CALVERT, J. H.

Operated by TRAILBLAZER ENERGY RESOURCES,LLC (P-5 100797) in the DOERING RANCH (GEORGETOWN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 71635District 01Field 25146230Hydrogen sulphide fieldCondensateGasSaveExport
Value, all time
$4.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$101 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
condensate, 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 47 leases and 57 wells, and the rule below applies to all of them.

Discovered
2006-02-17
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,200 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 2012-10-02.

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: HORIZONTAL MAX = 475.933 X ROOT OF A.

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
CondensateDisposition4,870 bbl$206,167
GasProduction1,191,899 Mcf$4,687,111
Total$4,893,278

170,700 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 (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 28.8089, -99.2955. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

28.80887, -99.29550 · 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
6,325 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 6,325 ft.

Completions filed
May 1977
1 of 1 wells

1 well

42-1633072816,325 ftMay 1977

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 202602,372106.413.05$7,225
Apr 202601,95398.932.87$5,605
Mar 202602,77289.753.15$8,730
Feb 202601,36763.503.75$5,127
Jan 202601,95459.138.00$15,628
Dec 202503,23156.664.41$14,260
Nov 202501,82758.593.93$7,174
Oct 202501,87559.383.30$6,197
Sep 202502,43862.743.08$7,502
Aug 202503,06263.933.01$9,231
Jul 202502,45266.743.32$8,129
Jun 202501,87966.483.13$5,879
May 2025095960.553.23$3,100
Apr 202501,61262.363.54$5,712
Mar 20251001,52067.704.27$13,258
Feb 202501,69070.884.34$7,336
Jan 202502,79774.324.28$11,967
Dec 202401,39668.993.12$4,357
Nov 202401,28869.052.20$2,832
Oct 202402,06671.372.28$4,713
Sep 202401,64569.612.36$3,889
Aug 202402,52575.632.06$5,211
Jul 202402,95979.932.15$6,352
Jun 202402,17578.082.63$5,729
May 202401,74878.812.20$3,843
Apr 202403,03484.451.66$5,034
Mar 202403,44080.301.55$5,315
Feb 202401,59776.091.78$2,848
Jan 202401,89273.023.30$6,239
Dec 202301,26571.262.61$3,303
Nov 202304,83477.892.81$13,572
Oct 202305,53985.443.09$17,100
Sep 2023765,62989.042.74$22,163
Aug 202301,64880.522.67$4,405
Jul 202302,04074.852.64$5,389
Jun 2023082068.962.26$1,852
May 202301,51070.622.23$3,363
Apr 202302,53078.122.24$5,662
Mar 202302,47272.852.39$5,916
Feb 202305,37475.112.47$13,251
Jan 202304,50576.533.39$15,262
Dec 202203,57576.415.73$20,481
Nov 202201,83085.005.65$10,333
Oct 202203,21887.185.86$18,870
Sep 202201,46684.888.16$11,968
Aug 2022096694.529.13$8,817
Jul 202201,285101.587.54$9,692
Jun 202201,481115.097.98$11,814
May 202204,154109.378.43$35,031
Apr 202201,123104.226.84$7,679
Mar 202204,020108.885.08$20,407
Feb 202201,13691.054.86$5,520
Jan 202201,02181.844.54$4,633
Dec 2021094171.323.90$3,669
Nov 2021091777.435.24$4,802
Oct 202104,26779.795.71$24,381
Sep 202101,07269.865.35$5,736
Aug 202101,24566.024.22$5,255
Jul 202103,99270.783.98$15,896
Jun 2021092669.493.38$3,130
May 202105,43363.483.02$16,395
Apr 202105,14460.362.76$14,189
Mar 202104,92661.302.72$13,384
Feb 202103,50157.805.55$19,423
Jan 202105,63650.412.81$15,839
Dec 20201455,26944.642.68$20,570
Nov 202005,05238.772.71$13,674
