OCONNOR, THOS.

Operated by GRETA OPERATING COMPANY LLC (P-5 332754) in the GRETA (4400) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 3990District 02Field 36867780NGPA filingOilCasinghead gasSaveExport
Value, all time
$9.3 M
Jan 1993 – May 2026
Value, last 12 filed months
$143 k
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 63 leases and 296 wells, and the rule below applies to all of them.

Discovered
1963-05-22
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 25 acres. The field rule took effect on 2020-12-08.

The Commission's schedule remark for this field reads: CHANGED MIN. ACRES FROM 25 TO 40, AND ADDED OPTIONAL ACRES.

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
OilDisposition147,096 bbl$9,179,127
Casinghead gasProduction51,649 Mcf$169,964
Total$9,349,091

Wells on this lease (7)

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 28.3782, -97.1841. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

28.37819, -97.18416 · 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
71.4%
5 of 7 wells
With a plug date
42.9%
3 of 7 wells
Median depth
4,450 ft
7 wells filed one
Completion to plug
44.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
571.4%
A plug date is filed
342.9%
BothOn the schedule and plugged. Neither fact cancels the other.
342.9%
NeitherNo plug date, and not on the schedule.
228.6%

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 4,343 and 6,100 ft, median 4,450 ft, over the 7 wells that filed a depth.

Completions filed
Oct 1974 – Jun 2004
5 of 7 wells; 2 filed none
Plug dates filed
Sep 1974 – Sep 2024
3 of 7 wells; 4 filed none

Last completion to plug: a median of 44.8 years across the 1 well that filed both dates, with the middle half between 44.8 years and 44.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

7 wells

42-3910097444,385 ftSep 1974Yes
42-3910097554,343 ftSep 2024Yes
42-3910097326,100 ftJun 2004Yes
42-3910097214,392 ftJun 1990Yes
42-39131482114,500 ftMar 1982
42-3918094684,450 ftNov 1979Sep 2024Yes
42-3913034094,450 ftOct 1974

