OBRIEN, J. J., -A-

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 3959District 02Field 36867780OilCasinghead gasSaveExport
Value, all time
$4.4 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 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.

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
OilDisposition124,965 bbl$4,174,375
Casinghead gasProduction48,080 Mcf$274,067
Total$4,448,442

1,498 Mcf of this lease's gas, across 21 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 (9)

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 28.3888, -97.1755. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

28.38880, -97.17431 · 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
77.8%
7 of 9 wells
With a plug date
77.8%
7 of 9 wells
Median depth
4,500 ft
9 wells filed one
Completion to plug
25.0 years
median over 6 wells

What the state filed about each well

On the RRC proration schedule
777.8%
A plug date is filed
777.8%
BothOn the schedule and plugged. Neither fact cancels the other.
777.8%
NeitherNo plug date, and not on the schedule.
222.2%

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, 9 of 9 wells. Median 4,500 ft, with the middle half between 4,397 and 5,924 ft; the shallowest is 4,395 ft and the deepest 7,981 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, 8 of 9 wells, Oct 1974 – Oct 2002. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Oct 1974 – Oct 2002
8 of 9 wells; 1 filed none
Plug dates filed
Nov 1987 – Nov 2023
7 of 9 wells; 2 filed none

Last completion to plug: a median of 25.0 years across the 6 wells that filed both dates, with the middle half between 21.2 years and 28.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

9 wells

42-3910078544,395 ftNov 1987Yes
42-3913026197,981 ftOct 2002Nov 2023Yes
42-3910081755,930 ftMar 1994
42-3910078075,924 ftDec 1993
42-3910077724,397 ftOct 1993Oct 2022Yes
42-3918206634,398 ftOct 1993Oct 2022Yes
42-3910081514,396 ftJan 1991May 2012Yes
42-39130377114,526 ftSep 1987Dec 1987Yes
42-39130330104,500 ftOct 1974May 2003Yes

