O'CONNOR, THOMAS "A"

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the TOM O'CONNOR (5770 U, SOUTH) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 7579District 02Field 90534840OilCasinghead gasSave
Value, all time
$22.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$320 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
OilDisposition538,393 bbl$20,242,457
Casinghead gasProduction627,135 Mcf$2,367,950
Total$22,610,407

149,023 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 (25)

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 28.3536, -97.1499. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.3 miles.

28.35404, -97.14567 · 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
68.0%
17 of 25 wells
With a plug date
16.0%
4 of 25 wells
Median depth
5,904 ft
25 wells filed one
Completion to plug
6.3 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
1768.0%
A plug date is filed
416.0%
BothOn the schedule and plugged. Neither fact cancels the other.
416.0%
NeitherNo plug date, and not on the schedule.
832.0%

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, 25 of 25 wells. Median 5,904 ft, with the middle half between 5,900 and 5,915 ft; the shallowest is 5,846 ft and the deepest 6,221 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, 24 of 25 wells, Jun 1989 – May 2024. 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 1989 – May 2024
24 of 25 wells; 1 filed none
Plug dates filed
Mar 2000 – Jul 2018
4 of 25 wells; 21 filed none

Last completion to plug: a median of 6.3 years across the 3 wells that filed both dates, with the middle half between 5.1 years and 14.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

25 wells

42-39101503105,910 ftJul 2018Yes
42-39101462355,901 ftMay 2024Yes
42-391015591035,900 ftApr 2024
42-391325011196,221 ftMar 2024
42-391014875G5,996 ftJan 2024Yes
42-39101514245,902 ftJan 2024Yes
42-3910150295,900 ftSep 2023
42-3910149855,846 ftMar 2023Yes
42-391015571015,898 ftNov 2021Yes
42-3910147054 U5,925 ftApr 2021Yes
42-39101546315,883 ftFeb 2021
42-39101467365,902 ftJan 2021Yes
42-3910153717 U5,895 ftJan 2021
42-391014853 G5,916 ftMay 2014
42-39101507145,910 ftJul 2008Yes
42-391015581025,904 ftSep 2007Yes
42-391020361065,912 ftApr 2003Yes
42-39101511205,909 ftApr 2002Jan 2006Yes
42-3910154126 U5,910 ftJul 2001
42-39101579975,900 ftJul 2001Yes
42-39101506135,885 ftDec 2000Yes
42-39101509165,900 ftMar 1998Yes
42-39101545306,029 ftNov 1993Mar 2000Yes
42-39101543285,915 ftJul 1990
42-3910151638 L5,926 ftJun 1989Sep 2012Yes

