SHASHKA

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the ARBOL DE NADA (DEVONIAN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 37604District 08Field 03371400OilCasinghead gasSaveExport
Value, all time
$6.0 M
May 2005 – May 2026
Value, last 12 filed months
$49 k
at the published price for each month
Months reported
253
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 41 wells, and the rule below applies to all of them.

Discovered
1986-09-14
as the register files it
Field class
Oil
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 2006-04-01.

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
OilDisposition48,294 bbl$3,479,095
Casinghead gasProduction592,490 Mcf$2,502,578
Total$5,981,673

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 31.9801, -102.7881. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.98009, -102.78807 · 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
8,480 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 8,480 ft.

Completions filed
Feb 2006
1 of 1 wells

1 well

42-1353884718,480 ftFeb 2006

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 (253)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

253 months

May 2026310106.413.05$3,299
Apr 20263243598.932.87$4,414
Mar 20263343389.753.15$4,325
Feb 20264437863.503.75$4,212
Jan 20265045359.138.00$6,580
Dec 20255676856.664.41$6,562
Nov 20254437958.593.93$4,066
Oct 20254531059.383.30$3,697
Sep 20253727762.743.08$3,174
Aug 20253730663.933.01$3,288
Jul 20252424166.743.32$2,401
Jun 20253623366.483.13$3,122
May 20255927960.553.23$4,474
Apr 20254727862.363.54$3,916
Mar 20254677467.704.27$6,418
Feb 20253773470.884.34$5,809
Jan 2025361,09474.324.28$7,356
Dec 2024331,39168.993.12$6,619
Nov 20242894669.052.20$4,013
Oct 20243835271.372.28$3,515
Sep 2024391,34269.612.36$5,888
Aug 2024383,97575.632.06$11,077
Jul 2024412,83679.932.15$9,365
Jun 2024323,06578.082.63$10,572
May 2024181,44878.812.20$4,602
Apr 2024282,09184.451.66$5,834
Mar 2024292,65680.301.55$6,433
Feb 2024252,34176.091.78$6,078
Jan 2024312,21073.023.30$9,551
Dec 2023361,96071.262.61$7,682
Nov 2023372,19877.892.81$9,053
Oct 20231885685.443.09$4,181
Sep 2023271,55289.042.74$6,649
Aug 2023392,22980.522.67$9,098
Jul 2023392,22574.852.64$8,797
Jun 2023361,86268.962.26$6,688
May 2023351,70270.622.23$6,263
Apr 2023361,91478.122.24$7,095
Mar 2023381,77072.852.39$7,004
Feb 2023341,55175.112.47$6,378
Jan 2023231,54276.533.39$6,984
Dec 202201,63776.415.73$9,379
Nov 202221,54785.005.65$8,905
Oct 202201,09087.185.86$6,392
Sep 202211,74784.888.16$14,347
Aug 202251,80594.529.13$16,947
Jul 2022232,123101.587.54$18,348
Jun 2022292,017115.097.98$19,428
May 20221162,301109.378.43$32,091
Apr 20222262,888104.226.84$43,301
Mar 20221430108.885.08$15,570
Feb 2022211,99491.054.86$11,601
Jan 2022212,08981.844.54$11,198
Dec 2021181,90471.323.90$8,708
Nov 2021171,48677.435.24$9,098
Oct 2021161,58379.795.71$10,322
Sep 2021261,71569.865.35$10,993
Aug 2021221,87666.024.22$9,370
Jul 2021211,54770.783.98$7,647
Jun 2021211,80569.493.38$7,561
May 2021202,02063.483.02$7,365
Apr 2021152,03260.362.76$6,511
Mar 2021192,18661.302.72$7,104
Feb 2021171,67957.805.55$10,298
Jan 2021261,62850.412.81$5,886
