BLAKE, JOHN ET AL

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the ALTA LOMA, S. (BIG GAS SD) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 11529District 03Field 01983490NGPA filingOilCasinghead gasSaveExport
Value, all time
$12.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$0
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 5 leases and 5 wells, and the rule below applies to all of them.

Discovered
1975-05-09
as the register files it
Field class
Oil
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition224,636 bbl$10,199,862
Casinghead gasProduction507,388 Mcf$2,408,250
Total$12,608,111

51,918 Mcf of this lease's gas, across 46 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 29.3560, -95.0744. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

29.35600, -95.07445 · 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
9,486 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 9,486 ft.

Completions filed
Jun 1977
1 of 1 wells

1 well

42-1673039519,486 ftJun 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 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 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 2020332014.751.80$4,897
Mar 2020501030.341.86$15,200
Feb 2020174049.881.98$8,679
Jan 2020355057.252.09$20,324
Dec 2019333859.012.30$19,669
Nov 2019342055.302.75$18,913
Oct 201935229353.472.42$19,530
Sep 201950620255.052.66$28,392
Aug 2019352053.112.30$18,695
Jul 20191709556.272.46$9,800
Jun 20190052.782.49$0
May 201934080158.482.74$22,078
Apr 20193694662.632.75$23,237
Mar 201948411656.803.06$27,846
Feb 20191817350.852.79$9,408
Jan 201911411246.033.23$5,609
Dec 2018713046.594.19$33,219
Nov 2018557052.934.24$29,482
Oct 2018352061.443.40$21,627
Sep 2018133059.543.11$7,919
Aug 20180059.403.07$0
Jul 2018281065.142.93$18,304
Jun 2018302060.183.08$18,174
May 2018347265.382.90$22,693
Apr 2018517063.842.90$33,005
Mar 2018366061.222.79$22,407
Feb 2018549061.782.77$33,917
Jan 2018566062.874.01$35,584
Dec 2017514057.272.92$29,437
Nov 2017352055.423.12$19,508
Oct 2017532049.292.98$26,222
Sep 2017164047.523.09$7,793
Aug 2017376045.373.00$17,059
Jul 2017555043.873.09$24,348
Jun 2017542042.493.09$23,030
May 2017719045.373.26$32,621
Apr 2017736047.933.21$35,276
Mar 2017552046.772.98$25,817
Feb 201719353850.452.95$11,325
Jan 2017355049.413.42$17,541
Dec 2016373048.763.72$18,187
Nov 2016709042.492.64$30,125
Oct 20161921,29546.193.09$12,870
Sep 20165181,40841.553.10$25,889
Aug 20165701,65241.442.92$28,452
Jul 20163711,81641.622.92$20,752
Jun 20163821,62245.352.69$21,680
May 20163731,42242.521.99$18,691
Apr 20163851,19736.561.99$16,459
Mar 201638158733.011.79$13,630
Feb 2016552026.472.06$14,611
Jan 201638867927.352.36$12,217
Dec 20153862,11032.362.00$16,714
Nov 20151921,34138.792.17$10,354
Oct 20153741,76743.552.43$20,575
Sep 20155504,09442.992.76$34,937
Aug 20151922,29840.162.87$14,312
Jul 20157455,92048.152.95$53,307
Jun 20151782,84156.152.88$18,185
May 20150055.212.96$0
