BIRK, C.

Operated by HEYDRICK PETROLEUM COMPANY (P-5 383199) in the HAMMON (ELLENBURGER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 17331District 09Field 38553400OilCasinghead gasSaveExport
Value, all time
$939 k
Jan 1993 – May 2026
Value, last 12 filed months
$9 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 3 leases and 14 wells, and the rule below applies to all of them.

Discovered
1950-03-14
as the register files it
Field class
Oil
the register's own label
Between wells
933 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 20 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
OilDisposition23,070 bbl$939,484
Casinghead gasProduction7 Mcf$0
Total$939,484

7 Mcf of this lease's gas, across 7 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 (2)

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 33.9034, -98.6776. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

33.90342, -98.67764 · 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
50.0%
1 of 2 wells
With a plug date
0.0%
0 of 2 wells
Median depth
4,631 ft
2 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
150.0%
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.
150.0%

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 4,590 and 4,671 ft, median 4,631 ft, over the 2 wells that filed a depth.

Completions filed
Oct 1993 – Jan 2011
2 of 2 wells

2 wells

42-4850167774,671 ftJan 2011Yes
42-48542864184,590 ftOct 1993

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 2026100106.413.05$1,064
Apr 202610098.932.87$989
Mar 202610089.753.15$898
Feb 202610063.503.75$635
Jan 202610059.138.00$591
Dec 202510056.664.41$567
Nov 202510058.593.93$586
Oct 202510059.383.30$594
Sep 202510062.743.08$627
Aug 202510063.933.01$639
Jul 202510066.743.32$667
Jun 202510066.483.13$665
May 202510060.553.23$606
Apr 202510062.363.54$624
Mar 202510067.704.27$677
Feb 202510070.884.34$709
Jan 202510074.324.28$743
Dec 202410068.993.12$690
Nov 202418069.052.20$1,243
Oct 202418071.372.28$1,285
Sep 202417069.612.36$1,183
Aug 202417075.632.06$1,286
Jul 202417079.932.15$1,359
Jun 202416078.082.63$1,249
May 202417078.812.20$1,340
Apr 202417084.451.66$1,436
Mar 202425080.301.55$2,008
Feb 202416076.091.78$1,217
Jan 202417073.023.30$1,241
Dec 202316071.262.61$1,140
Nov 202324077.892.81$1,869
Oct 202317085.443.09$1,452
Sep 202316089.042.74$1,425
Aug 202316080.522.67$1,288
Jul 202325074.852.64$1,871
Jun 202317068.962.26$1,172
May 20238070.622.23$565
Apr 202317078.122.24$1,328
Mar 202316072.852.39$1,166
Feb 20238075.112.47$601
Jan 202316076.533.39$1,224
Dec 202216076.415.73$1,223
Nov 202216085.005.65$1,360
Oct 202216087.185.86$1,395
Sep 202215084.888.16$1,273
Aug 20228094.529.13$756
Jul 2022160101.587.54$1,625
Jun 2022160115.097.98$1,841
May 202270109.378.43$766
Apr 2022150104.226.84$1,563
Mar 2022240108.885.08$2,613
Feb 20228091.054.86$728
Jan 202217081.844.54$1,391
Dec 202116071.323.90$1,141
Nov 202116077.435.24$1,239
Oct 202117079.795.71$1,356
Sep 202116069.865.35$1,118
Aug 202116066.024.22$1,056
