O'CONNOR, MARY ELLEN

Operated by DOLPHIN PETROLEUM, LP (P-5 222226) in the MARY ELLEN O'CONNOR (FS 97) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 5592District 02Field 57911525NGPA filingOilCasinghead gasSaveExport
Value, all time
$604 k
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 1 leases and 2 wells, and the rule below applies to all of them.

Discovered
1978-06-23
as the register files it
Field class
Oil
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA1none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition10,885 bbl$274,354
Casinghead gasProduction83,308 Mcf$329,384
Total$603,738

24,496 Mcf of this lease's gas, across 44 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 (2)

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 28.2485, -97.2111. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

28.24850, -97.21106 · 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%
2 of 2 wells
With a plug date
100.0%
2 of 2 wells
Median depth
7,447 ft
2 wells filed one
Completion to plug
40.6 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
2100.0%
A plug date is filed
2100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
2100.0%
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 6,400 and 8,493 ft, median 7,447 ft, over the 2 wells that filed a depth.

Completions filed
Jun 1978 – Sep 1984
2 of 2 wells
Plug dates filed
Nov 2021 – Jun 2022
2 of 2 wells

Last completion to plug: a median of 40.6 years across the 2 wells that filed both dates, with the middle half between 38.9 years and 42.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-39130587426,400 ftSep 1984Nov 2021Yes
42-39130583468,493 ftJun 1978Jun 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 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 201407889.394.04$315
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 20130101104.253.52$356
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 201125094.144.52$2,354
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 20080055.496.86$0
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 200800114.228.48$0
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 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 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 20065318954.207.62$4,312
Oct 20067310654.906.01$4,645
Sep 20065372260.085.04$6,821
Aug 20064779368.717.34$9,050
Jul 20065547969.376.34$6,854
Jun 20065645266.286.38$6,597
May 20065545866.016.42$6,573
Apr 20066552564.397.36$8,050
Mar 20065055256.707.08$6,745
Feb 20065542857.597.75$6,485
Jan 20066252860.598.93$8,473
Dec 20057547454.9413.42$10,479
Nov 20055647054.6910.59$8,039
Oct 20055548258.3413.80$9,858
Sep 2005571,07961.4512.08$16,536
Aug 2005561,12161.519.80$14,427
Jul 2005621,07955.697.84$11,916
Jun 2005601,15952.337.38$11,694
May 2005761,03945.226.65$10,347
Apr 2005437,56849.207.36$57,820
Mar 2005625,53250.377.15$42,704
Feb 200522045.226.31$995
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 20044652342.375.55$4,852
Jul 20045738738.286.08$4,537
Jun 20045848136.106.43$5,188
May 20046137537.486.49$4,722
Apr 20045736434.475.86$4,097
Mar 20047235934.365.53$4,459
Feb 20046834832.455.51$4,124
Jan 20046228832.036.30$3,800
Dec 20037329730.266.30$4,081
Nov 20033336028.804.60$2,605
Oct 20037141628.174.76$3,980
Sep 20035439726.314.75$3,306
Aug 20036252629.765.13$4,543
Jul 20035345029.415.17$3,886
Jun 20037050528.565.98$5,021
May 20036253026.595.97$4,814
Apr 20035738826.675.41$3,618
Mar 20035147431.146.10$4,478
Feb 20035544233.487.93$5,345
Jan 20037655130.315.58$5,379
Dec 20027755326.914.85$4,756
Nov 20026148624.664.14$3,515
