O'BRIEN "B"

Operated by CHAP OPERATING, INC. (P-5 144416) in the OBRIEN, WEST (STRAWN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 25646District 7BField 66641500OilCasinghead gasSaveExport
Value, all time
$681 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 5 leases and 22 wells, and the rule below applies to all of them.

Discovered
1954-03-10
as the register files it
Field class
Oil
the register's own label
Between wells
933 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 40 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
OilDisposition15,559 bbl$680,924
Casinghead gasProduction35 Mcf$0
Total$680,924

35 Mcf of this lease's gas, across 35 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 33.3830, -99.8521. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

33.38297, -99.85215 · 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
no depth filed
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.

1 well

42-20780543701

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 202556060.553.23$3,391
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 202355071.262.61$3,919
Nov 20230077.892.81$0
Oct 202358085.443.09$4,956
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 202358074.852.64$4,341
Jun 20230068.962.26$0
May 202360070.622.23$4,237
Apr 20230078.122.24$0
Mar 202357072.852.39$4,152
Feb 20230075.112.47$0
Jan 202352076.533.39$3,980
Dec 20220076.415.73$0
Nov 202252085.005.65$4,420
Oct 20220087.185.86$0
Sep 202246084.888.16$3,904
Aug 20220094.529.13$0
Jul 2022540101.587.54$5,485
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 2022520104.226.84$5,419
Mar 202200108.885.08$0
Feb 202246091.054.86$4,188
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 202152079.795.71$4,149
Sep 20210069.865.35$0
Aug 202150066.024.22$3,301
Jul 20210070.783.98$0
Jun 202154069.493.38$3,752
May 20210063.483.02$0
Apr 202154060.362.76$3,259
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 202149050.412.81$2,470
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 202050036.972.48$1,849
Sep 20200037.091.99$0
Aug 202050039.982.39$1,999
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 202047014.751.80$693
Mar 20200030.341.86$0
Feb 202051049.881.98$2,544
Jan 20200057.252.09$0
Dec 201962059.012.30$3,659
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 201954055.052.66$2,973
Aug 20190053.112.30$0
Jul 201950056.272.46$2,814
Jun 20190052.782.49$0
May 201950058.482.74$2,924
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 201953050.852.79$2,695
Jan 20190046.033.23$0
Dec 201855046.594.19$2,562
Nov 20180052.934.24$0
Oct 201852061.443.40$3,195
Sep 20180059.543.11$0
Aug 201854059.403.07$3,208
Jul 20180065.142.93$0
Jun 201852060.183.08$3,129
May 20180065.382.90$0
Apr 201855063.842.90$3,511
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 201855062.874.01$3,458
Dec 20170057.272.92$0
Nov 201754055.423.12$2,993
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 201754045.373.00$2,450
Jul 20170043.873.09$0
Jun 201750042.493.09$2,125
May 20170045.373.26$0
Apr 201755047.933.21$2,636
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 201755049.413.42$2,718
Dec 20160048.763.72$0
Nov 201655042.492.64$2,337
Oct 20160046.193.09$0
Sep 201657041.553.10$2,368
Aug 20160041.442.92$0
Jul 201631041.622.92$1,290
Jun 20160045.352.69$0
May 201658042.521.99$2,466
Apr 20160036.561.99$0
Mar 201658033.011.79$1,915
Feb 20160026.472.06$0
Jan 201655027.352.36$1,504
Dec 20150032.362.00$0
Nov 201558038.792.17$2,250
Oct 20150043.552.43$0
Sep 201557042.992.76$2,450
Aug 20150040.162.87$0
Jul 201555048.152.95$2,648
