O'CONNER, MARY ELLEN

Operated by DOLPHIN PETROLEUM, LP (P-5 222226) in the MARY ELLEN OCONNOR (FQ-30) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 6698District 02Field 57911260OilCasinghead gasSaveExport
Value, all time
$5.8 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 7 leases and 11 wells, and the rule below applies to all of them.

Discovered
1962-09-20
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition174,018 bbl$4,843,404
Casinghead gasProduction390,885 Mcf$934,973
Total$5,778,377

170,571 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 (3)

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 28.2549, -97.2201. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.2 miles.

28.25489, -97.22276 · 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%
3 of 3 wells
With a plug date
100.0%
3 of 3 wells
Median depth
6,400 ft
3 wells filed one
Completion to plug
29.3 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
3100.0%
A plug date is filed
3100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
3100.0%
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

Between 6,000 and 6,400 ft, median 6,400 ft, over the 3 wells that filed a depth.

Completions filed
Sep 1988 – Dec 2004
3 of 3 wells
Plug dates filed
Nov 2021 – Aug 2022
3 of 3 wells

Last completion to plug: a median of 29.3 years across the 3 wells that filed both dates, with the middle half between 23.5 years and 31.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-39131250546,000 ftDec 2004Aug 2022Yes
42-39130568386,400 ftJul 1992Nov 2021Yes
42-39130564406,400 ftSep 1988Aug 2022Yes

