O'CONNOR, THOMAS -C-

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the TOM OCONNOR (5200, EAST) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 9135District 02Field 90534525OilCasinghead gasSaveExport
Value, all time
$21.0 M
Apr 2007 – May 2026
Value, last 12 filed months
$1.1 M
at the published price for each month
Months reported
230
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 79 wells, and the rule below applies to all of them.

Discovered
1956-12-09
as the register files it
Field class
Oil and gas
the register's own label
Between wells
800 ft
minimum
From a lease line
466 ft
minimum

A drilling unit in this field needs at least 200 acres.

The Commission's schedule remark for this field reads: FIELD TYPE CHANGED TO AOF EFFECTIVE 2-1-05.

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
OilDisposition273,493 bbl$20,731,050
Casinghead gasProduction61,681 Mcf$302,367
Total$21,033,418

Wells on this lease (12)

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 28.3690, -97.1538. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.3 miles.

28.36860, -97.15195 · 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
33.3%
4 of 12 wells
With a plug date
0.0%
0 of 12 wells
Median depth
5,965 ft
12 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
433.3%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
866.7%

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, 12 of 12 wells. Median 5,965 ft, with the middle half between 5,925 and 6,111 ft; the shallowest is 5,916 ft and the deepest 6,152 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, 12 of 12 wells, Feb 2008 – Mar 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
Feb 2008 – Mar 2024
12 of 12 wells

12 wells

42-39101152385,918 ftMar 2024Yes
42-39131609816,116 ftAug 2023
42-39101147325,925 ftJul 2023
42-39101149355,925 ftSep 2020
42-39131611836,115 ftJul 2019Yes
42-39131839876,152 ftOct 2017Yes
42-39101146205,925 ftApr 2017
42-39101154105,916 ftApr 2016
42-39101174305,930 ftMay 2015
42-39131608806,110 ftJan 2014
42-39131612846,100 ftAug 2011Yes
42-39101145556,000 ftFeb 2008

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 (230)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