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 2026349298.932.87$34,532
Mar 2026386789.753.15$34,666
Feb 2026474763.503.75$30,125
Jan 20264751059.138.00$28,167
Dec 2025534056.664.41$30,256
Nov 20255311458.593.93$31,166
Oct 2025405259.383.30$24,056
Sep 20253821862.743.08$24,022
Aug 20253732063.933.01$23,906
Jul 20253323366.743.32$22,267
Jun 202553920466.483.13$36,471
May 20254703860.553.23$28,581
Apr 20257243362.363.54$45,266
Mar 20251,1914567.704.27$80,823
Feb 20254102270.884.34$29,156
Jan 20253946774.324.28$29,569
Dec 20249428868.993.12$65,263
Nov 20241,0324569.052.20$71,359
Oct 20248751971.372.28$62,492
Sep 2024418069.612.36$29,097
Aug 2024213875.632.06$16,126
Jul 2024230679.932.15$18,397
Jun 20245515278.082.63$43,159
May 202452437078.812.20$42,110
Apr 202438526684.451.66$32,955
Mar 202469642180.301.55$56,539
Feb 202489923976.091.78$68,831
Jan 20241,05443373.023.30$78,391
Dec 202377551071.262.61$56,558
Nov 202359814377.892.81$46,980
Oct 202394643685.443.09$82,172
Sep 2023943089.042.74$83,965
Aug 20231,630080.522.67$131,248
Jul 20231,603074.852.64$119,985
Jun 2023557068.962.26$38,411
May 2023749070.622.23$52,894
Apr 2023915078.122.24$71,480
Mar 20231,222072.852.39$89,023
Feb 2023666075.112.47$50,023
Jan 2023621076.533.39$47,525
Dec 2022474076.415.73$36,218
Nov 2022381085.005.65$32,385
Oct 20223842087.185.86$33,594
Sep 2022372084.888.16$31,575
Aug 2022398094.529.13$37,619
Jul 20224430101.587.54$45,000
Jun 20224290115.097.98$49,374
May 20224263109.378.43$46,617
Apr 20224040104.226.84$42,105
Mar 20225740108.885.08$62,497
Feb 2022517091.054.86$47,073
Jan 2022690081.844.54$56,470
Dec 2021715071.323.90$50,994
Nov 2021669077.435.24$51,801
Oct 2021697079.795.71$55,614
Sep 2021528469.865.35$36,907
Aug 202160288266.024.22$43,467
Jul 2021668070.783.98$47,281
Jun 202166611469.493.38$46,666
May 20218161463.483.02$51,842
Apr 2021775060.362.76$46,779
Mar 2021792061.302.72$48,550
Feb 2021645057.805.55$37,281
Jan 2021892050.412.81$44,966
Dec 2020835044.642.68$37,274
Nov 2020677038.772.71$26,247
Oct 2020729036.972.48$26,951
Sep 2020758037.091.99$28,114
Aug 2020641039.982.39$25,627
Jul 2020694038.371.83$26,629
Jun 2020937034.901.69$32,701
May 2020133016.921.81$2,250
Apr 2020477014.751.80$7,036
Mar 2020674430.341.86$20,457
Feb 20206571549.881.98$32,801
Jan 202034717657.252.09$20,234
Dec 20193924259.012.30$23,229
Nov 2019366855.302.75$20,262
Oct 2019318053.472.42$17,003
Sep 20193912655.052.66$21,594
Aug 20194438253.112.30$23,717
Jul 20194128056.272.46$23,380
Jun 2019381052.782.49$20,109
May 2019477058.482.74$27,895
Apr 2019398062.632.75$24,927
Mar 2019487056.803.06$27,662
Feb 2019436050.852.79$22,171
Jan 2019553046.033.23$25,455
Dec 2018388046.594.19$18,077
Nov 2018436052.934.24$23,077
Oct 2018353061.443.40$21,688
Sep 2018296059.543.11$17,624
Aug 2018388059.403.07$23,047
Jul 2018341065.142.93$22,213
Jun 2018356060.183.08$21,424
May 2018280065.382.90$18,306
Apr 2018451063.842.90$28,792
Mar 2018380061.222.79$23,264
Feb 2018290061.782.77$17,916
Jan 2018525062.874.01$33,007
Dec 2017328057.272.92$18,785
Nov 2017423055.423.12$23,443
Oct 2017359049.292.98$17,695
Sep 201787047.523.09$4,134
Aug 2017285445.373.00$12,942
Jul 2017360643.873.09$15,812
Jun 2017309542.493.09$13,145
May 2017386445.373.26$17,526
Apr 2017223047.933.21$10,688
Mar 2017354046.772.98$16,557