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 201705749.413.42$195
Dec 201646048.763.72$2,243
Nov 20161616942.492.64$7,023
Oct 20161748346.193.09$8,294
Sep 2016125541.553.10$669
Aug 201615316241.442.92$6,814
Jul 201615414241.622.92$6,825
Jun 201615413845.352.69$7,355
May 201618313542.521.99$8,050
Apr 201601536.561.99$30
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20161134127.352.36$3,187
Dec 201508132.362.00$162
Nov 201514410038.792.17$5,802
Oct 20155012243.552.43$2,474
Sep 201520713142.992.76$9,260
Aug 201530017040.162.87$12,536
Jul 201515317848.152.95$7,891
Jun 201515322456.152.88$9,237
May 201516023055.212.96$9,513
Apr 201515624249.822.71$8,427
Mar 201515423542.892.93$7,295
Feb 201515417744.662.98$7,404
Jan 201515316143.433.10$7,144
Dec 201415516954.693.59$9,084
Nov 201427018270.464.25$19,798
Oct 20147118078.303.90$6,261
Sep 20141422386.164.05$12,328
Aug 201415316189.394.04$14,326
Jul 201415119396.564.18$15,387
Jun 201415420798.164.74$16,097
May 201415321894.734.73$15,524
Apr 201438420695.944.81$37,832
Mar 201431922595.895.06$31,727
Feb 201447512697.406.19$47,045
Jan 201431510590.404.86$28,986
Dec 201347520391.824.35$44,498
Nov 20133169788.853.74$28,439
Oct 201315712597.423.78$15,767
Sep 2013155127104.113.72$16,609
Aug 2013296179104.253.52$31,489
Jul 2013157185102.523.72$16,783
Jun 201316018294.403.93$15,820
May 20131534894.834.15$14,708
Apr 201306893.964.28$291
Mar 201315710293.623.91$15,097
Feb 201315611891.233.42$14,635
Jan 201315815691.603.42$15,006
Dec 201231917186.773.42$28,264
Nov 201215616286.953.62$14,151
Oct 201215716089.383.40$14,577
Sep 201216012694.672.92$15,515
Aug 201215816292.662.91$15,111
Jul 201216317685.133.02$14,408
Jun 201215415279.822.52$12,675
May 201231918191.612.49$29,674
Apr 20120135101.652.00$270
Mar 201215791105.052.22$16,695
Feb 2012173177101.102.57$17,945
Jan 201215720598.092.73$15,961
Dec 2011010296.873.24$330
Nov 201132015595.723.31$31,144
Oct 201116218584.983.65$14,442
Sep 2011015583.623.99$618
Aug 20111609283.404.15$13,726
Jul 201116017994.144.52$15,871
Jun 201116117292.904.64$15,755
May 201115618798.134.40$16,132
Apr 2011157195105.964.33$17,481
Mar 201115923696.364.06$16,279
Feb 2011019285.644.18$803
Jan 201116216286.504.59$14,756
Dec 201016019085.734.35$14,543
Nov 201016116280.843.80$13,630
Oct 201016117878.103.51$13,199
Sep 2010019772.633.98$784
Aug 201015920373.684.42$12,612
Jul 201009472.554.74$445
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 2010165081.694.12$13,479
Mar 2010020478.394.39$895
Feb 20101591873.585.44$11,797
Jan 201015722674.365.96$13,022
Dec 200931026571.445.48$23,600
Nov 2009025474.593.75$953
Oct 20091594372.544.11$11,711
Sep 200932226565.543.06$21,916
Aug 200915924667.423.22$11,512
Jul 200932624761.133.46$20,784
Jun 200931827566.163.90$22,110
May 200915324754.743.93$9,345
Apr 200932126146.773.59$15,950
Mar 200916019542.144.06$7,534
Feb 200915712732.814.63$5,740
Jan 200931921835.865.37$12,610
Dec 200831925737.105.98$13,371
Nov 2008020655.496.86$1,413
Oct 200815629975.246.92$13,807
Sep 2008159334101.767.88$18,811
Aug 2008323347114.228.48$39,837
Jul 2008326358131.0811.39$46,810
Jun 2008164320131.3313.03$25,709
May 2008318328123.1711.57$42,964
Apr 2008318353110.3110.45$38,769
Mar 2008312361101.909.66$35,282
Feb 200831532992.538.77$32,032
Jan 200831938090.388.21$31,949
Dec 200732741388.337.30$31,900
Nov 200732238891.677.29$32,347
Oct 200748648382.856.92$43,608
Sep 200732443875.846.24$27,307
Aug 200732029369.066.39$23,971
Jul 200732341670.906.39$25,558
Jun 200748845062.007.55$33,653
May 200731443058.747.85$21,818
Apr 200732428359.617.81$21,523
Mar 200748641956.927.30$30,723
Feb 200732541455.108.22$21,309
Jan 200732847250.306.73$19,673
Dec 200649548256.656.92$31,376
Nov 200632741654.207.62$20,892
Oct 200648641154.906.01$29,153
Sep 200616814760.085.04$10,834
Aug 200648841168.717.34$36,547
Jul 200632836169.376.34$25,043
Jun 200665439366.286.38$45,856
May 200649339266.016.42$35,062
Apr 200646540864.397.36$32,944
Mar 200648517156.707.08$28,711
Feb 200632527057.597.75$20,810
Jan 200649013960.598.93$30,931
Dec 20054898954.9413.42$28,060
Nov 200532638154.6910.59$21,863
Oct 200532952158.3413.80$26,381
Sep 200531995761.4512.08$31,162
Aug 200548655861.519.80$35,361
Jul 200549240455.697.84$30,568
Jun 200547243352.337.38$27,896
May 200532741845.226.65$17,567
Apr 200548442449.207.36$26,934
Mar 200548739450.377.15$27,349
Feb 200516525945.226.31$9,096
Jan 20051642,30543.166.32$21,651
Dec 200413228239.866.75$7,165
