CLARK, L. C. EST.

Operated by ENDEAVOR ENERGY RESOURCES L.P. (P-5 251726) in the SAINT LAWRENCE (STRAWN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 35918District 08Field 79689700OilCasinghead gasSaveExport
Value, all time
$1.1 M
Aug 1998 – Sep 2016
Value, last 12 filed months
$0
at the published price for each month
Months reported
218
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 55 leases and 65 wells, and the rule below applies to all of them.

Discovered
1983-08-10
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 1991-03-01.

The Commission's schedule remark for this field reads: OPERATOR REQUEST (COSTILLA PETROLEUM CORP.)

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
OilDisposition11,362 bbl$422,193
Casinghead gasProduction177,178 Mcf$689,542
Total$1,111,735

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 31.7519, -101.6456. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.75188, -101.64562 · 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
100.0%
1 of 1 wells
With a plug date
100.0%
1 of 1 wells
Median depth
10,969 ft
1 wells filed one
Completion to plug
18.0 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
1100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1100.0%
NeitherNo plug date, and not on the schedule.
00.0%

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 10,969 ft.

Completions filed
Aug 1998
1 of 1 wells
Plug dates filed
Aug 2016
1 of 1 wells

Last completion to plug: a median of 18.0 years across the 1 well that filed both dates, with the middle half between 18.0 years and 18.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-17310035110,969 ftAug 1998Aug 2016Yes

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 (218)

