OCONNOR, MARY ELLEN

Operated by DOLPHIN PETROLEUM, LP (P-5 222226) in the WOODSBORO, SOUTH (4200) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 5502District 02Field 98630500NGPA filingOilCasinghead gasSaveExport
Value, all time
$1.3 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 18 leases and 73 wells, and the rule below applies to all of them.

Discovered
1975-03-05
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

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
NGPA2none

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
OilDisposition44,493 bbl$1,056,844
Casinghead gasProduction123,087 Mcf$287,066
Total$1,343,909

67,192 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 (10)

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 28.2540, -97.2211. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

28.25317, -97.22092 · 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%
10 of 10 wells
With a plug date
100.0%
10 of 10 wells
Median depth
6,050 ft
10 wells filed one
Completion to plug
35.3 years
median over 10 wells

What the state filed about each well

On the RRC proration schedule
10100.0%
A plug date is filed
10100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
10100.0%
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, 10 of 10 wells. Median 6,050 ft, with the middle half between 5,700 and 6,400 ft; the shallowest is 5,600 ft and the deepest 8,425 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, 10 of 10 wells, Nov 1977 – Oct 1992. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Nov 1977 – Oct 1992
10 of 10 wells
Plug dates filed
Jan 2005 – Apr 2022
10 of 10 wells

Last completion to plug: a median of 35.3 years across the 10 wells that filed both dates, with the middle half between 30.3 years and 38.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

10 wells

42-39101867146,000 ftOct 1992Oct 2021Yes
42-39101848105,600 ftMar 1988Jan 2005Yes
42-39101871198,425 ftJan 1988Mar 2022Yes
42-39130563396,400 ftDec 1986Mar 2022Yes
42-39130576366,100 ftDec 1986Mar 2022Yes
42-3910368055,600 ftJan 1984Mar 2022Yes
42-39130584456,400 ftDec 1983Apr 2022Yes
42-3910184795,600 ftDec 1982Feb 2022Yes
42-39101851186,000 ftFeb 1979Mar 2022Yes
42-39130586436,400 ftNov 1977Jan 2005Yes

