BRILLHART, H. C.

Operated by AVALANCHE OIL & GAS LLC (P-5 37878) in the BRADFORD (TONKAWA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 47684District 10Field 11226800NGPA filingCondensateGasSaveExport
Value, all time
$1.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$12 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 91 leases and 219 wells, and the rule below applies to all of them.

Discovered
1958-11-19
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 640 acres. The field rule took effect on 1961-04-17.

The Commission's schedule remark for this field reads: MULTI 49B WITH 80 AC BASE UNIT UP TO 640 AC WITH 10% TOLERANCE.

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA1none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
CondensateDisposition1,114 bbl$59,482
GasProduction562,114 Mcf$1,833,558
Total$1,893,040

133,300 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 36.3149, -100.4875. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

36.31487, -100.48750 · 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
6,500 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 6,500 ft.

Completions filed
Nov 1969
1 of 1 wells

1 well

42-2953001916,500 ftNov 1969

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 2025040363.933.01$1,215
Jul 202513841966.743.32$10,599
Jun 20250066.483.13$0
May 2025021660.553.23$698
Apr 2025089062.363.54$3,153
Mar 2025068467.704.27$2,920
Feb 2025072670.884.34$3,151
Jan 2025077674.324.28$3,320
Dec 2024078068.993.12$2,435
Nov 2024078669.052.20$1,728
Oct 2024084771.372.28$1,932
Sep 2024078269.612.36$1,849
Aug 2024079975.632.06$1,649
Jul 2024082679.932.15$1,773
Jun 2024070378.082.63$1,852
May 2024086578.812.20$1,902
Apr 2024061784.451.66$1,024
Mar 2024093780.301.55$1,448
Feb 2024087776.091.78$1,564
Jan 2024093373.023.30$3,077
Dec 2023097971.262.61$2,556
Nov 2023094677.892.81$2,656
Oct 2023081785.443.09$2,522
Sep 2023093589.042.74$2,557
Aug 202301,02880.522.67$2,748
Jul 202301,09274.852.64$2,885
Jun 2023080968.962.26$1,827
May 2023090770.622.23$2,020
Apr 202301,01578.122.24$2,271
Mar 202301,02072.852.39$2,441
Feb 2023091775.112.47$2,261
Jan 202301,01476.533.39$3,435
Dec 202201,08776.415.73$6,228
Nov 202201,12785.005.65$6,363
Oct 202201,02187.185.86$5,987
Sep 202201,05184.888.16$8,580
Aug 202201,08694.529.13$9,912
Jul 202201,085101.587.54$8,183
Jun 202201,077115.097.98$8,591
May 202201,049109.378.43$8,846
Apr 202201,037104.226.84$7,091
Mar 202201,047108.885.08$5,315
Feb 2022097491.054.86$4,733
Jan 202201,09181.844.54$4,951
Dec 202101,03571.323.90$4,036
Nov 202101,03477.435.24$5,415
Oct 202101,10079.795.71$6,285
Sep 202101,04269.865.35$5,576
Aug 202101,06266.024.22$4,482
Jul 202101,04670.783.98$4,165
Jun 202101,02769.493.38$3,472
May 202101,07763.483.02$3,250
Apr 202101,06160.362.76$2,927
Mar 202101,02361.302.72$2,779
Feb 2021077857.805.55$4,316
Jan 202117197550.412.81$11,360
Dec 2020098744.642.68$2,641
Nov 2020095038.772.71$2,571
Oct 202001,02036.972.48$2,528
Sep 2020099937.091.99$1,989
Aug 202001,00839.982.39$2,404
Jul 2020098638.371.83$1,800
Jun 2020094034.901.69$1,589
May 202001,00616.921.81$1,826
Apr 2020099314.751.80$1,792
Mar 202001,04830.341.86$1,945
Feb 2020093849.881.98$1,858
Jan 2020099557.252.09$2,084
