HULL-SILK 4300' UNIT

Operated by BLACKFLAT OIL COMPANY LLC (P-5 101595) in the HULL-SILK-SIKES field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 11693District 09Field 43431001OilCasinghead gasSaveExport
Value, all time
$2.1 M
Jan 1993 – May 2026
Value, last 12 filed months
$7 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 81 leases and 403 wells, and the rule below applies to all of them.

Discovered
1939-03-08
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres.

The Commission's schedule remark for this field reads: HULL-SILK-SIKES FIELD DESIGNATED AS 4300 RESER. RRC LTR 1/23/73

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
OilDisposition85,007 bbl$2,094,815
Casinghead gasProduction230 Mcf$27
Total$2,094,841

218 Mcf of this lease's gas, across 36 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 (83)

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 33.7747, -98.6560. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.5 miles. 1 well has no surveyed location and is left out of it.

33.77611, -98.65548 · centre of 82 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
68.7%
57 of 83 wells
With a plug date
45.8%
38 of 83 wells
Median depth
4,390 ft
49 wells filed one
Completion to plug
60.0 years
median over 23 wells

What the state filed about each well

On the RRC proration schedule
5768.7%
A plug date is filed
3845.8%
BothOn the schedule and plugged. Neither fact cancels the other.
3845.8%
NeitherNo plug date, and not on the schedule.
2631.3%

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

Total depth in feet, 49 of 83 wells. Median 4,390 ft, with the middle half between 4,363 and 4,426 ft; the shallowest is 1,001 ft and the deepest 5,240 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 34 of 83 wells, Jul 1939 – May 2026. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jul 1939 – May 2026
34 of 83 wells; 49 filed none
Plug dates filed
May 1974 – Jan 2026
38 of 83 wells; 45 filed none

Last completion to plug: a median of 60.0 years across the 23 wells that filed both dates, with the middle half between 30.1 years and 66.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

83 wells

42-00903057137W4,454 ftMay 1974Yes
42-0090356161W4,382 ftFeb 2015Yes
42-009332741001,001 ftJun 1979Yes
42-0098488584,354 ftSep 2025Yes
42-009848869WYes
42-00984896294,347 ftOct 2025Yes
42-00984898314,410 ftSep 2025Yes
42-0098490237WYes
42-0098490339WYes
42-00984910474,380 ftOct 2025Yes
42-0098492274W4,363 ftJan 2015Yes
42-0098492579Yes
42-00984928844,371 ftJan 2026Yes
42-00984929854,428 ftFeb 2015Yes
42-0098493094W4,372 ftJun 1974Yes
42-0098493197WYes
42-0098493298Yes
42-00984935109Yes
42-00984936113Yes
42-00984937115Yes
42-00984938118Yes
42-00984939119Yes
42-00984940120Yes
42-00984943127Yes
42-009849441284,404 ftSep 2025Yes
42-00984948150WYes
42-00984949158Yes
42-00984951160Yes
42-00984952168Yes
42-00984953169WYes
42-00984954170W4,364 ftJun 1974Yes
42-00987938157W4,382 ftMay 1974Yes
42-0090159945
42-0090160022
42-0093211881
42-00932967126
42-009848832WS
42-0098489120
42-0098490136
42-0098490946
42-0098491149
42-0098491255
42-0098491356W
42-0098491459
42-0098492376
42-0098492680
42-0098492782
42-00984946130
42-0094312776M5,156 ftMay 2026
42-0098490440W4,322 ftNov 2025
42-0094312562M5,240 ftJul 2018Yes
42-00903231111A4,630 ftJan 1995
42-00901570134,399 ftFeb 1994
42-0090366427W4,388 ftFeb 1992Jul 2017Yes
42-0098491864W4,503 ftJul 1988Mar 2000Yes
42-0090159163W4,468 ftApr 1988Jul 2017Yes
42-00901601434,460 ftApr 1988Jul 2017Yes
42-0090158212W4,340 ftSep 1987Sep 2011Yes
42-0090156914W4,361 ftFeb 1987Dec 2017Yes
42-0098490642W4,375 ftJul 1984Mar 2000Yes
42-0093585499A5,196 ftJun 1982
42-009013661674,390 ftApr 1978Dec 2017Yes
42-00901327704,354 ftDec 1976
42-009849471364,437 ftMar 1974May 2013Yes
42-009849501594,419 ftMar 1974Jul 2017Yes
42-009142571WS3,150 ftOct 1960
42-0098491560W4,703 ftFeb 1942
42-009848845W4,340 ftJan 1941Sep 2025Yes
42-0098491965W4,387 ftAug 1940Jul 2013Yes
42-00984945129W4,417 ftMay 1940Jul 2013Yes
42-0098492066W4,387 ftApr 1940Apr 2000Yes
42-00984934107W4,415 ftMar 1940Mar 2000Yes
42-0098490034W4,400 ftMar 1940Mar 2000Yes
42-009849411234,386 ftJan 1940Mar 2000Yes
42-00984924784,395 ftJan 1940Mar 2000Yes
42-009849421254,930 ftJan 1940Mar 2000Yes
42-00983489244,342 ft1940Jan 2015Yes
42-0098489932W4,404 ftDec 1939Apr 2000Yes
42-0098489221W4,399 ftNov 1939Sep 2025Yes
42-0098489528W4,363 ftNov 1939Sep 2025Yes
42-0098489730W4,426 ftOct 1939Sep 2025Yes
42-00984890184,270 ftAug 1939
42-0098490541W4,391 ftJul 1939