230 months

May 20261,30528106.413.05$138,950
Apr 20268294898.932.87$82,151
Mar 20261,3242189.753.15$118,895
Feb 20261,330863.503.75$84,485
Jan 20261,4151159.138.00$83,757
Dec 20251,437356.664.41$81,434
Nov 20251,1631458.593.93$68,195
Oct 20251,398159.383.30$83,017
Sep 20251,3732162.743.08$86,207
Aug 20251,4512563.933.01$92,838
Jul 20251,0724266.743.32$71,685
Jun 20251,14326966.483.13$76,828
May 20251,0674460.553.23$64,749
Apr 20259068062.363.54$56,782
Mar 20251,1028667.704.27$74,972
Feb 20259824370.884.34$69,791
Jan 20251,02828574.324.28$77,620
Dec 20241,09227668.993.12$76,199
Nov 20241,02011769.052.20$70,688
Oct 20241,16310571.372.28$83,243
Sep 20241,241069.612.36$86,386
Aug 20241,6396175.632.06$124,083
Jul 20241,7192079.932.15$137,443
Jun 20241,66213978.082.63$130,135
May 20241,90242178.812.20$150,822
Apr 20242,17520984.451.66$184,026
Mar 20242,33250480.301.55$188,038
Feb 20242,10239576.091.78$160,646
Jan 20242,7731,07273.023.30$206,020
Dec 20232,81249071.262.61$201,662
Nov 20233,02645677.892.81$236,975
Oct 20232,99713585.443.09$256,480
Sep 20232,85425489.042.74$254,815
Aug 20231,853980.522.67$149,228
Jul 2023463074.852.64$34,656
Jun 2023230068.962.26$15,861
May 2023106070.622.23$7,486
Apr 2023105078.122.24$8,203
Mar 202361072.852.39$4,444
Feb 2023100075.112.47$7,511
Jan 2023165076.533.39$12,627
Dec 2022140076.415.73$10,697
Nov 2022150085.005.65$12,750
Oct 2022200187.185.86$17,442
Sep 2022181084.888.16$15,363
Aug 2022168094.529.13$15,879
Jul 20221820101.587.54$18,488
Jun 20221600115.097.98$18,414
May 20221622109.378.43$17,735
Apr 20221350104.226.84$14,070
Mar 20221310108.885.08$14,263
Feb 202295091.054.86$8,650
Jan 2022134681.844.54$10,994
Dec 20211562071.323.90$11,204
Nov 2021218777.435.24$16,916
Oct 2021214179.795.71$17,081
Sep 20212131669.865.35$14,966
Aug 2021184066.024.22$12,148
Jul 2021150070.783.98$10,617
Jun 202115610069.493.38$11,179
May 2021191463.483.02$12,137
Apr 2021208760.362.76$12,574
Mar 2021313161.302.72$19,190
Feb 2021187057.805.55$10,809
Jan 20212921850.412.81$14,770
Dec 20203181044.642.68$14,222
Nov 20203401638.772.71$13,225
Oct 20203441936.972.48$12,765
Sep 20203013137.091.99$11,226
Aug 20202804439.982.39$11,299
Jul 20202622938.371.83$10,106
Jun 20202672934.901.69$9,367
May 20202784416.921.81$4,784
Apr 20203494614.751.80$5,231
Mar 20202807930.341.86$8,642
Feb 20202607149.881.98$13,109
Jan 2020356057.252.09$20,381
Dec 2019373059.012.30$22,011
Nov 201937810955.302.75$21,203
Oct 201932412053.472.42$17,615
Sep 201930520755.052.66$17,340
Aug 201932724453.112.30$17,929
Jul 201927525456.272.46$16,099
Jun 201933525652.782.49$18,319
May 201938318958.482.74$22,916
Apr 20192571962.632.75$16,148
Mar 20193399356.803.06$19,540
Feb 201930711050.852.79$15,918
Jan 201932010546.033.23$15,069
Dec 201830212946.594.19$14,610
Nov 20183175152.934.24$16,995
Oct 20182775161.443.40$17,192
Sep 20182923959.543.11$17,507
Aug 20184473559.403.07$26,659
Jul 20185143565.142.93$33,585
Jun 20186025960.183.08$36,410
May 20186224265.382.90$40,788
Apr 20186651663.842.90$42,500
Mar 20186221761.222.79$38,126
Feb 2018547461.782.77$33,805
Jan 2018595262.874.01$37,416
Dec 2017601057.272.92$34,419
Nov 20175491155.423.12$30,460
Oct 2017575049.292.98$28,342
Sep 2017271047.523.09$12,878
Aug 20174831145.373.00$21,947
Jul 20176801443.873.09$29,875
Jun 2017584642.493.09$24,833
May 20175902245.373.26$26,840
Apr 2017561047.933.21$26,889
Mar 2017794046.772.98$37,135
Feb 20171,384350.452.95$69,832
Jan 20171,257649.413.42$62,129
Dec 20161,4231748.763.72$69,449
Nov 20161,3165242.492.64$56,054
Oct 20161,4512346.193.09$67,093
Sep 20161,3573641.553.10$56,495
Aug 20161,1574241.442.92$48,069
Jul 20161,0139541.622.92$42,439
Jun 20161,17615245.352.69$53,740
May 20161,22828942.521.99$52,790
Apr 201689524836.561.99$33,215
Mar 201656122033.011.79$18,913
Feb 20164604926.472.06$12,277
Jan 2016876827.352.36$23,978
Dec 2015847732.362.00$27,423
