OZONA DEVELOPMENT "7"

Operated by LAST DOLLAR LLC (P-5 487693) in the FARMER (SAN ANDRES) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 10421District 7CField 30243500Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$1.5 M
Jan 1993 – May 2026
Value, last 12 filed months
$11 k
at the published price for each month
Months reported
401
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 351 leases and 1,445 wells, and the rule below applies to all of them.

Discovered
1953-01-10
as the register files it
Field class
Oil and gas
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 10 acres. The field rule took effect on 1997-12-16.

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: PER DOCKET 7C-0214566 ON 3/7/97.

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
NGPA4none

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
OilDisposition33,626 bbl$1,476,355
Casinghead gasProduction9,574 Mcf$5,946
Total$1,482,301

7,154 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 (4)

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 31.0493, -101.3229. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

31.04928, -101.32279 · 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
25.0%
1 of 4 wells
With a plug date
25.0%
1 of 4 wells
Median depth
2,160 ft
4 wells filed one
Completion to plug
25.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
125.0%
A plug date is filed
125.0%
BothOn the schedule and plugged. Neither fact cancels the other.
125.0%
NeitherNo plug date, and not on the schedule.
375.0%

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 2,110 and 2,380 ft, median 2,160 ft, over the 4 wells that filed a depth.

Completions filed
Nov 1983 – Feb 1984
4 of 4 wells
Plug dates filed
Nov 2009
1 of 4 wells; 3 filed none

Last completion to plug: a median of 25.8 years across the 1 well that filed both dates, with the middle half between 25.8 years and 25.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells

42-1053465142,110 ftFeb 1984Nov 2009Yes
42-1053464922,120 ftFeb 1984
42-1053464812,380 ftDec 1983
42-1053465032,200 ftNov 1983

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 (401)

