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NUNN, J. F. "A"

Operated by COX, JOHN L. (P-5 185980) in the SPRABERRY (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4569District 7CField 85279200NGPA filingOilCasinghead gasSaveExport
Value, all time
$863 k
Jan 1993 – Mar 1996
Value, last 12 filed months
$147 k
at the published price for each month
Months reported
38
1 month not filed
Streams
2
oil, casinghead gas

The SPRABERRY (TREND AREA) field

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 7,461 leases and 22,481 wells, and the rule below applies to all of them.

Discovered
1904-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2016-03-08.

The Commission's schedule remark for this field reads: “AREA) 85279200.”

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
NGPA6none——

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
OilDisposition54,320 bbl$863,376
Casinghead gasProduction266,568 Mcf$0
Total$863,376

266,568 Mcf of this lease's gas, across 33 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 (98)

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 31.5492, -101.7090. A lease has no coordinate of its own — that point is the mean of its wells, and they span 7.4 miles. 37 wells have no surveyed location and are left out of it.

31.56577, -101.70992 · centre of 61 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%
98 of 98 wells
With a plug date
56.1%
55 of 98 wells
Median depth
7,715 ft
56 wells filed one
Completion to plug
28.1 years
median over 17 wells

What the state filed about each well

On the RRC proration schedule
98100.0%
A plug date is filed
5556.1%
BothOn the schedule and plugged. Neither fact cancels the other.
5556.1%
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, 56 of 98 wells. Median 7,715 ft, with the middle half between 7,596 and 8,265 ft; the shallowest is 4,700 ft and the deepest 8,487 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, 18 of 98 wells, Jun 1966 – Sep 1993. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jun 1966 – Sep 1993
18 of 98 wells; 80 filed none
Plug dates filed
Nov 1972 – Mar 2025
55 of 98 wells; 43 filed none

Last completion to plug: a median of 28.1 years across the 17 wells that filed both dates, with the middle half between 17.3 years and 34.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

98 wells

42-3830000237017,600 ft—Aug 1975Yes
42-3830000337027,600 ft—Aug 1975Yes
42-3830010124037,680 ft—Jan 1973Yes
42-3830010328037,620 ft—Jun 1977Yes
42-383001114101———Yes
42-3830011241037,779 ft—Jan 1973Yes
42-3830024425027,573 ft—Jun 1991Yes
42-3830025540017,733 ft—Nov 1974Yes
42-3830054412037,570 ft—Nov 1972Yes
42-3830076935014,700 ft—Nov 1972Yes
42-3830097752016,879 ft—Jul 1974Yes
42-3830097852037,730 ft—Nov 1972Yes
42-3830098052057,742 ft—Jan 1973Yes
42-3830098152067,610 ft—Aug 1974Yes
42-3830098252077,721 ft—Jun 1975Yes
42-3830098352087,701 ft—May 1974Yes
42-3830098452097,731 ft—May 1975Yes
42-3830098552107,720 ft—Jun 1975Yes
42-3830098652137,721 ft—Jul 1974Yes
42-3830098752167,685 ft—Mar 1975Yes
42-3830101852027,740 ft—Mar 1975Yes
42-383011034702———Yes
42-3830115112024,785 ft—Nov 1972Yes
42-3830115922027,725 ft—Nov 1972Yes
42-3830121422017,725 ft—Feb 2023Yes
42-3830121836017,550 ft—Jul 1975Yes
42-3830134132017,676 ft—Nov 1972Yes
42-383013707017,615 ft—Feb 1974Yes
42-383013727037,585 ft—Jan 1973Yes
42-383013761037,635 ft—Mar 1974Yes
42-383013781057,602 ft—Nov 1972Yes
42-383013872017,450 ft—Mar 1974Yes
42-383015414701———Yes
42-3830164317,600 ft—Jun 1985Yes
42-3830164918056,642 ft—Mar 2022Yes
42-3830165511017,505 ft—Nov 1972Yes
42-3830165711027,485 ft—Nov 1972Yes
42-38301658156,710 ft—Jan 2023Yes
42-38301659167,710 ft—Jan 2003Yes
42-3830169718087,620 ft—Jul 2018Yes
42-38380368101———Yes
42-38380369102———Yes
42-38380371104———Yes
42-38380373106———Yes
42-38380374108———Yes
42-38380376202———Yes
42-38380377301———Yes
42-38380378302———Yes
42-38380379303———Yes
42-38380380401———Yes
42-38380381402———Yes
42-38380382501———Yes
42-38380384601———Yes
42-38380385602———Yes
42-38380387702———Yes
42-38380389704———Yes
42-38380390801———Yes
42-38380391901———Yes
42-383803921001———Yes
42-383803951201———Yes
42-383803981204———Yes
42-383803991401———Yes
42-383804001501———Yes
42-383804011611———Yes
42-383804021613———Yes
42-383804031701———Yes
42-383804041702———Yes
42-383804061803———Yes
42-383804071804———Yes
42-383804081806———Yes
42-383804091807———Yes
42-383804101809———Yes
42-383804111810———Yes
42-383804122101———Yes
42-383804152301———Yes
42-383804192601———Yes
42-383804212802———Yes
42-383804222901———Yes
42-3838042434017,540 ft—Apr 1975Yes
42-383804325101———Yes
42-38334218238,250 ftSep 1993Apr 2023Yes
42-38334190228,375 ftDec 1992Dec 2022Yes
42-383005475028,300 ftMay 1992—Yes
42-38334000218,260 ftJul 1990Mar 2016Yes
42-38333987208,260 ftJun 1990Mar 2025Yes
42-38333970198,340 ftNov 1989Jan 2003Yes
42-38333825178,400 ftNov 1987Dec 2022Yes
42-38333826188,400 ftNov 1987Dec 2015Yes
42-3830164618028,487 ftJan 1982Aug 2000Yes
42-3830059133028,410 ftSep 1979Jul 1991Yes
42-3830139117038,385 ftJun 1977May 2016Yes
42-383013801078,370 ftJun 1976Apr 2008Yes
42-3830070935028,413 ftFeb 1976Jan 1990Yes
42-3830059033018,410 ftDec 1975Jan 1990Yes
42-3830126327018,350 ftAug 1974Feb 2024Yes
42-3830024525038,350 ftJan 1974May 1991Yes
42-3830000424018,281 ftOct 1973Jul 2010Yes
42-3830024325017,577 ftJun 1966May 1991Yes