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 2016299641.622.92$1,488
Jun 2016579645.352.69$2,843
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 2016308533.011.79$1,143
Feb 2016309626.472.06$992
Jan 2016309627.352.36$1,047
Dec 20156314532.362.00$2,329
Nov 20156216438.792.17$2,760
Oct 20153019043.552.43$1,768
Sep 20155921342.992.76$3,124
Aug 20156020140.162.87$2,987
Jul 20156120648.152.95$3,544
Jun 20158955256.152.88$6,589
May 20155922955.212.96$3,934
Apr 20156110149.822.71$3,312
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 201408170.464.25$344
Oct 201408878.303.90$343
Sep 2014010586.164.05$425
Aug 201408889.394.04$355
Jul 201406296.564.18$259
Jun 201408998.164.74$422
May 201409294.734.73$435
Apr 201408495.944.81$404
Mar 201406395.895.06$319
Feb 201409497.406.19$582
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 201309988.853.74$370
Oct 201309997.423.78$374
Sep 20130102104.113.72$379
Aug 20130100104.253.52$352
Jul 20130101102.523.72$375
Jun 201308994.403.93$350
May 201309994.834.15$411
Apr 201309893.964.28$420
Mar 201309993.623.91$387
Feb 201308191.233.42$277
Jan 2013010891.603.42$369
Dec 2012010986.773.42$373
Nov 2012010386.953.62$373
Oct 2012013789.383.40$466
Sep 2012011294.672.92$327
Aug 2012010992.662.91$317
Jul 2012010885.133.02$326
Jun 2012015679.822.52$393
May 2012012391.612.49$306
Apr 20120181101.652.00$361
Mar 20120198105.052.22$440
Feb 20120135101.102.57$347
Jan 2012011598.092.73$314
Dec 2011012796.873.24$411
Nov 2011012195.723.31$401
Oct 2011011484.983.65$416
Sep 2011015583.623.99$618
Aug 20111211483.404.15$1,474
Jul 201108594.144.52$384
Jun 201107692.904.64$353
May 201106498.134.40$282
Apr 20110126105.964.33$546
Mar 2011012896.364.06$519
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 2010011780.843.80$444
Oct 20101212678.103.51$1,379
Sep 20101512772.633.98$1,595
Aug 201023073.684.42$1,695
Jul 201013072.554.74$943
Jun 201022070.364.91$1,548
May 20102415171.124.24$2,346
Apr 20102016181.694.12$2,298
Mar 20102117478.394.39$2,410
Feb 20101412873.585.44$1,727
Jan 20102215074.365.96$2,531
Dec 20092010271.445.48$1,988
Nov 20091316874.593.75$1,600
Oct 20092316872.544.11$2,359
Sep 20092318565.543.06$2,074
Aug 20092419567.423.22$2,246
Jul 20092218261.133.46$1,975
Jun 20092716366.163.90$2,421
May 20092718754.743.93$2,212
Apr 20092618146.773.59$1,865
Mar 20093218142.144.06$2,083
Feb 20092219332.814.63$1,616
Jan 20092226135.865.37$2,191
Dec 20083728737.105.98$3,088
Nov 20083030955.496.86$3,785
Oct 20083628775.246.92$4,695
Sep 200823284101.767.88$4,578
Aug 200836363114.228.48$7,191
Jul 200822335131.0811.39$6,699
Jun 200836329131.3313.03$9,016
May 200821324123.1711.57$6,337
Apr 200823281110.3110.45$5,475
Mar 200843297101.909.66$7,252
Feb 20082928792.538.77$5,201
Jan 20081528090.388.21$3,653
Dec 20073828688.337.30$5,445
Nov 20072231391.677.29$4,299
Oct 20073628782.856.92$4,969
Sep 20073629575.846.24$4,572
Aug 20076827369.066.39$6,440
Jul 20071129770.906.39$2,677
Jun 20074525362.007.55$4,700
May 20075129358.747.85$5,295
Apr 20075929959.617.81$5,851
Mar 20073724956.927.30$3,924
Feb 20075026055.108.22$4,891
Jan 20075724250.306.73$4,495
Dec 20064324756.656.92$4,145
Nov 2006547854.207.62$3,521
Oct 20066635154.906.01$5,734
Sep 20065332860.085.04$4,836
Aug 20065543868.717.34$6,994
Jul 20066726469.376.34$6,322
Jun 20066923866.286.38$6,093
May 20066924266.016.42$6,110
Apr 200610627364.397.36$8,835
Mar 20067228056.707.08$6,066
Feb 20067421957.597.75$5,959
Jan 20067427460.598.93$6,931
Dec 20057524554.9413.42$7,407
Nov 200513724454.6910.59$10,076
Oct 200516624758.3413.80$13,092
Sep 200517355261.4512.08$17,298
Aug 200516656861.519.80$15,775
Jul 200518755655.697.84$14,775
Jun 200518161452.337.38$14,004
May 200517853845.226.65$11,627
Apr 2005812,41049.207.36$21,724
Mar 20051743,24750.377.15$31,996
Feb 200569045.226.31$3,120
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 200415137742.375.55$8,490
Jul 200420034538.286.08$9,755
Jun 200419742836.106.43$9,865
May 200415325237.486.49$7,371
Apr 200414123934.475.86$6,260
Mar 200418224234.365.53$7,592
Feb 200419923532.455.51$7,752
Jan 200421425232.036.30$8,442
Dec 200323125930.266.30$8,622
Nov 200311422428.804.60$4,313