Apr 20155616,95549.822.71$46,773
Mar 20157207,48842.892.93$52,856
Feb 20153584,24844.662.98$28,631
Jan 20155373,26543.433.10$33,445
Dec 20145753,13254.693.59$42,695
Nov 20145453,50670.464.25$53,308
Oct 20143834,35678.303.90$46,981
Sep 20147543,84286.164.05$80,507
Aug 20143713,16689.394.04$45,939
Jul 20145583,87096.564.18$70,056
Jun 20145713,99098.164.74$74,950
May 20145563,78494.734.73$70,555
Apr 20147594,55095.944.81$94,700
Mar 20143877,72595.895.06$76,173
Feb 20147405,78397.406.19$107,884
Jan 20143554,24790.404.86$52,735
Dec 20137584,38191.824.35$88,677
Nov 20135442,73988.853.74$58,574
Oct 20135152,99797.423.78$61,498
Sep 20136853,706104.113.72$85,093
Aug 20137354,122104.253.52$91,144
Jul 20135183,640102.523.72$66,638
Jun 20135682,84594.403.93$64,810
May 20133751,50994.834.15$41,822
Apr 20133701,71293.964.28$42,097
Mar 201301,28493.623.91$5,024
Feb 201338616991.233.42$35,793
Jan 20135521,54391.603.42$55,840
Dec 20123831,89686.773.42$39,718
Nov 2012384086.953.62$33,389
Oct 20127131,43589.383.40$68,606
Sep 201201,19994.672.92$3,499
Aug 20125402,95892.662.91$58,639
Jul 20127344,24385.133.02$75,303
Jun 20125244,03579.822.52$51,990
May 20127073,07191.612.49$72,410
Apr 20125372,318101.652.00$59,215
Mar 20125412,710105.052.22$62,854
Feb 20125462,945101.102.57$62,770
Jan 20125762,54098.092.73$63,444
Dec 20115752,36696.873.24$63,365
Nov 20115562,80795.723.31$62,515
Oct 20113822,28284.983.65$40,788
Sep 20117221,40583.623.99$65,974
Aug 20115661,39783.404.15$53,001
Jul 201155987194.144.52$56,559
Jun 2011379092.904.64$35,209
May 201137861198.134.40$39,784
Apr 2011370933105.964.33$43,248
Mar 201137692496.364.06$39,980
Feb 201136553985.644.18$33,512
Jan 20119442,50086.504.59$93,128
Dec 20105601,67985.734.35$55,309
Nov 20109291,82980.843.80$82,042
Oct 20107352,02578.103.51$64,509
Sep 201075345972.633.98$56,517
Aug 20109161,50173.684.42$74,124
Jul 20109271,71172.554.74$75,358
Jun 20105531,85070.364.91$47,993
May 20107381,71971.124.24$59,767
Apr 201091999881.694.12$79,188
Mar 201075978678.394.39$62,948
Feb 201095095973.585.44$75,120
Jan 201038248674.365.96$31,304
Dec 20091,09476171.445.48$82,328
Nov 20097301,38674.593.75$59,650
Oct 200991585472.544.11$69,884
Sep 20097391,25165.543.06$52,268
Aug 20099141,02167.423.22$64,908
Jul 20099302,28961.133.46$64,781
Jun 20099322,05666.163.90$69,669
May 20091,33512,66454.743.93$122,794
Apr 20093841,04546.773.59$21,709
Mar 200955327042.144.06$24,399
Feb 200936761832.814.63$14,904
Jan 200974175835.865.37$30,643
Dec 200855674237.105.98$25,063
Nov 200855082555.496.86$36,179
Oct 20085571,10775.246.92$49,571
Sep 2008190537101.767.88$23,564
Aug 2008919856114.228.48$112,230
Jul 20087262,244131.0811.39$120,722
Jun 20085572,234131.3313.03$102,266
May 20088842,052123.1711.57$132,633
Apr 20081,0661,542110.3110.45$133,712
Mar 20088871,329101.909.66$103,229
Feb 20088961,24392.538.77$93,809
Jan 200854292290.388.21$56,552
Dec 200752876488.337.30$52,217
Nov 20077121,42891.677.29$75,682