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.

Leases whose centres are nearest (492)

Ranked by the distance between lease centres, within 5 miles. A lease has no coordinate the state files — each centre is the mean of that lease's own wells, so this measures how far apart two centres are and not whether the two leases touch.

LeaseOperatorCentres apart
DAVISGLOSSOP OIL & GAS, LLC0.35 mi
STOKES '14'PIONEER NATURAL RES. USA, INC.0.47 mi
MADISON WEST 13PIONEER NATURAL RES. USA, INC.0.47 mi
STOKES 14 4413HPIONEER NATURAL RES. USA, INC.0.48 mi
MONKENDEAVOR ENERGY RESOURCES L.P.0.51 mi
MONKSTEPHENS, AUTRY C.0.51 mi
STOKES 14 4210HPIONEER NATURAL RES. USA, INC.0.57 mi
SANGER-KATLACOBARON ENERGY INC.0.62 mi
STEVENSON "24"APACHE CORPORATION0.63 mi
NUNN, J. F. -A-PIONEER NATURAL RES. USA, INC.0.63 mi

The 10 nearest are listed. 492 leases in all have a centre within 5 miles of this one.

Operators who reported on those leases

Taken from the same 5-mile set above. This is who filed production, not who holds acreage — the state publishes no acreage register.

Every month this lease reported (38)

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

38 months

Mar 19960019.38—$0
Feb 19960016.98—$0
Jan 19960017.07—$0
Dec 19950017.19—$0
Nov 19950016.00—$0
Sep 19951,0857,72216.18—$17,555
Aug 19951,3818,95315.92—$21,986
Jul 19951,4588,15815.24—$22,220
Jun 19951,0928,62916.41—$17,920
May 19951,2618,18817.56—$22,143
Apr 19951,5317,92417.73—$27,145
Mar 19951,1188,84216.44—$18,380
Feb 19951,7887,84216.58—$29,645
Jan 19953,3598,79715.92—$53,475
Dec 19941,5428,50215.03—$23,176
Nov 19941,4478,33015.90—$23,007
Oct 19941,6408,66415.58—$25,551
Sep 19941,4488,79415.29—$22,140
Aug 19941,4369,14116.13—$23,163
Jul 19941,6279,22617.56—$28,570
Jun 19941,4328,69817.09—$24,473
May 19941,5848,67715.88—$25,154
Apr 19941,6227,68914.14—$22,935
Mar 19941,8168,33812.46—$22,627
Feb 19941,2727,44312.50—$15,900
Jan 19941,6278,53512.66—$20,598
Dec 19931,9686,55812.33—$24,265
Nov 19931,6168,25514.49—$23,416
Oct 19931,9889,13315.85—$31,510
Sep 19931,6209,99215.03—$24,349
Aug 19932,1809,76615.66—$34,139
Jul 19935207,90315.46—$8,039
Jun 199306,53516.79—$0
May 19932,3155,84917.68—$40,929
Apr 19932,1116,62918.05—$38,104
Mar 19932,3246,10418.14—$42,157
Feb 19932,2265,64317.90—$39,845
Jan 19932,8867,10916.93—$48,860

Not filed, and not zero: Oct 1995. The Railroad Commission holds no report for those months, so this page shows none — a zero would state that the lease produced nothing.

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.

Sep 1995 — as filed, then multipliedworked
Oil                1,085 bbl  × $ 16.18 =    $17,555
Casinghead gas     7,722 Mcf  ×  no price            —

────────────────────────────────────────────────────
Month total                                  $17,555

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. 7C/O/4569 is the state's own key, not one this site invented.