Jul 202116070.783.98$1,132
Jun 202116069.493.38$1,112
May 202116063.483.02$1,016
Apr 202116060.362.76$966
Mar 202116061.302.72$981
Feb 20218057.805.55$462
Jan 202117050.412.81$857
Dec 202016044.642.68$714
Nov 202016038.772.71$620
Oct 202021036.972.48$776
Sep 202016037.091.99$593
Aug 202015039.982.39$600
Jul 202017038.371.83$652
Jun 202016034.901.69$558
May 202016016.921.81$271
Apr 202015014.751.80$221
Mar 202016030.341.86$485
Feb 202016049.881.98$798
Jan 202016057.252.09$916
Dec 201916059.012.30$944
Nov 201916055.302.75$885
Oct 201916053.472.42$856
Sep 201924055.052.66$1,321
Aug 201916053.112.30$850
Jul 201916056.272.46$900
Jun 201923052.782.49$1,214
May 201916058.482.74$936
Apr 201917062.632.75$1,065
Mar 201917056.803.06$966
Feb 201917050.852.79$864
Jan 20197046.033.23$322
Dec 201816046.594.19$745
Nov 201822052.934.24$1,164
Oct 201817061.443.40$1,044
Sep 201816059.543.11$953
Aug 201817059.403.07$1,010
Jul 201816065.142.93$1,042
Jun 201815060.183.08$903
May 201825065.382.90$1,635
Apr 201816063.842.90$1,021
Mar 201825061.222.79$1,531
Feb 201817061.782.77$1,050
Jan 201817062.874.01$1,069
Dec 201726057.272.92$1,489
Nov 201716055.423.12$887
Oct 201716049.292.98$789
Sep 201725047.523.09$1,188
Aug 201725045.373.00$1,134
Jul 201716043.873.09$702
Jun 201717042.493.09$722
May 201717045.373.26$771
Apr 201716047.933.21$767
Mar 201717046.772.98$795
Feb 201716050.452.95$807
Jan 201717049.413.42$840
Dec 201625048.763.72$1,219
Nov 201617042.492.64$722
Oct 201617046.193.09$785
Sep 201617041.553.10$706
Aug 201616041.442.92$663
Jul 201625041.622.92$1,041
Jun 201616045.352.69$726
May 201625042.521.99$1,063
Apr 201617036.561.99$622
Mar 201626033.011.79$858
Feb 201617026.472.06$450
Jan 201617027.352.36$465
Dec 201516032.362.00$518
Nov 201516038.792.17$621
Oct 201516043.552.43$697
Sep 201525042.992.76$1,075
Aug 201525040.162.87$1,004
Jul 201525048.152.95$1,204
Jun 201516056.152.88$898
May 201525055.212.96$1,380
Apr 201517049.822.71$847
Mar 201534042.892.93$1,458
Feb 201516044.662.98$715
Jan 201525043.433.10$1,086
Dec 201417054.693.59$930
Nov 201417070.464.25$1,198
Oct 20148078.303.90$626
Sep 201416086.164.05$1,379
Aug 201425089.394.04$2,235
Jul 201416096.564.18$1,545
Jun 201425098.164.74$2,454
May 201417094.734.73$1,610
Apr 201425095.944.81$2,399
Mar 201417095.895.06$1,630
Feb 201425097.406.19$2,435
Jan 201425090.404.86$2,260
Dec 201317091.824.35$1,561
Nov 201325088.853.74$2,221
Oct 201317097.423.78$1,656
Sep 2013250104.113.72$2,603
Aug 2013170104.253.52$1,772
Jul 2013170102.523.72$1,743
Jun 201317094.403.93$1,605
May 201317094.834.15$1,612
Apr 201325093.964.28$2,349
Mar 201317093.623.91$1,592
Feb 201317091.233.42$1,551
Jan 201325091.603.42$2,290
Dec 201226086.773.42$2,256
Nov 20129086.953.62$783
Oct 201217089.383.40$1,519
Sep 201217094.672.92$1,609
Aug 201216092.662.91$1,483
Jul 201216085.133.02$1,362
Jun 201217079.822.52$1,357
May 201230091.612.49$2,748
Apr 2012460101.652.00$4,676
Mar 2012310105.052.22$3,257
Feb 2012460101.102.57$4,651
Jan 201247098.092.73$4,610
Dec 201131096.873.24$3,003
