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CALLIHAN, W. M. -A-

Operated by CASTILLO OIL COMPANY LLC (P-5 139634) in the LULING-BRANYON field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 987District 01Field 55679001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$1.0 M
Jan 1993 – May 2026
Value, last 12 filed months
$41 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The LULING-BRANYON field

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 507 leases and 2,955 wells, and the rule below applies to all of them.

Discovered
1922-08-08
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
150 ft
minimum

A drilling unit in this field needs at least 2 acres. The field rule took effect on 2018-06-19.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: “CORRELATIVE INTERVAL 1620' - 2164'”

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
OilDisposition19,745 bbl$1,008,894
Casinghead gasProduction8,295 Mcf$7,348
Total$1,016,242

5,290 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 (5)

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 29.8311, -97.6095. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

29.83098, -97.60941 · 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 5 wells
With a plug date
0.0%
0 of 5 wells
Median depth
2,368 ft
4 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.
5100.0%

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

Between 2,359 and 2,400 ft, median 2,368 ft, over the 4 wells that filed a depth.

Completions filed
Oct 1980 – Sep 1983
4 of 5 wells; 1 filed none

5 wells

42-055800361————
42-0553320462,375 ftSep 1983——
42-0553155042,400 ftNov 1981——
42-0553163052,360 ftMar 1981——
42-0553150722,359 ftOct 1980——

