O CONNOR, THOS. -B-

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the MARY ELLEN OCONNOR (FQ- 9) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 954District 02Field 57911130OilCasinghead gasSaveExport
Value, all time
$3.2 M
Jan 1993 – Apr 2020
Value, last 12 filed months
$0
at the published price for each month
Months reported
328
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 6 leases and 29 wells, and the rule below applies to all of them.

Discovered
1953-10-10
as the register files it
Field class
Oil and gas
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres.

The Commission's schedule remark for this field reads: RESCINDED CASING & MULTI-STAGE CEMENTING RULES 1-13-86.

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
OilDisposition53,526 bbl$2,418,313
Casinghead gasProduction308,091 Mcf$792,975
Total$3,211,288

106,269 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 (11)

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 28.2683, -97.2118. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.3 miles.

28.26750, -97.21131 · 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
100.0%
11 of 11 wells
With a plug date
90.9%
10 of 11 wells
Median depth
6,200 ft
10 wells filed one
Completion to plug
12.7 years
median over 10 wells

What the state filed about each well

On the RRC proration schedule
11100.0%
A plug date is filed
1090.9%
BothOn the schedule and plugged. Neither fact cancels the other.
1090.9%
NeitherNo plug date, and not on the schedule.
00.0%

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

Total depth in feet, 10 of 11 wells. Median 6,200 ft, with the middle half between 6,120 and 6,201 ft; the shallowest is 6,000 ft and the deepest 6,800 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, 11 of 11 wells, Jan 1957 – Dec 2014. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jan 1957 – Dec 2014
11 of 11 wells
Plug dates filed
Oct 1990 – Nov 2021
10 of 11 wells; 1 filed none

Last completion to plug: a median of 12.7 years across the 10 wells that filed both dates, with the middle half between 8.8 years and 25.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

11 wells

42-39132924556,224 ftDec 2014Dec 2019Yes
42-39101836346,125 ftAug 2010Oct 2019Yes
42-39101827156,800 ftDec 2009Aug 2018Yes
42-39101841366,000 ftMay 1998Aug 2018Yes
42-39101808256,200 ftSep 1993Apr 2000Yes
42-39101828166,200 ftAug 1993Nov 2021Yes
42-39101830186,118 ftOct 1990Aug 2018Yes
42-39101839286,200 ftSep 1986Jul 1999Yes
42-3910184237 D6,000 ftApr 1978Oct 1990Yes
42-39101826146,201 ftJun 1969Dec 2019Yes
42-391018215Jan 1957Yes

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 (328)