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

401 months

May 202600106.413.05$0
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 2025170062.743.08$10,666
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 2025130060.553.23$7,872
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 2024164079.932.15$13,109
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 2024172073.023.30$12,559
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 2023173072.852.39$12,603
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 2022163076.415.73$12,455
Nov 20220085.005.65$0
Oct 2022173087.185.86$15,082
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 20221660115.097.98$19,105
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 20221630108.885.08$17,747
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 2021176077.435.24$13,628
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 2021178063.483.02$11,299
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 2021171057.805.55$9,884
Jan 20210050.412.81$0
Dec 2020177044.642.68$7,901
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 2020175038.371.83$6,715
Jun 20200034.901.69$0
May 2020177016.921.81$2,995
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 2020173057.252.09$9,904
Dec 20190059.012.30$0
Nov 2019174055.302.75$9,622
Oct 20190053.472.42$0
Sep 2019173055.052.66$9,524
Aug 20190053.112.30$0
Jul 2019173056.272.46$9,735
Jun 20190052.782.49$0
May 2019175058.482.74$10,234
Apr 20190062.632.75$0
Mar 2019160056.803.06$9,088
Feb 20190050.852.79$0
Jan 2019160046.033.23$7,365
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 2018175059.543.11$10,420
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 2018172065.382.90$11,245
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 2018175061.782.77$10,812
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 2017175055.423.12$9,699
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 2017178045.373.00$8,076
Jul 20170043.873.09$0
Jun 2017179042.493.09$7,606
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 2017167046.772.98$7,811
Feb 20170050.452.95$0
Jan 2017177049.413.42$8,746
Dec 20160048.763.72$0
Nov 2016165042.492.64$7,011
Oct 2016177046.193.09$8,176
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 2016175041.622.92$7,284
Jun 20160045.352.69$0
May 2016179042.521.99$7,611
Apr 20160036.561.99$0
Mar 2016173033.011.79$5,711
Feb 2016325026.472.06$8,603
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 2015182038.792.17$7,060
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 2015172056.152.88$9,658
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 2015178044.662.98$7,949
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 2014138070.464.25$9,723
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 2014172089.394.04$15,375
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 2014169094.734.73$16,009
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 2013158091.824.35$14,508
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 20131700104.113.72$17,699
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 2013167094.403.93$15,765
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 2013155093.623.91$14,511
Feb 20130091.233.42$0
Jan 2013174091.603.42$15,938
Dec 20120086.773.42$0
Nov 2012173086.953.62$15,042
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 2012171085.133.02$14,557
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 20121740101.652.00$17,687
Mar 201200105.052.22$0
Feb 20121660101.102.57$16,783
Jan 20120098.092.73$0
Dec 2011174096.873.24$16,855
Nov 20110095.723.31$0
Oct 2011180084.983.65$15,296
Sep 2011174083.623.99$14,550
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 2011170092.904.64$15,793
May 20110098.134.40$0
Apr 20111710105.964.33$18,119
Mar 20110096.364.06$0
Feb 2011168085.644.18$14,388
Jan 20110086.504.59$0
Dec 2010168085.734.35$14,403
Nov 20100080.843.80$0
Oct 2010180078.103.51$14,058
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 2010160072.554.74$11,608
Jun 2010175070.364.91$12,313
May 20100071.124.24$0
Apr 2010175081.694.12$14,296
Mar 2010175078.394.39$13,718
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 2009176071.445.48$12,573
Nov 20090074.593.75$0
Oct 2009339072.544.11$24,591
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 2009171066.163.90$11,313
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 2009177042.144.06$7,459
Feb 2009172032.814.63$5,643
Jan 20090035.865.37$0
Dec 2008183037.105.98$6,789
Nov 20080055.496.86$0
Oct 2008172075.246.92$12,941
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 20081730131.0811.39$22,677
Jun 200800131.3313.03$0
May 20081750123.1711.57$21,555
Apr 20081820110.3110.45$20,076
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 2008172090.388.21$15,545
Dec 2007177088.337.30$15,634
Nov 2007174091.677.29$15,951
Oct 20070082.856.92$0
Sep 2007177075.846.24$13,424
