O'CONNOR, MARY ELLEN

Operated by O'CONNOR ENERGY MANAGEMENT, LLC (P-5 617018) in the MARY ELLEN OCONNOR (FS-75) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 7933District 02Field 57911468OilCasinghead gasSaveExport
Value, all time
$4.2 M
Oct 1993 – May 2026
Value, last 12 filed months
$0
at the published price for each month
Months reported
392
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 10 leases and 29 wells, and the rule below applies to all of them.

Discovered
1953-11-03
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 field rule took effect on 1953-11-25.

The Commission's schedule remark for this field reads: CLOSER THAN 150 FT. FROM ANY OTHER WELL REGARDLESS OF RESERVOIR.

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
OilDisposition191,842 bbl$3,727,687
Casinghead gasProduction499,669 Mcf$502,967
Total$4,230,655

315,391 Mcf of this lease's gas, across 39 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 (16)

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 28.2954, -97.2089. A lease has no coordinate of its own — that point is the mean of its wells, and they span 26.9 miles, so treat it as the lease's centre and not as its location.

28.46001, -97.06840 · 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%
16 of 16 wells
With a plug date
100.0%
16 of 16 wells
Median depth
6,030 ft
16 wells filed one
Completion to plug
18.9 years
median over 16 wells

What the state filed about each well

On the RRC proration schedule
16100.0%
A plug date is filed
16100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
16100.0%
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, 16 of 16 wells. Median 6,030 ft, with the middle half between 6,022 and 6,054 ft; the shallowest is 6,000 ft and the deepest 6,761 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, 16 of 16 wells, Feb 1954 – Jun 2006. 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 1954 – Jun 2006
16 of 16 wells
Plug dates filed
Aug 2005 – Aug 2019
16 of 16 wells

Last completion to plug: a median of 18.9 years across the 16 wells that filed both dates, with the middle half between 12.8 years and 19.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

16 wells

42-39101895A 86,028 ftJun 2006Apr 2014Yes
42-4693288516,761 ftFeb 2006Aug 2019Yes
42-39101938B 96,020 ftApr 2001May 2014Yes
42-39101966C 106,055 ftMay 1998Mar 2014Yes
42-39101881B 116,202 ftApr 1997May 2006Yes
42-391019393E6,053 ftJul 1995Mar 2014Yes
42-39101893A 36,030 ftMay 1995Aug 2005Yes
42-39101891A 16,023 ftApr 1995May 2014Yes
42-39101875B 16,000 ftOct 1994May 2006Yes
42-39101892A 26,020 ftAug 1994Apr 2019Yes
42-39101935B 46,030 ftAug 1994Mar 2014Yes
42-39101887E 66,500 ftAug 1994Feb 2014Yes
42-39101906106,037 ftJun 1994Apr 2014Yes
42-39101914A 216,000 ftMar 1994Apr 2014Yes
42-39101894A 66,030 ftNov 1980Nov 2013Yes
42-39101896A 96,025 ftFeb 1954May 2014Yes

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 (392)

