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GULF CHAMBERS FEE

Operated by DRUM OIL & GAS, INC. (P-5 229352) in the LIBERTY, SOUTH field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 16527District 03Field 53498001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$1.0 M
Jan 1993 – May 2026
Value, last 12 filed months
$156 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The LIBERTY, SOUTH 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 other leases, and the rule below applies to all of them.

Discovered
1925-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
0 ft
minimum

A drilling unit in this field needs at least 0 acres.

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: “THIS IS A PIERCEMENT TYPE SALT DOME.”

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
OilDisposition28,766 bbl$1,023,419
Casinghead gasProduction4,973 Mcf$55
Total$1,023,474

4,950 Mcf of this lease's gas, across 47 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 (19)

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 30.0232, -94.8030. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

30.02329, -94.80308 · 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
5.3%
1 of 19 wells
With a plug date
5.3%
1 of 19 wells
Median depth
814 ft
19 wells filed one
Completion to plug
2.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
15.3%
A plug date is filed
15.3%
BothOn the schedule and plugged. Neither fact cancels the other.
15.3%
NeitherNo plug date, and not on the schedule.
1894.7%

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, 19 of 19 wells. Median 814 ft, with the middle half between 785 and 832 ft; the shallowest is 710 ft and the deepest 874 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 19 wells, Apr 1983 – Apr 2026. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Apr 1983 – Apr 2026
18 of 19 wells; 1 filed none
Plug dates filed
Jan 1986
1 of 19 wells; 18 filed none

Last completion to plug: a median of 2.8 years across the 1 well that filed both dates, with the middle half between 2.8 years and 2.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

19 wells

42-2913223714800 ft———
42-2913296520819 ftApr 2026——
42-2913296419815 ftApr 2025——
42-2913296318866 ftNov 2024——
42-2913243117719 ftApr 2002——
42-2913241116710 ftNov 2001——
42-2913241015745 ftNov 2001——
42-2913211513776 ftMay 1991——
42-2913206412786 ftApr 1989——
42-2913202611874 ftJul 1988——
42-291320029830 ftMar 1987——
42-291319958812 ftFeb 1987——
42-291319851AR792 ftMay 1986——
42-291319797783 ftFeb 1986——
42-291319366835 ftJan 1986——
42-291318975814 ftMay 1985——
42-291318724834 ftMar 1985——
42-291315992849 ftJun 1983——
42-291315981819 ftApr 1983Jan 1986Yes

