TROELL, CHARLES T.

Operated by MAZCO ENERGY LLC (P-5 537025) in the PLEASANTON, S. (CARRIZO SAND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 1387District 01Field 71926250OilCasinghead gasSaveExport
Value, all time
$2.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$156 k
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 14 leases and 38 wells, and the rule below applies to all of them.

Discovered
1952-07-22
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 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
OilDisposition37,315 bbl$2,640,705
Casinghead gasProduction5 Mcf$0
Total$2,640,705

5 Mcf of this lease's gas, across 5 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 (6)

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 28.9020, -98.4295. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

28.90245, -98.42933 · 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 6 wells
With a plug date
0.0%
0 of 6 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.
6100.0%

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.

6 wells

42-013010774
42-013010785
42-013010796
42-013010812
42-013011003
42-013011031

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 20262280106.413.05$24,261
Apr 2026162098.932.87$16,027
Mar 2026155089.753.15$13,911
Feb 2026235063.503.75$14,923
Jan 2026158059.138.00$9,343
Dec 2025155056.664.41$8,782
Nov 2025158058.593.93$9,257
Oct 2025242059.383.30$14,370
Sep 2025159062.743.08$9,976
Aug 2025230063.933.01$14,704
Jul 2025152066.743.32$10,144
Jun 2025155066.483.13$10,304
May 2025155060.553.23$9,385
Apr 2025156062.363.54$9,728
Mar 2025234067.704.27$15,842
Feb 2025158070.884.34$11,199
Jan 2025233074.324.28$17,317
Dec 2024228068.993.12$15,730
Nov 2024153069.052.20$10,565
Oct 2024153071.372.28$10,920
Sep 2024228069.612.36$15,871
Aug 2024236075.632.06$17,849
Jul 2024228079.932.15$18,224
Jun 2024242078.082.63$18,895
May 2024314078.812.20$24,746
Apr 2024160084.451.66$13,512
Mar 2024157080.301.55$12,607
Feb 2024227076.091.78$17,272
Jan 2024230073.023.30$16,795
Dec 2023157071.262.61$11,188
Nov 2023153077.892.81$11,917
Oct 2023154085.443.09$13,158
Sep 202379089.042.74$7,034
Aug 2023153080.522.67$12,320
Jul 2023233074.852.64$17,440
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 202378078.122.24$6,093
Mar 202381072.852.39$5,901
Feb 202375075.112.47$5,633
Jan 202380076.533.39$6,122
Dec 202280076.415.73$6,113
Nov 20220085.005.65$0
Oct 202282087.185.86$7,149
Sep 202277084.888.16$6,536
Aug 202285094.529.13$8,034
Jul 20221650101.587.54$16,761
Jun 2022800115.097.98$9,207
May 20222380109.378.43$26,030
Apr 2022770104.226.84$8,025
Mar 20221620108.885.08$17,639
Feb 2022160091.054.86$14,568
Jan 2022161081.844.54$13,176
Dec 2021163071.323.90$11,625
Nov 202179077.435.24$6,117
Oct 2021251079.795.71$20,027
Sep 20210069.865.35$0
Aug 202182066.024.22$5,414
Jul 202178070.783.98$5,521
Jun 202182069.493.38$5,698
May 202178063.483.02$4,951
Apr 202180060.362.76$4,829
Mar 202177061.302.72$4,720
Feb 202184057.805.55$4,855
Jan 202180050.412.81$4,033
Dec 202075044.642.68$3,348
Nov 202081038.772.71$3,140
Oct 202077036.972.48$2,847
Sep 2020163037.091.99$6,046
Aug 202085039.982.39$3,398
Jul 2020325038.371.83$12,470