Dec 2019098159.012.30$2,261
Nov 2019097355.302.75$2,676
Oct 2019098753.472.42$2,387
Sep 2019093655.052.66$2,487
Aug 2019097153.112.30$2,238
Jul 2019098256.272.46$2,416
Jun 2019095152.782.49$2,369
May 2019098758.482.74$2,705
Apr 2019097962.632.75$2,693
Mar 201901,01056.803.06$3,093
Feb 2019091250.852.79$2,547
Jan 201901,04446.033.23$3,370
Dec 201801,10846.594.19$4,637
Nov 2018093852.934.24$3,975
Oct 201801,08061.443.40$3,670
Sep 201801,09259.543.11$3,394
Aug 201801,06759.403.07$3,272
Jul 2018099665.142.93$2,920
Jun 2018099060.183.08$3,046
May 201801,03265.382.90$2,994
Apr 2018093563.842.90$2,712
Mar 2018089661.222.79$2,497
Feb 2018092861.782.77$2,567
Jan 2018091762.874.01$3,677
Dec 2017098757.272.92$2,884
Nov 201701,05355.423.12$3,284
Oct 201701,19449.292.98$3,563
Sep 201701,05547.523.09$3,257
Aug 201701,22645.373.00$3,683
Jul 201701,22143.873.09$3,770
Jun 201701,25542.493.09$3,875
May 20171831,16545.373.26$12,105
Apr 201701,34047.933.21$4,304
Mar 201701,36946.772.98$4,085
Feb 201701,50050.452.95$4,429
Jan 2017087849.413.42$3,002
Dec 2016081648.763.72$3,038
Nov 2016087542.492.64$2,314
Oct 2016082446.193.09$2,546
Sep 2016086641.553.10$2,685
Aug 2016087841.442.92$2,568
Jul 2016084941.622.92$2,483
Jun 2016081745.352.69$2,194
May 2016089542.521.99$1,782
Apr 2016085836.561.99$1,708
Mar 2016089133.011.79$1,598
Feb 2016083626.472.06$1,725
Jan 2016088727.352.36$2,097
Dec 2015089732.362.00$1,795
Nov 2015086838.792.17$1,881
Oct 2015090343.552.43$2,191
Sep 2015087042.992.76$2,400
Aug 2015089940.162.87$2,582
Jul 2015089448.152.95$2,633
Jun 2015089256.152.88$2,572
May 2015090255.212.96$2,666
Apr 2015047349.822.71$1,280
Mar 2015042242.892.93$1,238
Feb 2015023644.662.98$702
Jan 2015083943.433.10$2,601
Dec 2014083154.693.59$2,984
Nov 2014080170.464.25$3,406
Oct 2014088778.303.90$3,460
Sep 2014078186.164.05$3,159
Aug 2014080789.394.04$3,256
Jul 2014083996.564.18$3,507
Jun 2014081698.164.74$3,865
May 2014090594.734.73$4,278
Apr 2014087095.944.81$4,184
Mar 201401,06695.895.06$5,391
Feb 2014051597.406.19$3,189
Jan 2014014990.404.86$724
Dec 2013079391.824.35$3,453
Nov 201301,06088.853.74$3,963
Oct 201301,12397.423.78$4,244
Sep 201301,051104.113.72$3,907
Aug 201301,050104.253.52$3,699
Jul 201301,079102.523.72$4,011
Jun 201301,03294.403.93$4,059
May 201301,09094.834.15$4,523
Apr 201301,00993.964.28$4,321
Mar 201301,04293.623.91$4,077
Feb 2013085091.233.42$2,907
Jan 2013099991.603.42$3,416
Dec 2012099086.773.42$3,386
Nov 2012087886.953.62$3,183
Oct 2012093089.383.40$3,162
Sep 2012090494.672.92$2,638
Aug 2012093092.662.91$2,705
Jul 2012093085.133.02$2,809
Jun 2012087979.822.52$2,214
May 2012091291.612.49$2,269
Apr 20120890101.652.00$1,777
Mar 201201,050105.052.22$2,333
Feb 20120786101.102.57$2,020
Jan 201201,11998.092.73$3,059
Dec 2011791,10796.873.24$11,239
Nov 201101,15295.723.31$3,815
Oct 201101,13584.983.65$4,141
Sep 201101,07383.623.99$4,277
Aug 201101,04383.404.15$4,328
Jul 201101,01194.144.52$4,567
Jun 2011098592.904.64$4,570
May 201101,07298.134.40$4,722
Apr 20110953105.964.33$4,130
Mar 201101,01096.364.06$4,098
Feb 201101,03385.644.18$4,318
Jan 20111911,08786.504.59$21,510
Dec 201001,18685.734.35$5,156
Nov 201001,07280.843.80$4,069
Oct 201001,32378.103.51$4,642
Sep 201001,10172.633.98$4,381
