HEARD, CLEMENT

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the TOM OCONNOR (4500 GRETA MASS.) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2523District 02Field 90534350OilCasinghead gasSave
Value, all time
$19.1 M
Jan 1993 – May 2026
Value, last 12 filed months
$159 k
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
OilDisposition540,089 bbl$18,026,845
Casinghead gasProduction276,856 Mcf$1,093,236
Total$19,120,080

41,361 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 (18)

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 28.3765, -97.1527. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

28.37854, -97.15244 · 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
50.0%
9 of 18 wells
With a plug date
11.1%
2 of 18 wells
Median depth
5,910 ft
18 wells filed one
Completion to plug
12.6 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
950.0%
A plug date is filed
211.1%
BothOn the schedule and plugged. Neither fact cancels the other.
211.1%
NeitherNo plug date, and not on the schedule.
950.0%

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

0k
2k
4k
6k
8k
10k
12k
15k
20k+

Total depth in feet, 18 of 18 wells. Median 5,910 ft, with the middle half between 4,531 and 6,075 ft; the shallowest is 4,385 ft and the deepest 7,810 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

80s
90s
00s
10s
20s

Last completion by decade, 18 of 18 wells, Dec 1989 – Mar 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
Dec 1989 – Mar 2023
18 of 18 wells
Plug dates filed
Mar 2000 – Sep 2016
2 of 18 wells; 16 filed none

Last completion to plug: a median of 12.6 years across the 2 wells that filed both dates, with the middle half between 11.4 years and 13.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

18 wells

42-3913320741H4,385 ftMar 2023
42-39103795154,515 ftJan 2022Yes
42-39130062174,497 ftFeb 2020Yes
42-39132533366,200 ftNov 2017Yes
42-39132518356,200 ftNov 2017
42-39132631374,800 ftSep 2017
42-391008533G5,980 ftNov 2016Yes
42-39130204217,810 ftMay 2016
42-39131712296,100 ftJan 2016
42-39133060394,677 ftJul 2014
42-391008522G5,934 ftOct 2011
42-39131717284,580 ftFeb 2011Yes
42-39100850136,000 ftDec 2010Yes
42-3910084475,925 ftOct 2009
42-39130191207,810 ftApr 2002Yes
42-39130078184,500 ftNov 2001Sep 2016Yes
42-3910085114 F5,894 ftDec 1997
42-39130056164,500 ftDec 1989Mar 2000Yes