Oct 200324717828.174.76$7,805
Sep 200319026126.314.75$6,238
Aug 200321434529.765.13$8,138
Jul 200318627329.415.17$6,882
Jun 200324530028.565.98$8,792
May 200322534026.595.97$8,013
Apr 200319515126.675.41$6,017
Mar 200316827831.146.10$6,926
Feb 200319227033.487.93$8,568
Jan 200326234930.315.58$9,889
Dec 200226836126.914.85$8,964
Nov 200221432224.664.14$6,609
Oct 200223824326.464.23$7,325
Sep 200222624527.443.64$7,092
Aug 200221924725.963.16$6,467
Jul 200223432024.583.06$6,731
Jun 200218223323.733.34$5,097
May 200217919624.663.58$5,117
Apr 200225219523.653.51$6,645
Mar 200221122922.003.10$5,353
Feb 200217725618.222.38$3,833
Jan 200222220817.172.38$4,306
Dec 200122421916.932.36$4,310
Nov 200122421218.072.41$4,558
Oct 200122523319.782.53$5,040
Sep 200122322024.262.25$5,905
Aug 200122024024.873.05$6,204
Jul 200122023523.933.20$6,016
Jun 200120324224.563.82$5,911
May 200130425825.524.31$8,869
Apr 200123124724.685.34$7,019
Mar 200124226624.545.38$7,369
Feb 200122022727.755.77$7,414
Jan 200124127127.478.40$8,896
Dec 200023425126.889.12$8,580
Nov 200024920732.215.66$9,192
Oct 200024621531.235.15$8,789
Sep 200022623531.875.19$8,421
Aug 200025924429.644.54$8,785
Jul 200022823928.534.09$7,482
Jun 200024522029.304.40$8,146
May 200024424727.263.68$7,560
Apr 200022422924.513.12$6,204
Mar 200023319628.422.86$7,182
Feb 200022619727.622.73$6,779
Jan 200026021725.272.48$7,108
Dec 199923223824.282.42$6,210
Nov 199924621223.192.43$6,221
Oct 199926123620.982.80$6,137
Sep 199924721921.752.62$5,946
Aug 199925523919.262.88$5,599
Jul 199923823217.892.37$4,808
Jun 199922419515.942.36$4,031
May 199925223915.792.32$4,534
Apr 199935821315.102.21$5,876
Mar 19992288612.471.84$3,001
Feb 1999229859.981.82$2,440
Jan 199922639510.381.90$3,096
Dec 19982153079.201.77$2,522
Nov 199822738210.892.19$3,307
Oct 199820831712.421.97$3,208
Sep 199821231312.592.08$3,321
Aug 199820032611.301.91$2,882
Jul 199823234811.742.24$3,502
Jun 199816535011.242.24$2,638
May 199822234912.622.21$3,572
Apr 199820933813.042.51$3,572
Mar 199822938712.802.31$3,825
Feb 199819431313.952.30$3,426
Jan 199822132214.702.15$3,943
Dec 199720037616.322.41$4,171
Nov 199724035518.193.09$5,462
Oct 199722832319.253.15$5,406
Sep 199723835517.742.95$5,271
Aug 199726650517.862.55$6,041
Jul 199722241517.582.25$4,835
Jun 199723643617.242.26$5,053
May 199726655018.972.31$6,316
Apr 199724347917.882.08$5,342
Mar 199725749418.951.94$5,828
Feb 199719743920.492.21$5,005
Jan 199727845723.483.54$8,145
Dec 199622248223.32$5,177
Nov 199623847721.97$5,229
Oct 199624251623.31$5,641
Sep 199624649522.22$5,466
Aug 199625232920.26$5,106
Jul 199628934319.55$5,650
Jun 199619336618.73$3,615
May 199627041119.43$5,246
Apr 19962641,46321.51$5,679
Mar 19963011,91519.38$5,833
Feb 19962811,41216.98$4,771
Jan 19963421,71617.07$5,838
Dec 19953661,42317.19$6,292
Nov 19953491,33216.00$5,584
Oct 19953761,34315.43$5,802
Sep 19953651,29116.18$5,906
Aug 19953421,27215.92$5,445
Jul 19953711,28215.24$5,654
Jun 19953661,25116.41$6,006
May 19954311,22717.56$7,568
Apr 199543194617.73$7,642
Mar 199538789516.44$6,362
Feb 199530480816.58$5,040
Jan 19952791,09115.92$4,442
Dec 19943101,44015.03$4,659
Nov 19943521,37515.90$5,597
Oct 19944401,27915.58$6,855
Sep 19942981,09415.29$4,556
Aug 199429493116.13$4,742
Jul 199434291017.56$6,006
Jun 199435184917.09$5,999
May 19945521,60115.88$8,766
Apr 19945781,44614.14$8,173
Mar 19945341,26612.46$6,654
Feb 19944511,35712.50$5,638
Jan 19945711,29112.66$7,229
Dec 19934881,82712.33$6,017
Nov 19935101,90814.49$7,390
Oct 19934691,91615.85$7,434
Sep 19935682,13615.03$8,537
Aug 19935722,66315.66$8,958
Jul 19935732,71715.46$8,859
Jun 19935071,62116.79$8,513
May 19935232,55417.68$9,247
Apr 19935832,92118.05$10,523
Mar 19936893,31718.14$12,498
Feb 19937793,78117.90$13,944
Jan 199362390616.93$10,547

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                   29 bbl  × $ 41.62 =     $1,207
Casinghead gas        96 Mcf  × $  2.92 =       $281

────────────────────────────────────────────────────
Month total                                   $1,488

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/5502 is the state's own key, not one this site invented.