Nov 201147095.723.31$4,499
Oct 201131084.983.65$2,634
Sep 201146083.623.99$3,847
Aug 201131083.404.15$2,585
Jul 201131094.144.52$2,918
Jun 201115092.904.64$1,394
May 201146098.134.40$4,514
Apr 2011310105.964.33$3,285
Mar 201151096.364.06$4,914
Feb 201152085.644.18$4,453
Jan 201151086.504.59$4,412
Dec 201051085.734.35$4,372
Nov 201034080.843.80$2,749
Oct 201034078.103.51$2,655
Sep 201034072.633.98$2,469
Aug 201051073.684.42$3,758
Jul 201034072.554.74$2,467
Jun 201034070.364.91$2,392
May 201051071.124.24$3,627
Apr 201050081.694.12$4,085
Mar 201033078.394.39$2,587
Feb 201017073.585.44$1,251
Jan 201051074.365.96$3,792
Dec 200934071.445.48$2,429
Nov 200951074.593.75$3,804
Oct 200950072.544.11$3,627
Sep 200950065.543.06$3,277
Aug 200934067.423.22$2,292
Jul 200950061.133.46$3,057
Jun 200950066.163.90$3,308
May 200933054.743.93$1,806
Apr 200951046.773.59$2,385
Mar 200968042.144.06$2,866
Feb 200936032.814.63$1,181
Jan 200952035.865.37$1,865
Dec 200853037.105.98$1,966
Nov 200853055.496.86$2,941
Oct 200853075.246.92$3,988
Sep 2008720101.767.88$7,327
Aug 2008690114.228.48$7,881
Jul 2008510131.0811.39$6,685
Jun 2008530131.3313.03$6,960
May 2008680123.1711.57$8,376
Apr 2008520110.3110.45$5,736
Mar 2008700101.909.66$7,133
Feb 200869092.538.77$6,385
Jan 200886090.388.21$7,773
Dec 2007123088.337.30$10,865
Nov 2007133091.677.29$12,192
Oct 2007121082.856.92$10,025
Sep 2007127075.846.24$9,632
Aug 2007131069.066.39$9,047
Jul 2007130070.906.39$9,217
Jun 2007128062.007.55$7,936
May 2007133058.747.85$7,812
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 2007132055.108.22$7,273
Jan 2007133050.306.73$6,690
Dec 2006132056.656.92$7,478
Nov 2006133054.207.62$7,209
Oct 20060054.906.01$0
Sep 2006124060.085.04$7,450
Aug 2006128068.717.34$8,795
Jul 2006132069.376.34$9,157
Jun 2006130066.286.38$8,616
May 2006130066.016.42$8,581
Apr 2006130064.397.36$8,371
Mar 20060056.707.08$0
Feb 2006133057.597.75$7,659
Jan 2006130060.598.93$7,877
Dec 2005130054.9413.42$7,142
Nov 2005136054.6910.59$7,438
Oct 20050058.3413.80$0
Sep 2005131061.4512.08$8,050
Aug 2005132061.519.80$8,119
Jul 2005133055.697.84$7,407
Jun 20050052.337.38$0
May 2005129045.226.65$5,833
Apr 2005131049.207.36$6,445
Mar 2005135050.377.15$6,800
Feb 20050045.226.31$0
Jan 2005133043.166.32$5,740
Dec 2004130039.866.75$5,182
Nov 2004134045.286.33$6,068
Oct 20040049.706.52$0
Sep 2004128043.245.28$5,535
Aug 2004129042.375.55$5,466
Jul 2004131038.286.08$5,015
Jun 20040036.106.43$0
May 2004130037.486.49$4,872
Apr 2004130034.475.86$4,481
Mar 2004139034.365.53$4,776
Feb 20040032.455.51$0
Jan 2004139032.036.30$4,452
Dec 2003136030.266.30$4,115
Nov 2003134028.804.60$3,859
Oct 20030028.174.76$0
Sep 2003129026.314.75$3,394
Aug 2003130029.765.13$3,869
Jul 2003124029.415.17$3,647
Jun 20030028.565.98$0
May 2003133026.595.97$3,536
Apr 2003130026.675.41$3,467
Mar 2003133031.146.10$4,142
Feb 2003133033.487.93$4,453
Jan 2003137030.315.58$4,152
Dec 20020026.914.85$0
Nov 2002131024.664.14$3,230
Oct 20020026.464.23$0
Sep 2002131027.443.64$3,595
Aug 2002130025.963.16$3,375