Oct 202005,76136.972.48$14,278
Sep 202006,35437.091.99$12,651
Aug 202002,49439.982.39$5,948
Jul 202002,55538.371.83$4,663
Jun 202002,66134.901.69$4,498
May 202003,83016.921.81$6,950
Apr 202004,59114.751.80$8,284
Mar 202001,07130.341.86$1,988
Feb 202003,97149.881.98$7,865
Jan 202004,29557.252.09$8,997
Dec 201904,99959.012.30$11,520
Nov 201904,48355.302.75$12,331
Oct 201901,91453.472.42$4,629
Sep 201901,73355.052.66$4,605
Aug 201901,79353.112.30$4,132
Jul 201901,01056.272.46$2,485
Jun 201901,32952.782.49$3,311
May 201901,40058.482.74$3,836
Apr 201901,48362.632.75$4,079
Mar 201901,49456.803.06$4,575
Feb 201901,16450.852.79$3,250
Jan 201901,65746.033.23$5,349
Dec 201801,42446.594.19$5,960
Nov 201801,41052.934.24$5,975
Oct 201801,37361.443.40$4,666
Sep 201801,39059.543.11$4,320
Aug 201802,36759.403.07$7,259
Jul 201802,62865.142.93$7,705
Jun 201802,39560.183.08$7,369
May 201802,48865.382.90$7,217
Apr 201802,69063.842.90$7,803
Mar 20181732,71861.222.79$18,166
Feb 201802,51261.782.77$6,948
Jan 201803,04262.874.01$12,196
Dec 201702,81657.272.92$8,227
Nov 201702,74155.423.12$8,547
Oct 201702,78549.292.98$8,310
Sep 201702,81647.523.09$8,694
Aug 201702,83745.373.00$8,523
Jul 201703,04143.873.09$9,388
Jun 201702,96142.493.09$9,141
May 201703,14845.373.26$10,273
Apr 201702,85347.933.21$9,163
Mar 201702,90046.772.98$8,653
Feb 201702,75350.452.95$8,129
Jan 201702,69049.413.42$9,197
Dec 201602,96848.763.72$11,049
Nov 201602,84142.492.64$7,513
Oct 201603,11246.193.09$9,617
Sep 201603,03241.553.10$9,401
Aug 20161503,15441.442.92$15,439
Jul 201603,23941.622.92$9,472
Jun 201603,09245.352.69$8,305
May 20161323,35942.521.99$12,301
Apr 201603,23836.561.99$6,447
Mar 201603,13433.011.79$5,622
Feb 201603,17626.472.06$6,554
Jan 201603,32427.352.36$7,859
Dec 201501,27432.362.00$2,550
Nov 201502,68738.792.17$5,824
Oct 201502,68243.552.43$6,508
Sep 201503,01642.992.76$8,319
Aug 201502,99640.162.87$8,606
Jul 201503,74648.152.95$11,032
Jun 2015092456.152.88$2,664
May 2015087155.212.96$2,574
Apr 201502,88249.822.71$7,800
Mar 201503,04442.892.93$8,933
Feb 201502,65344.662.98$7,896
Jan 201503,06243.433.10$9,494
Dec 201402,99254.693.59$10,745
Nov 201402,99270.464.25$12,722
Oct 201403,06478.303.90$11,953
Sep 201403,03186.164.05$12,262
Aug 201403,12089.394.04$12,590
Jul 201402,96696.564.18$12,397
Jun 201402,78798.164.74$13,202
May 20141432,95694.734.73$27,518
Apr 201403,11595.944.81$14,980
Mar 201402,92095.895.06$14,766
Feb 201402,64897.406.19$16,396
Jan 201402,16090.404.86$10,499
Dec 201302,46291.824.35$10,721
Nov 201302,24488.853.74$8,389
Oct 201302,30197.423.78$8,696
Sep 201302,452104.113.72$9,116
Aug 20131162,639104.253.52$21,389
Jul 201302,494102.523.72$9,272
Jun 201302,39094.403.93$9,401
May 201302,58194.834.15$10,709
Apr 201302,75593.964.28$11,799
Mar 201302,82593.623.91$11,054
Feb 201302,83591.233.42$9,695
Jan 201303,05891.603.42$10,458
Dec 201204,03386.773.42$13,794
Nov 201203,58886.953.62$13,006
Oct 201202,92489.383.40$9,941
Sep 20120094.672.92$0
Aug 201201,41192.662.91$4,103
Jul 20121342,91685.133.02$20,216
Jun 201203,28679.822.52$8,278
May 201203,22591.612.49$8,025
Apr 201202,609101.652.00$5,210
Mar 201203,366105.052.22$7,480
Feb 201203,014101.102.57$7,747
Jan 201203,50398.092.73$9,577
Dec 201103,25596.873.24$10,545
Nov 20110095.723.31$0
Oct 201101,98884.983.65$7,253
Sep 201102,88183.623.99$11,483
Aug 201103,53783.404.15$14,676