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 2016191541.622.92$835
Jun 20163812345.352.69$2,054
May 20162110342.521.99$1,098
Apr 20164010936.561.99$1,679
Mar 20162010933.011.79$856
Feb 20162010126.472.06$738
Jan 20162015427.352.36$911
Dec 20154221532.362.00$1,789
Nov 20154122838.792.17$2,085
Oct 20152018843.552.43$1,327
Sep 20153922742.992.76$2,303
Aug 20154031040.162.87$2,497
Jul 20154141348.152.95$3,190
Jun 20156029756.152.88$4,225
May 20154043555.212.96$3,494
Apr 20154012849.822.71$2,339
Mar 20154315142.892.93$2,287
Feb 20154311344.662.98$2,257
Jan 20154410943.433.10$2,249
Dec 2014669354.693.59$3,944
Nov 201410611270.464.25$7,945
Oct 2014849278.303.90$6,936
Sep 201405686.164.05$227
Aug 2014638889.394.04$5,987
Jul 2014609896.564.18$6,203
Jun 2014618398.164.74$6,381
May 20148310194.734.73$8,340
Apr 20146216895.944.81$6,756
Mar 20146512695.895.06$6,870
Feb 20146410897.406.19$6,902
Jan 20144311190.404.86$4,427
Dec 20134215591.824.35$4,531
Nov 20134110188.853.74$4,020
Oct 20136119297.423.78$6,668
Sep 201363176104.113.72$7,213
Aug 201340166104.253.52$4,755
Jul 201341101102.523.72$4,579
Jun 20134114894.403.93$4,453
May 20134116794.834.15$4,581
Apr 20134217693.964.28$4,700
Mar 2013429993.623.91$4,319
Feb 2013198991.233.42$2,038
Jan 20134112391.603.42$4,176
Dec 20121817586.773.42$2,160
Nov 20124116686.953.62$4,167
Oct 20124117489.383.40$4,256
Sep 20122018394.672.92$2,427
Aug 20124119392.662.91$4,360
Jul 20122126585.133.02$2,588
Jun 20124119979.822.52$3,774
May 20124225091.612.49$4,470
Apr 201222255101.652.00$2,745
Mar 201222261105.052.22$2,891
Feb 201241271101.102.57$4,842
Jan 20124915598.092.73$5,230
Dec 20114012796.873.24$4,286
Nov 20114315595.723.31$4,629
Oct 20117522884.983.65$7,205
Sep 20114219183.623.99$4,273
Aug 20112117883.404.15$2,490
Jul 201111117194.144.52$11,222
Jun 2011015092.904.64$696
May 20116912898.134.40$7,335
Apr 201195215105.964.33$10,998
Mar 20114425696.364.06$5,279
Feb 20112524785.644.18$3,173
Jan 20118224486.504.59$8,213
Dec 20106824285.734.35$6,882
Nov 20104523380.843.80$4,522
Oct 20103725278.103.51$3,774
Sep 20104425372.633.98$4,203
Aug 20100073.684.42$0
Jul 201039072.554.74$2,829
Jun 20107330170.364.91$6,614
May 20107330171.124.24$6,467
Apr 20109532281.694.12$9,088
Mar 201029334978.394.39$24,500
Feb 201022025573.585.44$17,575
Jan 201032531474.365.96$26,040
Dec 200930420471.445.48$22,836
Nov 200920533774.593.75$16,555
Oct 200943534472.544.11$32,969
Sep 200944339365.543.06$30,239
Aug 200942840467.423.22$30,156
Jul 200944840661.133.46$28,793
Jun 200958440266.163.90$40,203
May 200959256254.743.93$34,612
Apr 200960349446.773.59$29,975
Mar 200966943342.144.06$29,949
Feb 200946647032.814.63$17,467
Jan 200929461535.865.37$13,846
Dec 200850076237.105.98$23,105
Nov 200840690655.496.86$28,744
Oct 200848471075.246.92$41,331
Sep 2008316658101.767.88$37,339
Aug 2008489941114.228.48$63,836
Jul 2008304826131.0811.39$49,256
Jun 2008490856131.3313.03$75,508
May 2008287807123.1711.57$44,690
Apr 2008306641110.3110.45$40,456
Mar 2008575786101.909.66$66,188
Feb 200839469692.538.77$42,561
Jan 200820262590.388.21$23,385
Dec 200750768288.337.30$49,763
Nov 200730292391.677.29$34,415
Oct 200748874282.856.92$45,567
Sep 200748983175.846.24$42,275
Aug 200730569969.066.39$25,528
Jul 200760091670.906.39$48,391
Jun 200720371762.007.55$17,998
May 20076901,06858.747.85$48,910
Apr 20078031,10259.617.81$56,468
Mar 200749971756.927.30$33,639
Feb 200767393255.108.22$44,740
Jan 200777185950.306.73$44,560
Dec 200658081756.656.92$38,509
Nov 200682417254.207.62$45,971
Oct 20069171,08854.906.01$56,886
Sep 200655464760.085.04$36,543
Aug 200664176868.717.34$49,680
Jul 200678591769.376.34$60,272
Jun 200681269966.286.38$58,282
May 200683171866.016.42$59,467
Apr 200683894064.397.36$60,878
Mar 200666572056.707.08$42,805
Feb 200680065857.597.75$51,172
Jan 200693893960.598.93$65,222
Dec 200577982654.9413.42$53,879
Nov 200542368654.6910.59$30,398
Oct 200545780458.3413.80$37,753
Sep 20055141,60661.4512.08$50,984
Aug 20054961,50361.519.80$45,234
Jul 20055841,70955.697.84$45,928
Jun 20055951,15552.337.38$39,661
May 20057791,95445.226.65$48,223
Apr 20055188,59249.207.36$88,727
Mar 20056466,25450.377.15$77,286
Feb 2005471,17645.226.31$9,548
Jan 2005055843.166.32$3,528
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 200462042.375.55$2,627
Jul 20043043738.286.08$3,807
Jun 20044854436.106.43$5,232
May 20044543237.486.49$4,492
Apr 20048540034.475.86$5,273
Mar 200410940634.365.53$5,990
Feb 20047039332.455.51$4,437
Jan 20047331532.036.30$4,323
Dec 20035933430.266.30$3,890
Nov 20035131128.804.60$2,898