Jun 20150056.152.88$0
May 201555055.212.96$3,037
Apr 201556049.822.71$2,790
Mar 20150042.892.93$0
Feb 201558044.662.98$2,590
Jan 20150043.433.10$0
Dec 201451054.693.59$2,789
Nov 20140070.464.25$0
Oct 201456078.303.90$4,385
Sep 20140086.164.05$0
Aug 201451089.394.04$4,559
Jul 201457096.564.18$5,504
Jun 20140098.164.74$0
May 201460094.734.73$5,684
Apr 201457095.944.81$5,469
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 201457090.404.86$5,153
Dec 201352091.824.35$4,775
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 2013550104.113.72$5,726
Aug 2013440104.253.52$4,587
Jul 201300102.523.72$0
Jun 201356094.403.93$5,286
May 201355094.834.15$5,216
Apr 20130093.964.28$0
Mar 201357093.623.91$5,336
Feb 201358091.233.42$5,291
Jan 201352091.603.42$4,763
Dec 20120086.773.42$0
Nov 201256086.953.62$4,869
Oct 20120089.383.40$0
Sep 201256094.672.92$5,302
Aug 201255092.662.91$5,096
Jul 20120085.133.02$0
Jun 201261079.822.52$4,869
May 201260091.612.49$5,497
Apr 201200101.652.00$0
Mar 2012590105.052.22$6,198
Feb 201200101.102.57$0
Jan 201255098.092.73$5,395
Dec 201162096.873.24$6,006
Nov 20110095.723.31$0
Oct 201153084.983.65$4,504
Sep 201160083.623.99$5,017
Aug 201161083.404.15$5,087
Jul 20110094.144.52$0
Jun 201159092.904.64$5,481
May 20110098.134.40$0
Apr 2011570105.964.33$6,040
Mar 201159096.364.06$5,685
Feb 20110085.644.18$0
Jan 201157086.504.59$4,931
Dec 201054085.734.35$4,629
Nov 20100080.843.80$0
Oct 201061078.103.51$4,764
Sep 20100072.633.98$0
Aug 201060073.684.42$4,421
Jul 20100072.554.74$0
Jun 201060070.364.91$4,222
May 201060071.124.24$4,267
Apr 20100081.694.12$0
Mar 201059078.394.39$4,625
Feb 20100073.585.44$0
Jan 201050074.365.96$3,718
Dec 200957071.445.48$4,072
Nov 20090074.593.75$0
Oct 200960072.544.11$4,352
Sep 200955065.543.06$3,605
Aug 20090067.423.22$0
Jul 200960061.133.46$3,668
Jun 200957066.163.90$3,771
May 20090054.743.93$0
Apr 200954046.773.59$2,526
Mar 200958042.144.06$2,444
Feb 20090032.814.63$0
Jan 200955035.865.37$1,972
Dec 200857037.105.98$2,115
Nov 20080055.496.86$0
Oct 200856075.246.92$4,213
Sep 2008570101.767.88$5,800
Aug 2008570114.228.48$6,511
Jul 200800131.0811.39$0
Jun 2008580131.3313.03$7,617
May 2008560123.1711.57$6,898
Apr 2008560110.3110.45$6,177
Mar 2008540101.909.66$5,503
Feb 20080092.538.77$0
Jan 200852090.388.21$4,700
Dec 200757088.337.30$5,035
Nov 200751091.677.29$4,675
Oct 20070082.856.92$0
Sep 200755075.846.24$4,171
Aug 200757069.066.39$3,936
Jul 20070070.906.39$0
Jun 200755062.007.55$3,410
May 200752058.747.85$3,054
Apr 200756059.617.81$3,338
Mar 2007107056.927.30$6,090
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 200652056.656.92$2,946
Nov 200657054.207.62$3,089
Oct 200658054.906.01$3,184
Sep 200660060.085.04$3,605
Aug 200650068.717.34$3,436
Jul 20060069.376.34$0
Jun 200657066.286.38$3,778
May 200655066.016.42$3,631
Apr 200656064.397.36$3,606
Mar 200656056.707.08$3,175
Feb 200660057.597.75$3,455
Jan 200657060.598.93$3,454
Dec 20050054.9413.42$0
Nov 200560054.6910.59$3,281
Oct 200557058.3413.80$3,325
Sep 200557061.4512.08$3,503
Aug 20050061.519.80$0
Jul 200557055.697.84$3,174
Jun 200553052.337.38$2,773
May 200551045.226.65$2,306
Apr 200556049.207.36$2,755
Mar 200560050.377.15$3,022
Feb 200558045.226.31$2,623
Jan 200557043.166.32$2,460
Dec 200455039.866.75$2,192
Nov 200455045.286.33$2,490
Oct 200452049.706.52$2,584
Sep 20040043.245.28$0
Aug 2004102042.375.55$4,322
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 200447037.486.49$1,762
Apr 200444034.475.86$1,517
Mar 200451034.365.53$1,752
Feb 200455032.455.51$1,785
Jan 200456032.036.30$1,794
Dec 200357030.266.30$1,725
Nov 200357028.804.60$1,642
