OBRIEN, J. M.

Operated by SOUTH TEXAS OPERATING COMPANY (P-5 802845) in the GRETA, DEEP (5660) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4921District 02Field 36868540OilCasinghead gasSave
Value, all time
$8.2 M
Jan 1993 – May 2026
Value, last 12 filed months
$377 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition173,518 bbl$7,732,908
Casinghead gasProduction137,314 Mcf$498,943
Total$8,231,851

5,973 Mcf of this lease's gas, across 45 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 (1)

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 28.3860, -97.1936. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

28.38600, -97.19362 · 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
0.0%
0 of 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
6,701 ft
1 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
1100.0%

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

The one well that filed a depth was drilled to 6,701 ft.

Completions filed
Mar 1973
1 of 1 wells

1 well

42-39130147116,701 ftMar 1973

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 20263210106.413.05$34,158
Apr 2026346098.932.87$34,230
Mar 2026499089.753.15$44,785
Feb 2026171063.503.75$10,859
Jan 2026512059.138.00$30,275
Dec 2025348056.664.41$19,718
Nov 2025515058.593.93$30,174
Oct 2025515059.383.30$30,581
Sep 2025505062.743.08$31,684
Aug 2025670063.933.01$42,833
Jul 2025512066.743.32$34,171
Jun 2025510066.483.13$33,905
May 2025507060.553.23$30,699
Apr 2025502062.363.54$31,305
Mar 2025346067.704.27$23,424
Feb 2025334070.884.34$23,674
Jan 2025140074.324.28$10,405
Dec 2024307068.993.12$21,180
Nov 2024335069.052.20$23,132
Oct 2024514071.372.28$36,684
Sep 2024169069.612.36$11,764
Aug 2024168075.632.06$12,706
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 2024168078.812.20$13,240
Apr 2024334084.451.66$28,206
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 2024339073.023.30$24,754
Dec 2023169071.262.61$12,043
Nov 2023168077.892.81$13,086
Oct 2023168085.443.09$14,354
Sep 2023171089.042.74$15,226
Aug 2023169080.522.67$13,608
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 2023173070.622.23$12,217
Apr 2023179078.122.24$13,983
Mar 2023339072.852.39$24,696
Feb 2023172075.112.47$12,919
Jan 2023169076.533.39$12,934
Dec 2022319076.415.73$24,375
Nov 2022341085.005.65$28,985
Oct 2022172087.185.86$14,995
Sep 2022170084.888.16$14,430
Aug 2022350094.529.13$33,082
Jul 20221720101.587.54$17,472
Jun 20221730115.097.98$19,911
May 20223400109.378.43$37,186
Apr 20223480104.226.84$36,269
Mar 20221760108.885.08$19,163
Feb 2022350091.054.86$31,868
Jan 2022177081.844.54$14,486
Dec 2021338071.323.90$24,106
Nov 2021342077.435.24$26,481
Oct 2021173079.795.71$13,804
Sep 2021351069.865.35$24,521
Aug 2021180066.024.22$11,884
Jul 2021175070.783.98$12,387
Jun 2021348069.493.38$24,183
May 2021178063.483.02$11,299
Apr 2021356060.362.76$21,488
Mar 2021356061.302.72$21,823
Feb 2021175057.805.55$10,115
Jan 2021345050.412.81$17,391
Dec 2020174044.642.68$7,767
Nov 2020332038.772.71$12,872
Oct 2020355036.972.48$13,124
Sep 2020176037.091.99$6,528
Aug 2020347039.982.39$13,873
Jul 2020348038.371.83$13,353
Jun 2020166034.901.69$5,793
May 2020176016.921.81$2,978
Apr 2020174014.751.80$2,567
Mar 2020341030.341.86$10,346
Feb 2020339049.881.98$16,909
Jan 2020179057.252.09$10,248