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 2026174098.932.87$17,214
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 2025118056.664.41$6,686
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 202595062.743.08$5,960
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 2025168066.483.13$11,169
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 202546070.884.34$3,260
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 2024110071.372.28$7,851
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 2024101079.932.15$8,073
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 2024161084.451.66$13,596
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 2024176073.023.30$12,852
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 2023161089.042.74$14,335
Aug 20230080.522.67$0
Jul 2023157074.852.64$11,751
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 2023165078.122.24$12,890
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 2023164076.533.39$12,551
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 2022157087.185.86$13,687
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 20221580101.587.54$16,050
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 20221690104.226.84$17,613
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 2022168081.844.54$13,749
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 2021158079.795.71$12,607
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 202192070.783.98$6,512
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 202198061.302.72$6,007
Feb 20210057.805.55$0
Jan 2021115050.412.81$5,797
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 2020164037.091.99$6,083
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 2020170034.901.69$5,933
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 2019155055.302.75$8,572
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 2019164053.112.30$8,710
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 2019168062.632.75$10,522
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 2019164046.033.23$7,549
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 2018160065.382.90$10,461
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 2018165061.782.77$10,194
Jan 20180062.874.01$0
Dec 2017171057.272.92$9,793
Nov 20170055.423.12$0
Oct 2017151049.292.98$7,443
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 2017157043.873.09$6,888
Jun 20170042.493.09$0
May 2017170045.373.26$7,713
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 2017163050.452.95$8,223
Jan 20170049.413.42$0
Dec 2016167048.763.72$8,143
Nov 20160042.492.64$0
Oct 2016167046.193.09$7,714
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 2016166041.622.92$6,909
Jun 20160045.352.69$0
May 2016164042.521.99$6,973
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 2016165026.472.06$4,368
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 2015117038.792.17$4,538
Oct 20150043.552.43$0
Sep 2015104042.992.76$4,471
Aug 201583040.162.87$3,333
Jul 20150048.152.95$0
Jun 2015162056.152.88$9,096
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 2015143042.892.93$6,133
Feb 20150044.662.98$0
Jan 2015114043.433.10$4,951
Dec 20140054.693.59$0
Nov 201481070.464.25$5,707
Oct 20140078.303.90$0
Sep 201462086.164.05$5,342
Aug 2014162089.394.04$14,481
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 2014165094.734.73$15,630
Apr 20140095.944.81$0
Mar 2014160095.895.06$15,342
Feb 20140097.406.19$0
Jan 2014166090.404.86$15,006
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 2013164097.423.78$15,977
Sep 201300104.113.72$0
Aug 20131640104.253.52$17,097
Jul 201300102.523.72$0
Jun 2013165094.403.93$15,576
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 2013161093.623.91$15,073
Feb 20130091.233.42$0
Jan 2013167091.603.42$15,297
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 2012167089.383.40$14,926
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 2012164085.133.02$13,961
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 20121610101.652.00$16,366
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 2012165098.092.73$16,185
Dec 20110096.873.24$0
Nov 2011160095.723.31$15,315
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 2011171083.404.15$14,261
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 2011155098.134.40$15,210
Apr 201100105.964.33$0
Mar 2011161096.364.06$15,514
Feb 20110085.644.18$0
Jan 2011166086.504.59$14,359
Dec 20100085.734.35$0
Nov 2010162080.843.80$13,096
Oct 20100078.103.51$0
Sep 2010163072.633.98$11,839
Aug 20100073.684.42$0
Jul 2010159072.554.74$11,535
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 2010166081.694.12$13,561
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 2010158074.365.96$11,749
Dec 20090071.445.48$0
Nov 2009163074.593.75$12,158
Oct 20090072.544.11$0
Sep 2009168065.543.06$11,011
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 200974054.743.93$4,051
Apr 20090046.773.59$0
Mar 2009125042.144.06$5,268
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 200889055.496.86$4,939
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 2008740114.228.48$8,452
Jul 2008780131.0811.39$10,224
Jun 200800131.3313.03$0
May 2008680123.1711.57$8,376
Apr 2008960110.3110.45$10,590
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 2008126090.388.21$11,388
Dec 20070088.337.30$0
Nov 2007138091.677.29$12,650
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 2005191061.519.80$11,748
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 20050045.226.31$0
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 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 2001168024.873.05$4,178
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 2001166024.685.34$4,097
Mar 20010024.545.38$0
Feb 2001161027.755.77$4,468
Jan 20010027.478.40$0
Dec 2000166026.889.12$4,462
Nov 2000155032.215.66$4,993
Oct 20000031.235.15$0
Sep 20000031.875.19$0
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 2000807227.263.68$2,446
Apr 20001477224.513.12$3,827
Mar 200006728.422.86$192
Feb 2000716227.622.73$2,130
Jan 20001205925.272.48$3,179
Dec 199906724.282.42$162
Nov 1999736023.192.43$1,839
Oct 1999696820.982.80$1,638
Sep 1999757021.752.62$1,815
Aug 1999624519.262.88$1,324
Jul 1999424617.892.37$861
Jun 19991305915.942.36$2,212
May 199907715.792.32$179
Apr 1999787815.102.21$1,350
Mar 199906212.471.84$114
Feb 199977659.981.82$887
Jan 199907410.381.90$141
Dec 19980719.201.77$126
Nov 199872010.892.19$784
Oct 199805412.421.97$106
Sep 1998484912.592.08$706
Aug 1998548411.301.91$770
Jul 1998728011.742.24$1,024
Jun 1998467911.242.24$694
May 1998638012.622.21$972
Apr 1998803013.042.51$1,118
Mar 199863012.802.31$806
Feb 1998797613.952.30$1,277
Jan 1998956714.702.15$1,541
Dec 1997727516.322.41$1,356
Nov 19978310618.193.09$1,837
Oct 19979511319.253.15$2,185
Sep 19979410317.742.95$1,972
Aug 1997808517.862.55$1,646
Jul 1997809217.582.25$1,613
Jun 19976312017.242.26$1,357
May 199710012118.972.31$2,176
Apr 199710212417.882.08$2,082
Mar 19979711318.951.94$2,057
Feb 1997758320.492.21$1,720
Jan 1997939723.483.54$2,527
Dec 19968811823.32—$2,052
Nov 19966910521.97—$1,516
Oct 199613613023.31—$3,170
Sep 19966914122.22—$1,533
Aug 19966615020.26—$1,337
Jul 19968214619.55—$1,603
Jun 19966415518.73—$1,199
May 19968515819.43—$1,652
Apr 19968214021.51—$1,764
Mar 199610413719.38—$2,016
Feb 19967712916.98—$1,307
Jan 19968212517.07—$1,400
Dec 1995827617.19—$1,410
Nov 1995678816.00—$1,072
Oct 19957211415.43—$1,111
Sep 19957310916.18—$1,181
Aug 1995789415.92—$1,242
Jul 1995876415.24—$1,326
Jun 1995924816.41—$1,510
May 1995728317.56—$1,264
Apr 19951148717.73—$2,021
Mar 199508816.44—$0
Feb 1995745516.58—$1,227
Jan 1995848715.92—$1,337
Dec 19948010315.03—$1,202
Nov 1994699515.90—$1,097
Oct 1994639615.58—$982
Sep 199410410715.29—$1,590
Aug 1994849716.13—$1,355
Jul 1994958417.56—$1,668
Jun 1994657617.09—$1,111
May 1994976415.88—$1,540
Apr 199411413214.14—$1,612
Mar 19949813212.46—$1,221
Feb 199415311912.50—$1,913
Jan 199417212912.66—$2,178
Dec 1993013112.33—$0
Nov 19939715514.49—$1,406
Oct 199310015515.85—$1,585
Sep 199310111515.03—$1,518
Aug 199311010815.66—$1,723
Jul 19931277915.46—$1,963
Jun 199323911116.79—$4,013
May 1993013817.68—$0
Apr 199317015218.05—$3,069
Mar 1993659218.14—$1,179
Feb 19931019617.90—$1,808
Jan 19931269716.93—$2,133

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.

Apr 2026 — as filed, then multipliedworked
Oil                  174 bbl  × $ 98.93 =    $17,214
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $17,214

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. 01/O/987 is the state's own key, not one this site invented.