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 20262990106.413.05$31,817
Apr 20260098.932.87$0
Mar 2026163089.753.15$14,629
Feb 2026156063.503.75$9,906
Jan 2026166059.138.00$9,816
Dec 2025322056.664.41$18,245
Nov 2025106058.593.93$6,211
Oct 2025172059.383.30$10,213
Sep 2025194062.743.08$12,172
Aug 2025317063.933.01$20,266
Jul 2025169066.743.32$11,279
Jun 2025175066.483.13$11,634
May 2025249060.553.23$15,077
Apr 2025307062.363.54$19,145
Mar 2025470067.704.27$31,819
Feb 2025352070.884.34$24,950
Jan 2025484074.324.28$35,971
Dec 2024550068.993.12$37,945
Nov 2024329069.052.20$22,717
Oct 202416071.372.28$1,142
Sep 2024102069.612.36$7,100
Aug 20240075.632.06$0
Jul 202434079.932.15$2,718
Jun 2024168078.082.63$13,117
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 2022132076.415.73$10,086
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 2021123077.435.24$9,524
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 202165060.362.76$3,923
Mar 2021111061.302.72$6,804
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 2020150038.772.71$5,816
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 201452098.164.74$5,104
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 201351091.824.35$4,683
Nov 201380088.853.74$7,108
Oct 201346097.423.78$4,481
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 201375094.403.93$7,080
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 201357091.233.42$5,200
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 2012128086.953.62$11,130
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 201237085.133.02$3,150
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 20121220101.652.00$12,401
Mar 201200105.052.22$0
Feb 201200101.102.57$0
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 20110083.404.15$0
Jul 20110094.144.52$0
Jun 201192092.904.64$8,547
May 20110098.134.40$0
Apr 201100105.964.33$0
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 20100073.684.42$0
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 2010118078.394.39$9,250
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 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 200983066.163.90$5,491
May 20090054.743.93$0
Apr 200994046.773.59$4,396
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 2008124037.105.98$4,600
Nov 2008145055.496.86$8,046
Oct 200881075.246.92$6,094
Sep 200800101.767.88$0
Aug 20081260114.228.48$14,392
Jul 200800131.0811.39$0
Jun 20081240131.3313.03$16,285
May 200800123.1711.57$0
Apr 20081540110.3110.45$16,988
Mar 20081500101.909.66$15,285
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 2007100088.337.30$8,833
Nov 20070091.677.29$0
Oct 200796082.856.92$7,954
Sep 200795075.846.24$7,205
Aug 2007106069.066.39$7,320
Jul 2007107070.906.39$7,586
Jun 2007178062.007.55$11,036
May 2007187058.747.85$10,984
Apr 20070059.617.81$0
Mar 2007127056.927.30$7,229
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 20050050.377.15$0
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 2003175028.804.60$5,040
Oct 20030028.174.76$0
Sep 2003179026.314.75$4,709
Aug 20030029.765.13$0
Jul 2003123029.415.17$3,617
Jun 2003179028.565.98$5,112
May 2003181026.595.97$4,813
Apr 2003555026.675.41$14,802
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 2002291026.464.23$7,700
Sep 2002917027.443.64$25,162
Aug 2002359025.963.16$9,320
Jul 2002189024.583.06$4,646
Jun 2002538023.733.34$12,767
May 2002879024.663.58$21,676
Apr 20020023.653.51$0
Mar 2002697022.003.10$15,334
Feb 2002889018.222.38$16,198
Jan 2002832017.172.38$14,285
Dec 20011,243016.932.36$21,044
Nov 2001174018.072.41$3,144
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 20010025.524.31$0
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 20000031.235.15$0
Sep 20000031.875.19$0
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 20000127.263.68$4
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 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990115.102.21$2
Mar 19990112.471.84$2
Feb 1999019.981.82$2
Jan 19990010.381.90$0
Dec 1998019.201.77$2
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 1998156112.592.08$1,966
Aug 19980111.301.91$2
Jul 19980111.742.24$2
Jun 19980111.242.24$2
May 19980112.622.21$2
Apr 19980113.042.51$3
Mar 19980112.802.31$2
Feb 19980113.952.30$2
Jan 19980014.702.15$0
Dec 19970116.322.41$2
Nov 19970118.193.09$3
Oct 19970119.253.15$3
Sep 19970117.742.95$3
Aug 1997137117.862.55$2,449
Jul 19970117.582.25$2
Jun 1997151017.242.26$2,603
May 19970018.972.31$0
Apr 19970117.882.08$2
Mar 1997173118.951.94$3,280
Feb 19970120.492.21$2
Jan 19970123.483.54$4
Dec 1996165123.32—$3,848
Nov 19960121.97—$0
Oct 1996149123.31—$3,473
Sep 1996172122.22—$3,822
Aug 1996166120.26—$3,363
Jul 19960119.55—$0
Jun 1996163118.73—$3,053
May 19960119.43—$0
Apr 1996164121.51—$3,528
Mar 1996171019.38—$3,314
Feb 199601016.98—$0
Jan 19961712017.07—$2,919
Dec 199504017.19—$0
Nov 19951589016.00—$2,528
Oct 19951579015.43—$2,423
Sep 19952929016.18—$4,725
Aug 19951699015.92—$2,690
Jul 19953309015.24—$5,029
Jun 19951719016.41—$2,806
May 199550718017.56—$8,903
Apr 19951716017.73—$3,032
Mar 19951749016.44—$2,861
Feb 19951699016.58—$2,802
Jan 199551319015.92—$8,167
Dec 199408015.03—$0
Nov 199434214015.90—$5,438
Oct 199417112015.58—$2,664
Sep 199417114015.29—$2,615
Aug 199433914016.13—$5,468
Jul 199416814017.56—$2,950
Jun 199417114017.09—$2,922
May 199433320015.88—$5,288
Apr 199416910014.14—$2,390
Mar 199416913012.46—$2,106
Feb 199434123012.50—$4,263
Jan 199417710012.66—$2,241
Dec 19931769012.33—$2,170
Nov 199317012014.49—$2,463
Oct 199333818015.85—$5,357
Sep 199334119015.03—$5,125
Aug 199333917015.66—$5,309
Jul 199351519015.46—$7,962
Jun 199333817016.79—$5,675
May 199333116017.68—$5,852
Apr 199334021018.05—$6,137
Mar 199351128018.14—$9,270
Feb 199351730017.90—$9,254
Jan 1993334116.93—$5,655

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.

May 2026 — as filed, then multipliedworked
Oil                  299 bbl  × $106.41 =    $31,817
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $31,817

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. 03/O/16527 is the state's own key, not one this site invented.