Dec 2019359059.012.30$21,185
Nov 2019181055.302.75$10,009
Oct 2019348053.472.42$18,608
Sep 2019178055.052.66$9,799
Aug 2019169053.112.30$8,976
Jul 2019341056.272.46$19,188
Jun 2019173052.782.49$9,131
May 2019335058.482.74$19,591
Apr 2019340062.632.75$21,294
Mar 2019347056.803.06$19,710
Feb 2019349050.852.79$17,747
Jan 2019348046.033.23$16,018
Dec 2018504046.594.19$23,481
Nov 2018339052.934.24$17,943
Oct 2018487061.443.40$29,921
Sep 2018673059.543.11$40,070
Aug 2018342059.403.07$20,315
Jul 2018491065.142.93$31,984
Jun 2018500060.183.08$30,090
May 2018502065.382.90$32,821
Apr 2018164063.842.90$10,470
Mar 2018503061.222.79$30,794
Feb 2018339061.782.77$20,943
Jan 2018518062.874.01$32,567
Dec 2017504057.272.92$28,864
Nov 2017506055.423.12$28,043
Oct 2017332049.292.98$16,364
Sep 2017687047.523.09$32,646
Aug 2017348045.373.00$15,789
Jul 2017682043.873.09$29,919
Jun 2017338042.493.09$14,362
May 2017328045.373.26$14,881
Apr 2017341047.933.21$16,344
Mar 2017345046.772.98$16,136
Feb 2017345050.452.95$17,405
Jan 2017169049.413.42$8,350
Dec 2016509048.763.72$24,819
Nov 2016338042.492.64$14,362
Oct 2016500046.193.09$23,095
Sep 2016344041.553.10$14,293
Aug 2016346041.442.92$14,338
Jul 2016512041.622.92$21,309
Jun 2016345045.352.69$15,646
May 2016175042.521.99$7,441
Apr 2016524036.561.99$19,157
Mar 2016174033.011.79$5,744
Feb 2016523026.472.06$13,844
Jan 2016348027.352.36$9,518
Dec 2015358032.362.00$11,585
Nov 2015521038.792.17$20,210
Oct 2015341043.552.43$14,851
Sep 2015343042.992.76$14,746
Aug 2015512040.162.87$20,562
Jul 2015337048.152.95$16,227
Jun 2015341056.152.88$19,147
May 2015346055.212.96$19,103
Apr 2015346049.822.71$17,238
Mar 2015351042.892.93$15,054
Feb 2015175044.662.98$7,816
Jan 2015346043.433.10$15,027
Dec 2014345054.693.59$18,868
Nov 2014169070.464.25$11,908
Oct 2014333078.303.90$26,074
Sep 2014333086.164.05$28,691
Aug 2014334089.394.04$29,856
Jul 2014173096.564.18$16,705
Jun 2014336098.164.74$32,982
May 2014333094.734.73$31,545
Apr 2014349095.944.81$33,483
Mar 2014335095.895.06$32,123
Feb 2014175097.406.19$17,045
Jan 2014348090.404.86$31,459
Dec 2013164091.824.35$15,058
Nov 2013172088.853.74$15,282
Oct 2013165097.423.78$16,074
Sep 20133260104.113.72$33,940
Aug 20131700104.253.52$17,723
Jul 20131620102.523.72$16,608
Jun 2013163094.403.93$15,387
May 2013326094.834.15$30,915
Apr 2013173093.964.28$16,255
Mar 2013330093.623.91$30,895
Feb 2013147091.233.42$13,411
Jan 2013311091.603.42$28,488
Dec 2012175086.773.42$15,185
Nov 201223323986.953.62$21,126
Oct 201221424389.383.40$19,953
Sep 201222417294.672.92$21,708
Aug 201233019092.662.91$31,130
Jul 201222021285.133.02$19,369
Jun 201233718979.822.52$27,375
May 201221615091.612.49$20,161
Apr 2012220182101.652.00$22,726
Mar 2012230100105.052.22$24,384
Feb 2012229102101.102.57$23,414
Jan 201222120898.092.73$22,247
Dec 201123520596.873.24$23,429
Nov 201121617595.723.31$21,255
Oct 201132620984.983.65$28,466
Sep 201133720783.623.99$29,005
Aug 201133825883.404.15$29,260
Jul 201134123294.144.52$33,150
Jun 201132820092.904.64$31,399
May 201132823898.134.40$33,235
Apr 2011443256105.964.33$48,050
Mar 201133027196.364.06$32,898
Feb 201122117985.644.18$19,675
Jan 201132920386.504.59$29,390
Dec 201033316385.734.35$29,257
Nov 201032711480.843.80$26,867
Oct 201033119178.103.51$26,521
Sep 201034119972.633.98$25,559