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 202677089.753.15$6,911
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 2022169085.005.65$14,365
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 2021150066.024.22$9,903
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 2021164063.483.02$10,411
Apr 2021163060.362.76$9,839
Mar 2021330061.302.72$20,229
Feb 20210057.805.55$0
Jan 2021164050.412.81$8,267
Dec 20200044.642.68$0
Nov 2020166038.772.71$6,436
Oct 20200036.972.48$0
Sep 2020162037.091.99$6,009
Aug 2020165039.982.39$6,597
Jul 2020161038.371.83$6,178
Jun 2020165034.901.69$5,759
May 20200016.921.81$0
Apr 2020158014.751.80$2,331
Mar 20200030.341.86$0
Feb 2020162049.881.98$8,081
Jan 2020156057.252.09$8,931
Dec 2019158059.012.30$9,324
Nov 2019162055.302.75$8,959
Oct 2019166053.472.42$8,876
Sep 2019155055.052.66$8,533
Aug 20190053.112.30$0
Jul 2019159056.272.46$8,947
Jun 2019161052.782.49$8,498
May 20190058.482.74$0
Apr 2019164062.632.75$10,271
Mar 2019325056.803.06$18,460
Feb 20190050.852.79$0
Jan 2019158046.033.23$7,273
Dec 2018170046.594.19$7,920
Nov 20183052.934.24$159
Oct 2018155061.443.40$9,523
Sep 2018156059.543.11$9,288
Aug 2018155059.403.07$9,207
Jul 2018463065.142.93$30,160
Jun 2018311060.183.08$18,716
May 2018451065.382.90$29,486
Apr 2018152063.842.90$9,704
Mar 2018307061.222.79$18,795
Feb 2018248061.782.77$15,321
Jan 2018320062.874.01$20,118
Dec 2017313057.272.92$17,926
Nov 2017322055.423.12$17,845
Oct 2017311049.292.98$15,329
Sep 2017158047.523.09$7,508
Aug 2017158045.373.00$7,168
Jul 2017303043.873.09$13,293
Jun 2017154042.493.09$6,543
May 2017151045.373.26$6,851
Apr 2017150047.933.21$7,190
Mar 2017151046.772.98$7,062
Feb 2017154050.452.95$7,769
Jan 20170049.413.42$0
Dec 2016148048.763.72$7,216
Nov 2016151042.492.64$6,416
Oct 2016144046.193.09$6,651
Sep 2016150041.553.10$6,233
Aug 20160041.442.92$0
Jul 2016145041.622.92$6,035
Jun 20160045.352.69$0
May 2016148042.521.99$6,293
Apr 2016149036.561.99$5,447
Mar 2016156033.011.79$5,150
Feb 2016150026.472.06$3,971
Jan 2016301027.352.36$8,232
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 2015160043.552.43$6,968
Sep 20150042.992.76$0
Aug 2015151040.162.87$6,064
Jul 20150048.152.95$0
Jun 2015160056.152.88$8,984
May 20150055.212.96$0
Apr 2015156049.822.71$7,772
Mar 20150042.892.93$0
Feb 2015159044.662.98$7,101
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 2014154070.464.25$10,851
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 2014155089.394.04$13,855
Jul 20140096.564.18$0
Jun 2014166098.164.74$16,295
May 20140094.734.73$0
Apr 2014152095.944.81$14,583
Mar 20140095.895.06$0
Feb 2014152097.406.19$14,805
Jan 20140090.404.86$0
Dec 2013155091.824.35$14,232
Nov 20130088.853.74$0
Oct 2013152097.423.78$14,808
Sep 20131550104.113.72$16,137
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 2003206030.266.30$6,234
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 2003343029.415.17$10,088
Jun 2003174028.565.98$4,969
May 20030026.595.97$0
Apr 2003614026.675.41$16,375
Mar 2003606031.146.10$18,871
Feb 2003346033.487.93$11,584
Jan 2003353030.315.58$10,699
Dec 2002514026.914.85$13,832
Nov 2002173024.664.14$4,266
Oct 2002532026.464.23$14,077
Sep 2002509027.443.64$13,967
Aug 2002340025.963.16$8,826
Jul 2002336024.583.06$8,259
