20013,0664,68816.932.36$62,992
Nov 20012,66045718.072.41$49,166
Oct 20012,30946719.782.53$46,853
Sep 20013,19090724.262.25$79,431
Aug 20013,01099124.873.05$77,884
Jul 20013,03371523.933.20$74,866
Jun 20013,9541,34824.563.82$102,265
May 20013,10611225.524.31$79,748
Apr 20013,0122,02324.685.34$85,130
Mar 20012,7074,99824.545.38$93,301
Feb 20013,5871,55227.755.77$108,490
Jan 20013,5701,29327.478.40$108,928
Dec 20003,7191,11226.889.12$110,111
Nov 20003,55839932.215.66$116,861
Oct 20004,17998331.235.15$135,568
Sep 20003,9333,99331.875.19$146,054
Aug 20004,2204,13029.644.54$143,834
Jul 20004,3687,21828.534.09$154,139
Jun 20003,9491,64629.304.40$122,944
May 20004,4844,07727.263.68$137,236
Apr 20002,8761,77424.513.12$76,019
Mar 20002,9361,09028.422.86$86,558
Feb 20003,97883027.622.73$112,135
Jan 20004,6391,11325.272.48$119,988
Dec 19993,77126124.282.42$92,192
Nov 19994,32920723.192.43$100,893
Oct 19994,12134420.982.80$87,423
Sep 19994,82686721.752.62$107,236
Aug 19993,5242,28519.262.88$74,443
Jul 19994,0382,27117.892.37$77,627
Jun 19994,5021,80915.942.36$76,035
May 19995,2013,87015.792.32$91,106
Apr 19994,8785,08115.102.21$84,877
Mar 19995,0165,33112.471.84$72,350
Feb 19994,0858669.981.82$42,343
Jan 19995,1281,94210.381.90$56,918
Dec 19985,0532,6899.201.77$51,256
Nov 19984,8844,30310.892.19$62,592
Oct 19985,0092,59212.421.97$67,316
Sep 19984,7362,65012.592.08$65,145
Aug 19984,9382,03111.301.91$59,673
Jul 19984,8991,97711.742.24$61,937
Jun 19985,2413,55311.242.24$66,858
May 19986,0113,94412.622.21$84,561
Apr 19985,0432,29213.042.51$71,503
Mar 19985,0313,92012.802.31$73,450
Feb 19984,8502,41913.952.30$73,219
Jan 19985,4853,81014.702.15$88,839
Dec 19975,1321,83616.322.41$88,181
Nov 19975,1133,47418.193.09$103,734
Oct 19975,6551,97319.253.15$115,073
Sep 19975,4672,35017.742.95$103,929
Aug 19975,3003,86717.862.55$104,537
Jul 19975,8785,20417.582.25$115,028
Jun 19975,9735,31617.242.26$114,974
May 19976,5334,83618.972.31$135,095
Apr 19976,5965,66417.882.08$129,733
Mar 19977,2915,81718.951.94$149,444
Feb 19976,3763,90520.492.21$139,258
Jan 19977,4803,98323.483.54$189,729
Dec 19967,4375,68523.32$173,431
Nov 19966,5555,52121.97$144,013
Oct 19966,7712,97623.31$157,832
Sep 19966,7953,47622.22$150,985
Aug 19967,0984,18420.26$143,805
Jul 19967,3213,62319.55$143,126
Jun 19967,1635,72018.73$134,163
May 19966,9592,00119.43$135,213
Apr 19966,5926,04721.51$141,794
Mar 19967,3145,47819.38$141,745
Feb 19965,2163,17816.98$88,568
Jan 19966,2772,97217.07$107,148
Dec 19956,9095,86917.19$118,766
Nov 19956,9144,56716.00$110,624
Oct 19956,1275,68315.43$94,540
Sep 19955,6364,61816.18$91,190
Aug 19956,0633,60215.92$96,523
Jul 19956,3774,04215.24$97,185
Jun 19956,2114,19616.41$101,923
May 19956,6385,86517.56$116,563
Apr 19956,5913,28817.73$116,858
Mar 19956,7716,31216.44$111,315
Feb 19956,2524,52116.58$103,658
Jan 19957,0564,10315.92$112,332
Dec 19946,5364,96415.03$98,236
Nov 19946,8804,01415.90$109,392
Oct 19946,8286,35715.58$106,380
Sep 19946,7896,69415.29$103,804
Aug 19946,7625,71016.13$109,071
Jul 19946,2345,00417.56$109,469
Jun 19947,0526,58417.09$120,519
May 19947,7024,88215.88$122,308
Apr 19947,6605,47814.14$108,312
Mar 19947,7038,16212.46$95,979
Feb 19946,5497,37112.50$81,863
Jan 19947,5478,39012.66$95,545
Dec 19937,3986,44012.33$91,217
Nov 19937,7486,88014.49$112,269
Oct 19938,3803,00415.85$132,823
Sep 19937,7543,61215.03$116,543
Aug 19938,2261,47615.66$128,819
Jul 19938,1161,36115.46$125,473
Jun 19938,3442,59516.79$140,096
May 19939,0263,74117.68$159,580
Apr 19939,2812,73918.05$167,522
Mar 199310,1513,37918.14$184,139
Feb 19939,5593,84117.90$171,106
Jan 19939,9294,29116.93$168,098

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                    0 bbl  × $ 98.93 =         $0
Casinghead gas        33 Mcf  × $  2.87 =        $95

────────────────────────────────────────────────────
Month total                                      $95

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/2585 is the state's own key, not one this site invented.