Aug 201033022173.684.42$25,291
Jul 201032522972.554.74$24,663
Jun 201033415970.364.91$24,281
May 201033218671.124.24$24,400
Apr 201032923381.694.12$27,837
Mar 201032928878.394.39$27,054
Feb 201016520173.585.44$13,235
Jan 201032427374.365.96$25,721
Dec 200924129971.445.48$18,857
Nov 200932333374.593.75$25,342
Oct 200940339272.544.11$30,845
Sep 200940542065.543.06$27,831
Aug 200940941667.423.22$28,914
Jul 200948544561.133.46$31,190
Jun 200940442466.163.90$28,380
May 200940149454.743.93$23,890
Apr 200940011946.773.59$19,135
Mar 200947919342.144.06$20,968
Feb 200940240832.814.63$15,080
Jan 200931947935.865.37$14,012
Dec 200832145337.105.98$14,617
Nov 200840741355.496.86$25,418
Oct 200846139175.246.92$37,392
Sep 2008482364101.767.88$51,916
Aug 2008404410114.228.48$49,623
Jul 2008405392131.0811.39$57,552
Jun 2008481382131.3313.03$68,148
May 2008477387123.1711.57$63,231
Apr 2008480463110.3110.45$57,789
Mar 2008412475101.909.66$46,573
Feb 200832629292.538.77$32,726
Jan 200850644990.388.21$49,417
Dec 200749653088.337.30$47,682
Nov 200750943191.677.29$49,803
Oct 200749151082.856.92$44,210
Sep 200742454675.846.24$35,565
Aug 200750457969.066.39$38,505
Jul 200726125270.906.39$20,115
Jun 200758833062.007.55$38,947
May 200740942458.747.85$27,351
Apr 200740829259.617.81$26,600
Mar 200751329956.927.30$31,383
Feb 200748833155.108.22$29,608
Jan 200741433250.306.73$23,058
Dec 200642226656.656.92$25,747
Nov 200649124254.207.62$28,456
Oct 200650222354.906.01$28,901
Sep 200642528460.085.04$26,965
Aug 200651431068.717.34$37,592
Jul 200650639269.376.34$37,588
Jun 200658352866.286.38$42,012
May 200658644566.016.42$41,541
Apr 200650151964.397.36$36,079
Mar 200641330356.707.08$25,563
Feb 200650342657.597.75$32,270
Jan 200651440360.598.93$34,743
Dec 200551445554.9413.42$34,343
Nov 200548732854.6910.59$30,107
Oct 200556243658.3413.80$38,802
Sep 200551344161.4512.08$36,851
Aug 200557951661.519.80$40,669
Jul 200534229755.697.84$21,376
Jun 200557451752.337.38$33,853
May 200556741445.226.65$28,393
Apr 200566939249.207.36$35,800
Mar 200541962450.377.15$25,570
Feb 200559240845.226.31$29,346
Jan 200560547343.166.32$29,102
Dec 200457044439.866.75$25,718
Nov 200450252645.286.33$26,060
Oct 200459057049.706.52$33,037
Sep 200450243143.245.28$23,984
Aug 200450266242.375.55$24,944
Jul 200457446838.286.08$24,820
Jun 200451629636.106.43$20,532
May 200449430637.486.49$20,502
Apr 200440815534.475.86$14,972
Mar 200448836034.365.53$18,759
Feb 200457032632.455.51$20,293
Jan 200458143332.036.30$21,337
Dec 200340624930.266.30$13,855
Nov 200364831328.804.60$20,101
Oct 200365341128.174.76$20,351
Sep 200356842026.314.75$16,939
Aug 200362335429.765.13$20,356
Jul 200348027729.415.17$15,549
Jun 200380921328.565.98$24,379
May 200363837826.595.97$19,222
Apr 200364537326.675.41$19,219
Mar 200356738631.146.10$20,009
Feb 200356635433.487.93$21,755
Jan 200364838730.315.58$21,801
Dec 200272946726.914.85$21,884
Nov 200273044124.664.14$19,826
Oct 200265038426.464.23$18,823
Sep 200266140727.443.64$19,617
Aug 200249735925.963.16$14,038
Jul 200283441624.583.06$21,773
Jun 200256641923.733.34$14,830
May 200282142324.663.58$21,762
Apr 200249337723.653.51$12,984
Mar 200250928322.003.10$12,076
Feb 200249028918.222.38$9,614
Jan 2002687017.172.38$11,796
Dec 2001656016.932.36$11,106
Nov 2001477018.072.41$8,619
Oct 2001734019.782.53$14,519
