CERF, JAMES

Operated by THURSTON TEXAS OPERATING CO LLC (P-5 858843) in the CORSICANA (SHALLOW) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2485District 05Field 20823500OilCasinghead gasSaveExport
Value, all time
$1.5 M
Jan 1993 – Jun 2016
Value, last 12 filed months
$5 k
at the published price for each month
Months reported
282
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 594 leases and 5,880 wells, and the rule below applies to all of them.

Discovered
1896-01-01
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 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 2007-03-29.

The Commission's schedule remark for this field reads: ALLOCATION FORMULA EFFECTIVE 08/01/88.

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
OilDisposition35,054 bbl$1,529,512
Casinghead gasProduction21 Mcf$0
Total$1,529,512

21 Mcf of this lease's gas, across 21 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 (9)

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 32.0311, -96.3768. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

32.03195, -96.37637 · 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
22.2%
2 of 9 wells
With a plug date
22.2%
2 of 9 wells
Median depth
1,332 ft
9 wells filed one
Completion to plug
35.7 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
222.2%
A plug date is filed
222.2%
BothOn the schedule and plugged. Neither fact cancels the other.
222.2%
NeitherNo plug date, and not on the schedule.
777.8%

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, 9 of 9 wells. Median 1,332 ft, with the middle half between 1,300 and 2,466 ft; the shallowest is 1,197 ft and the deepest 2,937 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, 8 of 9 wells, Aug 1982 – Apr 2002. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Aug 1982 – Apr 2002
8 of 9 wells; 1 filed none
Plug dates filed
Mar 2018 – Mar 2026
2 of 9 wells; 7 filed none

Last completion to plug: a median of 35.7 years across the 2 wells that filed both dates, with the middle half between 33.7 years and 37.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

9 wells

42-349346322A2,140 ft
42-349346311A2,514 ftApr 2002
42-3498321471,300 ftSep 1986
42-3493282821,332 ftJul 1986Mar 2018Yes
42-3498305062,937 ftJul 1986Mar 2026Yes
42-3493384551,275 ftJan 1986
42-3493374442,466 ftNov 1984
42-3493282931,197 ftAug 1983
42-3493279211,322 ftAug 1982

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 (282)