Dec 2020292,08244.642.68$6,865
Nov 2020271,98538.772.71$6,419
Oct 2020282,27536.972.48$6,674
Sep 2020302,19437.091.99$5,481
Aug 2020292,18039.982.39$6,359
Jul 20202020438.371.83$1,140
Jun 202021034.901.69$733
May 2020301,35516.921.81$2,967
Apr 20202798314.751.80$2,172
Mar 20203992930.341.86$2,908
Feb 20204292149.881.98$3,919
Jan 2020351,27057.252.09$4,664
Dec 2019422,54159.012.30$8,334
Nov 2019292,79655.302.75$9,295
Oct 2019513,16753.472.42$10,386
Sep 2019552,88155.052.66$10,683
Aug 2019523,19453.112.30$10,122
Jul 2019822,76856.272.46$11,424
Jun 2019912,36952.782.49$10,705
May 2019851,09958.482.74$7,982
Apr 20191032,60462.632.75$13,614
Mar 20191183,04356.803.06$16,020
Feb 2019752,82350.852.79$11,696
Jan 2019783,74546.033.23$15,680
Dec 2018563,32446.594.19$16,521
Nov 2018512,78752.934.24$14,509
Oct 2018573,41261.443.40$15,096
Sep 2018743,65559.543.11$15,766
Aug 2018833,45859.403.07$15,534
Jul 2018622,99765.142.93$12,826
Jun 2018531,43560.183.08$7,605
May 2018132,45865.382.90$7,980
Apr 2018162,58863.842.90$8,529
Mar 2018492,72261.222.79$10,586
Feb 2018462,48761.782.77$9,721
Jan 20181953,10062.874.01$24,689
Dec 20172052,35757.272.92$18,626
Nov 20171612,34655.423.12$16,238
Oct 2017942,34949.292.98$11,642
Sep 2017981,31447.523.09$8,714
Aug 20171532,72045.373.00$15,114
Jul 20171742,69743.873.09$15,960
Jun 20171081,91742.493.09$10,507
May 20172182,81945.373.26$19,090
Apr 20172053,67147.933.21$21,615
Mar 20171021,96146.772.98$10,622
Feb 2017663,94650.452.95$14,981
Jan 2017744,85449.413.42$20,251
Dec 2016883,68048.763.72$17,991
Nov 2016893,17642.492.64$12,180
Oct 20161173,46846.193.09$16,121
Sep 2016983,68741.553.10$15,504
Aug 20161013,78141.442.92$15,242
Jul 20161264,19541.622.92$17,512
Jun 20161844,90345.352.69$21,513
May 20161975,74842.521.99$19,821
Apr 20161925,92236.561.99$18,810
Mar 20162615,17233.011.79$17,894
Feb 20164764,66426.472.06$22,224
Jan 20165501,82427.352.36$19,355
Dec 20156131732.362.00$2,608
Nov 20151721,18738.792.17$9,245
Oct 20151591,97843.552.43$11,724
Sep 2015931,65442.992.76$8,561
Aug 20151683,56440.162.87$16,984
Jul 20151773,44348.152.95$18,662
Jun 20151502,41756.152.88$15,390
May 20152343,14555.212.96$22,214
Apr 20152665,19249.822.71$27,305
Mar 20153299,11442.892.93$40,858
Feb 20151303,60244.662.98$16,526
Jan 201521084143.433.10$11,728
Dec 20142993,28354.693.59$28,143
Nov 201414273870.464.25$13,143
Oct 2014881,93878.303.90$14,450
Sep 20142002,59586.164.05$27,730
Aug 20142724,91589.394.04$44,147
Jul 20141322,41996.564.18$22,856
Jun 2014884,28798.164.74$28,945
May 2014633,90794.734.73$24,435
Apr 20141982,76995.944.81$32,313
Mar 2014683,34995.895.06$23,456
Feb 20142352,67497.406.19$39,446
Jan 20145702,25990.404.86$62,508
Dec 2013872,04191.824.35$16,876
Nov 20131372,69888.853.74$22,258
Oct 20131621,14297.423.78$20,098
Sep 20132752,226104.113.72$36,906
Aug 20133962,640104.253.52$50,583
Jul 20134132,488102.523.72$51,591
Jun 20133172,50494.403.93$39,774
May 20133902,85194.834.15$48,813
Apr 20133322,66393.964.28$42,599
Mar 20133682,78293.623.91$45,338
Feb 20132241,92591.233.42$27,019
Jan 20133452,94491.603.42$41,670
Dec 20124913,69786.773.42$55,248
Nov 20124423,75986.953.62$52,058
Oct 20125085,70389.383.40$64,793
Sep 20124523,46794.672.92$52,909