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 20261173106.413.05$12,459
Apr 2026271798.932.87$26,830
Mar 2026265389.753.15$23,793
Feb 2026244363.503.75$15,505
Jan 2026271459.138.00$16,056
Dec 2025303256.664.41$17,177
Nov 2025188958.593.93$11,050
Oct 2025104159.383.30$6,179
Sep 2025981262.743.08$6,185
Aug 2025851263.933.01$5,470
Jul 20251261166.743.32$8,446
Jun 20251429366.483.13$9,731
May 2025188960.553.23$11,412
Apr 20252353362.363.54$14,772
Mar 20252384767.704.27$16,313
Feb 20252572370.884.34$18,316
Jan 202534521474.324.28$26,556
Dec 202443721068.993.12$30,804
Nov 20243851669.052.20$26,619
Oct 20243401371.372.28$24,295
Sep 2024304069.612.36$21,161
Aug 2024232775.632.06$17,561
Jul 2024243379.932.15$19,429
Jun 20242431778.082.63$19,018
May 20242414578.812.20$19,092
Apr 20242282984.451.66$19,303
Mar 20242466480.301.55$19,853
Feb 20243146476.091.78$24,006
Jan 20243405773.023.30$25,015
Dec 202337711571.262.61$27,165
Nov 202326231277.892.81$21,283
Oct 20231229585.443.09$10,717
Sep 20231244089.042.74$11,150
Aug 2023260680.522.67$20,951
Jul 2023336074.852.64$25,150
Jun 2023269068.962.26$18,550
May 2023309070.622.23$21,822
Apr 2023316078.122.24$24,686
Mar 2023409072.852.39$29,796
Feb 2023242075.112.47$18,177
Jan 2023278076.533.39$21,275
Dec 2022239076.415.73$18,262
Nov 2022211085.005.65$17,935
Oct 20221772087.185.86$15,548
Sep 2022176084.888.16$14,939
Aug 2022184094.529.13$17,392
Jul 20221870101.587.54$18,995
Jun 20221650115.097.98$18,990
May 20221632109.378.43$17,844
Apr 20221340104.226.84$13,965
Mar 20221590108.885.08$17,312
Feb 202290091.054.86$8,195
Jan 202258181.844.54$4,751
Dec 20211522771.323.90$10,946
Nov 2021181677.435.24$14,046
Oct 2021239179.795.71$19,076
Sep 20213832169.865.35$26,869
Aug 2021429066.024.22$28,323
Jul 2021242070.783.98$17,129
Jun 20211614369.493.38$11,333
May 2021123563.483.02$7,823
Apr 2021121860.362.76$7,326
Mar 2021139161.302.72$8,523
Feb 2021122057.805.55$7,052
Jan 20211851150.412.81$9,357
Dec 20201362244.642.68$6,130
Nov 20201988938.772.71$7,917
Oct 202018013236.972.48$6,982
Sep 202019028137.091.99$7,607
Aug 202024245939.982.39$10,770
Jul 202040611038.371.83$15,779
Jun 202028713734.901.69$10,248
May 202023717716.921.81$4,331
Apr 202033010714.751.80$5,061
Mar 20204086730.341.86$12,503
Feb 202036612349.881.98$18,500
Jan 202039542757.252.09$23,508
Dec 201953317859.012.30$31,863
Nov 201955017655.302.75$30,899
Oct 20195747853.472.42$30,880
Sep 201960933655.052.66$34,418
Aug 20196861,08553.112.30$38,934
Jul 201966836756.272.46$38,491
Jun 201969534752.782.49$37,547
May 201998232858.482.74$58,326
Apr 201997831462.632.75$62,116
Mar 20191,04217156.803.06$59,709
Feb 20191,10712150.852.79$56,629
Jan 201996016846.033.23$44,731
Dec 201890718846.594.19$43,044
Nov 20181,07512752.934.24$57,438
Oct 20181,23321361.443.40$76,479
Sep 201896711459.543.11$57,929
Aug 201893332759.403.07$56,423
Jul 20181,04022765.142.93$68,411
Jun 20181,01934760.183.08$62,391
May 20181,10321065.382.90$72,723
Apr 20181,47947763.842.90$95,803
Mar 20181,6881,09361.222.79$106,385
Feb 20181,57956661.782.77$99,116
Jan 20181,7887962.874.01$112,728
Dec 20171,9921057.272.92$114,111
Nov 20172,24016455.423.12$124,652
Oct 20172,636649.292.98$129,946
Sep 20171,244047.523.09$59,115
Aug 20174637945.373.00$21,244