Jul 201103,30494.144.52$14,925
Jun 201103,29292.904.64$15,274
May 201103,64398.134.40$16,047
Apr 20111133,297105.964.33$26,260
Mar 201103,87796.364.06$15,730
Feb 201101,97085.644.18$8,235
Jan 201103,41386.504.59$15,662
Dec 201003,67485.734.35$15,974
Nov 201003,39080.843.80$12,866
Oct 201003,28178.103.51$11,513
Sep 201003,40972.633.98$13,566
Aug 201003,54073.684.42$15,645
Jul 201003,23972.554.74$15,341
Jun 201003,27670.364.91$16,086
May 201003,51171.124.24$14,870
Apr 201003,26381.694.12$13,452
Mar 201003,51478.394.39$15,422
Feb 2010963,25973.585.44$24,800
Jan 201003,96774.365.96$23,660
Dec 200903,73871.445.48$20,498
Nov 200903,76574.593.75$14,124
Oct 200903,89872.544.11$16,022
Sep 200904,15365.543.06$12,728
Aug 200904,06567.423.22$13,083
Jul 200904,86661.133.46$16,858
Jun 200901,08466.163.90$4,222
May 200903,89454.743.93$15,287
Apr 2009943,66446.773.59$17,541
Mar 200902,31842.144.06$9,409
Feb 200904,52332.814.63$20,955
Jan 200904,82135.865.37$25,894
Dec 200803,84437.105.98$22,976
Nov 200803,98155.496.86$27,311
Oct 200802,42975.246.92$16,813
Sep 200804,140101.767.88$32,611
Aug 200804,160114.228.48$35,289
Jul 200804,007131.0811.39$45,637
Jun 200804,226131.3313.03$55,076
May 200803,310123.1711.57$38,311
Apr 200803,090110.3110.45$32,306
Mar 20081284,001101.909.66$51,709
Feb 200803,86792.538.77$33,916
Jan 200802,42390.388.21$19,882
Dec 200704,12888.337.30$30,143
Nov 200704,28891.677.29$31,267
Oct 200704,60482.856.92$31,869
Sep 200704,38475.846.24$27,374
Aug 200704,44969.066.39$28,420
Jul 200704,17770.906.39$26,682
Jun 200703,38462.007.55$25,544
May 20071703,39958.747.85$36,655
Apr 200704,30559.617.81$33,601
Mar 200704,59556.927.30$33,553
Feb 200704,19755.108.22$34,483
Jan 200704,26550.306.73$28,690
Dec 200603,79356.656.92$26,242
Nov 200604,01954.207.62$30,615
Oct 200604,45754.906.01$26,804
Sep 200604,16660.085.04$20,985
Aug 200604,64468.717.34$34,087
Jul 200604,50669.376.34$28,580
Jun 200605,03766.286.38$32,156
May 200602,84266.016.42$18,260
Apr 200604,54864.397.36$33,475
Mar 20061664,55956.707.08$41,703
Feb 200604,22857.597.75$32,772
Jan 200604,89660.598.93$43,738
Dec 200505,35054.9413.42$71,772
Nov 200504,64754.6910.59$49,204
Oct 200505,13958.3413.80$70,896
Sep 200504,92861.4512.08$59,525
Aug 200504,94061.519.80$48,396
Jul 200505,51455.697.84$43,250
Jun 20051724,77752.337.38$44,260
May 200505,18645.226.65$34,493
Apr 200505,00749.207.36$36,854
Mar 200503,94250.377.15$28,205
Feb 200503,86945.226.31$24,421
Jan 20051664,09043.166.32$33,022
Dec 200404,08439.866.75$27,571
Nov 200404,05645.286.33$25,676
Oct 200405,10649.706.52$33,266
Sep 200402,20543.245.28$11,651
Aug 200402,69942.375.55$14,981
Jul 200402,93138.286.08$17,833
Jun 200403,49836.106.43$22,503
May 200402,55537.486.49$16,594
Apr 200402,60234.475.86$15,244
Mar 200403,73634.365.53$20,661
Feb 20041753,06332.455.51$22,555
Jan 20040032.036.30$0
Dec 200303,54030.266.30$22,308
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 200302,87526.314.75$13,654
Aug 200303,23629.765.13$16,600
Jul 200302,53329.415.17$13,098
Jun 200302,67928.565.98$16,028
May 200304,65826.595.97$27,821
Apr 200303,95326.675.41$21,375
Mar 20031643,99531.146.10$29,461
Feb 200303,03033.487.93$24,015
Jan 200303,51830.315.58$19,638
Dec 200203,66226.914.85$17,774
Nov 200203,38024.664.14$13,983
Oct 200203,11226.464.23$13,161
Sep 200202,03827.443.64$7,409
Aug 20021682,90225.963.16$13,544
Jul 200201,15324.583.06$3,530