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

282 months

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 2015106043.552.43$4,616
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 2015156049.822.71$7,772
Mar 20150042.892.93$0
Feb 2015159044.662.98$7,101
Jan 20150043.433.10$0
Dec 2014158054.693.59$8,641
Nov 20140070.464.25$0
Oct 2014159078.303.90$12,450
Sep 2014165086.164.05$14,216
Aug 2014164089.394.04$14,660
Jul 20140096.564.18$0
Jun 2014162098.164.74$15,902
May 2014152094.734.73$14,399
Apr 2014166095.944.81$15,926
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 2014161090.404.86$14,554
Dec 20130091.824.35$0
Nov 2013164088.853.74$14,571
Oct 20130097.423.78$0
Sep 20131680104.113.72$17,490
Aug 201300104.253.52$0
Jul 20131580102.523.72$16,198
Jun 2013174094.403.93$16,426
May 2013167094.834.15$15,837
Apr 20130093.964.28$0
Mar 2013163093.623.91$15,260
Feb 20130091.233.42$0
Jan 2013166091.603.42$15,206
Dec 20120086.773.42$0
Nov 2012160086.953.62$13,912
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 2012165092.662.91$15,289
Jul 20120085.133.02$0
Jun 2012158079.822.52$12,612
May 2012159091.612.49$14,566
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 201157084.983.65$4,844
Sep 2011175083.623.99$14,634
Aug 2011176083.404.15$14,678
Jul 20110094.144.52$0
Jun 2011174092.904.64$16,165
May 20110098.134.40$0
Apr 20111780105.964.33$18,861
Mar 2011179096.364.06$17,248
Feb 20110085.644.18$0
Jan 2011180086.504.59$15,570
Dec 20100085.734.35$0
Nov 2010178080.843.80$14,390
Oct 20100078.103.51$0
Sep 2010171072.633.98$12,420
Aug 2010178073.684.42$13,115
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 20082040123.1711.57$25,127
Apr 20081820110.3110.45$20,076
Mar 20081670101.909.66$17,017
Feb 2008167092.538.77$15,453
Jan 2008164090.388.21$14,822
Dec 20070088.337.30$0
Nov 2007335091.677.29$30,709
Oct 20070082.856.92$0
Sep 2007167075.846.24$12,665
Aug 2007169069.066.39$11,671
Jul 2007163070.906.39$11,557
Jun 2007172062.007.55$10,664
May 2007347058.747.85$20,383
Apr 2007168059.617.81$10,014
Mar 2007179056.927.30$10,189
Feb 2007166055.108.22$9,147
Jan 2007175050.306.73$8,803
Dec 2006161056.656.92$9,121
Nov 2006177054.207.62$9,593
Oct 2006337054.906.01$18,501
Sep 2006293060.085.04$17,603
Aug 2006184068.717.34$12,643
Jul 2006354069.376.34$24,557
Jun 2006363066.286.38$24,060
May 2006367066.016.42$24,226
Apr 2006169064.397.36$10,882
Mar 2006711056.707.08$40,314
Feb 2006463057.597.75$26,664
Jan 2006180060.598.93$10,906
Dec 2005360054.9413.42$19,778
Nov 200596054.6910.59$5,250
Oct 2005192058.3413.80$11,201
Sep 2005368061.4512.08$22,614
Aug 2005176061.519.80$10,826
Jul 20050055.697.84$0
Jun 2005183052.337.38$9,576
May 2005368045.226.65$16,641
Apr 2005182049.207.36$8,954
Mar 2005192050.377.15$9,671
Feb 2005179045.226.31$8,094
Jan 2005188043.166.32$8,114
Dec 2004189039.866.75$7,534
Nov 2004188045.286.33$8,513
Oct 2004178049.706.52$8,847
Sep 2004183043.245.28$7,913
Aug 2004183042.375.55$7,754
Jul 2004361038.286.08$13,819
Jun 2004182036.106.43$6,570
May 2004184037.486.49$6,896
Apr 2004181034.475.86$6,239
Mar 2004374034.365.53$12,851
Feb 2004191032.455.51$6,198
Jan 2004184032.036.30$5,894
Dec 2003185030.266.30$5,598
Nov 2003384028.804.60$11,059
Oct 2003178028.174.76$5,014
Sep 2003368026.314.75$9,682
Aug 2003357029.765.13$10,624
Jul 2003367029.415.17$10,793
Jun 20030028.565.98$0
May 2003376026.595.97$9,998
Apr 2003370026.675.41$9,868
Mar 2003194031.146.10$6,041
Feb 2003367033.487.93$12,287
Jan 2003378030.315.58$11,457
Dec 2002560026.914.85$15,070
Nov 2002542024.664.14$13,366
Oct 2002747026.464.23$19,766
Sep 2002361027.443.64$9,906
Aug 2002364025.963.16$9,449
Jul 2002704024.583.06$17,304
Jun 2002361023.733.34$8,567
May 20020024.663.58$0
Apr 2002178023.653.51$4,210
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 20010016.932.36$0
Nov 2001183018.072.41$3,307
Oct 2001182019.782.53$3,600
Sep 20010024.262.25$0
Aug 2001186024.873.05$4,626
Jul 2001184023.933.20$4,403
Jun 20010024.563.82$0
May 200193025.524.31$2,373
Apr 20010024.685.34$0
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 2001189027.478.40$5,192
Dec 20000026.889.12$0
Nov 2000185032.215.66$5,959
Oct 20000031.235.15$0
Sep 2000190031.875.19$6,055
Aug 20000029.644.54$0
Jul 2000187028.534.09$5,335
Jun 2000180029.304.40$5,274
May 20000027.263.68$0
Apr 2000193024.513.12$4,730
Mar 2000186028.422.86$5,286
Feb 20000027.622.73$0
Jan 2000264025.272.48$6,671
Dec 19990024.282.42$0
Nov 1999181023.192.43$4,197
Oct 1999179020.982.80$3,755
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 1999180017.892.37$3,220
Jun 1999172015.942.36$2,742
May 19990015.792.32$0
Apr 1999193015.102.21$2,914
Mar 1999190012.471.84$2,369
Feb 1999009.981.82$0
Jan 1999194010.381.90$2,014
Dec 199820009.201.77$1,840
Nov 1998191010.892.19$2,080
Oct 19980012.421.97$0
Sep 1998191012.592.08$2,405
Aug 19980011.301.91$0
Jul 1998189011.742.24$2,219
Jun 19980011.242.24$0
May 1998194012.622.21$2,448
Apr 1998186013.042.51$2,425
Mar 19980012.802.31$0
Feb 1998192013.952.30$2,678
Jan 1998190014.702.15$2,793
Dec 19970016.322.41$0
Nov 1997187018.193.09$3,402
Oct 1997188019.253.15$3,619
Sep 1997183017.742.95$3,246
Aug 19970017.862.55$0
Jul 1997186017.582.25$3,270
Jun 19970017.242.26$0
May 1997184018.972.31$3,490
Apr 1997188017.882.08$3,361
Mar 19970018.951.94$0
Feb 1997187020.492.21$3,832
Jan 1997192023.483.54$4,508
Dec 19960023.32$0
Nov 1996194021.97$4,262
Oct 1996189023.31$4,406
Sep 1996187022.22$4,155
Aug 1996184020.26$3,728
Jul 19960019.55$0
Jun 1996178018.73$3,334
May 199665019.43$1,263
Apr 1996178021.51$3,829
Mar 19960019.38$0
Feb 19960016.98$0
Jan 1996193017.07$3,295
Dec 1995179017.19$3,077
Nov 19950016.00$0
Oct 19950015.43$0
Sep 1995182016.18$2,945
Aug 1995185015.92$2,945
Jul 19950015.24$0
Jun 1995176016.41$2,888
May 19950017.56$0
Apr 19950017.73$0
Mar 19950016.44$0
Feb 1995181016.58$3,001
Jan 19950015.92$0
Dec 1994185015.03$2,781
Nov 19940015.90$0
Oct 19940015.58$0
Sep 1994180115.29$2,752
Aug 19940116.13$0
Jul 19940117.56$0
Jun 1994176117.09$3,008
May 19940115.88$0
Apr 1994180114.14$2,545
Mar 19940112.46$0
Feb 1994188112.50$2,350
Jan 19940112.66$0
Dec 1993185112.33$2,281
Nov 19930114.49$0
Oct 19930115.85$0
Sep 1993178115.03$2,675
Aug 19930115.66$0
Jul 19930115.46$0
Jun 19930116.79$0
May 1993181117.68$3,200
Apr 19930118.05$0
Mar 1993182118.14$3,301
Feb 19930117.90$0
Jan 1993186116.93$3,149

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 2015 — as filed, then multipliedworked
Oil                  106 bbl  × $ 43.55 =     $4,616
Casinghead gas         0 Mcf  × $  2.43 =         $0

────────────────────────────────────────────────────
Month total                                   $4,616

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. 05/O/2485 is the state's own key, not one this site invented.