LULING UNIT #8

Operated by CASTILLO OIL COMPANY LLC (P-5 139634) in the SALT FLAT field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2985District 01Field 79905001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$229 k
Jan 1993 – May 2026
Value, last 12 filed months
$3 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 415 leases and 1,904 wells, and the rule below applies to all of them.

Discovered
1928-05-28
as the register files it
Field class
Oil and gas
the register's own label
Between wells
300 ft
minimum
From a lease line
150 ft
minimum

A drilling unit in this field needs at least 2 acres. The field rule took effect on 1952-08-04.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: 100 % % DELIVERABILITY SHOULD BE USED (DAMEKI NYERI).

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
OilDisposition4,495 bbl$202,589
Casinghead gasProduction6,321 Mcf$26,279
Total$228,868

275 Mcf of this lease's gas, across 45 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 29.6765, -97.6456. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

29.67651, -97.64559 · 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
no depth filed
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.

1 well

42-055043121

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 202652059.138.00$3,075
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 2025116062.363.54$7,234
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 202444075.632.06$3,328
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 202447073.023.30$3,432
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 202347072.852.39$3,424
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 2022260101.587.54$2,641
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 2022230108.885.08$2,504
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 202135066.024.22$2,311
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 202045037.091.99$1,669
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 201982059.012.30$4,839
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 201865061.443.40$3,994
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 201702647.933.21$84
Mar 201702446.772.98$72
Feb 201702350.452.95$68
Jan 201702549.413.42$85
Dec 201602748.763.72$101
Nov 201602842.492.64$74
Oct 201602746.193.09$83
Sep 2016312541.553.10$1,366
Aug 201602841.442.92$82
Jul 201602841.622.92$82
Jun 201602745.352.69$73
May 201602742.521.99$54
Apr 201602636.561.99$52
Mar 201602433.011.79$43
Feb 2016352426.472.06$976
Jan 201602727.352.36$64
Dec 201502032.362.00$40
Nov 201502438.792.17$52
Oct 201502543.552.43$61
Sep 201502542.992.76$69
Aug 2015162740.162.87$720
Jul 201503048.152.95$88
Jun 201503056.152.88$86
May 2015583155.212.96$3,294
Apr 201502749.822.71$73
Mar 201503242.892.93$94
Feb 201502744.662.98$80
Jan 201502643.433.10$81
Dec 201402754.693.59$97
Nov 2014282570.464.25$2,079
Oct 201402878.303.90$109
Sep 201402886.164.05$113
Aug 201402589.394.04$101
Jul 201401896.564.18$75
Jun 2014242298.164.74$2,460
May 201402594.734.73$118
Apr 201402395.944.81$111
Mar 201402895.895.06$142
Feb 2014922797.406.19$9,128
Jan 201403190.404.86$151
Dec 201302691.824.35$113
Nov 201302688.853.74$97
Oct 201302397.423.78$87