Aug 201001,06973.684.42$4,724
Jul 201001,10072.554.74$5,210
Jun 201001,08370.364.91$5,318
May 201001,15471.124.24$4,887
Apr 201001,14181.694.12$4,704
Mar 201001,16878.394.39$5,126
Feb 201001,06973.585.44$5,818
Jan 201001,21674.365.96$7,252
Dec 200901,24371.445.48$6,816
Nov 200901,15474.593.75$4,329
Oct 200901,20372.544.11$4,945
Sep 200901,19865.543.06$3,672
Aug 200901,25267.423.22$4,030
Jul 200901,31361.133.46$4,549
Jun 200901,19866.163.90$4,666
May 200901,20954.743.93$4,746
Apr 200901,16146.773.59$4,165
Mar 200901,21742.144.06$4,940
Feb 200901,10432.814.63$5,115
Jan 200901,24235.865.37$6,671
Dec 200801,24937.105.98$7,465
Nov 200801,22855.496.86$8,425
Oct 200801,33375.246.92$9,227
Sep 200801,289101.767.88$10,154
Aug 200801,408114.228.48$11,944
Jul 200801,322131.0811.39$15,057
Jun 200801,174131.3313.03$15,300
May 200801,277123.1711.57$14,780
Apr 200801,180110.3110.45$12,337
Mar 200801,243101.909.66$12,012
Feb 200801,19092.538.77$10,437
Jan 200801,15090.388.21$9,437
Dec 200701,20488.337.30$8,792
Nov 200701,25391.677.29$9,137
Oct 200701,29682.856.92$8,971
Sep 200701,22175.846.24$7,624
Aug 200701,26369.066.39$8,068
Jul 200701,30270.906.39$8,317
Jun 200701,16762.007.55$8,809
May 200701,26458.747.85$9,918
Apr 200701,23959.617.81$9,671
Mar 200701,26856.927.30$9,259
Feb 200701,11855.108.22$9,185
Jan 200701,22950.306.73$8,267
Dec 200601,31256.656.92$9,077
Nov 200601,25054.207.62$9,522
Oct 200601,31754.906.01$7,920
Sep 200601,27460.085.04$6,417
Aug 200601,19568.717.34$8,771
Jul 200601,29769.376.34$8,227
Jun 200601,26966.286.38$8,101
May 200601,30566.016.42$8,385
Apr 200601,27564.397.36$9,385
Mar 200601,42856.707.08$10,114
Feb 200601,30057.597.75$10,076
Jan 200601,40560.598.93$12,551
Dec 200501,42754.9413.42$19,144
Nov 200501,41854.6910.59$15,014
Oct 200501,43658.3413.80$19,811
Sep 200501,39061.4512.08$16,790
Aug 200501,44461.519.80$14,147
Jul 200501,43355.697.84$11,240
Jun 200501,38652.337.38$10,230
May 200501,44945.226.65$9,638
Apr 200501,39649.207.36$10,275
Mar 200501,45350.377.15$10,396
Feb 200501,35745.226.31$8,565
Jan 200501,48243.166.32$9,370
Dec 200401,49539.866.75$10,093
Nov 2004741,49245.286.33$12,796
Oct 200401,49949.706.52$9,766
Sep 200401,45743.245.28$7,699
Aug 200401,50142.375.55$8,332
Jul 200401,49238.286.08$9,078
Jun 200401,44236.106.43$9,276
May 200401,49437.486.49$9,703
Apr 200401,56834.475.86$9,186
Mar 200401,37734.365.53$7,615
Feb 200401,43632.455.51$7,912
Jan 200401,64132.036.30$10,338
Dec 200301,65430.266.30$10,423
Nov 200301,59628.804.60$7,334
Oct 200301,68528.174.76$8,020
Sep 200301,55526.314.75$7,385
Aug 200301,64629.765.13$8,444
Jul 200301,60929.415.17$8,320
Jun 200301,66028.565.98$9,932
May 200301,70226.595.97$10,166
Apr 200301,67526.675.41$9,057
Mar 200301,75031.146.10$10,668
Feb 200301,57533.487.93$12,483
Jan 200301,76830.315.58$9,869
Dec 200201,79326.914.85$8,703
Nov 200201,75524.664.14$7,260
Oct 200201,84926.464.23$7,820
Sep 200201,85227.443.64$6,732
Aug 200201,73825.963.16$5,499
Jul 200201,82524.583.06$5,588
Jun 200201,77223.733.34$5,915
May 200201,81524.663.58$6,505
Apr 200201,30823.653.51$4,594
Mar 200201,72322.003.10$5,346
Feb 200201,46818.222.38$3,488
Jan 200201,83417.172.38$4,357
Dec 200101,85816.932.36$4,393
Nov 200101,82618.072.41$4,392
