OCONNOR, THOMAS, -A-

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the TOM OCONNOR (5900 SAND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2875District 02Field 90534875OilCasinghead gasSaveExport
Value, all time
$4.0 M
Jan 1993 – May 2026
Value, last 12 filed months
$0
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 27 leases and 362 wells, and the rule below applies to all of them.

Discovered
1961-03-01
as the register files it
Field class
Oil
the register's own label
Between wells
0 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 2020-10-20.

The Commission's schedule remark for this field reads: SPECIAL HORIZ. LANGUAGE (TAKE POINTS)

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
OilDisposition106,827 bbl$2,838,106
Casinghead gasProduction235,638 Mcf$1,120,342
Total$3,958,448

38,661 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 (23)

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 28.3567, -97.1581. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.3 miles. 1 well has no surveyed location and is left out of it.

28.35592, -97.15422 · centre of 22 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
95.7%
22 of 23 wells
With a plug date
8.7%
2 of 23 wells
Median depth
5,921 ft
22 wells filed one
Completion to plug
13.5 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
2295.7%
A plug date is filed
28.7%
BothOn the schedule and plugged. Neither fact cancels the other.
28.7%
NeitherNo plug date, and not on the schedule.
14.3%

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, 22 of 23 wells. Median 5,921 ft, with the middle half between 5,909 and 5,926 ft; the shallowest is 5,893 ft and the deepest 5,996 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, 22 of 23 wells, Jun 1986 – 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 1986 – May 2024
22 of 23 wells; 1 filed none
Plug dates filed
Jan 2006 – Sep 2012
2 of 23 wells; 21 filed none

Last completion to plug: a median of 13.5 years across the 2 wells that filed both dates, with the middle half between 8.7 years and 18.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

23 wells

42-3918199638Yes
42-39101462355,901 ftMay 2024Yes
42-3910152045 L5,925 ftMar 2024Yes
42-391014875G5,996 ftJan 2024Yes
42-39101514245,902 ftJan 2024Yes
42-3910146033 L5,950 ftNov 2021Yes
42-39101467365,902 ftJan 2021Yes
42-39101517425,925 ftMar 2020Yes
42-391015312 G5,915 ftAug 2018Yes
42-39101515375,921 ftNov 2017Yes
42-391014853 G5,916 ftMay 2014
42-3910145932 L5,960 ftJan 2014Yes
42-39101549495,965 ftOct 2010Yes
42-39101548485,940 ftSep 2010Yes
42-39101507145,910 ftJul 2008Yes
42-39101510185,923 ftJul 2007Yes
42-39101511205,909 ftApr 2002Jan 2006Yes
42-39101518435,925 ftMar 2001Yes
42-39101512195,893 ftNov 2000Yes
42-3910150916 L5,900 ftMar 1998Yes
42-3910146339 L5,919 ftAug 1991Yes
42-3910151638 L5,926 ftJun 1989Sep 2012Yes
42-39101519445,920 ftJun 1986Yes