Sep 20134425104.113.72$4,674
Aug 2013029104.253.52$102
Jul 2013030102.523.72$112
Jun 201302894.403.93$110
May 201344094.834.15$4,173
Apr 201302993.964.28$124
Mar 201302993.623.91$113
Feb 201302591.233.42$86
Jan 2013452591.603.42$4,208
Dec 201202486.773.42$82
Nov 201202486.953.62$87
Oct 201202589.383.40$85
Sep 201202494.672.92$70
Aug 2012442692.662.91$4,153
Jul 201202385.133.02$69
Jun 201202579.822.52$63
May 201202991.612.49$72
Apr 2012030101.652.00$60
Mar 20124425105.052.22$4,678
Feb 2012020101.102.57$51
Jan 201202298.092.73$60
Dec 201101796.873.24$55
Nov 2011451595.723.31$4,357
Oct 201101584.983.65$55
Sep 201101983.623.99$76
Aug 201102383.404.15$95
Jul 2011442294.144.52$4,242
Jun 201101792.904.64$79
May 201101798.134.40$75
Apr 2011016105.964.33$69
Mar 2011441696.364.06$4,305
Feb 20110785.644.18$29
Jan 201101686.504.59$73
Dec 201001585.734.35$65
Nov 2010451680.843.80$3,699
Oct 201002678.103.51$91
Sep 201002472.633.98$96
Aug 201044073.684.42$3,242
Jul 201002572.554.74$118
Jun 201003170.364.91$152
May 201003271.124.24$136
Apr 201003081.694.12$124
Mar 201045078.394.39$3,528
Feb 201003073.585.44$163
Jan 201003274.365.96$191
Dec 200903271.445.48$175
Nov 2009452974.593.75$3,465
Oct 200903572.544.11$144
Sep 200903165.543.06$95
Aug 200901167.423.22$35
Jul 2009442761.133.46$2,783
Jun 200901766.163.90$66
May 200901854.743.93$71
Apr 200901646.773.59$57
Mar 2009451542.144.06$1,957
Feb 200901532.814.63$70
Jan 200901535.865.37$81
Dec 20080937.105.98$54
Nov 2008453355.496.86$2,723
Oct 200803475.246.92$235
Sep 2008020101.767.88$158
Aug 20084424114.228.48$5,229
Jul 2008030131.0811.39$342
Jun 2008031131.3313.03$404
May 2008032123.1711.57$370
Apr 20084529110.3110.45$5,267
Mar 2008029101.909.66$280
Feb 200803292.538.77$281
Jan 2008483390.388.21$4,609
Dec 200703288.337.30$234
Nov 200702991.677.29$211
Oct 200702982.856.92$201
Sep 2007442875.846.24$3,512
Aug 200703469.066.39$217
Jul 200703270.906.39$204
Jun 200702862.007.55$211
May 200702958.747.85$228
Apr 2007453459.617.81$2,948
Mar 200703456.927.30$248
Feb 200703855.108.22$312
Jan 20070450.306.73$27
Dec 200645056.656.92$2,549
Nov 200604954.207.62$373
Oct 200603754.906.01$223
Sep 2006444460.085.04$2,865
Aug 200603668.717.34$264
Jul 20060069.376.34$0
Jun 200644066.286.38$2,916
May 200603066.016.42$193
Apr 200602664.397.36$191
Mar 2006452656.707.08$2,736
Feb 20060657.597.75$47
Jan 200601360.598.93$116
Dec 200501654.9413.42$215
Nov 2005451654.6910.59$2,630
Oct 200501458.3413.80$193
Sep 200501061.4512.08$121
Aug 2005451061.519.80$2,866
Jul 200501055.697.84$78
Jun 200501152.337.38$81
May 200501345.226.65$86
Apr 200548849.207.36$2,420
Mar 200501350.377.15$93
Feb 20050045.226.31$0
Jan 2005311243.166.32$1,414
Dec 200401339.866.75$88
Nov 200401645.286.33$101
Oct 200401349.706.52$85
Sep 2004451343.245.28$2,014
Aug 200401442.375.55$78
Jul 200401738.286.08$103
Jun 2004471536.106.43$1,793
May 200401637.486.49$104
Apr 200401234.475.86$70
Mar 2004411634.365.53$1,497
Feb 200401532.455.51$83
Jan 200401532.036.30$94
Dec 2003381730.266.30$1,257
Nov 200301228.804.60$55
Oct 20030728.174.76$33
Sep 200361826.314.75$1,643
Aug 200301329.765.13$67
Jul 200301329.415.17$67
Jun 2003461128.565.98$1,380
May 200301526.595.97$90
Apr 200301226.675.41$65
