BLACK STONE MINERALS

Operated by TRAP ROCK OIL, LTD. (P-5 865425) in the BOYLE (4800 RINCON) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 12888District 04Field 11096950OilCasinghead gasSaveExport
Value, all time
$2.6 M
Dec 1999 – May 2026
Value, last 12 filed months
$42 k
at the published price for each month
Months reported
318
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 4 leases and 4 wells, and the rule below applies to all of them.

Discovered
1979-11-21
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

The Commission's schedule remark for this field reads: ALLOCATION FORMULA EFF. 7-1-80 PER AMENDMENT TO SWR 28 & 29

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
OilDisposition46,624 bbl$2,503,619
Casinghead gasProduction23,849 Mcf$80,914
Total$2,584,534

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 26.4403, -98.6602. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

26.44028, -98.66024 · 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
5,200 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 5,200 ft.

Completions filed
Dec 1999
1 of 1 wells

1 well

42-4273141325,200 ftDec 1999

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 (318)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

318 months

May 202600106.413.05$0
Apr 20260098.932.87$0
Mar 20261798989.753.15$16,346
Feb 20260463.503.75$15
Jan 20260559.138.00$40
Dec 202509056.664.41$397
Nov 202508058.593.93$314
Oct 202507959.383.30$261
Sep 202508062.743.08$246
Aug 20251746763.933.01$11,326
Jul 202506766.743.32$222
Jun 20251876466.483.13$12,632
May 202505860.553.23$187
Apr 202507862.363.54$276
Mar 20251858467.704.27$12,883
Feb 202507770.884.34$334
Jan 202508574.324.28$364
Dec 2024179068.993.12$12,349
Nov 2024014869.052.20$325
Oct 202417110071.372.28$12,432
Sep 20240069.612.36$0
Aug 20241808275.632.06$13,783
Jul 202408079.932.15$172
Jun 20241795678.082.63$14,124
May 202405378.812.20$117
Apr 202407484.451.66$123
Mar 20241808380.301.55$14,582
Feb 202407976.091.78$141
Jan 20241748973.023.30$12,999
Dec 202308671.262.61$225
Nov 20231829177.892.81$14,431
Oct 202308385.443.09$256
Sep 20231579489.042.74$14,236
Aug 20231898380.522.67$15,440
Jul 202309074.852.64$238
Jun 20231828368.962.26$12,738
May 202308870.622.23$196
Apr 202318110278.122.24$14,368
Mar 202307772.852.39$184
Feb 20231849075.112.47$14,042
Jan 20231838876.533.39$14,303
Dec 20220076.415.73$0
Nov 202208885.005.65$497
Oct 202209787.185.86$569
Sep 202208184.888.16$661
Aug 202209594.529.13$867
Jul 2022080101.587.54$603
Jun 2022080115.097.98$638
May 202218281109.378.43$20,588
Apr 202218075104.226.84$19,272
Mar 202218097108.885.08$20,091
Feb 202209391.054.86$452
Jan 20221809281.844.54$15,149
Dec 2021011271.323.90$437
Nov 2021010577.435.24$550
Oct 20211887979.795.71$15,452
Sep 20211848869.865.35$13,325
Aug 202106866.024.22$287
Jul 202108270.783.98$327
Jun 202108269.493.38$277
May 20211878363.483.02$12,121
Apr 2021010860.362.76$298
Mar 20210061.302.72$0
Feb 202109157.805.55$505
Jan 2021011850.412.81$332
Dec 2020172444.642.68$7,689
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 202008537.091.99$169
Aug 20201718339.982.39$7,035
Jul 202007138.371.83$130
Jun 202007334.901.69$123
May 202007716.921.81$140
Apr 20201709114.751.80$2,672
Mar 202009630.341.86$178
Feb 202017011249.881.98$8,701
Jan 202033913657.252.09$19,693
Dec 2019012259.012.30$281
Nov 201917911655.302.75$10,218
Oct 201918911153.472.42$10,374
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 201918116456.272.46$10,588
Jun 201918311452.782.49$9,943
May 201918116758.482.74$11,043
Apr 201919118862.632.75$12,479
Mar 201938416956.803.06$22,329
Feb 201919315750.852.79$10,252
Jan 201906246.033.23$200
Dec 20181893046.594.19$8,931
Nov 2018015852.934.24$669
Oct 201837616661.443.40$23,666
Sep 201819224259.543.11$12,184
Aug 201808359.403.07$255
Jul 20181888765.142.93$12,501
Jun 201818725360.183.08$12,032
May 201819012565.382.90$12,785
Apr 20180063.842.90$0
