THAXTON, NANNIE S.

Operated by MCGOWAN WORKING PARTNERS, INC. (P-5 549836) in the COLORADO field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 579District 04Field 19808001OilCasinghead gasSaveExport
Value, all time
$369 k
Jan 1993 – Mar 2001
Value, last 12 filed months
$2 k
at the published price for each month
Months reported
99
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 8 leases and 50 wells, and the rule below applies to all of them.

Discovered
1936-08-24
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 40 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
OilDisposition22,230 bbl$366,905
Casinghead gasProduction2,232 Mcf$2,115
Total$369,020

1,326 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 (13)

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 26.9461, -98.8952. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

26.94459, -98.89270 · 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%
13 of 13 wells
With a plug date
76.9%
10 of 13 wells
Median depth
2,979 ft
10 wells filed one
Completion to plug
12.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
13100.0%
A plug date is filed
1076.9%
BothOn the schedule and plugged. Neither fact cancels the other.
1076.9%
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

Total depth in feet, 10 of 13 wells. Median 2,979 ft, with the middle half between 2,968 and 3,004 ft; the shallowest is 2,950 ft and the deepest 3,083 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 1 of 13 wells, Jul 1987. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jul 1987
1 of 13 wells; 12 filed none
Plug dates filed
Aug 1987 – Apr 2000
10 of 13 wells; 3 filed none

Last completion to plug: a median of 12.8 years across the 1 well that filed both dates, with the middle half between 12.8 years and 12.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

13 wells

42-2470203922,980 ftApr 2000Yes
42-2470204032,977 ftApr 2000Yes
42-2470204252,966 ftApr 2000Yes
42-2470204582,972 ftApr 2000Yes
42-24702047102,985 ftApr 2000Yes
42-24702049113,010 ftSep 1993Yes
42-24702050122,950 ftAug 1987Yes
42-24702052142,962 ftMar 2000Yes
42-2470205315Yes
42-24702054163,042 ftAug 1987Yes
42-2470205517Yes
42-2470205820Yes
42-24731783213,083 ftJul 1987Apr 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 (99)

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

99 months

Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 200115027.478.40$412
Dec 20000026.889.12$0
Nov 20000032.215.66$0
Oct 200055031.235.15$1,718
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 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19991791819.262.88$3,499
Jul 19993462817.892.37$6,256
Jun 19991712615.942.36$2,787
May 19993532915.792.32$5,641
Apr 19991863015.102.21$2,875
Mar 19990012.471.84$0
Feb 1999182259.981.82$1,862
Jan 19993503110.381.90$3,692
Dec 1998187299.201.77$1,772
Nov 19981882810.892.19$2,109
Oct 19983633112.421.97$4,570
Sep 19983583012.592.08$4,570
Aug 19981753111.301.91$2,037
Jul 19983573111.742.24$4,261
Jun 19981823011.242.24$2,113
May 19983673112.622.21$4,700
Apr 19981893013.042.51$2,540
Mar 19983592612.802.31$4,655
Feb 19981852813.952.30$2,645
Jan 19983743114.702.15$5,565
Dec 19971783116.322.41$2,980
Nov 19973683018.193.09$6,787
Oct 19971873119.253.15$3,697
Sep 19973713017.742.95$6,670
Aug 19971852917.862.55$3,378
Jul 19973643117.582.25$6,469
Jun 19973673017.242.26$6,395
May 19973823118.972.31$7,318
Apr 19971933017.882.08$3,513
Mar 19973863118.951.94$7,375
Feb 19973842820.492.21$7,930
Jan 19971963123.483.54$4,712
Dec 19963923123.32$9,141
Nov 19961922421.97$4,218
Oct 19963863123.31$8,998
Sep 19963753022.22$8,333
Aug 19963873120.26$7,841
Jul 19961893119.55$3,695
Jun 19963533018.73$6,612
May 19963743119.43$7,267
Apr 19961853021.51$3,979
Mar 19963683119.38$7,132
Feb 19963792916.98$6,435
Jan 19962032517.07$3,465
Dec 19952023117.19$3,472
Nov 19954022916.00$6,432
Oct 19951952815.43$3,009
Sep 19952002016.18$3,236
Aug 19953952115.92$6,288
Jul 19952002115.24$3,048
Jun 19953902016.41$6,400
May 19951831917.56$3,213
Apr 19951971817.73$3,493
Mar 19951881916.44$3,091
Feb 19953852816.58$6,383
Jan 19951793115.92$2,850
Dec 19942033015.03$3,051
Nov 19943823015.90$6,074
Oct 19941913115.58$2,976
Sep 19943942715.29$6,024
Aug 19941983116.13$3,194
Jul 19942003117.56$3,512
Jun 19943833017.09$6,545
May 19941883115.88$2,985
Apr 19943913014.14$5,529
Mar 19941883112.46$2,342
Feb 19943842812.50$4,800
Jan 19942073112.66$2,621
Dec 19933873012.33$4,772
Nov 19934023014.49$5,825
Oct 19932003115.85$3,170
Sep 19931691015.03$2,540
Aug 199301615.66$0
Jul 19934123115.46$6,370
Jun 19932093016.79$3,509
May 19932083117.68$3,677
Apr 19934012718.05$7,238
Mar 19931973118.14$3,574
Feb 19933902817.90$6,981
Jan 19933653116.93$6,179

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 2001 — as filed, then multipliedworked
Oil                   15 bbl  × $ 27.47 =       $412
Casinghead gas         0 Mcf  × $  8.40 =         $0

────────────────────────────────────────────────────
Month total                                     $412

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. 04/O/579 is the state's own key, not one this site invented.