Jul 20176795643.873.09$29,961
Jun 20176745342.493.09$28,802
May 20177059545.373.26$32,296
Apr 2017703047.933.21$33,695
Mar 2017802046.772.98$37,510
Feb 20177002850.452.95$35,398
Jan 20178539049.413.42$42,454
Dec 20168007148.763.72$39,272
Nov 201643314042.492.64$18,768
Oct 201644613946.193.09$21,030
Sep 201655832541.553.10$24,193
Aug 201658522341.442.92$24,895
Jul 201668416241.622.92$28,942
Jun 201666224745.352.69$30,685
May 201659525242.521.99$25,801
Apr 201654223536.561.99$20,283
Mar 201664633233.011.79$21,920
Feb 20161,57014126.472.06$41,849
Jan 20161,50526227.352.36$41,781
Dec 20151,36021232.362.00$44,434
Nov 20151,24724438.792.17$48,900
Oct 20151,13012343.552.43$49,510
Sep 2015933642.992.76$40,126
Aug 20151,0136340.162.87$40,863
Jul 20151,328048.152.95$63,943
Jun 20151,088056.152.88$61,091
May 20151,1862755.212.96$65,559
Apr 20158642049.822.71$43,099
Mar 2015786042.892.93$33,712
Feb 20151,601044.662.98$71,501
Jan 20151,483043.433.10$64,407
Dec 20141,538054.693.59$84,113
Nov 20141,380070.464.25$97,235
Oct 20141,674078.303.90$131,074
Sep 20141,931086.164.05$166,375
Aug 20142,076089.394.04$185,574
Jul 20142,049096.564.18$197,851
Jun 20142,060098.164.74$202,210
May 20142,619094.734.73$248,098
Apr 20142,592095.944.81$248,676
Mar 20142,584095.895.06$247,780
Feb 20141,390097.406.19$135,386
Jan 20141,106090.404.86$99,982
Dec 20131,347091.824.35$123,682
Nov 20131,432088.853.74$127,233
Oct 2013769097.423.78$74,916
Sep 20133610104.113.72$37,584
Aug 20132930104.253.52$30,545
Jul 20132680102.523.72$27,475
Jun 2013234094.403.93$22,090
May 2013256094.834.15$24,276
Apr 2013223093.964.28$20,953
Mar 20133478893.623.91$32,830
Feb 20132589391.233.42$23,855
Jan 20133147591.603.42$29,019
Dec 20124511686.773.42$39,188
Nov 20123405686.953.62$29,766
Oct 20123116489.383.40$28,015
Sep 20122477894.672.92$23,611
Aug 201221115192.662.91$19,990
Jul 20121825185.133.02$15,648
Jun 201223817679.822.52$19,441
May 201215268191.612.49$15,619
Apr 2012134427101.652.00$14,474
Mar 2012292225105.052.22$31,175
Feb 2012191186101.102.57$19,788
Jan 201225418298.092.73$25,412
Dec 201127020696.873.24$26,822
Nov 201132624695.723.31$32,019
Oct 201150219184.983.65$43,357
Sep 201150219883.623.99$42,766
Aug 201147919283.404.15$40,745
Jul 201132822294.144.52$31,881
Jun 201130612992.904.64$29,026
May 201124518598.134.40$24,857
Apr 2011243157105.964.33$26,429
Mar 20113534196.364.06$34,181
Feb 20113475785.644.18$29,955
Jan 201137732686.504.59$34,106
Dec 201038837085.734.35$34,872
Nov 20103917780.843.80$31,901
Oct 20103553978.103.51$27,862
Sep 20104315072.633.98$31,503
Aug 20104883773.684.42$36,119
Jul 20104392672.554.74$31,973
Jun 2010381070.364.91$26,807
May 2010318071.124.24$22,616
Apr 20103192481.694.12$26,158
Mar 201027412878.394.39$22,041
Feb 201018522973.585.44$14,859
Jan 201037922574.365.96$29,524
Dec 200943331471.445.48$32,655
Nov 200944728874.593.75$34,422
Oct 200936019572.544.11$26,916
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 200925066.163.90$1,654
May 200926262454.743.93$16,792
Apr 200913840946.773.59$7,922
Mar 200916549442.144.06$8,958
Feb 200921455032.814.63$9,569
Jan 200920566635.865.37$10,928
Dec 200835542937.105.98$15,735
Nov 200837341855.496.86$23,565
Oct 200846248275.246.92$38,097
Sep 2008385620101.767.88$44,061
