HERRERA, GREGORIA ET AL

Operated by CENTURY RESOURCES, INC. (P-5 141835) in the SAN MIGUEL CREEK (W-4, SEG. AA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 11891District 01Field 80300880OilCasinghead gasSaveExport
Value, all time
$729 k
Jan 1993 – Aug 2006
Value, last 12 filed months
$22 k
at the published price for each month
Months reported
164
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 4 leases and 4 wells, and the rule below applies to all of them.

Discovered
1987-09-20
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

The Commission's schedule remark for this field reads: CONS. TO SAN MIGUEL CREEK (WILCOX CONS.)

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
OilDisposition36,868 bbl$729,407
Casinghead gasProduction21 Mcf$0
Total$729,407

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 (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 28.6164, -98.5113. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

28.61643, -98.51125 · 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
0.0%
0 of 1 wells
Median depth
6,100 ft
1 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
1100.0%
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.
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 6,100 ft.

Completions filed
Jul 1997
1 of 1 wells

1 well

42-3113256836,100 ftJul 1997Yes

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 (164)

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

164 months

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 2006236060.598.93$14,299
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 2005128061.4512.08$7,866
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 200592052.337.38$4,814
May 20050045.226.65$0
Apr 2005138049.207.36$6,790
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 2005101043.166.32$4,359
Dec 20040039.866.75$0
Nov 200464045.286.33$2,898
Oct 2004135049.706.52$6,710
Sep 20040043.245.28$0
Aug 2004145042.375.55$6,144
Jul 2004180038.286.08$6,890
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 2004193034.475.86$6,653
Mar 20040034.365.53$0
Feb 2004181032.455.51$5,873
Jan 20040032.036.30$0
Dec 2003181030.266.30$5,477
Nov 20030028.804.60$0
Oct 2003135028.174.76$3,803
Sep 2003111026.314.75$2,920
Aug 2003177029.765.13$5,268
Jul 2003169029.415.17$4,970
Jun 2003172028.565.98$4,912
May 2003612026.595.97$16,273
Apr 2003181026.675.41$4,827
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 200388030.315.58$2,667
Dec 2002182026.914.85$4,898
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 2002165025.963.16$4,283
Jul 2002103024.583.06$2,532
Jun 2002101023.733.34$2,397
May 2002154024.663.58$3,798
Apr 20020023.653.51$0
Mar 2002281022.003.10$6,182
Feb 2002177018.222.38$3,225
Jan 2002278017.172.38$4,773
Dec 2001256016.932.36$4,334
Nov 2001177018.072.41$3,198
Oct 2001180019.782.53$3,560
Sep 2001366024.262.25$8,879
Aug 20010024.873.05$0
Jul 2001191023.933.20$4,571
Jun 2001187024.563.82$4,593
May 20010025.524.31$0
Apr 2001181024.685.34$4,467
Mar 20010024.545.38$0
Feb 2001182027.755.77$5,051
Jan 2001191027.478.40$5,247
Dec 2000365026.889.12$9,811
Nov 2000177032.215.66$5,701
Oct 2000184031.235.15$5,746
Sep 2000362031.875.19$11,537
Aug 2000174029.644.54$5,157
Jul 2000176028.534.09$5,021
Jun 2000186029.304.40$5,450
May 2000151027.263.68$4,116
Apr 2000185024.513.12$4,534
Mar 2000370028.422.86$10,515
Feb 2000189027.622.73$5,220
Jan 2000177025.272.48$4,473
Dec 1999355024.282.42$8,619
Nov 1999187023.192.43$4,337
Oct 1999341020.982.80$7,154
Sep 1999182021.752.62$3,959
Aug 1999355019.262.88$6,837
Jul 1999283017.892.37$5,063
Jun 1999183015.942.36$2,917
May 1999176015.792.32$2,779
Apr 1999315015.102.21$4,757
Mar 1999165012.471.84$2,058
Feb 199935609.981.82$3,553
Jan 1999184010.381.90$1,910
Dec 199836409.201.77$3,349
Nov 1998179010.892.19$1,949
Oct 1998176012.421.97$2,186
Sep 1998344012.592.08$4,331
Aug 1998181011.301.91$2,045
Jul 1998167011.742.24$1,961
Jun 1998173011.242.24$1,945
May 1998178012.622.21$2,246
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 1998174013.952.30$2,427
Jan 1998293014.702.15$4,307
Dec 1997269016.322.41$4,390
Nov 19970018.193.09$0
Oct 1997169019.253.15$3,253
Sep 1997503017.742.95$8,923
Aug 1997913017.862.55$16,306
Jul 19970017.582.25$0
Jun 199724017.242.26$414
May 19970018.972.31$0
Apr 1997143017.882.08$2,557
Mar 1997182018.951.94$3,449
Feb 1997176020.492.21$3,606
Jan 1997179023.483.54$4,203
Dec 1996257023.32$5,993
Nov 1996180021.97$3,955
Oct 1996301023.31$7,016
Sep 1996178022.22$3,955
Aug 1996181020.26$3,667
Jul 1996264019.55$5,161
Jun 1996180018.73$3,371
May 1996213019.43$4,139
Apr 1996241021.51$5,184
Mar 1996233019.38$4,516
Feb 1996253016.98$4,296
Jan 1996246017.07$4,199
Dec 1995313017.19$5,380
Nov 1995127016.00$2,032
Oct 1995297015.43$4,583
Sep 1995203016.18$3,285
Aug 1995323015.92$5,142
Jul 1995199015.24$3,033
Jun 1995310016.41$5,087
May 1995172017.56$3,020
Apr 1995262017.73$4,645
Mar 1995300016.44$4,932
Feb 1995277016.58$4,593
Jan 1995358015.92$5,699
Dec 1994360015.03$5,411
Nov 1994352015.90$5,597
Oct 1994345015.58$5,375
Sep 1994355115.29$5,428
Aug 1994331116.13$5,339
Jul 1994113117.56$1,984
Jun 1994352117.09$6,016
May 1994354115.88$5,622
Apr 1994353114.14$4,991
Mar 1994435112.46$5,420
Feb 1994459112.50$5,738
Jan 1994899112.66$11,381
Dec 1993353112.33$4,352
Nov 1993544114.49$7,883
Oct 1993542115.85$8,591
Sep 1993718115.03$10,792
Aug 1993539115.66$8,441
Jul 1993699115.46$10,807
Jun 1993718116.79$12,055
May 1993897117.68$15,859
Apr 1993880118.05$15,884
Mar 19931,073118.14$19,464
Feb 1993908117.90$16,253
Jan 19931,085116.93$18,369

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 2006 — as filed, then multipliedworked
Oil                  236 bbl  × $ 60.59 =    $14,299
Casinghead gas         0 Mcf  × $  8.93 =         $0

────────────────────────────────────────────────────
Month total                                  $14,299

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/11891 is the state's own key, not one this site invented.