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 2026320106106.413.05$34,374
Apr 2026010398.932.87$296
Mar 20261679689.753.15$15,291
Feb 202616512063.503.75$10,928
Jan 202615419459.138.00$10,658
Dec 2025159056.664.41$9,009
Nov 202516521158.593.93$10,496
Oct 202516512959.383.30$10,224
Sep 202533012962.743.08$21,101
Aug 2025164063.933.01$10,485
Jul 2025011966.743.32$395
Jun 2025146066.483.13$9,706
May 202501860.553.23$58
Apr 202516212062.363.54$10,527
Mar 202515619267.704.27$11,381
Feb 202515518070.884.34$11,768
Jan 202516622774.324.28$13,308
Dec 202416517868.993.12$11,939
Nov 202416421769.052.20$11,801
Oct 20241628071.372.28$11,744
Sep 202407569.612.36$177
Aug 20241637075.632.06$12,472
Jul 202403879.932.15$82
Jun 20241579278.082.63$12,501
May 202415919778.812.20$12,964
Apr 202416219584.451.66$14,004
Mar 2024021280.301.55$328
Feb 202416417876.091.78$12,796
Jan 202416441573.023.30$13,344
Dec 202316439971.262.61$12,728
Nov 202315740077.892.81$13,352
Oct 202316039185.443.09$14,878
Sep 202316341089.042.74$15,635
Aug 202332536080.522.67$27,131
Jul 202316025774.852.64$12,655
Jun 202316126568.962.26$11,701
May 202331729870.622.23$23,050
Apr 202316833678.122.24$13,876
Mar 202316328772.852.39$12,561
Feb 202316310875.112.47$12,509
Jan 202308776.533.39$295
Dec 202201176.415.73$63
Nov 202202785.005.65$152
Oct 20221607387.185.86$14,377
Sep 202216321184.888.16$15,558
Aug 202216121594.529.13$17,180
Jul 2022097101.587.54$732
Jun 202231774115.097.98$37,074
May 202216127109.378.43$17,836
Apr 202233860104.226.84$35,637
Mar 20223190108.885.08$34,733
Feb 202216113891.054.86$15,330
Jan 202232116781.844.54$27,028
Dec 202134320071.323.90$25,243
Nov 2021014777.435.24$770
Oct 20213229379.795.71$26,224
Sep 202116213069.865.35$12,013
Aug 202133316066.024.22$22,660
Jul 202116311070.783.98$11,975
Jun 2021167069.493.38$11,605
May 202132315163.483.02$20,960
Apr 202149413660.362.76$30,193
Mar 20213308861.302.72$20,468
Feb 20211639857.805.55$9,965
Jan 202133211250.412.81$17,051
Dec 20203442644.642.68$15,426
Nov 20203329938.772.71$13,140
Oct 202033212936.972.48$12,594
Sep 202016211037.091.99$6,228
Aug 202053912739.982.39$21,852
Jul 202036712738.371.83$14,314
Jun 202033113134.901.69$11,773
May 202036914516.921.81$6,507
Apr 202053830814.751.80$8,491
Mar 202016532630.341.86$5,611
Feb 202037727049.881.98$19,340
Jan 202037319957.252.09$21,771
Dec 201940921559.012.30$24,631
Nov 201920323855.302.75$11,881
Oct 201940331053.472.42$22,298
Sep 201944837555.052.66$25,659
Aug 201941027053.112.30$22,397
Jul 201919119356.272.46$11,222
Jun 20194237052.782.49$22,500
May 201935824658.482.74$21,610
Apr 20192445262.632.75$15,425
Mar 2019327056.803.06$18,574
Feb 20195113750.852.79$26,088
Jan 201955017146.033.23$25,869
Dec 20181603,15146.594.19$20,643
Nov 201842727752.934.24$23,775
Oct 201836327061.443.40$23,220
Sep 201856930259.543.11$34,817
Aug 201857945659.403.07$35,791
Jul 201853135165.142.93$35,618
Jun 201840526160.183.08$25,176
May 201873344365.382.90$49,209
Apr 201838324563.842.90$25,161
Mar 201840726961.222.79$25,666
Feb 201858031561.782.77$36,704
Jan 201873427162.874.01$47,233
Dec 201739731757.272.92$23,662
Nov 201754235255.423.12$31,135
Oct 201753131949.292.98$27,125
Sep 201737315947.523.09$18,216
Aug 201721425045.373.00$10,460
Jul 201773433843.873.09$33,244
Jun 201753440642.493.09$23,943
May 201783032645.373.26$38,721
Apr 201766237147.933.21$32,921
Mar 201781938546.772.98$39,453
Feb 201750027050.452.95$26,022
Jan 201782538649.413.42$42,083
Dec 201685144348.763.72$43,144
Nov 201689631242.492.64$38,896
Oct 201698237446.193.09$46,514
Sep 201673427841.553.10$31,360
Aug 201689530341.442.92$37,975
Jul 201681217441.622.92$34,304
