SCHRADER-STONEHENGE UNIT

Operated by COX & PERKINS EXPLORATION, INC. (P-5 183345) in the CALDWELL (AUSTIN CHALK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 21061District 03Field 14710500NGPA filingOilCasinghead gasSaveExport
Value, all time
$632 k
Jan 1993 – Aug 2004
Value, last 12 filed months
$675
at the published price for each month
Months reported
140
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 256 leases and 330 wells, and the rule below applies to all of them.

Discovered
1978-06-29
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,200 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 1991-11-25.

The Commission's schedule remark for this field reads: PER DOCKET 3-97101 EFF 11-25-91, PERM RULES. 80 ACRE OPT/3250 DIAG

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA1none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition17,896 bbl$321,443
Casinghead gasProduction285,385 Mcf$310,067
Total$631,509

183,372 Mcf of this lease's gas, across 48 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 30.4450, -96.5873. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

30.44497, -96.58734 · 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
12,700 ft
1 wells filed one
Completion to plug
13.4 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 12,700 ft.

Completions filed
Feb 1991
1 of 1 wells
Plug dates filed
Jul 2004
1 of 1 wells

Last completion to plug: a median of 13.4 years across the 1 well that filed both dates, with the middle half between 13.4 years and 13.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-05133155112,700 ftFeb 1991Jul 2004Yes

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 (140)

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

140 months

Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 200418037.486.49$675
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 2002188026.914.85$5,059
Nov 200203124.664.14$128
Oct 20021165326.464.23$3,053
Sep 2002186427.443.64$3,168
Aug 200251,09625.963.16$3,598
Jul 20021971,00324.583.06$7,913
Jun 200231,03523.733.34$3,526
May 2002785424.663.58$3,233
Apr 2002497223.653.51$3,509
Mar 200231,24922.003.10$3,941
Feb 20021911,19118.222.38$6,309
Jan 200281,18317.172.38$2,948
Dec 200131,48416.932.36$3,560
Nov 20011831,40418.072.41$6,684
Oct 200151,39419.782.53$3,624
Sep 20011861,67024.262.25$8,272
Aug 200141,51724.873.05$4,731
Jul 20011841,65323.933.20$9,688
Jun 2001093224.563.82$3,564
May 200141,24025.524.31$5,443
Apr 20011781,36624.685.34$11,681
Mar 20011881,21524.545.38$11,146
Feb 200131,20927.755.77$7,056
Jan 20011951,33727.478.40$16,586
Dec 200001,27526.889.12$11,631
Nov 20001811,50732.215.66$14,357
Oct 200051,67831.235.15$8,790
Sep 20001891,31731.875.19$12,854
Aug 200021,54129.644.54$7,057
Jul 20001901,57828.534.09$11,874
Jun 200021,44529.304.40$6,413
May 20001891,76027.263.68$11,629
Apr 200021,58424.513.12$4,985
Mar 20001771,35728.422.86$8,911
Feb 200061,55927.622.73$4,416
Jan 200041,68125.272.48$4,271
Dec 19991731,60624.282.42$8,093
Nov 19991931,72623.192.43$8,677
Oct 199931,83520.982.80$5,208
Sep 199921,60821.752.62$4,255
Aug 19991791,65719.262.88$8,212
Jul 19991851,74017.892.37$7,438
Jun 19991871,72715.942.36$7,060
May 199951,53215.792.32$3,635
Apr 199911,64315.102.21$3,643
Mar 19991841,60812.471.84$5,251
Feb 199971,6979.981.82$3,155
Jan 199951,58010.381.90$3,054
Dec 19981821,6759.201.77$4,645
Nov 199801,71510.892.19$3,749
Oct 199831,68312.421.97$3,351
Sep 19981811,79812.592.08$6,023
Aug 19981464111.301.91$1,381
Jul 199851,59411.742.24$3,625
Jun 19981701,87711.242.24$6,110
May 19981772,24512.622.21$7,187
Apr 1998101,47113.042.51$3,816
Mar 199841,45712.802.31$3,416
Feb 1998653413.952.30$1,311
Jan 19981087914.702.15$2,041
Dec 199716531316.322.41$3,447
Nov 199713418.193.09$123
Oct 199773419.253.15$242
Sep 19971792,08517.742.95$9,336
Aug 199741,88117.862.55$4,877
Jul 19971812,27917.582.25$8,303
Jun 19973522,24517.242.26$11,136
May 19974222,01118.972.31$12,648
Apr 199721,77117.882.08$3,724
Mar 19971812,03218.951.94$7,370
Feb 199761,95920.492.21$4,444
Jan 19971823,00723.483.54$14,917
Dec 19961862,05623.32$4,338
Nov 19961912,19521.97$4,196
Oct 199601,86023.31$0
Sep 19961933,17422.22$4,288
Aug 199643,09220.26$81
Jul 19961873,26619.55$3,656
Jun 199612,71518.73$19
May 19961792,63319.43$3,478
Apr 19961953,59921.51$4,194
Mar 199643,02119.38$78
Feb 19963934,09516.98$6,673
Jan 199643,30317.07$68
Dec 19953653,15517.19$6,274
Nov 199523,07216.00$32
Oct 199512,80015.43$15
Sep 19951803,27416.18$2,912
Aug 19953463,72915.92$5,508
Jul 19951724,15715.24$2,621
Jun 199534,76016.41$49
May 19951984,67417.56$3,477
Apr 19953454,41917.73$6,117
Mar 19953604,32616.44$5,918
Feb 199514,20216.58$17
Jan 19951915,33815.92$3,041
Dec 19941943,94615.03$2,916
Nov 19941994,74815.90$3,164
Oct 19941804,29315.58$2,804
Sep 19942473,94815.29$3,777
Aug 19943324,31416.13$5,355
Jul 19943593,51417.56$6,304
Jun 1994844,03217.09$1,436
May 19943604,22215.88$5,717
Apr 19941964,33514.14$2,771
Mar 19943405,02612.46$4,236
Feb 19943624,36912.50$4,525
Jan 19941914,05012.66$2,418
Dec 19933462,84012.33$4,266
Nov 19937145,83314.49$10,346
Oct 19931,4344,96315.85$22,729
Sep 199323,57615.03$30
Aug 19935404,52015.66$8,456
Jul 1993184,48015.46$278
Jun 19933584,55516.79$6,011
May 19933724,50417.68$6,577
Apr 19931934,59218.05$3,484
Mar 19933413,75618.14$6,186
Feb 19931982,78017.90$3,544
Jan 19933513,26116.93$5,942

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.

May 2004 — as filed, then multipliedworked
Oil                   18 bbl  × $ 37.48 =       $675
Casinghead gas         0 Mcf  × $  6.49 =         $0

────────────────────────────────────────────────────
Month total                                     $675

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. 03/O/21061 is the state's own key, not one this site invented.