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

392 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 201688033.011.79$2,905
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 2015125038.792.17$4,849
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 2015159040.162.87$6,385
Jul 201570048.152.95$3,371
Jun 2015166056.152.88$9,321
May 2015183055.212.96$10,103
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 2014164054.693.59$8,969
Nov 20140070.464.25$0
Oct 201499078.303.90$7,752
Sep 20140086.164.05$0
Aug 201479089.394.04$7,062
Jul 201467096.564.18$6,470
Jun 20140098.164.74$0
May 201491094.734.73$8,620
Apr 2014134095.944.81$12,856
Mar 201491095.895.06$8,726
Feb 201452097.406.19$5,065
Jan 201472090.404.86$6,509
Dec 2013105091.824.35$9,641
Nov 20130088.853.74$0
Oct 2013103097.423.78$10,034
Sep 201300104.113.72$0
Aug 2013850104.253.52$8,861
Jul 2013900102.523.72$9,227
Jun 20130094.403.93$0
May 201376094.834.15$7,207
Apr 2013101093.964.28$9,490
Mar 2013176093.623.91$16,477
Feb 20130091.233.42$0
Jan 201358091.603.42$5,313
Dec 2012184086.773.42$15,966
Nov 20120086.953.62$0
Oct 2012176089.383.40$15,731
Sep 20120094.672.92$0
Aug 2012169092.662.91$15,660
Jul 2012180085.133.02$15,323
Jun 20120079.822.52$0
May 2012175091.612.49$16,032
Apr 201200101.652.00$0
Mar 20121750105.052.22$18,384
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 2011181096.873.24$17,533
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 2011165094.144.52$15,533
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 20111700105.964.33$18,013
Mar 20110096.364.06$0
Feb 2011179085.644.18$15,330
Jan 2011256086.504.59$22,144
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 2010165081.694.12$13,479
Mar 2010149078.394.39$11,680
Feb 20100073.585.44$0
Jan 2010170074.365.96$12,641
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 2009179067.423.22$12,068
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 2009169054.743.93$9,251
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 2009170035.865.37$6,096
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 20081640114.228.48$18,732
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 2008171090.388.21$15,455
Dec 2007180088.337.30$15,899
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 2007179070.906.39$12,691
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
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 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 2006182066.286.38$12,063
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 200467037.486.49$2,511
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 2003339031.146.10$10,556
Feb 20030033.487.93$0
Jan 20031,499030.315.58$45,435
Dec 20022442,54326.914.85$18,909
Nov 2002982,12824.664.14$11,220
Oct 200202,12326.464.23$8,978
Sep 20023211,42027.443.64$13,970
Aug 20023211,27825.963.16$12,377
Jul 20024892,46324.583.06$19,561
Jun 20020023.733.34$0
May 200267024.663.58$1,652
Apr 20020023.653.51$0
Mar 2002339022.003.10$7,458
Feb 20020018.222.38$0
Jan 20021,0171,91917.172.38$22,021
Dec 20014971,37516.932.36$11,665
Nov 20014001,37018.072.41$10,524
Oct 20013011,35519.782.53$9,380
Sep 20014101,31524.262.25$12,907
Aug 20011531,32024.873.05$7,835
Jul 20014921,28323.933.20$15,875
Jun 20013051,46724.563.82$13,101
May 20014411,33825.524.31$17,018
Apr 20014611,11524.685.34$17,326
Mar 20013011,10924.545.38$13,349
Feb 20014901,01527.755.77$19,451
Jan 200149093127.478.40$21,280
Dec 200030180426.889.12$15,425
Nov 200014050532.215.66$7,367
Oct 200015162331.235.15$7,921
Sep 20004381,00331.875.19$19,161
Aug 20006021,01429.644.54$22,448
Jul 20005091,03028.534.09$18,734
Jun 20006601,03029.304.40$23,867
May 20005001,02027.263.68$17,383
Apr 20006011,15524.513.12$18,329
Mar 20003001,09528.422.86$11,657
Feb 20004901,11027.622.73$16,560
Jan 20004902,51325.272.48$18,616
Dec 19995243,02424.282.42$20,052
Nov 19996852,69323.192.43$22,440
Oct 19996122,26020.982.80$19,176
Sep 19995022,35721.752.62$17,091
Aug 19996052,36519.262.88$18,453
Jul 19991,0012,47417.892.37$23,777
Jun 19993002,60015.942.36$10,923
May 19999152,14115.792.32$19,417
Apr 19998452,03815.102.21$17,260
Mar 19995052,30612.471.84$10,537
Feb 19996011,7529.981.82$9,183
Jan 19999412,45210.381.90$14,426
Dec 19981,0102,3659.201.77$13,486
Nov 19981,1162,55010.892.19$17,727
Oct 19981,0112,74012.421.97$17,952
Sep 19982,2012,84512.592.08$33,636
Aug 19981,8253,32011.301.91$26,955
Jul 19981,4064,22711.742.24$25,963
Jun 19981,8754,24111.242.24$30,563
May 19981,2004,28612.622.21$24,600
Apr 19981,1273,34413.042.51$23,074
Mar 19981,6743,53612.802.31$29,593
Feb 19981,6303,32513.952.30$30,383
Jan 19981,7233,87414.702.15$33,676
Dec 19971,7554,88316.322.41$40,415
Nov 19971,7135,31118.193.09$47,561
Oct 19971,7325,38719.253.15$50,309
Sep 19971,9545,79217.742.95$51,779
Aug 19972,0475,92717.862.55$51,701
Jul 19972,9686,79517.582.25$67,445
Jun 19972,0796,46917.242.26$50,444
May 19971,9975,27518.972.31$50,060
Apr 19971,7716,83417.882.08$45,899
Mar 19972,2467,17518.951.94$56,475
Feb 19972,3336,62320.492.21$62,413
Jan 19972,3296,92323.483.54$79,190
Dec 19962,4585,87223.32$57,321
Nov 19962,6976,57021.97$59,253
Oct 19962,81810,29823.31$65,688
Sep 19963,2029,94122.22$71,148
Aug 19962,00310,73520.26$40,581
Jul 19962,2309,27019.55$43,597
Jun 19962,8759,26418.73$53,849
May 19962,6259,47419.43$51,004
Apr 19961,6869,60021.51$36,266
Mar 19962,4119,60019.38$46,725
Feb 19961,2029,50516.98$20,410
Jan 19961,19310,16017.07$20,365
Dec 19952,00010,46817.19$34,380
Nov 19951,5992,53016.00$25,584
Oct 19951,78016,08015.43$27,465
Sep 19952,35215,39316.18$38,055
Aug 19951,68810,12815.92$26,873
Jul 19952,1889,14015.24$33,345
Jun 19952,3308,98516.41$38,235
May 19952,5149,28317.56$44,146
Apr 19952,16210,72617.73$38,332
Mar 19952,99915,80016.44$49,304
Feb 19952,6548,75916.58$44,003
Jan 19954,9917,54815.92$79,457
Dec 19946,8878,69815.03$103,512
Nov 19946,4948,68615.90$103,255
Oct 19946,9844,59215.58$108,811
Sep 19946,1154,50915.29$93,498
Aug 19945,6804,80116.13$91,618
Jul 19946,2959,45117.56$110,540
Jun 19945,4947,35317.09$93,892
May 19943,9176,53915.88$62,202
Apr 19944,4836,62314.14$63,390
Mar 19944,6847,11112.46$58,363
Feb 19945,6184,71412.50$70,225
Jan 19945461,29612.66$6,912
Dec 19931841,08812.33$2,269
Nov 199302,52014.49$0
Oct 199302,28115.85$0

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.

Mar 2016 — as filed, then multipliedworked
Oil                   88 bbl  × $ 33.01 =     $2,905
Casinghead gas         0 Mcf  × $  1.79 =         $0

────────────────────────────────────────────────────
Month total                                   $2,905

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/7933 is the state's own key, not one this site invented.