Oct 200101,89419.782.53$4,790
Sep 200101,85124.262.25$4,167
Aug 200101,93724.873.05$5,914
Jul 200102,04423.933.20$6,535
Jun 200101,33524.563.82$5,105
May 200101,37325.524.31$5,914
Apr 200101,80624.685.34$9,636
Mar 200101,85624.545.38$9,979
Feb 200101,60827.755.77$9,273
Jan 200101,79027.478.40$15,034
Dec 200001,88926.889.12$17,232
Nov 200001,65832.215.66$9,381
Oct 200001,93831.235.15$9,972
Sep 200001,70131.875.19$8,822
Aug 200001,80329.644.54$8,187
Jul 200001,82228.534.09$7,452
Jun 200001,87929.304.40$8,262
May 200001,94427.263.68$7,153
Apr 200001,88724.513.12$5,880
Mar 200001,95328.422.86$5,585
Feb 2000241,69627.622.73$5,287
Jan 2000271,88725.272.48$5,363
Dec 199901,90224.282.42$4,610
Nov 1999141,86423.192.43$4,862
Oct 199901,96820.982.80$5,518
Sep 1999321,92121.752.62$5,727
Aug 1999321,99219.262.88$6,345
Jul 199901,99617.892.37$4,735
Jun 199901,92715.942.36$4,552
May 199902,02415.792.32$4,698
Apr 199901,93515.102.21$4,273
Mar 199901,97812.471.84$3,636
Feb 199901,7889.981.82$3,250
Jan 199901,75210.381.90$3,329
Dec 199801,9399.201.77$3,438
Nov 199801,97010.892.19$4,306
Oct 199802,10412.421.97$4,143
Sep 199802,03412.592.08$4,236
Aug 199801,88811.301.91$3,601
Jul 199801,84611.742.24$4,130
Jun 199802,02111.242.24$4,522
May 199802,01412.622.21$4,444
Apr 199801,93513.042.51$4,848
Mar 199801,96512.802.31$4,538
Feb 199801,78613.952.30$4,106
Jan 199802,03614.702.15$4,387
Dec 199702,04916.322.41$4,940
Nov 199702,13818.193.09$6,603
Oct 199702,21719.253.15$6,983
Sep 199702,08417.742.95$6,158
Aug 199702,02817.862.55$5,181
Jul 199701,94917.582.25$4,379
Jun 199701,82917.242.26$4,128
May 199702,13618.972.31$4,931
Apr 199702,00417.882.08$4,174
Mar 199702,22618.951.94$4,317
Feb 199702,03520.492.21$4,489
Jan 199702,22423.483.54$7,872
Dec 199602,25323.32$0
Nov 199602,18221.97$0
Oct 199602,27423.31$0
Sep 199602,10822.22$0
Aug 199602,20120.26$0
Jul 199602,26619.55$0
Jun 199602,24418.73$0
May 199602,19219.43$0
Apr 199602,32621.51$0
Mar 19961362,40819.38$2,636
Feb 199602,00416.98$0
Jan 199602,26117.07$0
Dec 199502,45817.19$0
Nov 199502,48316.00$0
Oct 199502,55815.43$0
Sep 199502,49516.18$0
Aug 199502,59815.92$0
Jul 199502,58215.24$0
Jun 199502,51316.41$0
May 199502,64717.56$0
Apr 199502,46917.73$0
Mar 199502,99216.44$0
Feb 199502,33316.58$0
Jan 199502,60115.92$0
Dec 199402,76515.03$0
Nov 1994132,50015.90$207
Oct 199402,86215.58$0
Sep 199402,89315.29$0
Aug 199402,93316.13$0
Jul 199403,05117.56$0
Jun 199402,97317.09$0
May 199403,12515.88$0
Apr 199403,03814.14$0
Mar 199403,17012.46$0
Feb 199402,91612.50$0
Jan 199403,31912.66$0
Dec 199303,35312.33$0
Nov 199303,30614.49$0
Oct 199303,54915.85$0
Sep 199303,49315.03$0
Aug 199303,67615.66$0
Jul 199303,81215.46$0
Jun 199304,01216.79$0
May 199304,44617.68$0
Apr 199304,62618.05$0
Mar 199301,78118.14$0
Feb 199301,97917.90$0
Jan 199302,27416.93$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.

Aug 2025 — as filed, then multipliedworked
Condensate             0 bbl  × $ 63.93 =         $0
Gas                  403 Mcf  × $  3.01 =     $1,215

────────────────────────────────────────────────────
Month total                                   $1,215

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. 10/G/47684 is the state's own key, not one this site invented.