Jul 2002133024.583.06$3,269
Jun 20020023.733.34$0
May 2002128024.663.58$3,156
Apr 2002274023.653.51$6,480
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 2002163017.172.38$2,799
Dec 2001109016.932.36$1,845
Nov 200196018.072.41$1,735
Oct 20010019.782.53$0
Sep 2001122024.262.25$2,960
Aug 2001120024.873.05$2,984
Jul 2001116023.933.20$2,776
Jun 2001117024.563.82$2,874
May 2001115025.524.31$2,935
Apr 2001113024.685.34$2,789
Mar 20010024.545.38$0
Feb 2001126027.755.77$3,497
Jan 2001130027.478.40$3,571
Dec 2000129026.889.12$3,468
Nov 2000130032.215.66$4,187
Oct 20000031.235.15$0
Sep 2000121031.875.19$3,856
Aug 2000122029.644.54$3,616
Jul 2000123028.534.09$3,509
Jun 2000125029.304.40$3,663
May 2000129027.263.68$3,517
Apr 2000121024.513.12$2,966
Mar 2000128028.422.86$3,638
Feb 2000137027.622.73$3,784
Jan 2000142025.272.48$3,588
Dec 1999137024.282.42$3,326
Nov 1999296023.192.43$6,864
Oct 1999152020.982.80$3,189
Sep 1999313021.752.62$6,808
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 1999109.981.82$10
Jan 199934010.381.90$353
Dec 19985409.201.77$497
Nov 199817010.892.19$185
Oct 199834012.421.97$422
Sep 199846012.592.08$579
Aug 199844011.301.91$497
Jul 199889011.742.24$1,045
Jun 199888011.242.24$989
May 199844012.622.21$555
Apr 199887013.042.51$1,134
Mar 199891012.802.31$1,165
Feb 199844013.952.30$614
Jan 199892014.702.15$1,352
Dec 199790016.322.41$1,469
Nov 199745018.193.09$819
Oct 199784019.253.15$1,617
Sep 199784017.742.95$1,490
Aug 1997100017.862.55$1,786
Jul 199799017.582.25$1,740
Jun 199780017.242.26$1,379
May 199779018.972.31$1,499
Apr 199778017.882.08$1,395
Mar 199774018.951.94$1,402
Feb 199774020.492.21$1,516
Jan 199774023.483.54$1,738
Dec 199672023.32$1,679
Nov 199658021.97$1,274
Oct 199655023.31$1,282
Sep 199696022.22$2,133
Aug 1996103020.26$2,087
Jul 199668019.55$1,329
Jun 1996102018.73$1,910
May 199667019.43$1,302
Apr 199637021.51$796
Mar 199684019.38$1,628
Feb 199666016.98$1,121
Jan 1996103017.07$1,758
Dec 199543017.19$739
Nov 199566016.00$1,056
Oct 199569015.43$1,065
Sep 199555016.18$890
Aug 1995111015.92$1,767
Jul 1995226015.24$3,444
Jun 1995189016.41$3,101
May 1995194017.56$3,407
Apr 1995275017.73$4,876
Mar 1995182016.44$2,992
Feb 1995247016.58$4,095
Jan 1995259015.92$4,123
Dec 1994234015.03$3,517
Nov 1994197015.90$3,132
Oct 1994253015.58$3,942
Sep 1994212015.29$3,241
Aug 1994447016.13$7,210
Jul 1994582117.56$10,220
Jun 19947117.09$120
May 199466115.88$1,048
Apr 199462114.14$877
Mar 1994125112.46$1,558
Feb 199461112.50$763
Jan 1994126112.66$1,595
Dec 19930012.33$0
Nov 19930014.49$0
Oct 19930015.85$0
Sep 19930015.03$0
Aug 19930015.66$0
Jul 19930015.46$0
Jun 19930016.79$0
May 19930017.68$0
Apr 19930018.05$0
Mar 19930018.14$0
Feb 19930017.90$0
Jan 19930016.93$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                   10 bbl  × $106.41 =     $1,064
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                   $1,064

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. 09/O/17331 is the state's own key, not one this site invented.