Oct 200312136428.174.76$5,141
Sep 20039634226.314.75$4,150
Aug 200310844629.765.13$5,502
Jul 20039231829.415.17$4,350
Jun 200312237028.565.98$5,698
May 200310842226.595.97$5,392
Apr 20038723826.675.41$3,607
Mar 20037235931.146.10$4,431
Feb 20039336133.487.93$5,975
Jan 200313646530.315.58$6,718
Dec 200213749226.914.85$6,075
Nov 200211044724.664.14$4,562
Oct 200212252126.464.23$5,431
Sep 200211048927.443.64$4,796
Aug 200210549325.963.16$4,286
Jul 20023858824.583.06$2,734
Jun 200214023.733.34$332
May 20024939524.663.58$2,624
Apr 20026542923.653.51$3,044
Mar 20029545322.003.10$3,496
Feb 200212677018.222.38$4,125
Jan 200229198817.172.38$7,344
Dec 20013961,11616.932.36$9,343
Nov 20014031,04818.072.41$9,803
Oct 20014011,11819.782.53$10,759
Sep 20013971,12224.262.25$12,157
Aug 20013521,14624.873.05$12,253
Jul 20013281,05723.933.20$11,228
Jun 20013061,11924.563.82$11,795
May 20014581,16025.524.31$16,685
Apr 20014241,10424.685.34$16,355
Mar 20015281,20724.545.38$19,446
Feb 20014811,02727.755.77$19,271
Jan 20015291,18427.478.40$24,476
Dec 20005541,05726.889.12$24,534
Nov 200064589132.215.66$25,817
Oct 200064896431.235.15$25,197
Sep 200059199531.875.19$23,996
Aug 20006751,05329.644.54$24,788
Jul 20006291,59128.534.09$24,452
Jun 20007081,47629.304.40$27,235
May 20007411,63827.263.68$26,227
Apr 20007261,85924.513.12$23,587
Mar 20008231,48628.422.86$27,639
Feb 20008791,67827.622.73$28,853
Jan 20001,0051,74625.272.48$29,727
Dec 19998681,88124.282.42$25,634
Nov 19999211,72123.192.43$25,547
Oct 19999811,95220.982.80$26,054
Sep 19999461,86021.752.62$25,447
Aug 19991,0312,37219.262.88$26,678
Jul 19999822,12717.892.37$22,614
Jun 19999511,83715.942.36$19,498
May 19991,0192,68315.792.32$22,317
Apr 19995722,20415.102.21$13,504
Mar 19999462,97812.471.84$17,271
Feb 19991,0163,1559.981.82$15,875
Jan 19991,3103,41010.381.90$20,077
Dec 19981,2532,6469.201.77$16,220
Nov 19981,3133,29710.892.19$21,505
Oct 19981,2162,74412.421.97$20,506
Sep 19981,2352,69112.592.08$21,153
Aug 19981,1762,81311.301.91$18,654
Jul 19981,3262,99511.742.24$22,268
Jun 19989523,00711.242.24$17,428
May 19981,2063,27612.622.21$22,448
Apr 19981,2093,16513.042.51$23,695
Mar 19981,3213,60412.802.31$25,232
Feb 19981,1172,93713.952.30$22,335
Jan 19981,2903,08714.702.15$25,615
Dec 19971,2283,72116.322.41$29,013
Nov 19971,2493,85018.193.09$34,609
Oct 19971,2863,84919.253.15$36,879
Sep 19971,2142,89517.742.95$30,091
Aug 19971,3903,22317.862.55$33,059
Jul 19971,4202,63217.582.25$30,878
Jun 19971,3942,78017.242.26$30,308
May 19971,4533,49618.972.31$35,634
Apr 19971,4233,06017.882.08$31,817
Mar 19971,4033,15218.951.94$32,699
Feb 19971,2522,77120.492.21$31,766
Jan 19971,3512,79123.483.54$41,601
Dec 19961,3872,91823.32$32,345
Nov 19961,3532,88421.97$29,725
Oct 19961,3413,14123.31$31,259
Sep 19961,2722,99922.22$28,264
Aug 19961,3723,47420.26$27,797
Jul 19961,4313,28719.55$27,976
Jun 19961,4213,60118.73$26,615
May 19961,4223,80919.43$27,629
Apr 19961,3872,81121.51$29,834
Mar 19961,5082,18619.38$29,225
Feb 19961,5172,82816.98$25,759
Jan 19961,5482,12917.07$26,424
Dec 19951,5434,59017.19$26,524
Nov 19951,4974,28116.00$23,952
Oct 19951,5744,32315.43$24,287
Sep 19951,5124,31116.18$24,464
Aug 19951,6034,51115.92$25,520
Jul 19951,6414,56515.24$25,009
Jun 19951,6074,42316.41$26,371
May 19951,6254,46917.56$28,535
Apr 19951,4683,92017.73$26,028
Mar 19951,7803,43916.44$29,263
Feb 19951,5391,48416.58$25,517
Jan 19951,8543,69415.92$29,516
Dec 19941,7534,03215.03$26,348
Nov 19941,6204,40415.90$25,758
Oct 19941,5964,62315.58$24,866
Sep 19941,5453,96415.29$23,623
Aug 19941,5524,49416.13$25,034
Jul 19941,6794,56017.56$29,483
Jun 19941,5564,67417.09$26,592
May 19941,5161,96615.88$24,074
Apr 19941,8153,13414.14$25,664
Mar 19942,0503,04412.46$25,543
Feb 19941,8132,98012.50$22,663
Jan 19942,0603,61412.66$26,080
Dec 19931,9763,13212.33$24,364
Nov 19931,7982,86414.49$26,053
Oct 19931,9953,21615.85$31,621
Sep 19931,8023,09015.03$27,084
Aug 19931,8173,39215.66$28,454
Jul 19931,8823,45815.46$29,096
Jun 19931,8503,50016.79$31,062
May 19931,9143,45217.68$33,840
Apr 19931,8423,30218.05$33,248
Mar 19931,9483,98018.14$35,337
Feb 19931,8573,45317.90$33,240
Jan 19931,9274,16616.93$32,624

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.

Jul 2016 — as filed, then multipliedworked
Oil                   19 bbl  × $ 41.62 =       $791
Casinghead gas        15 Mcf  × $  2.92 =        $44

────────────────────────────────────────────────────
Month total                                     $835

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/6698 is the state's own key, not one this site invented.