Oct 20026833426.464.23$3,212
Sep 20026537027.443.64$3,129
Aug 20026237225.963.16$2,787
Jul 20026753124.583.06$3,273
Jun 20025233823.733.34$2,362
May 20025129424.663.58$2,311
Apr 20027226423.653.51$2,630
Mar 20026062622.003.10$3,262
Feb 20025144318.222.38$1,982
Jan 20026331817.172.38$1,837
Dec 20016430916.932.36$1,814
Nov 20016432418.072.41$1,936
Oct 20016438319.782.53$2,234
Sep 20016231624.262.25$2,216
Aug 20016237224.873.05$2,678
Jul 20016337423.933.20$2,703
Jun 20015836424.563.82$2,816
May 20018740625.524.31$3,969
Apr 20016638924.685.34$3,704
Mar 20016941324.545.38$3,914
Feb 20016235727.755.77$3,779
Jan 20016944427.478.40$5,624
Dec 20006742726.889.12$5,696
Nov 20007134232.215.66$4,222
Oct 20007034031.235.15$3,936
Sep 20006540431.875.19$4,167
Aug 20007441029.644.54$4,055
Jul 20006538528.534.09$3,429
Jun 20007036229.304.40$3,643
May 20006939527.263.68$3,334
Apr 20006536824.513.12$2,740
Mar 20006628128.422.86$2,679
Feb 20006526927.622.73$2,529
Jan 20007428425.272.48$2,574
Dec 19996730824.282.42$2,373
Nov 19997028023.192.43$2,305
Oct 19997331820.982.80$2,423
Sep 19996720721.752.62$1,999
Aug 19996922819.262.88$1,985
Jul 19996623117.892.37$1,729
Jun 19997019615.942.36$1,579
May 19998623915.792.32$1,913
Apr 19999621215.102.21$1,918
Mar 1999748112.471.84$1,072
Feb 199974879.981.82$897
Jan 19995727410.381.90$1,112
Dec 1998542129.201.77$873
Nov 19985726510.892.19$1,200
Oct 19985222212.421.97$1,083
Sep 19985321612.592.08$1,117
Aug 19985022711.301.91$998
Jul 19985724111.742.24$1,208
Jun 19984024111.242.24$989
May 19985426312.622.21$1,262
Apr 19984825613.042.51$1,267
Mar 19986928812.802.31$1,548
Feb 19985923613.952.30$1,366
Jan 19986323814.702.15$1,439
Dec 19975928016.322.41$1,638
Nov 19975426818.193.09$1,810
Oct 19977235319.253.15$2,498
Sep 19976142317.742.95$2,332
Aug 199710259617.862.55$3,344
Jul 199710548817.582.25$2,942
Jun 19979951917.242.26$2,878
May 19977964818.972.31$2,995
Apr 19977456617.882.08$2,502
Mar 1997852818.951.94$1,175
Feb 19979051320.492.21$2,976
Jan 19978754223.483.54$3,961
Dec 19969156723.32$2,122
Nov 19969156021.97$1,999
Oct 19969861123.31$2,284
Sep 19967558322.22$1,667
Aug 19967666220.26$1,540
Jul 199610269319.55$1,994
Jun 19967673418.73$1,423
May 19969274619.43$1,788
Apr 1996961,54621.51$2,065
Mar 19961041,50219.38$2,016
Feb 199612070816.98$2,038
Jan 19966277417.07$1,058
Dec 19956063317.19$1,031
Nov 19957258916.00$1,152
Oct 19957859615.43$1,204
Sep 19957657416.18$1,230
Aug 19957856615.92$1,242
Jul 19959257115.24$1,402
Jun 19959255416.41$1,510
May 19956441417.56$1,124
Apr 199512327117.73$2,181
Mar 19956459716.44$1,052
Feb 19958354016.58$1,376
Jan 19957156915.92$1,130
Dec 19946928715.03$1,037
Nov 19949627515.90$1,526
Oct 19945725215.58$888
Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940017.56$0
Jun 19940017.09$0
May 19945220515.88$826
Apr 19948624114.14$1,216
Mar 19948925512.46$1,109
Feb 19947644312.50$950
Jan 19949051512.66$1,139
Dec 19938652212.33$1,060
Nov 19937441314.49$1,072
Oct 19938546215.85$1,347
Sep 19938547515.03$1,278
Aug 19938148415.66$1,268
Jul 19938549415.46$1,314
Jun 19938250016.79$1,377
May 19938349317.68$1,467
Apr 19938250818.05$1,480
Mar 19938453018.14$1,524
Feb 19937642617.90$1,360
Jan 19938555616.93$1,439

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.

Aug 2014 — as filed, then multipliedworked
Oil                    0 bbl  × $ 89.39 =         $0
Casinghead gas        78 Mcf  × $  4.04 =       $315

────────────────────────────────────────────────────
Month total                                     $315

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/5592 is the state's own key, not one this site invented.