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

328 months

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 201655026.472.06$1,456
Jan 2016301,04027.352.36$3,279
Dec 2015781,25232.362.00$5,030
Nov 201579038.792.17$3,064
Oct 2015152043.552.43$6,620
Sep 2015218042.992.76$9,372
Aug 20151427,02340.162.87$25,876
Jul 20151224,47048.152.95$19,039
Jun 2015471,71356.152.88$7,577
May 20157151655.212.96$5,445
Apr 20155158149.822.71$4,113
Mar 201579242.892.93$570
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 201431054.693.59$1,695
Nov 2014192,52970.464.25$12,092
Oct 201402,32178.303.90$9,054
Sep 2014980586.164.05$4,032
Aug 20148775989.394.04$10,840
Jul 20145768396.564.18$8,359
Jun 20146812798.164.74$7,276
May 201440094.734.73$3,789
Apr 201417095.944.81$1,631
Mar 20141255595.895.06$3,957
Feb 201432097.406.19$3,117
Jan 2014251,08990.404.86$7,553
Dec 201372091.824.35$6,611
Nov 2013100088.853.74$8,885
Oct 201311124897.423.78$11,751
Sep 2013783,504104.113.72$21,148
Aug 2013923,562104.253.52$22,139
Jul 20136048102.523.72$6,330
Jun 20137876394.403.93$10,364
May 20131052,55694.834.15$20,562
Apr 20131181,24593.964.28$16,419
Mar 20131953,07193.623.91$30,272
Feb 20132292,89591.233.42$30,792
Jan 20132874,25491.603.42$40,838
Dec 20123046,83686.773.42$49,758
Nov 20122963,61186.953.62$38,827
Oct 20124033,23389.383.40$47,011
Sep 20122821,13194.672.92$29,998
Aug 20122012,21592.662.91$25,066
Jul 20122761,93485.133.02$29,338
Jun 20122981,49079.822.52$27,540
May 20122911,75091.612.49$31,013
Apr 20124022,066101.652.00$44,989
Mar 20124502,335105.052.22$52,461
Feb 20122493,168101.102.57$33,316
Jan 20122951,94598.092.73$34,254
Dec 20112662,75696.873.24$34,696
Nov 20112474,41495.723.31$38,259
Oct 20114973,85284.983.65$56,289
Sep 20115014,29283.623.99$59,001
Aug 20115454,61283.404.15$64,590
Jul 20115703,72794.144.52$70,496
Jun 20114592,70592.904.64$55,192
May 20114844,09198.134.40$65,515
Apr 20114964,546105.964.33$72,255
Mar 20114154,40796.364.06$57,870
Feb 20114152,59485.644.18$46,383
Jan 20114111,66286.504.59$43,178
Dec 20106041,51885.734.35$58,381
Nov 20104523,15980.843.80$48,529
Oct 20104274,13578.103.51$47,858
Sep 20103553,36372.633.98$39,167
Aug 20102225,66973.684.42$41,410
Jul 20101152,94872.554.74$22,306
Jun 20101183,67070.364.91$26,324
May 20101053,75671.124.24$23,375
Apr 2010744,69581.694.12$25,401
Mar 2010171,28478.394.39$6,968
Feb 2010714,85373.585.44$31,636
Jan 2010466374.365.96$4,252
Dec 20097071.445.48$500
Nov 20095911374.593.75$4,825
Oct 200925618472.544.11$19,327
Sep 200910111265.543.06$6,963
Aug 20098226567.423.22$6,381
Jul 2009039861.133.46$1,379
Jun 20092001,42666.163.90$18,786
May 200910644554.743.93$7,549
Apr 2009709646.773.59$3,618
Mar 20096220742.144.06$3,453
Feb 20096513532.814.63$2,758
Jan 20096313935.865.37$3,006
Dec 20086413337.105.98$3,169
Nov 20086411255.496.86$4,320
Oct 20086612875.246.92$5,852
Sep 200863118101.767.88$7,340
Aug 200869134114.228.48$9,018
Jul 2008116135131.0811.39$16,743
Jun 2008222235131.3313.03$32,218
May 20080577123.1711.57$6,678
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20074062.007.55$248
May 200714158.747.85$830
Apr 200740159.617.81$2,392
Mar 200771356.927.30$4,063
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 200687060.085.04$5,227
Aug 20061053568.717.34$7,471
Jul 200603969.376.34$247
Jun 2006922666.286.38$6,264
May 2006923766.016.42$6,311
Apr 20062793964.397.36$18,252
Mar 2006944056.707.08$5,613
Feb 20062743657.597.75$16,059
Jan 20062892560.598.93$17,734
Dec 20053397554.9413.42$19,631
Nov 200536726954.6910.59$22,920
Oct 20055277358.3413.80$31,752
Sep 200534717261.4512.08$23,401
Aug 20053247461.519.80$20,654
Jul 20053584855.697.84$20,314
Jun 20053525152.337.38$18,797
May 200528119145.226.65$13,977
Apr 200532117549.207.36$17,081
Mar 200536816450.377.15$19,710
Feb 20054076045.226.31$18,783
Jan 200541810443.166.32$18,698
Dec 200444811239.866.75$18,613
Nov 200431612345.286.33$15,087
Oct 200436718449.706.52$19,439
Sep 200449415543.245.28$22,180
Aug 200433519142.375.55$15,254
Jul 200437416838.286.08$15,339
Jun 200439417236.106.43$15,330
May 200453616637.486.49$21,167
Apr 200439410534.475.86$14,196