Mar 2003601531.146.10$1,960
Feb 20030833.487.93$63
Jan 200301330.315.58$73
Dec 2002541526.914.85$1,526
Nov 200201324.664.14$54
Oct 200201326.464.23$55
Sep 2002401127.443.64$1,138
Aug 200201425.963.16$44
Jul 200201524.583.06$46
Jun 2002371323.733.34$921
May 200201424.663.58$50
Apr 200201323.653.51$46
Mar 2002411322.003.10$942
Feb 20020618.222.38$14
Jan 20020017.172.38$0
Dec 200142516.932.36$723
Nov 20010518.072.41$12
Oct 200146819.782.53$930
Sep 200101124.262.25$25
Aug 200101224.873.05$37
Jul 2001531423.933.20$1,313
Jun 200101424.563.82$54
May 200101925.524.31$82
Apr 2001412324.685.34$1,135
Mar 200104624.545.38$247
Feb 2001424327.755.77$1,413
Jan 200104627.478.40$386
Dec 200062526.889.12$1,712
Nov 20000132.215.66$6
Oct 20000131.235.15$5
Sep 20000831.875.19$41
Aug 2000011629.644.54$527
Jul 2000708628.534.09$2,349
Jun 20003910229.304.40$1,591
May 200005027.263.68$184
Apr 200009924.513.12$308
Mar 200005528.422.86$157
Feb 200001627.622.73$44
Jan 200004225.272.48$104
Dec 1999645324.282.42$1,682
Nov 199904723.192.43$114
Oct 199907220.982.80$202
Sep 199908621.752.62$225
Aug 1999010319.262.88$296
Jul 1999276617.892.37$640
Jun 1999010915.942.36$257
May 1999343215.792.32$611
Apr 199902515.102.21$55
Mar 1999602712.471.84$798
Feb 19990249.981.82$44
Jan 199902410.381.90$46
Dec 19980249.201.77$43
Nov 199802410.892.19$52
Oct 1998222512.421.97$322
Sep 199802412.592.08$50
Aug 1998251611.301.91$313
Jul 199801711.742.24$38
Jun 1998302711.242.24$398
May 199803512.622.21$77
Apr 1998303013.042.51$466
Mar 199804612.802.31$106
Feb 1998391713.952.30$583
Jan 199804114.702.15$88
Dec 1997344516.322.41$663
Nov 199704118.193.09$127
Oct 1997293619.253.15$672
Sep 19970717.742.95$21
Aug 199721517.862.55$388
Jul 199701517.582.25$34
Jun 199701817.242.26$41
May 1997413118.972.31$849
Apr 199703617.882.08$75
Mar 1997342718.951.94$697
Feb 199702420.492.21$53
Jan 1997313323.483.54$845
Dec 199602423.32$0
Nov 1996232721.97$505
Oct 199604023.31$0
Sep 1996294122.22$644
Aug 199605520.26$0
Jul 1996294919.55$567
Jun 199633118.73$618
May 19960019.43$0
Apr 199615121.51$323
Mar 19960119.38$0
Feb 1996115116.98$1,953
Jan 19960017.07$0
Dec 19950117.19$0
Nov 19950116.00$0
Oct 19950115.43$0
Sep 19950116.18$0
Aug 19950115.92$0
Jul 1995125115.24$1,905
Jun 19950116.41$0
May 19950117.56$0
Apr 19950117.73$0
Mar 19950016.44$0
Feb 19950116.58$0
Jan 19950115.92$0
Dec 19940115.03$0
Nov 1994135115.90$2,147
Oct 19940115.58$0
Sep 19940115.29$0
Aug 19940116.13$0
Jul 19940117.56$0
Jun 19940117.09$0
May 19940115.88$0
Apr 19940114.14$0
Mar 19940112.46$0
Feb 1994124112.50$1,550
Jan 19940112.66$0
Dec 19930112.33$0
Nov 19930114.49$0
Oct 1993145115.85$2,298
Sep 19930115.03$0
Aug 19930115.66$0
Jul 19930115.46$0
Jun 19930116.79$0
May 199349117.68$866
Apr 19930118.05$0
Mar 19930118.14$0
Feb 19930117.90$0
Jan 1993141116.93$2,387

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.

Jan 2026 — as filed, then multipliedworked
Oil                   52 bbl  × $ 59.13 =     $3,075
Casinghead gas         0 Mcf  × $  8.00 =         $0

────────────────────────────────────────────────────
Month total                                   $3,075

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. 01/O/2985 is the state's own key, not one this site invented.