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 202081014.751.80$1,195
Mar 2020168030.341.86$5,097
Feb 2020154049.881.98$7,682
Jan 2020165057.252.09$9,446
Dec 2019159059.012.30$9,383
Nov 201977055.302.75$4,258
Oct 2019155053.472.42$8,288
Sep 2019244055.052.66$13,432
Aug 2019155053.112.30$8,232
Jul 2019157056.272.46$8,834
Jun 2019156052.782.49$8,234
May 2019165058.482.74$9,649
Apr 2019160062.632.75$10,021
Mar 2019164056.803.06$9,315
Feb 201977050.852.79$3,915
Jan 2019236046.033.23$10,863
Dec 201883046.594.19$3,867
Nov 2018165052.934.24$8,733
Oct 2018166061.443.40$10,199
Sep 2018242059.543.11$14,409
Aug 2018162059.403.07$9,623
Jul 2018250065.142.93$16,285
Jun 2018161060.183.08$9,689
May 2018245065.382.90$16,018
Apr 2018153063.842.90$9,768
Mar 2018165061.222.79$10,101
Feb 2018159061.782.77$9,823
Jan 2018167062.874.01$10,499
Dec 2017163057.272.92$9,335
Nov 201785055.423.12$4,711
Oct 2017165049.292.98$8,133
Sep 2017163047.523.09$7,746
Aug 2017168045.373.00$7,622
Jul 2017248043.873.09$10,880
Jun 2017153042.493.09$6,501
May 2017229045.373.26$10,390
Apr 2017170047.933.21$8,148
Mar 2017257046.772.98$12,020
Feb 201773050.452.95$3,683
Jan 2017147049.413.42$7,263
Dec 2016159048.763.72$7,753
Nov 2016307042.492.64$13,044
Oct 2016148046.193.09$6,836
Sep 2016226041.553.10$9,390
Aug 2016152041.442.92$6,299
Jul 2016234041.622.92$9,739
Jun 2016150045.352.69$6,803
May 2016220042.521.99$9,354
Apr 2016121036.561.99$4,424
Mar 2016224033.011.79$7,394
Feb 201673026.472.06$1,932
Jan 2016220027.352.36$6,017
Dec 2015145032.362.00$4,692
Nov 2015235038.792.17$9,116
Oct 2015226043.552.43$9,842
Sep 2015144042.992.76$6,191
Aug 2015215040.162.87$8,634
Jul 2015228048.152.95$10,978
Jun 2015219056.152.88$12,297
May 2015224055.212.96$12,367
Apr 2015143049.822.71$7,124
Mar 2015224042.892.93$9,607
Feb 2015149044.662.98$6,654
Jan 2015220043.433.10$9,555
Dec 2014220054.693.59$12,032
Nov 20140070.464.25$0
Oct 2014288078.303.90$22,550
Sep 2014286086.164.05$24,642
Aug 2014146089.394.04$13,051
Jul 2014223096.564.18$21,533
Jun 2014157098.164.74$15,411
May 2014147094.734.73$13,925
Apr 2014230095.944.81$22,066
Mar 2014228095.895.06$21,863
Feb 2014221097.406.19$21,525
Jan 2014148090.404.86$13,379
Dec 2013284091.824.35$26,077
Nov 2013220088.853.74$19,547
Oct 2013217097.423.78$21,140
Sep 20132660104.113.72$27,693
Aug 20133020104.253.52$31,484
Jul 20132290102.523.72$23,477
Jun 2013306094.403.93$28,886
May 2013168094.834.15$15,931
Apr 2013232093.964.28$21,799
Mar 2013151093.623.91$14,137
Feb 2013276091.233.42$25,179
Jan 2013296091.603.42$27,114
Dec 2012139086.773.42$12,061
Nov 2012146086.953.62$12,695
Oct 2012142089.383.40$12,692
Sep 201273094.672.92$6,911
Aug 2012214092.662.91$19,829
Jul 2012144085.133.02$12,259
Jun 201272079.822.52$5,747
May 2012147091.612.49$13,467
Apr 20122750101.652.00$27,954
Mar 20121440105.052.22$15,127
Feb 20122130101.102.57$21,534
Jan 2012208098.092.73$20,403
Dec 201175096.873.24$7,265
Nov 2011205095.723.31$19,623
Oct 2011208084.983.65$17,676
Sep 2011211083.623.99$17,644
Aug 2011213083.404.15$17,764
Jul 2011206094.144.52$19,393
Jun 2011220092.904.64$20,438
May 2011283098.134.40$27,771
Apr 20111440105.964.33$15,258
Mar 2011213096.364.06$20,525
Feb 2011208085.644.18$17,813
Jan 2011204086.504.59$17,646
Dec 2010276085.734.35$23,661