Oct 20075282,82082.856.92$63,265
Sep 20078812,48975.846.24$82,357
Aug 20075323,55369.066.39$59,436
Jul 20077113,81070.906.39$74,748
Jun 20077043,48462.007.55$69,947
May 20073501,46858.747.85$32,077
Apr 20077213,25159.617.81$68,354
Mar 20078791,71056.927.30$62,519
Feb 20077232,54455.108.22$60,739
Jan 20078675,80950.306.73$82,686
Dec 20068955,36956.656.92$87,847
Nov 20069005,48054.207.62$90,524
Oct 20068964,47054.906.01$76,072
Sep 20068981,81160.085.04$63,074
Aug 20061,0671,72568.717.34$85,975
Jul 200689289869.376.34$67,574
Jun 200689792366.286.38$65,345
May 200689497366.016.42$65,264
Apr 20061,05558364.397.36$72,223
Mar 20061,0841,84656.707.08$74,538
Feb 20061,4402,15157.597.75$99,602
Jan 20061,0732,42660.598.93$86,685
Dec 20051,2655,29954.9413.42$140,587
Nov 20051,2544,52754.6910.59$116,515
Oct 20051,4043,51158.3413.80$130,346
Sep 20057107,43161.4512.08$133,389
Aug 20051,41911,38861.519.80$198,849
Jul 20051,26211,72355.697.84$162,232
Jun 20058997,38352.337.38$101,539
May 20051,0604,41145.226.65$77,271
Apr 20051,6063,67549.207.36$106,065
Mar 20051,4153,58250.377.15$96,902
Feb 20051,0714,03745.226.31$73,912
Jan 20051,2533,78643.166.32$78,015
Dec 20049002,38339.866.75$51,962
Nov 20041,0551,64645.286.33$58,190
Oct 20041,0623,08849.706.52$72,900
Sep 20041,5962,66943.245.28$83,114
Aug 20041,24418342.375.55$53,724
Jul 20041,24199638.286.08$53,565
Jun 20041,23089536.106.43$50,161
May 20041,5591,10237.486.49$65,588
Apr 20041,22085134.475.86$47,039
Mar 20041,23471734.365.53$46,365
Feb 20043541,15932.455.51$17,873
Jan 2004139032.036.30$4,452
Dec 2003712030.266.30$21,545
Nov 20031,042028.804.60$30,010
Oct 20031,02965028.174.76$32,081
Sep 20031,3181,57226.314.75$42,143
Aug 20031,8362,05629.765.13$65,186
Jul 20032,8742,35029.415.17$96,676
Jun 20031,8702,94428.565.98$71,021
May 20031,5973,29426.595.97$62,138
Apr 200317218726.675.41$5,598
Mar 20031875231.146.10$6,140
Feb 2003346033.487.93$11,584
Jan 200353211630.315.58$16,772
Dec 2002711026.914.85$19,133
Nov 2002372024.664.14$9,174
Oct 2002182026.464.23$4,816
Sep 20021,4332,40927.443.64$48,079
Aug 20021,05722525.963.16$28,152
Jul 200268030624.583.06$17,651
Jun 20021,7732,51723.733.34$50,476
May 20021,4344824.663.58$35,534
Apr 20027175323.653.51$17,143
Mar 20023553922.003.10$7,931
Feb 20021731218.222.38$3,181
Jan 20020017.172.38$0
Dec 2001031016.932.36$733
Nov 200142018.072.41$759
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010524.873.05$15
Jul 20010023.933.20$0
Jun 200137032224.563.82$10,319
May 200171687725.524.31$22,050
Apr 20011741,29324.685.34$11,193
Mar 20011,0112,20224.545.38$36,649
Feb 200170482427.755.77$24,288
Jan 200152869127.478.40$20,308
Dec 20005401,24126.889.12$25,836
Nov 20007211,31632.215.66$30,669
Oct 200073662031.235.15$26,175
Sep 200036375531.875.19$15,485
Aug 200053460829.644.54$18,589
Jul 200089551328.534.09$27,632
Jun 20003611,12629.304.40$15,529
May 20007131,47727.263.68$24,871
Apr 20005411,41624.513.12$17,672
Mar 20007111,53028.422.86$24,582