Feb 2017298250.452.95$15,040
Jan 2017332649.413.42$16,425
Dec 20163131848.763.72$15,329
Nov 20163479242.492.64$14,987
Oct 201628327346.193.09$13,915
Sep 201632721541.553.10$14,253
Aug 20162935941.442.92$12,314
Jul 2016418941.622.92$17,423
Jun 20161881045.352.69$8,553
May 20163321242.521.99$14,141
Apr 20162851236.561.99$10,443
Mar 20162331233.011.79$7,713
Feb 2016262526.472.06$6,945
Jan 20162763027.352.36$7,620
Dec 20154694832.362.00$15,273
Nov 201567328038.792.17$26,713
Oct 201582241043.552.43$36,793
Sep 201584837442.992.76$37,487
Aug 201598458840.162.87$41,206
Jul 201597859948.152.95$48,855
Jun 201587046556.152.88$50,191
May 201585174255.212.96$49,177
Apr 201575151349.822.71$38,803
Mar 201574739242.892.93$33,189
Feb 201574572244.662.98$35,421
Jan 201568157743.433.10$31,365
Dec 201465867554.693.59$38,410
Nov 201458153070.464.25$43,191
Oct 201464579078.303.90$53,585
Sep 201461270486.164.05$55,578
Aug 201465483889.394.04$61,842
Jul 20146341,17396.564.18$66,122
Jun 201474857298.164.74$76,133
May 201467867194.734.73$67,398
Apr 201466275895.944.81$67,158
Mar 201479658995.895.06$79,307
Feb 201471376297.406.19$74,165
Jan 20148113,89190.404.86$92,227
Dec 20137261,38191.824.35$72,675
Nov 201356799488.853.74$54,094
Oct 201345643497.423.78$46,064
Sep 2013559584104.113.72$60,369
Aug 20136681,323104.253.52$74,299
Jul 20136681,407102.523.72$73,714
Jun 20137991,30394.403.93$80,551
May 201363413394.834.15$60,674
Apr 20139152,16493.964.28$95,241
Mar 20139831,46093.623.91$97,741
Feb 201343045291.233.42$40,775
Jan 201345741391.603.42$43,274
Dec 201258739586.773.42$52,285
Nov 201294334186.953.62$83,230
Oct 20124355189.383.40$39,054
Sep 20126879694.672.92$65,318
Aug 201280322292.662.91$75,052
Jul 201278819585.133.02$67,672
Jun 201251927479.822.52$42,117
May 201249244391.612.49$46,174
Apr 2012580402101.652.00$59,760
Mar 201260063105.052.22$63,170
Feb 2012635102101.102.57$64,461
Jan 20128118298.092.73$79,775
Dec 20118896096.873.24$86,312
Nov 20118072695.723.31$77,332
Oct 20118917284.983.65$75,980
Sep 201186512683.623.99$72,834
Aug 20111,0045683.404.15$83,966
Jul 20111,14614294.144.52$108,526
Jun 20111,16720792.904.64$109,375
May 20111,2776998.134.40$125,616
Apr 20111,14534105.964.33$121,472
Mar 20111,5862696.364.06$152,932
Feb 20111,1488385.644.18$98,662
Jan 20111,21613586.504.59$105,803
Dec 20101,07313585.734.35$92,575
Nov 201096633480.843.80$79,359
Oct 201098113478.103.51$77,086
Sep 20101,1007,96472.633.98$111,586
Aug 20101,1876,12573.684.42$114,527
Jul 20101,3137,96872.554.74$132,999
Jun 20101,129070.364.91$79,436
May 20101,3335,19071.124.24$116,784
Apr 20101,7875,63781.694.12$169,220
Mar 20101,7196,65078.394.39$163,937
Feb 20101,6134,93373.585.44$145,532
Jan 20102,5142,81474.365.96$203,724
Dec 20092,3171,67071.445.48$174,684
Nov 20092,1632,99574.593.75$172,574
Oct 20092,0932,03372.544.11$160,182
Sep 20092,1363,33865.543.06$150,224
Aug 20092,2354,95067.423.22$166,615
Jul 20092,3276,93561.133.46$166,276
Jun 20092,3176,38666.163.90$178,166
May 20092,3284,00354.743.93$143,150
Apr 20092,2524,58246.773.59$121,764
Mar 20092,7009,37242.144.06$151,819
Feb 20092,5115,66832.814.63$108,646
Jan 20092,65210,00635.865.37$148,843
Dec 20082,8806,07837.105.98$143,177
Nov 20082,67610,00655.496.86$217,136
Oct 20083,08911,48875.246.92$311,936
