SPIELHAGEN, E. J. -B-

Operated by CTR PETROLEUM, INC. (P-5 191850) in the COSDEN, WEST field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 345District 02Field 20876001OilCasinghead gasSaveExport
Value, all time
$439 k
Jan 1993 – Jul 2005
Value, last 12 filed months
$3 k
at the published price for each month
Months reported
151
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 7 leases and 18 wells, and the rule below applies to all of them.

Discovered
1942-12-22
as the register files it
Field class
Oil
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition22,612 bbl$439,106
Casinghead gasProduction21 Mcf$0
Total$439,106

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 (3)

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 28.6175, -97.8350. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

28.61754, -97.83510 · 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%
3 of 3 wells
With a plug date
100.0%
3 of 3 wells
Median depth
7,395 ft
3 wells filed one
Completion to plug
60.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
3100.0%
A plug date is filed
3100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
3100.0%
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

Between 7,082 and 7,432 ft, median 7,395 ft, over the 3 wells that filed a depth.

Completions filed
Aug 1944
1 of 3 wells; 2 filed none
Plug dates filed
Aug 1994 – Jun 2005
3 of 3 wells

Last completion to plug: a median of 60.8 years across the 1 well that filed both dates, with the middle half between 60.8 years and 60.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-0250025527,395 ftAug 1994Yes
42-0250025937,082 ftJun 2005Yes
42-0250024417,432 ftAug 1944Jun 2005Yes

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 (151)

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

151 months

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 200478043.245.28$3,373
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 2004165036.106.43$5,957
May 20040037.486.49$0
Apr 2004163034.475.86$5,619
Mar 20040034.365.53$0
Feb 2004164032.455.51$5,322
Jan 20040032.036.30$0
Dec 2003165030.266.30$4,993
Nov 20030028.804.60$0
Oct 2003137028.174.76$3,859
Sep 2003165026.314.75$4,341
Aug 20030029.765.13$0
Jul 2003128029.415.17$3,764
Jun 2003179028.565.98$5,112
May 20030026.595.97$0
Apr 2003165026.675.41$4,401
Mar 20030031.146.10$0
Feb 2003160033.487.93$5,357
Jan 20030030.315.58$0
Dec 2002163026.914.85$4,386
Nov 20020024.664.14$0
Oct 2002143026.464.23$3,784
Sep 2002170027.443.64$4,665
Aug 20020025.963.16$0
Jul 2002157024.583.06$3,859
Jun 2002162023.733.34$3,844
May 20020024.663.58$0
Apr 2002161023.653.51$3,808
Mar 2002159022.003.10$3,498
Feb 2002154018.222.38$2,806
Jan 2002154017.172.38$2,644
Dec 20010016.932.36$0
Nov 200199018.072.41$1,789
Oct 2001141019.782.53$2,789
Sep 2001169024.262.25$4,100
Aug 2001161024.873.05$4,004
Jul 20010023.933.20$0
Jun 2001152024.563.82$3,733
May 2001162025.524.31$4,134
Apr 2001163024.685.34$4,023
Mar 2001148024.545.38$3,632
Feb 20010027.755.77$0
Jan 2001171027.478.40$4,697
Dec 2000171026.889.12$4,596
Nov 2000169032.215.66$5,443
Oct 2000163031.235.15$5,090
Sep 20000031.875.19$0
Aug 2000176029.644.54$5,217
Jul 2000166028.534.09$4,736
Jun 2000160029.304.40$4,688
May 20000027.263.68$0
Apr 2000130024.513.12$3,186
Mar 2000150028.422.86$4,263
Feb 2000154027.622.73$4,253
Jan 2000133025.272.48$3,361
Dec 1999144024.282.42$3,496
Nov 1999162023.192.43$3,757
Oct 1999169020.982.80$3,546
Sep 1999164021.752.62$3,567
Aug 1999163019.262.88$3,139
Jul 1999168017.892.37$3,006
Jun 1999155015.942.36$2,471
May 19990015.792.32$0
Apr 1999160015.102.21$2,416
Mar 19990012.471.84$0
Feb 199915509.981.82$1,547
Jan 19990010.381.90$0
Dec 199818109.201.77$1,665
Nov 1998171010.892.19$1,862
Oct 1998172012.421.97$2,136
Sep 1998167012.592.08$2,103
Aug 19980011.301.91$0
Jul 1998177011.742.24$2,078
Jun 1998170011.242.24$1,911
May 19980012.622.21$0
Apr 1998158013.042.51$2,060
Mar 1998148012.802.31$1,894
Feb 1998130013.952.30$1,814
Jan 1998158014.702.15$2,323
Dec 1997148016.322.41$2,415
Nov 1997151018.193.09$2,747
Oct 1997160019.253.15$3,080
Sep 1997177017.742.95$3,140
Aug 1997174017.862.55$3,108
Jul 1997167017.582.25$2,936
Jun 1997312017.242.26$5,379
May 1997161018.972.31$3,054
Apr 19970017.882.08$0
Mar 1997182018.951.94$3,449
Feb 1997182020.492.21$3,729
Jan 1997167023.483.54$3,921
Dec 1996177023.32$4,128
Nov 1996172021.97$3,779
Oct 1996175023.31$4,079
Sep 1996176022.22$3,911
Aug 1996175020.26$3,546
Jul 1996177019.55$3,460
Jun 1996172018.73$3,222
May 1996177019.43$3,439
Apr 1996170021.51$3,657
Mar 1996175019.38$3,392
Feb 1996183016.98$3,107
Jan 1996165017.07$2,817
Dec 1995349017.19$5,999
Nov 1995178016.00$2,848
Oct 1995173015.43$2,669
Sep 1995390016.18$6,310
Aug 19950015.92$0
Jul 1995183015.24$2,789
Jun 1995175016.41$2,872
May 1995179017.56$3,143
Apr 1995180017.73$3,191
Mar 1995361016.44$5,935
Feb 1995364016.58$6,035
Jan 1995352015.92$5,604
Dec 1994171015.03$2,570
Nov 1994175015.90$2,783
Oct 1994355015.58$5,531
Sep 1994180115.29$2,752
Aug 1994177116.13$2,855
Jul 1994353117.56$6,199
Jun 1994163117.09$2,786
May 1994354115.88$5,622
Apr 1994159114.14$2,248
Mar 1994353112.46$4,398
Feb 1994344112.50$4,300
Jan 1994351112.66$4,444
Dec 1993305112.33$3,761
Nov 1993178114.49$2,579
Oct 1993351115.85$5,563
Sep 1993160115.03$2,405
Aug 1993351115.66$5,497
Jul 1993169115.46$2,613
Jun 1993344116.79$5,776
May 1993342117.68$6,047
Apr 1993360118.05$6,498
Mar 1993341118.14$6,186
Feb 1993176117.90$3,150
Jan 1993339116.93$5,739

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.

Sep 2004 — as filed, then multipliedworked
Oil                   78 bbl  × $ 43.24 =     $3,373
Casinghead gas         0 Mcf  × $  5.28 =         $0

────────────────────────────────────────────────────
Month total                                   $3,373

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. 02/O/345 is the state's own key, not one this site invented.