Aug 2008410666114.228.48$52,480
Jul 2008286686131.0811.39$45,302
Jun 2008280588131.3313.03$44,436
May 2008414678123.1711.57$58,840
Apr 2008379718110.3110.45$49,314
Mar 2008374716101.909.66$45,030
Feb 200844178792.538.77$47,708
Jan 20084031,03990.388.21$44,949
Dec 20074091,06888.337.30$43,925
Nov 20076471,02891.677.29$66,806
Oct 20075241,41082.856.92$53,173
Sep 200752076475.846.24$44,207
Aug 200753880769.066.39$42,309
Jul 200752773270.906.39$42,040
Jun 200727544462.007.55$20,402
May 200713045658.747.85$11,214
Apr 200744513259.617.81$27,557
Mar 200744295256.927.30$32,110
Feb 200761248555.108.22$37,706
Jan 20077251,91150.306.73$49,323
Dec 200675692156.656.92$49,199
Nov 20066963,12554.207.62$61,528
Oct 200666646554.906.01$39,360
Sep 20067741,06960.085.04$51,887
Aug 20069072,20168.717.34$78,475
Jul 20067591,46569.376.34$61,944
Jun 20067942,25666.286.38$67,028
May 20066531,56066.016.42$53,128
Apr 200663034364.397.36$43,090
Mar 200663018656.707.08$37,038
Feb 200652666257.597.75$35,424
Jan 20066281,55660.598.93$51,951
Dec 20058531,41354.9413.42$65,820
Nov 20059651,98854.6910.59$73,826
Oct 20059781,30858.3413.80$75,101
Sep 20051,0492,85961.4512.08$98,995
Aug 20051,0851,50761.519.80$81,502
Jul 20051,3341,30855.697.84$84,550
Jun 20057241,77652.337.38$50,996
May 20058672,72845.226.65$57,350
Apr 20051,1061,83549.207.36$67,922
Mar 200550686850.377.15$31,698
Feb 20054561,06445.226.31$27,336
Jan 200530242043.166.32$15,690
Dec 200427441539.866.75$13,723
Nov 200418045.286.33$815
Oct 200454923649.706.52$28,823
Sep 20041,61975243.245.28$73,979
Aug 20042,0291,02342.375.55$91,647
Jul 20042,23261138.286.08$89,158
Jun 20042,4021,80036.106.43$98,292
May 20042,8921,62937.486.49$118,972
Apr 20042,9521,35034.475.86$109,664
Mar 20043,2222,16334.365.53$122,670
Feb 20043,1111,50732.455.51$109,255
Jan 20041,9051,30732.036.30$69,251
Dec 20032,5461,36430.266.30$85,637
Nov 20032,4442,15028.804.60$80,267
Oct 20031,9462,67928.174.76$67,570
Sep 20032,3352,02726.314.75$71,061
Aug 20032,1241,67129.765.13$71,782
Jul 20032,2972,58429.415.17$80,916
Jun 20032,1821,47328.565.98$71,131
May 20032,4511,42826.595.97$73,701
Apr 20032,6231,39526.675.41$77,499
Mar 20032,18176331.146.10$72,568
Feb 20031,82585733.487.93$67,893
Jan 20032,51433330.315.58$78,058
Dec 20022,46659426.914.85$69,243
Nov 20022,40520224.664.14$60,143
Oct 20022,81385926.464.23$78,065
Sep 20022,4481,02127.443.64$70,885
Aug 20023,5792,57625.963.16$101,062
Jul 20023,9543,15524.583.06$106,849
Jun 20024,1144,63323.733.34$113,091
May 20024,4661,60524.663.58$115,884
Apr 20023,44113,29223.653.51$128,065
Mar 20023,0433,29022.003.10$77,154
Feb 20022,9532,07918.222.38$58,743
Jan 20023,2384,99817.172.38$67,470
Dec 20013,1178,30116.932.36$72,398
Nov 20013,45345718.072.41$63,495
Oct 20012,81957019.782.53$57,201
Sep 20013,2821,05724.262.25$82,001
Aug 20013,5761,42224.873.05$93,277
Jul 20012,6021,19123.933.20$66,074
Jun 20012,0812,24924.563.82$59,710
May 20012,3746925.524.31$60,882
Apr 20012,3892,69824.685.34$73,355
Mar 20012,2693,47924.545.38$74,386
Feb 20012,1511,40327.755.77$67,781
Jan 20012,4541,53727.478.40$80,320
Dec 20002,53561126.889.12$73,715
Nov 20002,46421132.215.66$80,559
Oct 20002,49245031.235.15$80,141
Sep 20002,2862,70231.875.19$86,869
Aug 20002,2082,43029.644.54$76,479
