ALLYN D

Operated by CHISHOLM EXPLORATION (P-5 149451) in the CHINQUAPIN (STRAWN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 15558District 7BField 17819500OilCasinghead gasSaveExport
Value, all time
$119 k
Jan 1993 – Aug 2003
Value, last 12 filed months
$0
at the published price for each month
Months reported
128
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 15 leases and 42 wells, and the rule below applies to all of them.

Discovered
1973-07-05
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
OilDisposition7,056 bbl$109,914
Casinghead gasProduction16,362 Mcf$8,903
Total$118,817

12,572 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 (2)

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 32.4349, -100.1782. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

32.43489, -100.17816 · 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%
2 of 2 wells
With a plug date
100.0%
2 of 2 wells
Median depth
5,588 ft
2 wells filed one
Completion to plug
20.0 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
2100.0%
A plug date is filed
2100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
2100.0%
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 5,320 and 5,855 ft, median 5,588 ft, over the 2 wells that filed a depth.

Completions filed
Nov 1979 – Sep 1981
2 of 2 wells
Plug dates filed
Oct 2000
2 of 2 wells

Last completion to plug: a median of 20.0 years across the 2 wells that filed both dates, with the middle half between 19.6 years and 20.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-3533106425,320 ftSep 1981Oct 2000Yes
42-3533082215,855 ftNov 1979Oct 2000Yes

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 (128)

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

128 months

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 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 20010024.685.34$0
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 20010027.478.40$0
Dec 20000026.889.12$0
Nov 20000032.215.66$0
Oct 200087031.235.15$2,717
Sep 20000031.875.19$0
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19991622923.192.43$3,827
Oct 199905920.982.80$165
Sep 199905421.752.62$141
Aug 199902819.262.88$81
Jul 199901817.892.37$43
Jun 19991743415.942.36$2,854
May 1999013315.792.32$309
Apr 199903715.102.21$82
Mar 19991861612.471.84$2,349
Feb 19990319.981.82$56
Jan 199902010.381.90$38
Dec 1998194459.201.77$1,865
Nov 199806910.892.19$151
Oct 1998010012.421.97$197
Sep 199818214712.592.08$2,598
Aug 199809811.301.91$187
Jul 1998012811.742.24$286
Jun 199817410611.242.24$2,193
May 199808612.622.21$190
Apr 199818111313.042.51$2,643
Mar 199808712.802.31$201
Feb 199806813.952.30$156
Jan 19981638614.702.15$2,581
Dec 1997010016.322.41$241
Nov 199718414218.193.09$3,785
Oct 1997015919.253.15$501
Sep 1997018817.742.95$556
Aug 199710220317.862.55$2,340
Jul 1997022117.582.25$497
Jun 199718119117.242.26$3,552
May 1997022718.972.31$524
Apr 1997017917.882.08$373
Mar 199718336418.951.94$4,174
Feb 1997017220.492.21$379
Jan 199705223.483.54$184
Dec 199616713423.32$3,894
Nov 1996016221.97$0
Oct 199618018323.31$4,196
Sep 1996011622.22$0
Aug 1996010020.26$0
Jul 199618113019.55$3,539
Jun 1996014218.73$0
May 199617412819.43$3,381
Apr 1996015421.51$0
Mar 199615016519.38$2,907
Feb 1996013816.98$0
Jan 199617431017.07$2,970
Dec 1995024617.19$0
Nov 1995019916.00$0
Oct 199517326115.43$2,669
Sep 1995022416.18$0
Aug 199517325915.92$2,754
Jul 1995029515.24$0
Jun 1995029516.41$0
May 199517923017.56$3,143
Apr 1995019417.73$0
Mar 199516923916.44$2,778
Feb 1995018216.58$0
Jan 199517819315.92$2,834
Dec 1994025015.03$0
Nov 199418627115.90$2,957
Oct 1994022615.58$0
Sep 1994019915.29$0
Aug 199417422516.13$2,807
Jul 1994031617.56$0
Jun 199417140817.09$2,922
May 1994056215.88$0
Apr 199417538714.14$2,475
Mar 199414344312.46$1,782
Feb 199418059912.50$2,250
Jan 1994067012.66$0
Dec 19931,71059912.33$21,084
Nov 1993036914.49$0
Oct 1993033015.85$0
Sep 1993046315.03$0
Aug 1993042715.66$0
Jul 199312422715.46$1,917
Jun 199309716.79$0
May 199304117.68$0
Apr 1993010518.05$0
Mar 1993011218.14$0
Feb 199314218317.90$2,542
Jan 1993038416.93$0

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 2000 — as filed, then multipliedworked
Oil                   87 bbl  × $ 31.23 =     $2,717
Casinghead gas         0 Mcf  × $  5.15 =         $0

────────────────────────────────────────────────────
Month total                                   $2,717

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. 7B/O/15558 is the state's own key, not one this site invented.