Aug 20122291,94692.662.91$26,878
Jul 20124154,35085.133.02$48,469
Jun 20123944,01779.822.52$41,568
May 20124444,19091.612.49$51,101
Apr 20123863,188101.652.00$45,603
Mar 20125742,773105.052.22$66,461
Feb 20124532,459101.102.57$52,119
Jan 20124503,01998.092.73$52,395
Dec 20114472,21196.873.24$50,464
Nov 20115691,57695.723.31$59,683
Oct 20114812,58084.983.65$50,289
Sep 20114482,77383.623.99$48,514
Aug 20113844,28483.404.15$49,801
Jul 20113323,73494.144.52$48,122
Jun 20114073,15792.904.64$52,458
May 20112542,73798.134.40$36,981
Apr 20112061,090105.964.33$26,551
Mar 20111783,97896.364.06$33,292
Feb 2011842,55285.644.18$17,861
Jan 20111193,03786.504.59$24,230
Dec 20102244,02785.734.35$36,712
Nov 20103624,35880.843.80$45,804
Oct 20104825,21078.103.51$55,926
Sep 20104025,56472.633.98$51,339
Aug 20104674,35673.684.42$53,659
Jul 20104173,63672.554.74$47,475
Jun 20105343,36470.364.91$54,091
May 20107446671.124.24$7,236
Apr 20101551,10981.694.12$17,234
Mar 20101811,38278.394.39$20,254
Feb 20103222,17173.585.44$35,508
Jan 20105152,19074.365.96$51,357
Dec 20094562,12671.445.48$44,235
Nov 20091441,16874.593.75$15,123
Oct 20091801,15572.544.11$17,805
Sep 20095061,79065.543.06$38,649
Aug 200921799067.423.22$17,816
Jul 200920949061.133.46$14,474
Jun 200917998266.163.90$15,668
May 20093281,71954.743.93$24,703
Apr 20094272,44246.773.59$28,731
Mar 20093232,32642.144.06$23,052
Feb 20091271,50332.814.63$11,130
Jan 20091011,49635.865.37$11,657
Dec 20083642,66637.105.98$29,439
Nov 20082371,93755.496.86$26,440
Oct 20083413,35175.246.92$48,852
Sep 20083211,056101.767.88$40,983
Aug 20083202,665114.228.48$59,158
Jul 2008663,813131.0811.39$52,079
Jun 20081281,041131.3313.03$30,377
May 20081571,174123.1711.57$32,926
Apr 20083131,992110.3110.45$55,353
Mar 20083102,114101.909.66$52,019
Feb 20082892,21292.538.77$46,142
Jan 20083702,46090.388.21$53,627
Dec 20076152,65388.337.30$73,695
Nov 20072922,02391.677.29$41,519
Oct 20073402,00682.856.92$42,054
Sep 20074082,41875.846.24$46,041
Aug 20071921,40269.066.39$22,215
Jul 20072322,08070.906.39$29,736
Jun 20072053,01262.007.55$35,446
May 20072313,25658.747.85$39,116
Apr 20071753,34559.617.81$36,540
Mar 200716394556.927.30$16,178
Feb 20073081,46655.108.22$29,015
Jan 20071701,67450.306.73$19,812
Dec 20065322,82256.656.92$49,662
Nov 20065461,56954.207.62$41,545
Oct 20066261,11054.906.01$41,043
Sep 20065801,07260.085.04$40,246
Aug 200622859668.717.34$20,040
Jul 20065052,53769.376.34$51,123
Jun 20064332,91566.286.38$47,308
May 20065352,51866.016.42$51,494
Apr 20062641,20064.397.36$25,832
Mar 20062912,23456.707.08$32,323
Feb 20064722,15757.597.75$43,902
Jan 2006922960.598.93$2,591
Dec 2005742,16454.9413.42$33,096
Nov 2005812,16754.6910.59$27,375
Oct 20051752,23858.3413.80$41,084
Sep 20051872,51161.4512.08$41,822
Aug 20052472,51261.519.80$39,803
Jul 20059453,40855.697.84$79,358
Jun 20059913,65152.337.38$78,807
May 20051,1904,24445.226.65$82,039

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                   31 bbl  × $106.41 =     $3,299
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                   $3,299

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. 08/O/37604 is the state's own key, not one this site invented.