Nov 20151,032938.792.17$40,051
Oct 20158301143.552.43$36,173
Sep 20151,1682042.992.76$50,267
Aug 20151,11418040.162.87$45,255
Jul 20151,118648.152.95$53,849
Jun 20151,0273956.152.88$57,778
May 20151,2126355.212.96$67,101
Apr 20151,0172449.822.71$50,732
Mar 20151,0772042.892.93$46,251
Feb 20151,2106444.662.98$54,229
Jan 20151,6597743.433.10$72,289
Dec 20141,404054.693.59$76,785
Nov 20141,660070.464.25$116,964
Oct 20141,845078.303.90$144,464
Sep 20141,780086.164.05$153,365
Aug 20141,7451589.394.04$156,046
Jul 20141,8308696.564.18$177,064
Jun 20141,8031398.164.74$177,044
May 20142,26128194.734.73$215,513
Apr 20142,10420695.944.81$202,848
Mar 20142,15234195.895.06$208,080
Feb 20142,14233297.406.19$210,687
Jan 20141,91163990.404.86$175,860
Dec 20131,31823091.824.35$122,020
Nov 20131,17338988.853.74$105,675
Oct 20131,26854697.423.78$125,592
Sep 20131,400539104.113.72$147,758
Aug 20131,7281,200104.253.52$184,371
Jul 20131,331829102.523.72$139,536
Jun 20131,4121,55094.403.93$139,390
May 20131,4502,97194.834.15$149,830
Apr 20131,2991,84093.964.28$129,934
Mar 20131,31125193.623.91$123,718
Feb 20131,48642691.233.42$137,025
Jan 20131,59956891.603.42$148,411
Dec 20121,32360786.773.42$116,873
Nov 20121,75049186.953.62$153,942
Oct 20121,77651489.383.40$160,486
Sep 20121,52934194.672.92$145,746
Aug 20121,99263292.662.91$186,417
Jul 20121,75138785.133.02$150,232
Jun 20121,67120979.822.52$133,906
May 20121,73220691.612.49$159,181
Apr 20121,703606101.652.00$174,320
Mar 20121,825324105.052.22$192,436
Feb 20121,189146101.102.57$120,583
Jan 20121,14513898.092.73$112,690
Dec 20111,3756596.873.24$133,407
Nov 20111,3553195.723.31$129,803
Oct 20111,62746384.983.65$139,952
Sep 20111,40016683.623.99$117,730
Aug 20112,24132583.404.15$188,248
Jul 20112,31134594.144.52$219,116
Jun 20112,29132892.904.64$214,356
May 20112,03647198.134.40$201,867
Apr 20111,866374105.964.33$199,342
Mar 20111,97528496.364.06$191,463
Feb 20111,84932885.644.18$159,719
Jan 20112,17237086.504.59$189,576
Dec 20102,18037585.734.35$188,522
Nov 20102,03241280.843.80$165,831
Oct 20101,5111,03578.103.51$121,641
Sep 20101,49486172.633.98$111,936
Aug 20101,48414673.684.42$109,986
Jul 20102,263072.554.74$164,181
Jun 20102,460070.364.91$173,086
May 20102,35145071.124.24$169,109
Apr 20102,10733881.694.12$173,514
Mar 20102,11065178.394.39$168,260
Feb 20101,91134973.585.44$142,511
Jan 20102,2502,32274.365.96$181,159
Dec 20092,45682771.445.48$179,992
Nov 20092,30375974.593.75$174,628
Oct 20092,66176972.544.11$196,190
Sep 20092,48363065.543.06$164,667
Aug 20092,80665767.423.22$191,295
Jul 20092,72264061.133.46$168,613
Jun 20092,20461166.163.90$148,196
May 20092,42969554.743.93$135,692
Apr 20092,55769846.773.59$122,095
Mar 20092,68263542.144.06$115,597
Feb 20092,47058632.814.63$83,756
Jan 20092,40771035.865.37$90,128
Dec 20082,95458437.105.98$113,084
Nov 20082,79863255.496.86$159,597
Oct 20082,98465975.246.92$229,078
Sep 20082,580696101.767.88$268,023
Aug 20083,062819114.228.48$356,689
Jul 20082,896897131.0811.39$389,824
Jun 20083,347831131.3313.03$450,392
May 20083,234712123.1711.57$406,573
Apr 20083,089716110.3110.45$348,233
Mar 20081,902716101.909.66$200,733
Feb 20086224792.538.77$7,903
Jan 20086130090.388.21$7,975
Dec 20076134188.337.30$7,878
Nov 20075937991.677.29$8,172
Oct 20076338382.856.92$7,871
Sep 20078733175.846.24$8,665
Aug 20078934369.066.39$8,337
Jul 20079135870.906.39$8,739
Jun 20079133462.007.55$8,163
May 2007972,57758.747.85$25,918
Apr 20071071,96459.617.81$21,708

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                1,305 bbl  × $106.41 =   $138,865
Casinghead gas        28 Mcf  × $  3.05 =        $85

────────────────────────────────────────────────────
Month total                                 $138,950

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/9135 is the state's own key, not one this site invented.