Sep 20082,7805,966101.767.88$329,888
Aug 20082,7589,199114.228.48$393,054
Jul 20082,3948,157131.0811.39$406,709
Jun 20082,2641,278131.3313.03$313,987
May 2008720827123.1711.57$98,254
Apr 2008784792110.3110.45$94,763
Mar 2008659844101.909.66$75,309
Feb 200843987492.538.77$48,286
Jan 20084541,05590.388.21$49,690
Dec 200736089588.337.30$38,334
Nov 200747494691.677.29$50,350
Oct 200739092282.856.92$38,694
Sep 200737078075.846.24$32,931
Aug 200727579869.066.39$24,089
Jul 200728083270.906.39$25,167
Jun 200727983062.007.55$23,563
May 200732787058.747.85$26,034
Apr 200726759259.617.81$20,537
Mar 20072981,25456.927.30$26,119
Feb 20072551,06855.108.22$22,825
Jan 200727694050.306.73$20,206
Dec 20062821,23356.656.92$24,506
Nov 200621731454.207.62$14,153
Oct 200623226754.906.01$14,342
Sep 200620055460.085.04$14,807
Aug 20062544,61668.717.34$51,333
Jul 20062704,11969.376.34$44,856
Jun 20062211,59566.286.38$24,830
May 20062911,81066.016.42$30,838
Apr 20062624,05864.397.36$46,739
Mar 200639677556.707.08$27,942
Feb 20062501,98357.597.75$29,768
Jan 20063571,46060.598.93$34,673
Dec 20053472,02454.9413.42$46,217
Nov 20053563,82354.6910.59$59,949
Oct 20055411,85358.3413.80$57,125
Sep 20055373,86561.4512.08$79,684
Aug 20055861,62161.519.80$51,926
Jul 200566294755.697.84$44,295
Jun 20055631,82552.337.38$42,932
May 20053121,19145.226.65$22,030
Apr 20053311,94549.207.36$30,601
Mar 200541595450.377.15$27,729
Feb 200535847045.226.31$19,155
Jan 20053601,39543.166.32$24,357
Dec 20044651,12839.866.75$26,150
Nov 200443590345.286.33$25,413
Oct 20044311,05649.706.52$28,301
Sep 20044462,97243.245.28$34,989
Aug 20045549,80342.375.55$77,886
Jul 20045286,80138.286.08$61,590
Jun 20045294,08436.106.43$45,369
May 20046101,44637.486.49$32,254
Apr 20045392,26234.475.86$31,831
Mar 20046032,25534.365.53$33,190
Feb 20045931,01832.455.51$24,852
Jan 20046092,52332.036.30$35,400
Dec 20035651,57030.266.30$26,990
Nov 20038041,83528.804.60$31,587
Oct 20039312,53528.174.76$38,292
Sep 20037581,69026.314.75$27,969
Aug 20038692,02029.765.13$36,223
Jul 20038201,39529.415.17$31,330
Jun 20037941,68628.565.98$32,764
May 20037258126.595.97$19,762
Apr 200342848726.675.41$14,048
Mar 200352436931.146.10$18,567
Feb 20034051,08133.487.93$22,127
Jan 200344897230.315.58$19,005
Dec 20022152,24826.914.85$16,697
Nov 20022151,73124.664.14$12,463
Oct 20023444426.464.23$9,288
Sep 20024088327.443.64$11,497
Aug 200241679725.963.16$13,321
Jul 20024871,00324.583.06$15,041
Jun 20021,30138423.733.34$32,155
May 20021,01137324.663.58$26,268
Apr 20021,2261,30023.653.51$33,561
Mar 20021,10820622.003.10$25,015
Feb 200292376918.222.38$18,644
Jan 20021,1991,10717.172.38$23,217
Dec 20011,2921,70116.932.36$25,895
Nov 20011,7262,22018.072.41$36,529
Oct 20011,9841,50719.782.53$43,055
Sep 20012,2241,03424.262.25$56,282
Aug 20012,2011,22924.873.05$58,491
Jul 20012,2001,50823.933.20$57,467
Jun 20013,4492,30124.563.82$93,507
May 20011,9432,42125.524.31$60,013
Apr 20012,3552,73824.685.34$72,730
Mar 20011,9943,32224.545.38$66,793
Feb 20012,0241,30027.755.77$63,663
Jan 20012,1991,23027.478.40$70,737
Dec 20002,2483,09426.889.12$88,651
Nov 20001,7782,63732.215.66$72,190
Oct 20002,8492,92531.235.15$104,025
Sep 20001,24952131.875.19$42,508
Aug 20002,6593,29829.644.54$93,788
Jul 20002,3202,61428.534.09$76,880
Jun 20003,4166,41429.304.40$128,293