Mar 200454515134.365.53$19,561
Feb 200421416132.455.51$7,831
Jan 200419010632.036.30$6,753
Dec 200335810230.266.30$11,476
Nov 200345410328.804.60$13,549
Oct 200344112528.174.76$13,018
Sep 200322611926.314.75$6,511
Aug 200336210829.765.13$11,327
Jul 200340511629.415.17$12,511
Jun 20032578028.565.98$7,819
May 200327111926.595.97$7,917
Apr 2003409226.675.41$1,564
Mar 2003574631.146.10$2,055
Feb 200312310733.487.93$4,966
Jan 2003230130.315.58$6,977
Dec 200213811126.914.85$4,252
Nov 20021798024.664.14$4,745
Oct 200211313226.464.23$3,548
Sep 20021527427.443.64$4,440
Aug 200212915025.963.16$3,823
Jul 20023518224.583.06$1,418
Jun 200217224823.733.34$4,909
May 200258813724.663.58$14,991
Apr 200244115323.653.51$10,967
Mar 200218113822.003.10$4,410
Feb 20022455918.222.38$4,604
Jan 200239412917.172.38$7,071
Dec 2001214116.932.36$3,625
Nov 2001140118.072.41$2,532
Oct 200137119.782.53$734
Sep 20014424.262.25$106
Aug 20013124.873.05$78
Jul 20015151023.933.20$2,851
Jun 2001661,07724.563.82$5,740
May 20015089625.524.31$5,135
Apr 200111949524.685.34$5,578
Mar 2001621,68124.545.38$10,559
Feb 2001241,75627.755.77$10,793
Jan 2001983,16027.478.40$29,232
Dec 200004526.889.12$411
Nov 20001805632.215.66$6,115
Oct 2000861,44031.235.15$10,095
Sep 20000031.875.19$0
Aug 20000029.644.54$0
Jul 20006126628.534.09$2,828
Jun 2000753,33129.304.40$16,845
May 2000431,10227.263.68$5,227
Apr 20005314324.513.12$1,745
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 2000426125.272.48$1,213
Dec 19992015124.282.42$852
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19999015.102.21$136
Mar 1999669012.471.84$8,342
Feb 19990159.981.82$27
Jan 19996421710.381.90$1,077
Dec 1998805569.201.77$1,722
Nov 1998203210.892.19$288
Oct 19984470812.421.97$1,941
Sep 1998114412.592.08$1,444
Aug 1998108311.301.91$1,226
Jul 199826414311.742.24$3,419
Jun 1998671,73511.242.24$4,635
May 19981181,44412.622.21$4,675
Apr 19988485513.042.51$3,237
Mar 199810548612.802.31$2,466
Feb 199811333013.952.30$2,335
Jan 199811351714.702.15$2,775
Dec 19979068816.322.41$3,128
Nov 19978119518.193.09$2,076
Oct 19971929819.253.15$1,304
Sep 199711940017.742.95$3,293
Aug 199713359117.862.55$3,885
Jul 19974456117.582.25$2,034
Jun 199710836417.242.26$2,684
May 199716334418.972.31$3,886
Apr 199720342017.882.08$4,504
Mar 199734224918.951.94$6,964
Feb 199748721420.492.21$10,451
Jan 199746915423.483.54$11,557
Dec 199641431623.32$9,654
Nov 199647336121.97$10,392
Oct 19963251,49023.31$7,576
Sep 19963382,50022.22$7,510
Aug 19964181,94920.26$8,469
Jul 199623518419.55$4,594
Jun 199625630718.73$4,795
May 19963161,38419.43$6,140
Apr 19961092,72121.51$2,345
Mar 199624118919.38$4,671
Feb 199629535316.98$5,009
Jan 199629224517.07$4,984
Dec 19953063,20417.19$5,260
Nov 19952885,54916.00$4,608
Oct 19952256,86415.43$3,472
Sep 19953583,35716.18$5,792
Aug 19952482,13315.92$3,948
Jul 19952292,89215.24$3,490
Jun 19952093,34816.41$3,430
May 19951923,70117.56$3,372
Apr 19952392,45017.73$4,237
Mar 19954412,83016.44$7,250
Feb 19952902,66416.58$4,808
Jan 19951352,85415.92$2,149
Dec 19942591,84815.03$3,893
Nov 19941281,34615.90$2,035
Oct 19942772,01615.58$4,316
Sep 19941792,11015.29$2,737
Aug 19942023,11116.13$3,258
Jul 19942132,72717.56$3,740
Jun 19942362,58017.09$4,033
May 19943382,44815.88$5,367
Apr 19942372,13014.14$3,351
Mar 19942521,64112.46$3,140
Feb 199417880212.50$2,225
Jan 199427857912.66$3,519
Dec 19932863,15512.33$3,526
Nov 19934264,28814.49$6,173
Oct 19935241,24015.85$8,305
Sep 19933665,48315.03$5,501
Aug 19932823,65815.66$4,416
Jul 199327390115.46$4,221
Jun 19934512,38916.79$7,572
May 19934973,33417.68$8,787
Apr 19934821,52718.05$8,700
Mar 19936681,07218.14$12,118
Feb 19936851,24117.90$12,262
Jan 199350579816.93$8,550

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.

Feb 2016 — as filed, then multipliedworked
Oil                   55 bbl  × $ 26.47 =     $1,456
Casinghead gas         0 Mcf  × $  2.06 =         $0

────────────────────────────────────────────────────
Month total                                   $1,456

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/954 is the state's own key, not one this site invented.