Jul 20002,4734,47328.534.09$88,848
Jun 20002,2721,59329.304.40$73,574
May 20002,5233,14027.263.68$80,331
Apr 20001,9742,01724.513.12$54,668
Mar 20002,35338328.422.86$67,968
Feb 20001,76924527.622.73$49,528
Jan 20002,7161,35025.272.48$71,982
Dec 19992,39590224.282.42$60,337
Nov 19992,3348623.192.43$54,335
Oct 19992,37127520.982.80$50,515
Sep 19992,60243421.752.62$57,730
Aug 19992,6981,47219.262.88$56,196
Jul 19992,31376317.892.37$43,190
Jun 19991,98641915.942.36$32,647
May 19992,31465915.792.32$38,068
Apr 19992,5091,47215.102.21$41,136
Mar 19992,7161,39312.471.84$36,429
Feb 19992,2782999.981.82$23,278
Jan 19992,48771010.381.90$27,164
Dec 19982,8216889.201.77$27,173
Nov 19982,42167910.892.19$27,849
Oct 19982,75163412.421.97$35,416
Sep 19982,62181912.592.08$34,704
Aug 19982,59190811.301.91$31,010
Jul 19982,6561,67911.742.24$34,938
Jun 19982,5102,05311.242.24$32,806
May 19982,8762,08012.622.21$40,884
Apr 19983,2511,34313.042.51$45,758
Mar 19982,9901,57312.802.31$41,905
Feb 19982,0361,10113.952.30$30,934
Jan 19982,8881,18314.702.15$45,003
Dec 19972,34250416.322.41$39,437
Nov 19972,4031,37418.193.09$47,954
Oct 19972,7751,05419.253.15$56,739
Sep 19972,4521,05117.742.95$46,604
Aug 19972,8703,05017.862.55$59,050
Jul 19972,6333,50417.582.25$54,161
Jun 19972,8623,15217.242.26$56,456
May 19972,8493,52418.972.31$62,181
Apr 19972,7591,16317.882.08$51,753
Mar 19972,91081818.951.94$56,731
Feb 19972,60358820.492.21$54,633
Jan 19972,61058923.483.54$63,368
Dec 19963,1112,55423.32$72,549
Nov 19962,83276621.97$62,219
Oct 19962,68774923.31$62,634
Sep 19962,59242722.22$57,594
Aug 19962,83490920.26$57,417
Jul 19962,81856719.55$55,092
Jun 19963,1882,13418.73$59,711
May 19962,84099319.43$55,181
Apr 19962,89476021.51$62,250
Mar 19962,81653019.38$54,574
Feb 19962,39976016.98$40,735
Jan 19962,98373617.07$50,920
Dec 19953,03373117.19$52,137
Nov 19952,93091216.00$46,880
Oct 19952,99367115.43$46,182
Sep 19952,9541,07316.18$47,796
Aug 19952,99557115.92$47,680
Jul 19953,03657015.24$46,269
Jun 19952,82192016.41$46,293
May 19952,98460717.56$52,399
Apr 19953,07667117.73$54,537
Mar 19953,1941,64416.44$52,509
Feb 19952,83864316.58$47,054
Jan 19953,4651,01915.92$55,163
Dec 19943,0551,03215.03$45,917
Nov 19943,20360015.90$50,928
Oct 19943,25573515.58$50,713
Sep 19942,8301,05915.29$43,271
Aug 19943,57099816.13$57,584
Jul 19943,14736617.56$55,261
Jun 19943,42056317.09$58,448
May 19943,59227015.88$57,041
Apr 19942,58533114.14$36,552
Mar 19943,97974712.46$49,578
Feb 19942,95729912.50$36,963
Jan 19941,82861512.66$23,142
Dec 19933,1641,25612.33$39,012
Nov 19933,3442,87514.49$48,455
Oct 19933,1371,42115.85$49,721
Sep 19933,05523215.03$45,917
Aug 19933,5305315.66$55,280
Jul 19933,58113415.46$55,362
Jun 19933,5651,49016.79$59,856
May 19933,81071417.68$67,361
Apr 19932,92172518.05$52,724
Mar 19932,63299718.14$47,744
Feb 19932,29789317.90$41,116
Jan 19932,5721,03916.93$43,544

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                  117 bbl  × $106.41 =    $12,450
Casinghead gas         3 Mcf  × $  3.05 =         $9

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Month total                                  $12,459

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/2523 is the state's own key, not one this site invented.