May 20002,3378,53827.263.68$95,124
Apr 20002,88310,28224.513.12$102,701
Mar 20002,3164,66928.422.86$79,173
Feb 20001,8722,68727.622.73$59,031
Jan 20001,8557,67325.272.48$65,909
Dec 19992,2773,19824.282.42$63,037
Nov 19992,3871,42623.192.43$58,825
Oct 19991,7671,92220.982.80$42,460
Sep 19991,6752,36821.752.62$42,633
Aug 19992,3782,93019.262.88$54,226
Jul 19992,20865217.892.37$41,048
Jun 19992,1472,74915.942.36$40,717
May 19992,1362,53215.792.32$39,604
Apr 19992,5583,55215.102.21$46,469
Mar 19992,3771,58912.471.84$32,562
Feb 19992,0771,0919.981.82$22,712
Jan 19991,84188810.381.90$20,797
Dec 19981,9929619.201.77$20,031
Nov 19981,9341,88210.892.19$25,175
Oct 19982,4571,80012.421.97$34,061
Sep 19982,0401,39512.592.08$28,589
Aug 19982,3021,24111.301.91$28,380
Jul 19982,3552,10711.742.24$32,362
Jun 19982,2021,92811.242.24$29,064
May 19982,6054,89312.622.21$43,671
Apr 19982,5971,64813.042.51$37,994
Mar 19983,02374612.802.31$40,417
Feb 19982,27095513.952.30$33,862
Jan 19983,1451,06414.702.15$48,524
Dec 19971,85749016.322.41$31,488
Nov 19972,6681,07618.193.09$51,854
Oct 19972,5922,78119.253.15$58,656
Sep 19972,2424,78317.742.95$53,906
Aug 19972,5864,82917.862.55$58,523
Jul 19972,6953,62917.582.25$55,532
Jun 19972,4742,57817.242.26$48,471
May 19972,6723,75718.972.31$59,361
Apr 19972,2942,06317.882.08$45,314
Mar 19972,3571,97818.951.94$48,501
Feb 19972,5902,20820.492.21$57,940
Jan 19973,1381,51823.483.54$79,054
Dec 19962,9961,10823.32$69,867
Nov 19963,4861,90021.97$76,587
Oct 19962,9342,27923.31$68,392
Sep 19963,0463,70222.22$67,682
Aug 19962,8303,65920.26$57,336
Jul 19962,3412,51519.55$45,767
Jun 19962,4352,42218.73$45,608
May 19962,2822,06819.43$44,339
Apr 19962,53065521.51$54,420
Mar 19963,50662919.38$67,946
Feb 19962,9241,21516.98$49,650
Jan 19962,91142717.07$49,691
Dec 19953,8322,51317.19$65,872
Nov 19952,5211,36916.00$40,336
Oct 19952,9091,89015.43$44,886
Sep 19952,4521,97716.18$39,673
Aug 19953,5894,68015.92$57,137
Jul 19953,5636,08215.24$54,300
Jun 19953,7505,82316.41$61,538
May 19953,9135,79017.56$68,712
Apr 19953,9858,81517.73$70,654
Mar 19953,54411,38816.44$58,263
Feb 19954,2224,47016.58$70,001
Jan 19954,4104,04115.92$70,207
Dec 19945,1776,12415.03$77,810
Nov 19944,5566,17215.90$72,440
Oct 19943,6895,03815.58$57,475
Sep 19944,3433,39015.29$66,404
Aug 19943,78930416.13$61,117
Jul 19944,4641,18017.56$78,388
Jun 19945,1632,98917.09$88,236
May 19944,5714,38615.88$72,587
Apr 19944,4132,47414.14$62,400
Mar 19944,4372,57312.46$55,285
Feb 19943,7542,71712.50$46,925
Jan 19944,4601,16512.66$56,464
Dec 19935,2062,11512.33$64,190
Nov 19934,1451,61314.49$60,061
Oct 19934,9062,06115.85$77,760
Sep 19935,0551,69715.03$75,977
Aug 19935,3251,79915.66$83,390
Jul 19934,7182,54915.46$72,940
Jun 19934,9303,46316.79$82,775
May 19934,8134,13617.68$85,094
Apr 19934,1682,07918.05$75,232
Mar 19933,9681,82518.14$71,980
Feb 19933,2161,71717.90$57,566
Jan 19935,7064,04016.93$96,603

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                  349 bbl  × $ 98.93 =    $34,527
Casinghead gas         2 Mcf  × $  2.87 =         $6

────────────────────────────────────────────────────
Month total                                  $34,532

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/7579 is the state's own key, not one this site invented.