Nov 200432625345.286.33$16,363
Oct 200432337849.706.52$18,516
Sep 200415944043.245.28$9,200
Aug 200449242842.375.55$23,222
Jul 200431538738.286.08$14,413
Jun 200432930236.106.43$13,820
May 200433633737.486.49$14,782
Apr 200469128234.475.86$25,471
Mar 200434831834.365.53$13,716
Feb 200434822532.455.51$12,532
Jan 200415128132.036.30$6,607
Dec 200349630630.266.30$16,937
Nov 200316123428.804.60$5,712
Oct 200350632328.174.76$15,791
Sep 200331829726.314.75$9,777
Aug 200333131829.765.13$11,482
Jul 200330424929.415.17$10,228
Jun 200333329128.565.98$11,252
May 200331018326.595.97$9,336
Apr 200333032026.675.41$10,531
Mar 200348338931.146.10$17,412
Feb 200333036133.487.93$13,910
Jan 200348535130.315.58$16,660
Dec 200232828926.914.85$10,229
Nov 200249441124.664.14$13,882
Oct 200233340826.464.23$10,537
Sep 200249336627.443.64$14,858
Aug 200249749625.963.16$14,472
Jul 200250149724.583.06$13,836
Jun 200249936323.733.34$13,053
May 200282174124.663.58$22,902
Apr 200216471023.653.51$6,372
Mar 200232329022.003.10$8,006
Feb 2002649018.222.38$11,825
Jan 2002509017.172.38$8,740
Dec 2001474016.932.36$8,025
Nov 2001670018.072.41$12,107
Oct 2001516019.782.53$10,206
Sep 2001685024.262.25$16,618
Aug 2001630024.873.05$15,668
Jul 2001347023.933.20$8,304
Jun 2001343024.563.82$8,424
May 2001613025.524.31$15,644
Apr 2001499024.685.34$12,315
Mar 2001354024.545.38$8,687
Feb 2001526027.755.77$14,597
Jan 2001848027.478.40$23,295
Dec 2000523026.889.12$14,058
Nov 2000509032.215.66$16,395
Oct 2000334031.235.15$10,431
Sep 2000181031.875.19$5,768
Aug 2000336029.644.54$9,959
Jul 2000360028.534.09$10,271
Jun 2000344029.304.40$10,079
May 2000341027.263.68$9,296
Apr 2000490024.513.12$12,010
Mar 2000653028.422.86$18,558
Feb 2000329027.622.73$9,087
Jan 2000507025.272.48$12,812
Dec 1999501024.282.42$12,164
Nov 1999172023.192.43$3,989
Oct 1999824020.982.80$17,288
Sep 1999674021.752.62$14,660
Aug 1999483019.262.88$9,303
Jul 19990017.892.37$0
Jun 1999655015.942.36$10,441
May 1999652015.792.32$10,295
Apr 1999639015.102.21$9,649
Mar 1999341012.471.84$4,252
Feb 199933409.981.82$3,333
Jan 1999320010.381.90$3,322
Dec 199866009.201.77$6,072
Nov 1998475010.892.19$5,173
Oct 1998505012.421.97$6,272
Sep 1998333012.592.08$4,192
Aug 1998663011.301.91$7,492
Jul 1998512011.742.24$6,011
Jun 1998334011.242.24$3,754
May 1998815012.622.21$10,285
Apr 1998502013.042.51$6,546
Mar 1998818012.802.31$10,470
Feb 1998506013.952.30$7,059
Jan 1998332014.702.15$4,880
Dec 1997469016.322.41$7,654
Nov 1997473018.193.09$8,604
Oct 1997452019.253.15$8,701
Sep 1997734017.742.95$13,021
Aug 1997849117.862.55$15,166
Jul 19971,247117.582.25$21,925
Jun 1997870117.242.26$15,001
May 1997454018.972.31$8,612
Apr 1997478017.882.08$8,547
Mar 1997469018.951.94$8,888
Feb 1997875020.492.21$17,929
Jan 1997476023.483.54$11,176
Dec 1996878023.32$20,475
Nov 1996793021.97$17,422
Oct 1996899023.31$20,956
Sep 1996445022.22$9,888
Aug 1996882020.26$17,869
Jul 1996872019.55$17,048
Jun 1996852018.73$15,958
May 1996840019.43$16,321
Apr 1996907021.51$19,510
Mar 1996920019.38$17,830
Feb 1996944016.98$16,029
Jan 1996939017.07$16,029
Dec 1995928017.19$15,952
Nov 1995902016.00$14,432
Oct 19951,216015.43$18,763
Sep 1995947016.18$15,322
Aug 1995941015.92$14,981
Jul 1995944015.24$14,387
Jun 19951,387016.41$22,761
May 19951,430017.56$25,111
Apr 1995951017.73$16,861
Mar 19951,409016.44$23,164
Feb 1995475016.58$7,876
Jan 19951,428015.92$22,734
Dec 1994960015.03$14,429
Nov 19941,580115.90$25,122
Oct 19941,267115.58$19,740
Sep 19941,399115.29$21,391
Aug 19941,686116.13$27,195
Jul 19941,324117.56$23,249
Jun 19941,809117.09$30,916
May 19941,048115.88$16,642
Apr 19941,330114.14$18,806
Mar 1994909112.46$11,326
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930112.33$0
Nov 1993780114.49$11,302
Oct 1993859115.85$13,615
Sep 19939658715.03$14,504
Aug 199392911515.66$14,548
Jul 199392715615.46$14,331
Jun 19931,42218716.79$23,875
May 199335519017.68$6,276
Apr 199371819618.05$12,960
Mar 199387120018.14$15,800
Feb 199393318017.90$16,701
Jan 19931,85717516.93$31,439

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.

Jan 2017 — as filed, then multipliedworked
Oil                    0 bbl  × $ 49.41 =         $0
Casinghead gas        57 Mcf  × $  3.42 =       $195

────────────────────────────────────────────────────
Month total                                     $195

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/3959 is the state's own key, not one this site invented.