Jun 20169115845.352.69$41,470
May 20168993142.521.99$38,287
Apr 201681236936.561.99$30,421
Mar 201690736433.011.79$30,593
Feb 201698947726.472.06$27,163
Jan 201685348027.352.36$24,464
Dec 20151,02268032.362.00$34,433
Nov 201599160938.792.17$39,761
Oct 20151,02348043.552.43$45,716
Sep 20151,18748542.992.76$52,367
Aug 20151,11356940.162.87$46,333
Jul 201565638348.152.95$32,714
Jun 20151,00552856.152.88$57,953
May 201581545355.212.96$46,335
Apr 201593149249.822.71$47,714
Mar 20151,01849842.892.93$45,124
Feb 201595430844.662.98$43,522
Jan 201594631743.433.10$42,068
Dec 201493735154.693.59$52,505
Nov 201496731970.464.25$69,491
Oct 20141,14529078.303.90$90,785
Sep 201478036486.164.05$68,677
Aug 201445717989.394.04$41,574
Jul 201494226696.564.18$92,071
Jun 201495035298.164.74$94,919
May 201496239994.734.73$93,016
Apr 201495221995.944.81$92,388
Mar 201495040395.895.06$93,133
Feb 201479727597.406.19$79,331
Jan 20141,10929990.404.86$101,707
Dec 201380139491.824.35$75,263
Nov 201395941088.853.74$86,740
Oct 20131,10040797.423.78$108,700
Sep 2013961299104.113.72$101,161
Aug 20131,1130104.253.52$116,030
Jul 20131,102253102.523.72$113,918
Jun 20131,10849794.403.93$106,550
May 20131,11457394.834.15$108,018
Apr 201395667593.964.28$92,717
Mar 201378939693.623.91$75,416
Feb 201379531291.233.42$73,595
Jan 201396440191.603.42$89,674
Dec 201295338186.773.42$83,995
Nov 20129491,25686.953.62$87,069
Oct 20121,11831489.383.40$100,994
Sep 201295532894.672.92$91,367
Aug 20121,10728792.662.91$103,409
Jul 20121,27728885.133.02$109,581
Jun 20121,26830379.822.52$101,975
May 201278823391.612.49$72,768
Apr 2012939537101.652.00$96,522
Mar 20121,108714105.052.22$117,982
Feb 2012802776101.102.57$83,077
Jan 201278566898.092.73$78,827
Dec 201179666296.873.24$79,253
Nov 20111,11186895.723.31$109,219
Oct 201179583984.983.65$70,620
Sep 2011036683.623.99$1,459
Aug 20117936083.404.15$66,385
Jul 201179924194.144.52$76,307
Jun 20114715292.904.64$43,997
May 2011314098.134.40$30,813
Apr 20113130105.964.33$33,165
Mar 2011637096.364.06$61,381
Feb 2011157085.644.18$13,445
Jan 2011486086.504.59$42,039
Dec 2010627085.734.35$53,753
Nov 2010480080.843.80$38,803
Oct 2010480078.103.51$37,488
Sep 2010478072.633.98$34,717
Aug 2010316073.684.42$23,283
Jul 2010317072.554.74$22,998
Jun 2010159070.364.91$11,187
May 20100071.124.24$0
Apr 2010158081.694.12$12,907
Mar 2010160078.394.39$12,542
Feb 2010321073.585.44$23,619
Jan 2010483074.365.96$35,916
Dec 2009633071.445.48$45,222
Nov 2009483074.593.75$36,027
Oct 2009484072.544.11$35,109
Sep 2009472065.543.06$30,935
Aug 2009636067.423.22$42,879
Jul 2009483061.133.46$29,526
Jun 2009634066.163.90$41,945
May 2009480054.743.93$26,275
Apr 2009638046.773.59$29,839
Mar 2009313042.144.06$13,190
Feb 2009478032.814.63$15,683
Jan 2009637035.865.37$22,843
Dec 2008472037.105.98$17,511
Nov 2008479055.496.86$26,580
Oct 2008483075.246.92$36,341
Sep 20081590101.767.88$16,180
Aug 20087900114.228.48$90,234
Jul 20083260131.0811.39$42,732
Jun 20084930131.3313.03$64,746
May 20086470123.1711.57$79,691
Apr 20084830110.3110.45$53,280
Mar 20086390101.909.66$65,114
Feb 2008163092.538.77$15,082
Jan 2008329090.388.21$29,735
Dec 20070088.337.30$0
Nov 2007483091.677.29$44,277
Oct 2007313082.856.92$25,932
Sep 20070075.846.24$0
Aug 2007323069.066.39$22,306
Jul 2007481070.906.39$34,103
Jun 2007324062.007.55$20,088
May 2007640058.747.85$37,594
Apr 2007324059.617.81$19,314
Mar 2007489056.927.30$27,834
Feb 2007324055.108.22$17,852
Jan 20070050.306.73$0
Dec 2006330056.656.92$18,695
Nov 2006167054.207.62$9,051
Oct 2006161054.906.01$8,839
Sep 2006168060.085.04$10,093
Aug 2006164068.717.34$11,268
Jul 2006325069.376.34$22,545
Jun 2006165066.286.38$10,936
