SHACKLEFORD

Operated by MIDKIFF, JOHN (P-5 565125) in the SPRABERRY (TREND AREA CL. FK.) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 29157District 08Field 85280400Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$153 k
Jan 1993 – Jan 2005
Value, last 12 filed months
$0
at the published price for each month
Months reported
145
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 80 leases and 120 wells, and the rule below applies to all of them.

Discovered
1955-11-01
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
660 ft
minimum

A drilling unit in this field needs at least 80 acres.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: 160 OPTIONAL ACRES

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
OilDisposition8,322 bbl$138,159
Casinghead gasProduction18,932 Mcf$14,964
Total$153,123

12,523 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 31.6690, -101.9217. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.66903, -101.92166 · 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
7,533 ft
1 wells filed one
Completion to plug
20.3 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 7,533 ft.

Completions filed
Aug 1984
1 of 1 wells
Plug dates filed
Dec 2004
1 of 1 wells

Last completion to plug: a median of 20.3 years across the 1 well that filed both dates, with the middle half between 20.3 years and 20.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-3290144417,533 ftAug 1984Dec 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 (145)

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

145 months

Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
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 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 20000031.235.15$0
Sep 20000031.875.19$0
Aug 20000029.644.54$0
Jul 200027028.534.09$770
Jun 20000029.304.40$0
May 2000174027.263.68$4,743
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 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 199952015.942.36$829
May 199979015.792.32$1,247
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 1999023810.381.90$452
Dec 199802849.201.77$504
Nov 199819027010.892.19$2,659
Oct 1998028612.421.97$563
Sep 1998027312.592.08$569
Aug 1998027011.301.91$515
Jul 199818126411.742.24$2,716
Jun 1998025611.242.24$573
May 1998025312.622.21$558
Apr 199818525113.042.51$3,041
Mar 1998024812.802.31$573
Feb 1998022213.952.30$510
Jan 199817325114.702.15$3,084
Dec 1997024116.322.41$581
Nov 1997024118.193.09$744
Oct 199718824319.253.15$4,384
Sep 1997025117.742.95$742
Aug 1997013717.862.55$350
Jul 199718527117.582.25$3,861
Jun 1997022917.242.26$517
May 1997015818.972.31$365
Apr 199717831417.882.08$3,837
Mar 1997032818.951.94$636
Feb 1997029720.492.21$655
Jan 199718833323.483.54$5,593
Dec 1996033623.32$0
Nov 199617433421.97$3,823
Oct 1996033423.31$0
Sep 1996028922.22$0
Aug 199616530620.26$3,343
Jul 1996029919.55$0
Jun 199618228418.73$3,409
May 1996027119.43$0
Apr 199619525121.51$4,194
Mar 1996022119.38$0
Feb 19961836416.98$3,107
Jan 19960117.07$0
Dec 1995191117.19$3,283
Nov 19950116.00$0
Oct 19951914915.43$2,947
Sep 1995018216.18$0
Aug 199517824515.92$2,834
Jul 1995025715.24$0
Jun 199518037116.41$2,954
May 199518526617.56$3,249
Apr 1995012817.73$0
Mar 199518031716.44$2,959
Feb 199518830716.58$3,117
Jan 1995034115.92$0
Dec 199419228815.03$2,886
Nov 1994031915.90$0
Oct 199417035315.58$2,649
Sep 199418640415.29$2,844
Aug 199417739716.13$2,855
Jul 199416742117.56$2,933
Jun 199417743117.09$3,025
May 199416931415.88$2,684
Apr 199417834314.14$2,517
Mar 199419238212.46$2,392
Feb 199418734312.50$2,338
Jan 199417736712.66$2,241
Dec 199317934512.33$2,207
Nov 199317627714.49$2,550
Oct 199317524215.85$2,774
Sep 199317323215.03$2,600
Aug 199318923915.66$2,960
Jul 199334914415.46$5,396
Jun 199317322016.79$2,905
May 199318025217.68$3,182
Apr 199319114718.05$3,448
Mar 199338623918.14$7,002
Feb 199318719717.90$3,347
Jan 1993017216.93$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.

Jul 2000 — as filed, then multipliedworked
Oil                   27 bbl  × $ 28.53 =       $770
Casinghead gas         0 Mcf  × $  4.09 =         $0

────────────────────────────────────────────────────
Month total                                     $770

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. 08/O/29157 is the state's own key, not one this site invented.