Sep 200156339524.262.25$14,548
Aug 200157446124.873.05$15,683
Jul 200157348623.933.20$15,266
Jun 20016738524.563.82$16,854
May 200141027825.524.31$11,661
Apr 200151627524.685.34$14,202
Mar 200151117024.545.38$13,454
Feb 200154621927.755.77$16,414
Jan 200168347927.478.40$22,785
Dec 200050541026.889.12$17,315
Nov 200060844132.215.66$22,079
Oct 200066150731.235.15$23,252
Sep 200042334831.875.19$15,286
Aug 200017561929.644.54$7,998
Jul 20003112,10528.534.09$17,482
Jun 20006832,51629.304.40$31,075
May 20003582,61227.263.68$19,371
Apr 20005293,04924.513.12$22,466
Mar 20006732,88828.422.86$27,386
Feb 20003371,58627.622.73$13,632
Jan 20003702,80225.272.48$16,300
Dec 19996683,66824.282.42$25,109
Nov 19993363,69223.192.43$16,778
Oct 19995093,73020.982.80$21,137
Sep 19993614,53121.752.62$19,718
Aug 19997283,47619.262.88$24,017
Jul 19997292,40917.892.37$18,757
Jun 19997261,65315.942.36$15,477
May 19995342,70815.792.32$14,717
Apr 19995275,90415.102.21$20,994
Mar 19997155,34012.471.84$18,733
Feb 19995355,8559.981.82$15,982
Jan 199905,02110.381.90$9,540
Dec 19983552,6699.201.77$7,999
Nov 19985342,98510.892.19$12,340
Oct 19985312,92312.421.97$12,351
Sep 19986343,04512.592.08$14,324
Aug 19986822,07611.301.91$11,666
Jul 19980011.742.24$0
Jun 199884515011.242.24$9,833
May 199883815012.622.21$10,907
Apr 199884515013.042.51$11,395
Mar 199865015012.802.31$8,666
Feb 199869015013.952.30$9,970
Jan 199890615014.702.15$13,641
Dec 199786115016.322.41$14,413
Nov 199775515018.193.09$14,197
Oct 199783215019.253.15$16,488
Sep 199765215017.742.95$12,010
Aug 199779115017.862.55$14,510
Jul 199779715017.582.25$14,348
Jun 199782315017.242.26$14,527
May 199775915018.972.31$14,745
Apr 199782515017.882.08$15,063
Mar 199781615018.951.94$15,754
Feb 199746815020.492.21$9,920
Jan 19971,01315023.483.54$24,316
Dec 19961,08015023.32$25,186
Nov 199652315021.97$11,490
Oct 199698115023.31$22,867
Sep 199654915022.22$12,199
Aug 199693515020.26$18,943
Jul 19961,01515019.55$19,843
Jun 199651115018.73$9,571
May 199695415019.43$18,536
Apr 199650815021.51$10,927
Mar 199679115019.38$15,330
Feb 19961,00115016.98$16,997
Jan 199643915017.07$7,494
Dec 199586415017.19$14,852
Nov 199588915016.00$14,224
Oct 199595515015.43$14,736
Sep 199599615016.18$16,115
Aug 199569115015.92$11,001
Jul 199554615015.24$8,321
Jun 19951,08115016.41$17,739
May 199548615017.56$8,534
Apr 19951,00515017.73$17,819
Mar 199555615016.44$9,141
Feb 19951,01015016.58$16,746
Jan 199539815015.92$6,336
Dec 19941,06515015.03$16,007
Nov 199457415015.90$9,127
Oct 19941,02315015.58$15,938
Sep 199465115015.29$9,954
Aug 199487615016.13$14,130
Jul 199487415017.56$15,347
Jun 199407317.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19940012.46$0
Feb 199433410012.50$4,175
Jan 1994010012.66$0
Dec 199332410012.33$3,995
Nov 199339210014.49$5,680
Oct 199343010015.85$6,816
Sep 199343710015.03$6,568
Aug 1993010015.66$0
Jul 199364410015.46$9,956
Jun 1993010016.79$0
May 199343310017.68$7,655
Apr 199338710018.05$6,985
Mar 199383710018.14$15,183
Feb 1993010017.90$0
Jan 199343910016.93$7,432

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                  321 bbl  × $106.41 =    $34,158
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $34,158

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/4921 is the state's own key, not one this site invented.