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

218 months

Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 201388097.423.78$8,573
Sep 201300104.113.72$0
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 2012180098.092.73$17,656
Dec 2011020396.873.24$658
Nov 201101595.723.31$50
Oct 2011010584.983.65$383
Sep 2011021183.623.99$841
Aug 201109683.404.15$398
Jul 2011015094.144.52$678
Jun 2011025192.904.64$1,165
May 201117929198.134.40$18,847
Apr 20110253105.964.33$1,096
Mar 2011025596.364.06$1,035
Feb 2011021885.644.18$911
Jan 201118830686.504.59$17,666
Dec 20100085.734.35$0
Nov 2010026480.843.80$1,002
Oct 2010034778.103.51$1,218
Sep 2010046672.633.98$1,854
Aug 201017329973.684.42$14,068
Jul 2010068572.554.74$3,245
Jun 201017487170.364.91$16,520
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 2009027671.445.48$1,514
Nov 2009064374.593.75$2,412
Oct 20091791,05772.544.11$17,329
Sep 2009018165.543.06$555
Aug 20090767.423.22$23
Jul 200901161.133.46$38
Jun 200901166.163.90$43
May 200902954.743.93$114
Apr 200904346.773.59$154
Mar 2009011742.144.06$475
Feb 2009028632.814.63$1,325
Jan 2009045735.865.37$2,455
Dec 200817551337.105.98$9,559
Nov 2008159155.496.86$4,110
Oct 2008063375.246.92$4,382
Sep 20080625101.767.88$4,923
Aug 20080655114.228.48$5,556
Jul 2008174663131.0811.39$30,359
Jun 20080644131.3313.03$8,393
May 20080664123.1711.57$7,685
Apr 20081639110.3110.45$6,791
Mar 2008179648101.909.66$24,502
Feb 2008160892.538.77$5,425
Jan 2008265990.388.21$5,588
Dec 200716971588.337.30$20,149
Nov 2007188291.677.29$6,523
Oct 20071811,42582.856.92$24,860
Sep 200717953175.846.24$16,891
Aug 200702169.066.39$134
Jul 200701170.906.39$70
Jun 200701262.007.55$91
May 200701058.747.85$78
Apr 200709059.617.81$702
Mar 2007038856.927.30$2,833
Feb 200718135655.108.22$12,898
Jan 2007138550.306.73$2,640
Dec 2006040956.656.92$2,830
Nov 2006041854.207.62$3,184
Oct 2006045654.906.01$2,742
Sep 200618545860.085.04$13,422
Aug 2006050168.717.34$3,677
Jul 2006049869.376.34$3,159
Jun 2006052266.286.38$3,332
May 200617352966.016.42$14,819
Apr 2006070464.397.36$5,182
Mar 200617290756.707.08$16,177
Feb 200617593857.597.75$17,349
Jan 200601,57660.598.93$14,079
Dec 200517572554.9413.42$19,341
Nov 20050754.6910.59$74
Oct 20050458.3413.80$55
Sep 200501761.4512.08$205
Aug 200502061.519.80$196
Jul 20050855.697.84$63
Jun 200501552.337.38$111
May 2005029745.226.65$1,975
Apr 2005044249.207.36$3,253
Mar 200518331650.377.15$11,479
Feb 2005042845.226.31$2,702
Jan 2005046243.166.32$2,921
Dec 2004057139.866.75$3,855
Nov 2004034045.286.33$2,152
Oct 2004052849.706.52$3,440
Sep 200417658243.245.28$10,685
Aug 2004044742.375.55$2,481
Jul 2004056538.286.08$3,438
Jun 2004060536.106.43$3,892
May 200418666237.486.49$11,271
Apr 2004060134.475.86$3,521
Mar 2004070034.365.53$3,871
Feb 2004066232.455.51$3,647
Jan 200417973232.036.30$10,345
Dec 2003073930.266.30$4,657
Nov 2003075628.804.60$3,474
Oct 200318282128.174.76$9,035
Sep 2003081426.314.75$3,866
Aug 2003087929.765.13$4,509
Jul 200317684729.415.17$9,556
Jun 2003086028.565.98$5,145
May 2003092726.595.97$5,537
Apr 2003090826.675.41$4,910
Mar 2003096531.146.10$5,883
Feb 2003086933.487.93$6,888
Jan 200318895730.315.58$11,040
Dec 2002097426.914.85$4,728
Nov 200217280324.664.14$7,564
Oct 200201,09726.464.23$4,639
Sep 200201,06527.443.64$3,871
Aug 20021811,22825.963.16$8,584
Jul 200201,11524.583.06$3,414
Jun 2002096223.733.34$3,211
May 2002099924.663.58$3,580
Apr 20021751,24523.653.51$8,512
Mar 200201,28922.003.10$3,999
Feb 20021811,16518.222.38$6,065
Jan 200221,37117.172.38$3,291
Dec 20011881,47616.932.36$6,673
Nov 200123,24618.072.41$7,844
Oct 200107019.782.53$177
Sep 20010024.262.25$0
Aug 200102124.873.05$64
Jul 200118983423.933.20$7,189
Jun 200101,29624.563.82$4,956
May 200101,40025.524.31$6,030
Apr 20011721,35624.685.34$11,480
Mar 20011861,54824.545.38$12,887
Feb 200111,34427.755.77$7,779
Jan 20011971,38927.478.40$17,077
Dec 200001,38226.889.12$12,607
Nov 200001,52632.215.66$8,634
Oct 20001831,61531.235.15$14,025
Sep 200001,61531.875.19$8,376
Aug 20001722,39429.644.54$15,969
Jul 200001,81728.534.09$7,431
Jun 20001751,87029.304.40$13,350
May 20001862,09727.263.68$12,787
Apr 200002,15824.513.12$6,724
Mar 200002,31628.422.86$6,623
Feb 20001882,37727.622.73$11,673
Jan 20001932,29625.272.48$10,572
Dec 199902,46224.282.42$5,967
Nov 19991742,43023.192.43$9,950
Oct 199902,74520.982.80$7,696
Sep 19991751,81121.752.62$8,549
Aug 19991843,01419.262.88$12,211
Jul 19991773,18817.892.37$10,730
Jun 19991833,21815.942.36$10,518
May 199903,31415.792.32$7,692
Apr 19995463,51515.102.21$16,006
Mar 19991843,89012.471.84$9,446
Feb 19991883,9319.981.82$9,022
Jan 19993744,28410.381.90$12,022
Dec 19981885,0519.201.77$10,687
Nov 19981816,13410.892.19$15,378
Oct 19985419,07612.421.97$24,592
Sep 19983487,18412.592.08$19,343
Aug 199862012,40911.301.91$30,674

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.

Oct 2013 — as filed, then multipliedworked
Oil                   88 bbl  × $ 97.42 =     $8,573
Casinghead gas         0 Mcf  × $  3.78 =         $0

────────────────────────────────────────────────────
Month total                                   $8,573

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/35918 is the state's own key, not one this site invented.