Oct 20030028.174.76$0
Sep 200357026.314.75$1,500
Aug 200358029.765.13$1,726
Jul 20030029.415.17$0
Jun 200358028.565.98$1,656
May 200359026.595.97$1,569
Apr 200357026.675.41$1,520
Mar 200358031.146.10$1,806
Feb 200357033.487.93$1,908
Jan 20030030.315.58$0
Dec 200260026.914.85$1,615
Nov 200257024.664.14$1,406
Oct 20020026.464.23$0
Sep 200257027.443.64$1,564
Aug 200253025.963.16$1,376
Jul 20020024.583.06$0
Jun 200248023.733.34$1,139
May 200255024.663.58$1,356
Apr 200255023.653.51$1,301
Mar 20020022.003.10$0
Feb 200256018.222.38$1,020
Jan 200256017.172.38$962
Dec 200133016.932.36$559
Nov 20010018.072.41$0
Oct 200158019.782.53$1,147
Sep 200160024.262.25$1,456
Aug 20010024.873.05$0
Jul 200152023.933.20$1,244
Jun 200156024.563.82$1,375
May 200152025.524.31$1,327
Apr 20010024.685.34$0
Mar 200145024.545.38$1,104
Feb 200159027.755.77$1,637
Jan 200158027.478.40$1,593
Dec 200052026.889.12$1,398
Nov 20000032.215.66$0
Oct 200056031.235.15$1,749
Sep 200058031.875.19$1,848
Aug 200057029.644.54$1,689
Jul 200058028.534.09$1,655
Jun 20000029.304.40$0
May 200058027.263.68$1,581
Apr 200058024.513.12$1,422
Mar 200057028.422.86$1,620
Feb 200059027.622.73$1,630
Jan 200058025.272.48$1,466
Dec 199962024.282.42$1,505
Nov 199960023.192.43$1,391
Oct 199958020.982.80$1,217
Sep 199956021.752.62$1,218
Aug 199956019.262.88$1,079
Jul 19990017.892.37$0
Jun 199957015.942.36$909
May 199955015.792.32$868
Apr 1999113015.102.21$1,706
Mar 199957012.471.84$711
Feb 19995409.981.82$539
Jan 199956010.381.90$581
Dec 19985909.201.77$543
Nov 199855010.892.19$599
Oct 1998112012.421.97$1,391
Sep 19980012.592.08$0
Aug 199857011.301.91$644
Jul 1998117011.742.24$1,374
Jun 19980011.242.24$0
May 1998110012.622.21$1,388
Apr 199856013.042.51$730
Mar 199855012.802.31$704
Feb 199856013.952.30$781
Jan 1998116014.702.15$1,705
Dec 19970016.322.41$0
Nov 199760018.193.09$1,091
Oct 199760019.253.15$1,155
Sep 199760017.742.95$1,064
Aug 1997119017.862.55$2,125
Jul 199751017.582.25$897
Jun 19970017.242.26$0
May 1997111018.972.31$2,106
Apr 1997105017.882.08$1,877
Mar 199760018.951.94$1,137
Feb 199760020.492.21$1,229
Jan 1997120023.483.54$2,818
Dec 199663023.32$1,469
Nov 1996115021.97$2,527
Oct 199662023.31$1,445
Sep 199661022.22$1,355
Aug 199661020.26$1,236
Jul 199663019.55$1,232
Jun 199661018.73$1,143
May 199659019.43$1,146
Apr 199664021.51$1,377
Mar 199663019.38$1,221
Feb 1996122016.98$2,072
Jan 19960017.07$0
Dec 1995126017.19$2,166
Nov 199562116.00$992
Oct 199560115.43$926
Sep 19950116.18$0
Aug 199560115.92$955
Jul 1995120115.24$1,829
Jun 199558116.41$952
May 199561117.56$1,071
Apr 199561117.73$1,082
Mar 199559116.44$970
Feb 1995118116.58$1,956
Jan 199562115.92$987
Dec 199458115.03$872
Nov 199462115.90$986
Oct 199460115.58$935
Sep 199461115.29$933
Aug 199461116.13$984
Jul 199461117.56$1,071
Jun 1994123117.09$2,102
May 19940115.88$0
Apr 199461114.14$863
Mar 1994122112.46$1,520
Feb 199462112.50$775
Jan 199462112.66$785
Dec 1993122112.33$1,504
Nov 199362114.49$898
Oct 199359115.85$935
Sep 199356115.03$842
Aug 199358115.66$908
Jul 1993108115.46$1,670
Jun 199359116.79$991
May 1993118117.68$2,086
Apr 199360118.05$1,083
Mar 1993105118.14$1,905
Feb 1993118117.90$2,112
Jan 19930116.93$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 2025 — as filed, then multipliedworked
Oil                   56 bbl  × $ 60.55 =     $3,391
Casinghead gas         0 Mcf  × $  3.23 =         $0

────────────────────────────────────────────────────
Month total                                   $3,391

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. 7B/O/25646 is the state's own key, not one this site invented.