May 2006178066.016.42$11,750
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 2006163060.598.93$9,876
Dec 2005650054.9413.42$35,711
Nov 2005491054.6910.59$26,853
Oct 2005163058.3413.80$9,509
Sep 2005321061.4512.08$19,725
Aug 2005163061.519.80$10,026
Jul 2005660055.697.84$36,755
Jun 2005480052.337.38$25,118
May 2005157045.226.65$7,100
Apr 2005320049.207.36$15,744
Mar 2005494050.377.15$24,883
Feb 2005434045.226.31$19,625
Jan 2005649043.166.32$28,011
Dec 2004332039.866.75$13,234
Nov 2004321045.286.33$14,535
Oct 2004165049.706.52$8,201
Sep 2004480043.245.28$20,755
Aug 2004485042.375.55$20,549
Jul 2004482038.286.08$18,451
Jun 2004159036.106.43$5,740
May 2004347037.486.49$13,006
Apr 2004514034.475.86$17,718
Mar 2004663034.365.53$22,781
Feb 2004347032.455.51$11,260
Jan 2004490032.036.30$15,695
Dec 2003486030.266.30$14,706
Nov 2003484028.804.60$13,939
Oct 2003322028.174.76$9,071
Sep 2003494026.314.75$12,997
Aug 2003334029.765.13$9,940
Jul 2003153029.415.17$4,500
Jun 2003329028.565.98$9,396
May 2003662026.595.97$17,603
Apr 2003452026.675.41$12,055
Mar 2003327031.146.10$10,183
Feb 2003320033.487.93$10,714
Jan 2003499030.315.58$15,125
Dec 2002166026.914.85$4,467
Nov 2002328024.664.14$8,088
Oct 2002488026.464.23$12,912
Sep 2002497027.443.64$13,638
Aug 2002334025.963.16$8,671
Jul 2002335024.583.06$8,234
Jun 2002499023.733.34$11,841
May 2002644024.663.58$15,881
Apr 2002319023.653.51$7,544
Mar 20020022.003.10$0
Feb 2002323018.222.38$5,885
Jan 2002503017.172.38$8,637
Dec 2001310016.932.36$5,248
Nov 2001342018.072.41$6,180
Oct 2001517019.782.53$10,226
Sep 2001338024.262.25$8,200
Aug 2001505024.873.05$12,559
Jul 2001471023.933.20$11,271
Jun 2001328024.563.82$8,056
May 2001516025.524.31$13,168
Apr 2001520024.685.34$12,834
Mar 20010024.545.38$0
Feb 2001348027.755.77$9,657
Jan 2001678027.478.40$18,625
Dec 2000353026.889.12$9,489
Nov 2000179032.215.66$5,766
Oct 2000506031.235.15$15,802
Sep 2000328031.875.19$10,453
Aug 2000313029.644.54$9,277
Jul 2000327028.534.09$9,329
Jun 2000178029.304.40$5,215
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
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 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 1998648012.421.97$8,048
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 1998331011.742.24$3,886
Jun 1998668011.242.24$7,508
May 1998336012.622.21$4,240
Apr 1998317013.042.51$4,134
Mar 1998634012.802.31$8,115
Feb 1998166013.952.30$2,316
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 19970017.582.25$0
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19960020.26$0
Jul 19960019.55$0
Jun 19960018.73$0
May 19960019.43$0
Apr 19960021.51$0
Mar 19960019.38$0
Feb 19960016.98$0
Jan 19960017.07$0
Dec 19950017.19$0
Nov 19950016.00$0
Oct 19950015.43$0
Sep 19950016.18$0
Aug 19950015.92$0
Jul 19950015.24$0
Jun 19950016.41$0
May 19950017.56$0
Apr 19950017.73$0
Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940017.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19940012.46$0
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930012.33$0
Nov 19930014.49$0
Oct 19930015.85$0
Sep 19930015.03$0
Aug 19930015.66$0
Jul 19930015.46$0
Jun 19930016.79$0
May 19930017.68$0
Apr 19930018.05$0
Mar 19930018.14$0
Feb 19930017.90$0
Jan 19930016.93$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.

May 2026 — as filed, then multipliedworked
Oil                  320 bbl  × $106.41 =    $34,051
Casinghead gas       106 Mcf  × $  3.05 =       $323

────────────────────────────────────────────────────
Month total                                  $34,374

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/3990 is the state's own key, not one this site invented.