Feb 20005221,47827.622.73$18,447
Jan 20007391,48425.272.48$22,356
Dec 19995351,40524.282.42$16,395
Nov 19997081,31823.192.43$19,627
Oct 19998761,46820.982.80$22,494
Sep 19995041,12921.752.62$13,919
Aug 199971391619.262.88$16,366
Jul 19996921,02517.892.37$14,812
Jun 19999031,04215.942.36$16,855
May 199968891415.792.32$12,985
Apr 199971677715.102.21$12,527
Mar 199935247012.471.84$5,253
Feb 19993431849.981.82$3,758
Jan 1999163010.381.90$1,692
Dec 19985227549.201.77$6,139
Nov 199890098010.892.19$11,943
Oct 199872390612.421.97$10,764
Sep 1998019912.592.08$414
Aug 199869969611.301.91$9,226
Jul 199868082811.742.24$9,836
Jun 199882991011.242.24$11,354
May 199867167012.622.21$9,946
Apr 199887188413.042.51$13,573
Mar 199852670712.802.31$8,366
Feb 199874061413.952.30$11,735
Jan 199869574514.702.15$11,822
Dec 199789075816.322.41$16,352
Nov 199770482818.193.09$15,363
Oct 199737150319.253.15$8,726
Sep 199791874517.742.95$18,487
Aug 199771486317.862.55$14,957
Jul 199790671617.582.25$17,536
Jun 199770593317.242.26$14,260
May 199789791118.972.31$19,119
Apr 199786550717.882.08$16,522
Mar 199735121418.951.94$7,066
Feb 199754117020.492.21$11,460
Jan 199787615423.483.54$21,114
Dec 199650743123.32$11,823
Nov 199670756421.97$15,533
Oct 19968761,27023.31$20,420
Sep 19966781,02022.22$15,065
Aug 19968711,14620.26$17,646
Jul 19968801,25619.55$17,204
Jun 19961,0531,56418.73$19,723
May 19966841,57519.43$13,290
Apr 19961,05187921.51$22,607
Mar 19967101,10119.38$13,760
Feb 199671494016.98$12,124
Jan 19961,04473717.07$17,821
Dec 19951,21290717.19$20,834
Nov 199535647216.00$5,696
Oct 199571087115.43$10,955
Sep 19951,0521,06916.18$17,021
Aug 199569781415.92$11,096
Jul 199568549015.24$10,439
Jun 199581025016.41$13,292
May 19951,25019017.56$21,950
Apr 19951,02734617.73$18,209
Mar 199535375916.44$5,803
Feb 19951,0661,12416.58$17,674
Jan 19957071,12715.92$11,255
Dec 19941,0301,05615.03$15,481
Nov 19941,0641,36415.90$16,918
Oct 19941,0581,10615.58$16,484
Sep 19946981,31615.29$10,672
Aug 19941,0601,39016.13$17,098
Jul 19941,0461,30317.56$18,368
Jun 19941,4171,17717.09$24,217
May 19941,2111,14215.88$19,231
Apr 19941,5681,17814.14$22,172
Mar 19941,0461,33812.46$13,033
Feb 19941,4111,40512.50$17,638
Jan 19943301,20812.66$4,178
Dec 199333753212.33$4,155
Nov 199304014.49$0
Oct 19930015.85$0
Sep 19930015.03$0
Aug 199303015.66$0
Jul 199333726015.46$5,210
Jun 19939991,56116.79$16,773
May 19931,4472,41017.68$25,583
Apr 19931,7192,77018.05$31,028
Mar 19931,7832,97518.14$32,344
Feb 19932,1093,18817.90$37,751
Jan 19931,4102,26716.93$23,871

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.

Apr 2020 — as filed, then multipliedworked
Oil                  332 bbl  × $ 14.75 =     $4,897
Casinghead gas         0 Mcf  × $  1.80 =         $0

────────────────────────────────────────────────────
Month total                                   $4,897

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. 03/O/11529 is the state's own key, not one this site invented.