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 2007344058.747.85$20,207
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 2007167055.108.22$9,202
Jan 20070050.306.73$0
Dec 2006176056.656.92$9,970
Nov 2006177054.207.62$9,593
Oct 20060054.906.01$0
Sep 2006172060.085.04$10,334
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 2006166066.286.38$11,002
May 2006176066.016.42$11,618
Apr 2006180064.397.36$11,590
Mar 20060056.707.08$0
Feb 2006176057.597.75$10,136
Jan 20060060.598.93$0
Dec 2005170054.9413.42$9,340
Nov 20050054.6910.59$0
Oct 2005176058.3413.80$10,268
Sep 2005179061.4512.08$11,000
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 2005174052.337.38$9,105
May 2005180045.226.65$8,140
Apr 20050049.207.36$0
Mar 2005177050.377.15$8,915
Feb 20050045.226.31$0
Jan 2005180043.166.32$7,769
Dec 20040039.866.75$0
Nov 2004182045.286.33$8,241
Oct 2004179049.706.52$8,896
Sep 20040043.245.28$0
Aug 2004177042.375.55$7,499
Jul 2004178038.286.08$6,814
Jun 20040036.106.43$0
May 2004178037.486.49$6,671
Apr 2004180034.475.86$6,205
Mar 2004181034.365.53$6,219
Feb 20040032.455.51$0
Jan 2004180032.036.30$5,765
Dec 2003181030.266.30$5,477
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 2003177026.314.75$4,657
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 2003178028.565.98$5,084
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 2003179031.146.10$5,574
Feb 2003183033.487.93$6,127
Jan 20030030.315.58$0
Dec 2002181026.914.85$4,871
Nov 20020024.664.14$0
Oct 2002179026.464.23$4,736
Sep 20020027.443.64$0
Aug 2002179025.963.16$4,647
Jul 20020024.583.06$0
Jun 2002179023.733.34$4,248
May 20020024.663.58$0
Apr 2002181023.653.51$4,281
Mar 20020022.003.10$0
Feb 2002185018.222.38$3,371
Jan 20020017.172.38$0
Dec 2001181016.932.36$3,064
Nov 20010018.072.41$0
Oct 2001161019.782.53$3,185
Sep 20010024.262.25$0
Aug 2001180024.873.05$4,477
Jul 2001181023.933.20$4,331
Jun 20010024.563.82$0
May 2001180025.524.31$4,594
Apr 20010024.685.34$0
Mar 2001181024.545.38$4,442
Feb 20010027.755.77$0
Jan 2001167027.478.40$4,587
Dec 2000180026.889.12$4,838
Nov 20000032.215.66$0
Oct 2000181031.235.15$5,653
Sep 2000182031.875.19$5,800
Aug 20000029.644.54$0
Jul 2000178028.534.09$5,078
Jun 2000179029.304.40$5,245
May 2000176027.263.68$4,798
Apr 20000024.513.12$0
Mar 2000182028.422.86$5,172
Feb 20000027.622.73$0
Jan 2000183025.272.48$4,624
Dec 1999178024.282.42$4,322
Nov 1999179023.192.43$4,151
Oct 1999181020.982.80$3,797
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 1999172017.892.37$3,077
Jun 1999177015.942.36$2,821
May 1999182015.792.32$2,874
Apr 19990015.102.21$0
Mar 1999176012.471.84$2,195
Feb 1999009.981.82$0
Jan 1999162010.381.90$1,682
Dec 199818109.201.77$1,665
Nov 1998183010.892.19$1,993
Oct 19980012.421.97$0
Sep 19981487912.592.08$2,028
Aug 19981508011.301.91$1,848
Jul 19981515611.742.24$1,898
Jun 19981935411.242.24$2,290
May 19986512412.622.21$1,094
Apr 199817612613.042.51$2,611
Mar 199816215312.802.31$2,427
Feb 199814913113.952.30$2,380
Jan 199818310314.702.15$2,912
Dec 199718011916.322.41$3,225
Nov 199722215618.193.09$4,520
Oct 1997014619.253.15$460
Sep 199717015217.742.95$3,465
Aug 199717915917.862.55$3,603
Jul 19972007517.582.25$3,685
Jun 199717912117.242.26$3,359
May 199712711918.972.31$2,684
Apr 199717711217.882.08$3,398
Mar 1997014818.951.94$287
Feb 199717110220.492.21$3,729
Jan 199718210523.483.54$4,645
Dec 199617611723.32$4,104
Nov 199618210821.97$3,999
Oct 199608723.31$0
Sep 19961768822.22$3,911
Aug 199606920.26$0
Jul 19961718719.55$3,343
Jun 199608818.73$0
May 199616510319.43$3,206
Apr 199609221.51$0
Mar 19961737619.38$3,353
Feb 199609616.98$0
Jan 199614310117.07$2,441
Dec 19957010817.19$1,203
Nov 199515416816.00$2,464
Oct 199516313915.43$2,515
Sep 199517516416.18$2,832
Aug 199517115815.92$2,722
Jul 1995015915.24$0
Jun 199531113616.41$5,104
May 1995019717.56$0
Apr 199517119517.73$3,032
Mar 199518419716.44$3,025
Feb 199518218316.58$3,018
Jan 1995019315.92$0
Dec 199414620015.03$2,194
Nov 199414820215.90$2,353
Oct 199417014415.58$2,649
Sep 199417618515.29$2,691
Aug 199416913416.13$2,726
Jul 199416417017.56$2,880
Jun 199416717617.09$2,854
May 1994020415.88$0
Apr 199414216214.14$2,008
Mar 199417015612.46$2,118
Feb 199417217512.50$2,150
Jan 199416816712.66$2,127
Dec 199316317012.33$2,010
Nov 199316018514.49$2,318
Oct 1993019515.85$0
Sep 199316619015.03$2,495
Aug 199317120615.66$2,678
Jul 199317919315.46$2,767
Jun 1993016016.79$0
May 199317616317.68$3,112
Apr 19931808518.05$3,249
Mar 199318613718.14$3,374
Feb 1993013017.90$0
Jan 199317515616.93$2,963

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 2025 — as filed, then multipliedworked
Oil                  170 bbl  × $ 62.74 =    $10,666
Casinghead gas         0 Mcf  × $  3.08 =         $0

────────────────────────────────────────────────────
Month total                                  $10,666

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/10421 is the state's own key, not one this site invented.