Jun 200202,69823.733.34$9,007
May 200203,19924.663.58$11,465
Apr 200203,86023.653.51$13,558
Mar 200203,26222.003.10$10,121
Feb 200203,39318.222.38$8,061
Jan 200203,25417.172.38$7,730
Dec 200102,51616.932.36$5,949
Nov 200103,91018.072.41$9,406
Oct 20011663,58819.782.53$12,357
Sep 200103,60924.262.25$8,125
Aug 200103,37024.873.05$10,289
Jul 200103,99223.933.20$12,763
Jun 200104,51224.563.82$17,255
May 20011744,64025.524.31$24,426
Apr 200104,53824.685.34$24,212
Mar 200102,84624.545.38$15,301
Feb 200104,06027.755.77$23,414
Jan 20011753,84427.478.40$37,092
Dec 200002,37226.889.12$21,639
Nov 200004,56232.215.66$25,812
Oct 200003,83231.235.15$19,718
Sep 200001,83731.875.19$9,528
Aug 200003,84329.644.54$17,450
Jul 200005,54728.534.09$22,686
Jun 200003,68829.304.40$16,217
May 200003,95727.263.68$14,561
Apr 200003,04124.513.12$9,476
Mar 200002,77528.422.86$7,936
Feb 2000080427.622.73$2,192
Jan 200001625.272.48$40
Dec 199914333224.282.42$4,277
Nov 1999039623.192.43$964
Oct 1999031420.982.80$880
Sep 1999083021.752.62$2,174
Aug 1999065519.262.88$1,884
Jul 199901,45517.892.37$3,452
Jun 199901,61415.942.36$3,812
May 199901,99215.792.32$4,623
Apr 1999034715.102.21$766
Mar 1999032312.471.84$594
Feb 199901499.981.82$271
Jan 1999096610.381.90$1,835
Dec 199801279.201.77$225
Nov 19980010.892.19$0
Oct 1998033212.421.97$654
Sep 1998020512.592.08$427
Aug 19980011.301.91$0
Jul 199817970011.742.24$3,668
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 1998020012.802.31$462
Feb 199801313.952.30$30
Jan 1998099914.702.15$2,153
Dec 1997089016.322.41$2,146
Nov 199702,65418.193.09$8,196
Oct 1997065819.253.15$2,073
Sep 1997020517.742.95$606
Aug 199705,55617.862.55$14,194
Jul 199706,63917.582.25$14,917
Jun 199701,50417.242.26$3,395
May 199701,78818.972.31$4,128
Apr 199703,34017.882.08$6,956
Mar 19971203,91218.951.94$9,860
Feb 199703,11320.492.21$6,867
Jan 1997304,24623.483.54$15,734
Dec 199601,64723.32$0
Nov 199602,12221.97$0
Oct 199602,33823.31$0
Sep 19961013,14322.22$2,244
Aug 199602,98520.26$0
Jul 199602,00319.55$0
Jun 199601,79718.73$0
May 199604,10119.43$0
Apr 199603,22621.51$0
Mar 19961753,86019.38$3,392
Feb 199603,78116.98$0
Jan 199602,87117.07$0
Dec 199503,55017.19$0
Nov 199502,75516.00$0
Oct 199503,90015.43$0
Sep 199502,79416.18$0
Aug 199502,86015.92$0
Jul 199504,25215.24$0
Jun 19951744,10716.41$2,855
May 199503,58117.56$0
Apr 199504,24017.73$0
Mar 199503,83516.44$0
Feb 199503,50516.58$0
Jan 199503,93815.92$0
Dec 199403,68215.03$0
Nov 199404,41715.90$0
Oct 19941734,33415.58$2,695
Sep 199403,68815.29$0
Aug 199404,56516.13$0
Jul 199404,43117.56$0
Jun 199403,88017.09$0
May 199404,50615.88$0
Apr 199404,00914.14$0
Mar 19941635,29512.46$2,031
Feb 199405,28512.50$0
Jan 199403,83412.66$0
Dec 1993046012.33$0
Nov 199301,19414.49$0
Oct 199303,44115.85$0
Sep 19931454,84515.03$2,179
Aug 199303,43515.66$0
Jul 199306,69515.46$0
Jun 199304,93016.79$0
May 19931715,71617.68$3,023
Apr 199301,47018.05$0
Mar 199301,35918.14$0
Feb 199303,95517.90$0
Jan 199304,08316.93$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
Condensate             0 bbl  × $106.41 =         $0
Gas                2,372 Mcf  × $  3.05 =     $7,225

────────────────────────────────────────────────────
Month total                                   $7,225

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/G/71635 is the state's own key, not one this site invented.