HALFF "62"

Operated by MOSAIC TEXAS LLC (P-5 589983) in the HAFLAW (QUEEN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 7991District 7CField 37945500NGPA filingOilCasinghead gasSaveExport
Value, all time
$349 k
Jan 1993 – May 2026
Value, last 12 filed months
$0
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 4 leases and 8 wells, and the rule below applies to all of them.

Discovered
1979-09-08
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 20 acres.

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
OilDisposition10,958 bbl$348,992
Casinghead gasProduction689 Mcf$419
Total$349,411

541 Mcf of this lease's gas, across 25 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 (5)

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 30.8237, -101.8278. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

30.82353, -101.82881 · 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
60.0%
3 of 5 wells
With a plug date
60.0%
3 of 5 wells
Median depth
1,701 ft
5 wells filed one
Completion to plug
24.9 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
360.0%
A plug date is filed
360.0%
BothOn the schedule and plugged. Neither fact cancels the other.
360.0%
NeitherNo plug date, and not on the schedule.
240.0%

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 1,606 and 1,822 ft, median 1,701 ft, over the 5 wells that filed a depth.

Completions filed
Sep 1979 – Nov 1981
5 of 5 wells
Plug dates filed
May 2001 – May 2013
3 of 5 wells; 2 filed none

Last completion to plug: a median of 24.9 years across the 3 wells that filed both dates, with the middle half between 22.3 years and 28.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

5 wells

42-1053352561,701 ftNov 1981Oct 2006Yes
42-1053331651,606 ftAug 1981May 2001Yes
42-1053331541,660 ftMay 1981May 2013Yes
42-1053282111,750 ftAug 1980
42-1050173921,822 ftSep 1979

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 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
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 20240079.932.15$0
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 20240073.023.30$0
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 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
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 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 201904962.632.75$135
Mar 201902956.803.06$89
Feb 201907050.852.79$195
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 201851065.382.90$3,334
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 2017163049.292.98$8,034
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 2016166042.521.99$7,058
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 2014159070.464.25$11,203
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 2013160094.834.15$15,173
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 20121610101.102.57$16,277
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20111083.404.15$83
Jul 20110094.144.52$0
Jun 20112092.904.64$186
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 2011161096.364.06$15,514
Feb 20110085.644.18$0
Jan 20111086.504.59$87
Dec 20102085.734.35$171
Nov 20100080.843.80$0
Oct 20102078.103.51$156
Sep 2010160072.633.98$11,621
Aug 20101073.684.42$74
Jul 20100072.554.74$0
Jun 20101070.364.91$70
May 20101071.124.24$71
Apr 20100081.694.12$0
Mar 2010160078.394.39$12,542
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 2009154065.543.06$10,093
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 2009155042.144.06$6,532
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 20081560101.767.88$15,875
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 2008127092.538.77$11,751
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 2007140070.906.39$9,926
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 2007126055.108.22$6,943
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 2006120054.906.01$6,588
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 200645066.286.38$2,983
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 200681056.707.08$4,593
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 200564054.9413.42$3,516
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 200583061.4512.08$5,100
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 200562052.337.38$3,244
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 200554050.377.15$2,720
Feb 200564045.226.31$2,894
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 200460045.286.33$2,717
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 200446038.286.08$1,761
Jun 20040036.106.43$0
May 200480037.486.49$2,998
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 200462032.455.51$2,012
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 200375028.804.60$2,160
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 200332029.765.13$952
Jul 20030029.415.17$0
Jun 200377028.565.98$2,199
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 200352031.146.10$1,619
Feb 20030033.487.93$0
Jan 200334030.315.58$1,031
Dec 200290026.914.85$2,422
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 200249027.443.64$1,345
Aug 20020025.963.16$0
Jul 200275024.583.06$1,844
Jun 200267023.733.34$1,590
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 200271022.003.10$1,562
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 200158016.932.36$982
Nov 20010018.072.41$0
Oct 200191019.782.53$1,800
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 200173023.933.20$1,747
Jun 20010024.563.82$0
May 2001154025.524.31$3,930
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 200079031.235.15$2,467
Sep 20000031.875.19$0
Aug 20000029.644.54$0
Jul 2000120028.534.09$3,424
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 200078024.513.12$1,912
Mar 20000028.422.86$0
Feb 200082027.622.73$2,265
Jan 20000025.272.48$0
Dec 199948024.282.42$1,165
Nov 1999100023.192.43$2,319
Oct 199980020.982.80$1,678
Sep 1999115021.752.62$2,501
Aug 19990019.262.88$0
Jul 1999100017.892.37$1,789
Jun 199942015.942.36$669
May 1999119015.792.32$1,879
Apr 19990015.102.21$0
Mar 199994012.471.84$1,172
Feb 199915809.981.82$1,577
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 1998107010.892.19$1,165
Oct 199882012.421.97$1,018
Sep 1998105012.592.08$1,322
Aug 1998152011.301.91$1,718
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 1998160012.622.21$2,019
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 1998120013.952.30$1,674
Jan 19980014.702.15$0
Dec 1997156016.322.41$2,546
Nov 19970018.193.09$0
Oct 1997112019.253.15$2,156
Sep 19970017.742.95$0
Aug 1997158017.862.55$2,822
Jul 19970017.582.25$0
Jun 19970017.242.26$0
May 1997143018.972.31$2,713
Apr 19970017.882.08$0
Mar 1997154018.951.94$2,918
Feb 19970020.492.21$0
Jan 1997164023.483.54$3,851
Dec 1996108023.32$2,519
Nov 19960021.97$0
Oct 1996160023.31$3,730
Sep 19960022.22$0
Aug 1996162020.26$3,282
Jul 19960019.55$0
Jun 1996152018.73$2,847
May 19960419.43$0
Apr 199684021.51$1,807
Mar 1996143019.38$2,771
Feb 1996163016.98$2,768
Jan 19960017.07$0
Dec 1995131017.19$2,252
Nov 19950016.00$0
Oct 1995137015.43$2,114
Sep 19950016.18$0
Aug 1995110015.92$1,751
Jul 1995110115.24$1,676
Jun 1995160016.41$2,626
May 19950017.56$0
Apr 19950017.73$0
Mar 19951001916.44$1,644
Feb 1995164016.58$2,719
Jan 19950015.92$0
Dec 199470015.03$1,052
Nov 1994162015.90$2,576
Oct 199478115.58$1,215
Sep 19940715.29$0
Aug 1994134716.13$2,161
Jul 19941291417.56$2,265
Jun 19940717.09$0
May 1994136115.88$2,160
Apr 19941591314.14$2,248
Mar 199401912.46$0
Feb 19941633612.50$2,038
Jan 199402912.66$0
Dec 19932293312.33$2,824
Nov 199303814.49$0
Oct 1993160715.85$2,536
Sep 199301515.03$0
Aug 19931562215.66$2,443
Jul 199302515.46$0
Jun 19931622016.79$2,720
May 19931604717.68$2,829
Apr 199305518.05$0
Mar 19931624318.14$2,939
Feb 199303617.90$0
Jan 19931574216.93$2,658

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.

Apr 2019 — as filed, then multipliedworked
Oil                    0 bbl  × $ 62.63 =         $0
Casinghead gas        49 Mcf  × $  2.75 =       $135

────────────────────────────────────────────────────
Month total                                     $135

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/7991 is the state's own key, not one this site invented.