GUITAR TRUST ESTATE

Operated by P4 OPERATING, LLC (P-5 631638) in the VAREL (SAN ANDRES) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 8660District 08Field 93233333OilCasinghead gasSaveExport
Value, all time
$244 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 79 leases and 216 wells, and the rule below applies to all of them.

Discovered
1955-02-14
as the register files it
Field class
Oil
the register's own label
Between wells
300 ft
minimum
From a lease line
150 ft
minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 2001-12-20.

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
OilDisposition10,076 bbl$243,340
Casinghead gasProduction226 Mcf$368
Total$243,708

130 Mcf of this lease's gas, across 46 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 (3)

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 32.1163, -101.7928. A lease has no coordinate of its own — that point is the mean of its wells, and they span 43.4 miles, so treat it as the lease's centre and not as its location.

32.01272, -101.87445 · 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%
3 of 3 wells
With a plug date
66.7%
2 of 3 wells
Median depth
5,935 ft
2 wells filed one
Completion to plug
4.9 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
3100.0%
A plug date is filed
266.7%
BothOn the schedule and plugged. Neither fact cancels the other.
266.7%
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

Between 3,220 and 8,650 ft, median 5,935 ft, over the 2 wells that filed a depth.

Completions filed
Jan 1981
1 of 3 wells; 2 filed none
Plug dates filed
Dec 1985 – Dec 1988
2 of 3 wells; 1 filed none

Last completion to plug: a median of 4.9 years across the 1 well that filed both dates, with the middle half between 4.9 years and 4.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-227039441Yes
42-2270394733,220 ftDec 1988Yes
42-3293093318,650 ftJan 1981Dec 1985Yes

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 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
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 20180065.382.90$0
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 20170049.292.98$0
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 20160042.521.99$0
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 20140070.464.25$0
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 20130094.834.15$0
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 201200101.102.57$0
Jan 2012162098.092.73$15,891
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 20111340105.964.33$14,199
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 2010151073.684.42$11,126
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
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 2009161065.543.06$10,552
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 20090042.144.06$0
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 200800101.767.88$0
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 20080092.538.77$0
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 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 2005155050.377.15$7,807
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040139.866.75$7
Nov 20040145.286.33$6
Oct 20040149.706.52$7
Sep 2004150143.245.28$6,491
Aug 20040142.375.55$6
Jul 20040138.286.08$6
Jun 20040136.106.43$6
May 2004145137.486.49$5,441
Apr 20040134.475.86$6
Mar 20040134.365.53$6
Feb 20040132.455.51$6
Jan 2004137132.036.30$4,394
Dec 20030130.266.30$6
Nov 20030128.804.60$5
Oct 20030128.174.76$5
Sep 20030126.314.75$5
Aug 20030129.765.13$5
Jul 20030129.415.17$5
Jun 20030128.565.98$6
May 2003145126.595.97$3,862
Apr 20030126.675.41$5
Mar 20030131.146.10$6
Feb 20030133.487.93$8
Jan 2003126130.315.58$3,825
Dec 20020126.914.85$5
Nov 20020124.664.14$4
Oct 20020126.464.23$4
Sep 20020127.443.64$4
Aug 2002153125.963.16$3,975
Jul 20020124.583.06$3
Jun 20020123.733.34$3
May 2002156124.663.58$3,851
Apr 20020123.653.51$4
Mar 20020122.003.10$3
Feb 20020118.222.38$2
Jan 20020117.172.38$2
Dec 2001169116.932.36$2,864
Nov 20010118.072.41$2
Oct 20010119.782.53$3
Sep 20010124.262.25$2
Aug 2001175124.873.05$4,355
Jul 20010123.933.20$3
Jun 20010124.563.82$4
May 20010125.524.31$4
Apr 2001157124.685.34$3,880
Mar 20010124.545.38$5
Feb 2001146127.755.77$4,057
Jan 20010127.478.40$8
Dec 20000126.889.12$9
Nov 20000132.215.66$6
Oct 20000131.235.15$5
Sep 20000131.875.19$5
Aug 2000180129.644.54$5,340
Jul 20000128.534.09$4
Jun 20000129.304.40$4
May 20000127.263.68$4
Apr 20000124.513.12$3
Mar 20000128.422.86$3
Feb 20000127.622.73$3
Jan 20000125.272.48$2
Dec 19990124.282.42$2
Nov 19990123.192.43$2
Oct 1999158120.982.80$3,318
Sep 19990121.752.62$3
Aug 19990119.262.88$3
Jul 1999129117.892.37$2,310
Jun 1999143115.942.36$2,282
May 19990115.792.32$2
Apr 19990115.102.21$2
Mar 19990112.471.84$2
Feb 1999019.981.82$2
Jan 19990110.381.90$2
Dec 199816519.201.77$1,520
Nov 19980110.892.19$2
Oct 19980112.421.97$2
Sep 1998149112.592.08$1,878
Aug 19980111.301.91$2
Jul 1998156111.742.24$1,834
Jun 19980111.242.24$2
May 1998163112.622.21$2,059
Apr 19980113.042.51$3
Mar 19980112.802.31$2
Feb 19980113.952.30$2
Jan 1998156114.702.15$2,295
Dec 19970116.322.41$2
Nov 19970118.193.09$3
Oct 19970119.253.15$3
Sep 1997149117.742.95$2,646
Aug 19970117.862.55$3
Jul 19970117.582.25$2
Jun 1997334117.242.26$5,760
May 19970118.972.31$2
Apr 19970117.882.08$2
Mar 1997167118.951.94$3,167
Feb 19970120.492.21$2
Jan 19970123.483.54$4
Dec 1996156123.32$3,638
Nov 19960121.97$0
Oct 1996159123.31$3,706
Sep 19960122.22$0
Aug 1996154120.26$3,120
Jul 19960119.55$0
Jun 19960118.73$0
May 1996116119.43$2,254
Apr 19960121.51$0
Mar 19960119.38$0
Feb 1996148116.98$2,513
Jan 19960117.07$0
Dec 1995128117.19$2,200
Nov 19950116.00$0
Oct 1995153115.43$2,361
Sep 19950116.18$0
Aug 1995152115.92$2,420
Jul 1995150115.24$2,286
Jun 19950116.41$0
May 1995150117.56$2,634
Apr 1995170117.73$3,014
Mar 1995156116.44$2,565
Feb 1995157116.58$2,603
Jan 19950115.92$0
Dec 1994169115.03$2,540
Nov 1994156015.90$2,480
Oct 19940015.58$0
Sep 1994175515.29$2,676
Aug 1994158516.13$2,549
Jul 19940517.56$0
Jun 1994163517.09$2,786
May 1994179515.88$2,843
Apr 1994159514.14$2,248
Mar 1994154512.46$1,919
Feb 19940512.50$0
Jan 1994174512.66$2,203
Dec 1993175512.33$2,158
Nov 1993160514.49$2,318
Oct 1993175515.85$2,774
Sep 1993163515.03$2,450
Aug 1993322515.66$5,043
Jul 1993165515.46$2,551
Jun 19930516.79$0
May 1993346517.68$6,117
Apr 19930518.05$0
Mar 1993347518.14$6,295
Feb 19930517.90$0
Jan 1993156516.93$2,641

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 2012 — as filed, then multipliedworked
Oil                  162 bbl  × $ 98.09 =    $15,891
Casinghead gas         0 Mcf  × $  2.73 =         $0

────────────────────────────────────────────────────
Month total                                  $15,891

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/8660 is the state's own key, not one this site invented.