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 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
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 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20086055.496.86$333
Oct 20084645475.246.92$6,604
Sep 200898436101.767.88$13,407
Aug 20081511,024114.228.48$25,934
Jul 2008167716131.0811.39$30,045
Jun 2008192821131.3313.03$35,915
May 20081901,200123.1711.57$37,291
Apr 20081471,054110.3110.45$27,235
Mar 20081111,255101.909.66$23,439
Feb 200810285792.538.77$16,954
Jan 20081151,09090.388.21$19,338
Dec 20071501,29488.337.30$22,698
Nov 20072171,32791.677.29$29,568
Oct 20074421,35482.856.92$45,992
Sep 20073941,33475.846.24$38,211
Aug 200718076169.066.39$17,292
Jul 20078279770.906.39$10,905
Jun 20077984062.007.55$11,239
May 20079169458.747.85$10,791
Apr 200710288859.617.81$13,011
Mar 20076566556.927.30$8,556
Feb 20076648455.108.22$7,613
Jan 200713357250.306.73$10,538
Dec 20061641,26056.656.92$18,008
Nov 200610527954.207.62$7,816
Oct 20061141,74654.906.01$16,759
Sep 20061182,00060.085.04$17,164
Aug 200616117068.717.34$12,310
Jul 20061934,29869.376.34$40,650
Jun 20061671,25966.286.38$19,106
May 200628829366.016.42$20,893
Apr 200629560764.397.36$23,463
Mar 20065202,30056.707.08$45,775
Feb 200632754157.597.75$23,025
Jan 20064071,42760.598.93$37,408
Dec 20053941,47754.9413.42$41,461
Nov 20053602,58154.6910.59$47,017
Oct 20054121,47158.3413.80$44,330
Sep 20053982,90761.4512.08$59,571
Aug 20053901,35161.519.80$37,224
Jul 200543989755.697.84$31,484
Jun 20054211,73652.337.38$34,844
May 20054931,65845.226.65$33,321
Apr 20055162,49549.207.36$43,752
Mar 20055551,20050.377.15$36,541
Feb 200533553545.226.31$18,526
Jan 20053361,58743.166.32$24,535
Dec 20044491,35039.866.75$27,011
Nov 20043781,18145.286.33$24,592
Oct 200437575649.706.52$23,563
Sep 20043821,81743.245.28$26,119
Aug 200429870942.375.55$16,562
Jul 20043412,13038.286.08$26,013
Jun 20043481,49736.106.43$22,193
May 200447180037.486.49$22,849
Apr 20045774,19534.475.86$44,465
Mar 20046766,26534.365.53$57,874
Feb 20046642,86932.455.51$37,354
Jan 20047065,86832.036.30$59,579
Dec 20037034,30330.266.30$48,389
Nov 20037085,85128.804.60$47,277
Oct 20039638,12128.174.76$65,781
Sep 20038055,34726.314.75$46,574
Aug 20037817,53629.765.13$61,900
Jul 20031,4562,89929.415.17$57,811
Jun 20031,4663,14228.565.98$60,667
May 20031,50417526.595.97$41,037
Apr 20031,7802,50526.675.41$61,018
Mar 20031,5871,31931.146.10$57,460
Feb 20031,6103,55533.487.93$82,079
Jan 20031,8574,50630.315.58$81,438
Dec 20021,8846,95826.914.85$84,471
Nov 20021,0882,89124.664.14$38,790
Oct 20029407426.464.23$25,185
Sep 200296614027.443.64$27,016
Aug 200268483525.963.16$20,399
Jul 200262373724.583.06$17,570
Jun 200263221523.733.34$15,715
May 20021,19332824.663.58$30,595
Apr 200231790123.653.51$10,662
Mar 200230714822.003.10$7,213
Feb 200227066518.222.38$6,499
Jan 20022581,88517.172.38$8,908
Dec 20012421,84416.932.36$8,457
Nov 20012491,80618.072.41$8,844
Oct 20012801,26719.782.53$8,742
Sep 200127248424.262.25$7,688
Aug 200131653824.873.05$9,502
Jul 200127364723.933.20$8,601
Jun 20013851,63224.563.82$15,697
May 200129153125.524.31$9,714
Apr 200134682824.685.34$12,957
Mar 20013871,21424.545.38$16,024
Feb 200138646127.755.77$13,370
Jan 200150124927.478.40$15,854
Dec 200043537526.889.12$15,114
Nov 200047049032.215.66$17,911
Oct 200082551831.235.15$28,430
Sep 20001,12917231.875.19$36,873
Aug 20009841,07629.644.54$34,052
Jul 20001,11683128.534.09$35,238
Jun 20007648,01229.304.40$57,616
May 20004772,12727.263.68$20,830
Apr 20004952,12724.513.12$18,760
Mar 200046996428.422.86$16,086
Feb 200037918927.622.73$10,983
Jan 20004341,88325.272.48$15,638
Dec 199947437924.282.42$12,427
Nov 199927134423.192.43$7,122
Oct 199930156420.982.80$7,896
Sep 199933598221.752.62$9,858
Aug 19993951,61719.262.88$12,258
Jul 199929324017.892.37$5,811
Jun 199926634415.942.36$5,053
May 199929870915.792.32$6,351
Apr 199931780615.102.21$6,566
Mar 199935048412.471.84$5,254
Feb 19994622229.981.82$5,014
Jan 199951828710.381.90$5,922
Dec 19984692979.201.77$4,841
Nov 199838579710.892.19$5,935
Oct 199841959812.421.97$6,382
Sep 199847849612.592.08$7,051
Aug 199843544611.301.91$5,766
Jul 199846340911.742.24$6,351
Jun 199844240311.242.24$5,870
May 199846191712.622.21$7,841
Apr 199842433713.042.51$6,373
Mar 199846315112.802.31$6,275
Feb 199837217613.952.30$5,594
Jan 199839519614.702.15$6,229
Dec 19974408816.322.41$7,393
Nov 199739719318.193.09$7,817
Oct 199734749819.253.15$8,248
Sep 199731385617.742.95$8,082
Aug 199734968617.862.55$7,986
Jul 199735537417.582.25$7,081
Jun 199734427017.242.26$6,540
May 199742738718.972.31$8,994
Apr 199739517617.882.08$7,429
Mar 199741416518.951.94$8,165
Feb 199737119820.492.21$8,039
Jan 199745715523.483.54$11,279
Dec 19964239823.32$9,864
Nov 199643516821.97$9,557
Oct 199649978923.31$11,632
Sep 19964551,06822.22$10,110
Aug 19964121,49820.26$8,347
Jul 19964761,09119.55$9,306
Jun 199648426918.73$9,065
May 199648523219.43$9,424
Apr 19964848321.51$10,411
Mar 19965119319.38$9,903
Feb 199653711616.98$9,118
Jan 19961,0272917.07$17,531
Dec 19952546717.19$430
Nov 199567235216.00$10,752
Oct 199571450315.43$11,017
Sep 19951,0044416.18$16,245
Aug 199563468115.92$10,093
Jul 199573990815.24$11,262
Jun 199574756316.41$12,258
May 199583051017.56$14,575
Apr 199585977417.73$15,230
Mar 199569197616.44$11,360
Feb 199565366816.58$10,827
Jan 199565043915.92$10,348
Dec 199452269615.03$7,846
Nov 199472769115.90$11,559
Oct 199475787315.58$11,794
Sep 199478262015.29$11,957
Aug 19941,6613516.13$26,792
Jul 199465613717.56$11,519
Jun 199469934417.09$11,946
May 199477735715.88$12,339
Apr 199456643914.14$8,003
Mar 199452033312.46$6,479
Feb 199447233412.50$5,900
Jan 199468811112.66$8,710
Dec 199365926512.33$8,125
Nov 199375723314.49$10,969
Oct 199352813415.85$8,369
Sep 19931,26515315.03$19,013
Aug 19931,35526315.66$21,219
Jul 19931,24570015.46$19,248
Jun 19931,2105,74716.79$20,316
May 19931,15387517.68$20,385
Apr 19931,15543118.05$20,848
Mar 19931,7581,77918.14$31,890
Feb 19932,1974,44117.90$39,326
Jan 19932,9916,25116.93$50,638

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.

Nov 2008 — as filed, then multipliedworked
Oil                    6 bbl  × $ 55.49 =       $333
Casinghead gas         0 Mcf  × $  6.86 =         $0

────────────────────────────────────────────────────
Month total                                     $333

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/2875 is the state's own key, not one this site invented.