Mar 20181945461.222.79$12,027
Feb 201819019961.782.77$12,289
Jan 201819412762.874.01$12,706
Dec 2017192657.272.92$11,013
Nov 20170355.423.12$9
Oct 20170549.292.98$15
Sep 2017178047.523.09$8,459
Aug 20170145.373.00$3
Jul 20170443.873.09$12
Jun 201719215342.493.09$8,630
May 20171582845.373.26$7,260
Apr 201709447.933.21$302
Mar 20171597946.772.98$7,672
Feb 201719215550.452.95$10,144
Jan 201736321649.413.42$18,674
Dec 201619519948.763.72$10,249
Nov 201604742.492.64$124
Oct 201618420546.193.09$9,132
Sep 201636225041.553.10$15,816
Aug 201619226941.442.92$8,743
Jul 20161929441.622.92$8,266
Jun 201619322445.352.69$9,354
May 201619320542.521.99$8,615
Apr 201619311036.561.99$7,275
Mar 201604533.011.79$81
Feb 201619226226.472.06$5,623
Jan 201637025627.352.36$10,725
Dec 201518927132.362.00$6,658
Nov 201538025738.792.17$15,297
Oct 201537325943.552.43$16,873
Sep 201518027342.992.76$8,491
Aug 201538429640.162.87$16,272
Jul 201538027948.152.95$19,119
Jun 2015011156.152.88$320
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 201536715444.662.98$16,849
Jan 201518920143.433.10$8,832
Dec 201419319254.693.59$11,245
Nov 201437820270.464.25$27,493
Oct 201419421378.303.90$16,021
Sep 201438824086.164.05$34,401
Aug 201419326389.394.04$18,314
Jul 201438126296.564.18$37,884
Jun 201418823098.164.74$19,544
May 201419224994.734.73$19,365
Apr 201419526995.944.81$20,002
Mar 201419426395.895.06$19,933
Feb 201419221397.406.19$20,020
Jan 201439424990.404.86$36,828
Dec 2013022191.824.35$962
Nov 201319229388.853.74$18,155
Oct 201338335597.423.78$38,654
Sep 2013188332104.113.72$20,807
Aug 2013190356104.253.52$21,062
Jul 20130282102.523.72$1,048
Jun 201338129494.403.93$37,123
May 201319140794.834.15$19,801
Apr 201319235393.964.28$19,552
Mar 201319522193.623.91$19,121
Feb 201337731891.233.42$35,481
Jan 201319039291.603.42$18,745
Dec 201219045386.773.42$18,036
Nov 201219639886.953.62$18,485
Oct 2012040889.383.40$1,387
Sep 201238538494.672.92$37,569
Aug 201219141192.662.91$18,893
Jul 201238239985.133.02$33,725
Jun 201219146279.822.52$16,409
May 201238729991.612.49$36,197
Apr 2012192301101.652.00$20,118
Mar 20123840105.052.22$40,339
Feb 20123920101.102.57$39,631
Jan 2012395098.092.73$38,746
Dec 2011384096.873.24$37,198
Nov 2011582095.723.31$55,709
Oct 2011551084.983.65$46,824
Sep 2011178083.623.99$14,884
Aug 2011766083.404.15$63,884
Jul 20110094.144.52$0
Jun 2011176092.904.64$16,350
May 2011363098.134.40$35,621
Apr 201100105.964.33$0
Mar 2011384096.364.06$37,002
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 201015072.633.98$1,089
Aug 20100073.684.42$0
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
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 20050061.519.80$0
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 20044038.286.08$153
Jun 20043036.106.43$108
May 20044037.486.49$150
Apr 20044034.475.86$138
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 2001526024.873.05$13,082
Jul 2001880023.933.20$21,058
Jun 2001746024.563.82$18,322
May 2001748025.524.31$19,089
Apr 2001758024.685.34$18,707
Mar 2001955024.545.38$23,436
Feb 2001769027.755.77$21,340
Jan 2001770027.478.40$21,152
Dec 2000985026.889.12$26,477
Nov 2000739032.215.66$23,803
Oct 2000920031.235.15$28,732
Sep 2000720031.875.19$22,946
Aug 20001,046029.644.54$31,003
Jul 20001,051028.534.09$29,985
Jun 2000883029.304.40$25,872
May 20001,050027.263.68$28,623
Apr 20001,070024.513.12$26,226
Mar 20001,073028.422.86$30,495
Feb 20001,507727.622.73$41,642
Jan 20001,218725.272.48$30,796
Dec 19998783724.282.42$21,408

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.

Mar 2026 — as filed, then multipliedworked
Oil                  179 bbl  × $ 89.75 =    $16,065
Casinghead gas        89 Mcf  × $  3.15 =       $280

────────────────────────────────────────────────────
Month total                                  $16,346

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. 04/O/12888 is the state's own key, not one this site invented.