Jun 2002167023.733.34$3,963
May 2002689024.663.58$16,991
Apr 2002345023.653.51$8,159
Mar 2002506022.003.10$11,132
Feb 2002494018.222.38$9,001
Jan 2002518017.172.38$8,894
Dec 2001334016.932.36$5,655
Nov 2001121018.072.41$2,186
Oct 2001876019.782.53$17,327
Sep 2001352024.262.25$8,540
Aug 2001527024.873.05$13,106
Jul 2001521023.933.20$12,468
Jun 2001530024.563.82$13,017
May 2001515025.524.31$13,143
Apr 2001351024.685.34$8,663
Mar 2001505024.545.38$12,393
Feb 2001359027.755.77$9,962
Jan 2001498027.478.40$13,680
Dec 2000542026.889.12$14,569
Nov 2000718032.215.66$23,127
Oct 2000661031.235.15$20,643
Sep 20000031.875.19$0
Aug 2000518029.644.54$15,354
Jul 2000501028.534.09$14,294
Jun 2000451029.304.40$13,214
May 2000339027.263.68$9,241
Apr 2000517024.513.12$12,672
Mar 2000496028.422.86$14,096
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
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 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 1998102110.892.19$1,113
Oct 1998157112.421.97$1,952
Sep 1998396112.592.08$4,988
Aug 1998334111.301.91$3,776
Jul 1998320111.742.24$3,759
Jun 19980111.242.24$2
May 1998330112.622.21$4,167
Apr 19980113.042.51$3
Mar 1998359112.802.31$4,598
Feb 1998117113.952.30$1,634
Jan 1998169114.702.15$2,486
Dec 1997357116.322.41$5,829
Nov 1997678018.193.09$12,333
Oct 1997652019.253.15$12,551
Sep 1997750017.742.95$13,305
Aug 1997488017.862.55$8,716
Jul 1997166017.582.25$2,918
Jun 1997619017.242.26$10,672
May 1997181018.972.31$3,434
Apr 1997454017.882.08$8,118
Mar 1997309018.951.94$5,856
Feb 1997541020.492.21$11,085
Jan 1997446023.483.54$10,472
Dec 19961,301023.32$30,339
Nov 19960021.97$0
Oct 1996684023.31$15,944
Sep 1996884022.22$19,642
Aug 1996621020.26$12,581
Jul 1996611019.55$11,945
Jun 1996212018.73$3,971
May 1996677019.43$13,154
Apr 1996689021.51$14,820
Mar 1996856019.38$16,589
Feb 1996565016.98$9,594
Jan 1996701017.07$11,966
Dec 1995523417.19$8,990
Nov 1995845416.00$13,520
Oct 1995855415.43$13,193
Sep 1995857416.18$13,866
Aug 1995912415.92$14,519
Jul 1995857415.24$13,061
Jun 1995855416.41$14,031
May 19951,380417.56$24,233
Apr 19951,217417.73$21,577
Mar 19951,054416.44$17,328
Feb 1995919316.58$15,237
Jan 19951,000415.92$15,920
Dec 19941,243415.03$18,682
Nov 1994961415.90$15,280
Oct 1994942415.58$14,676
Sep 19941,139515.29$17,415
Aug 19941,181616.13$19,050
Jul 19941,153717.56$20,247
Jun 19941,057717.09$18,064
May 19941,577715.88$25,043
Apr 1994852714.14$12,047
Mar 19941,199712.46$14,940
Feb 19941,148712.50$14,350
Jan 1994986712.66$12,483
Dec 19931,335712.33$16,461
Nov 19931,036814.49$15,012
Oct 19931,140815.85$18,069
Sep 19931,341815.03$20,155
Aug 1993983815.66$15,394
Jul 19931,022815.46$15,800
Jun 1993995816.79$16,706
May 19931,008817.68$17,821
Apr 19931,160918.05$20,938
Mar 19931,102918.14$19,990
Feb 19931,175917.90$21,033
Jan 19931,270916.93$21,501

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.

Mar 2026 — as filed, then multipliedworked
Oil                   77 bbl  × $ 89.75 =     $6,911
Casinghead gas         0 Mcf  × $  3.15 =         $0

────────────────────────────────────────────────────
Month total                                   $6,911

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/11693 is the state's own key, not one this site invented.