Nov 2010206080.843.80$16,653
Oct 2010348078.103.51$27,179
Sep 2010206072.633.98$14,962
Aug 201072073.684.42$5,305
Jul 2010146072.554.74$10,592
Jun 201074070.364.91$5,207
May 2010124071.124.24$8,819
Apr 201062081.694.12$5,065
Mar 2010251078.394.39$19,676
Feb 2010122073.585.44$8,977
Jan 2010125074.365.96$9,295
Dec 2009123071.445.48$8,787
Nov 2009128074.593.75$9,548
Oct 2009126072.544.11$9,140
Sep 2009126065.543.06$8,258
Aug 2009235067.423.22$15,844
Jul 2009188061.133.46$11,492
Jun 2009190066.163.90$12,570
May 2009252054.743.93$13,794
Apr 2009140046.773.59$6,548
Mar 2009135042.144.06$5,689
Feb 2009109032.814.63$3,576
Jan 2009125035.865.37$4,483
Dec 2008125037.105.98$4,638
Nov 2008126055.496.86$6,992
Oct 2008194075.246.92$14,597
Sep 20081280101.767.88$13,025
Aug 20081210114.228.48$13,821
Jul 20081380131.0811.39$18,089
Jun 20081520131.3313.03$19,962
May 2008840123.1711.57$10,346
Apr 2008270110.3110.45$2,978
Mar 20082480101.909.66$25,271
Feb 200831092.538.77$2,868
Jan 200831090.388.21$2,802
Dec 200730088.337.30$2,650
Nov 200760091.677.29$5,500
Oct 200731082.856.92$2,568
Sep 200730075.846.24$2,275
Aug 200731069.066.39$2,141
Jul 200731070.906.39$2,198
Jun 200760062.007.55$3,720
May 200731058.747.85$1,821
Apr 200760059.617.81$3,577
Mar 20070056.927.30$0
Feb 200758055.108.22$3,196
Jan 20070050.306.73$0
Dec 200630056.656.92$1,700
Nov 200629054.207.62$1,572
Oct 200628054.906.01$1,537
Sep 200618060.085.04$1,081
Aug 200616068.717.34$1,099
Jul 200631069.376.34$2,150
Jun 200616066.286.38$1,060
May 200616066.016.42$1,056
Apr 200615064.397.36$966
Mar 200660056.707.08$3,402
Feb 200660057.597.75$3,455
Jan 200615060.598.93$909
Dec 200515054.9413.42$824
Nov 200515054.6910.59$820
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 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 20010024.873.05$0
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 20010024.685.34$0
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 20010027.478.40$0
Dec 20000026.889.12$0
Nov 20000032.215.66$0
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 20000027.263.68$0
Apr 20000024.513.12$0
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 1997122017.582.25$2,145
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19960020.26$0
Jul 19960019.55$0
Jun 19960018.73$0
May 19960019.43$0
Apr 19960021.51$0
Mar 19960019.38$0
Feb 19960016.98$0
Jan 19960017.07$0
Dec 19950017.19$0
Nov 19950016.00$0
Oct 19950015.43$0
Sep 19950016.18$0
Aug 19950015.92$0
Jul 19950015.24$0
Jun 19950016.41$0
May 19950017.56$0
Apr 19950017.73$0
Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940017.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19940012.46$0
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930012.33$0
Nov 19930014.49$0
Oct 19930115.85$0
Sep 19930015.03$0
Aug 199353015.66$830
Jul 19930015.46$0
Jun 19930016.79$0
May 199322117.68$389
Apr 19930018.05$0
Mar 199341118.14$744
Feb 19930117.90$0
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 2026 — as filed, then multipliedworked
Oil                  228 bbl  × $106.41 =    $24,261
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $24,261

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/1387 is the state's own key, not one this site invented.