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MAYO

Operated by ARCH OPERATING, LLC (P-5 29271) in the CLAY COUNTY REGULAR field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 13441District 09Field 18707001OilCasinghead gasSaveExport
Value, all time
$285 k
Jan 1993 – May 2026
Value, last 12 filed months
$2 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The CLAY COUNTY REGULAR 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 615 leases and 2,793 wells, and the rule below applies to all of them.

Discovered
1902-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
—
no field rule filed
From a lease line
—
no field rule filed

The Commission's schedule remark for this field reads: “ENTITY FOR DENSITY APPROVED 3/17/98”

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
OilDisposition10,589 bbl$285,097
Casinghead gasProduction119 Mcf$228
Total$285,325

47 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 (7)

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 33.9840, -98.2185. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

33.98410, -98.21872 · 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
42.9%
3 of 7 wells
With a plug date
42.9%
3 of 7 wells
Median depth
782 ft
4 wells filed one
Completion to plug
12.8 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
342.9%
A plug date is filed
342.9%
BothOn the schedule and plugged. Neither fact cancels the other.
342.9%
NeitherNo plug date, and not on the schedule.
457.1%

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 510 and 924 ft, median 782 ft, over the 4 wells that filed a depth.

Completions filed
Apr 1977 – May 1993
4 of 7 wells; 3 filed none
Plug dates filed
Jan 1985 – Feb 2006
3 of 7 wells; 4 filed none

Last completion to plug: a median of 12.8 years across the 3 wells that filed both dates, with the middle half between 10.3 years and 19.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

7 wells

42-077816592————
42-077816603————
42-077816614————
42-077344259924 ftMay 1993Feb 2006Yes
42-077337737754 ftJun 1985——
42-077816571810 ftMay 1977Aug 2003Yes
42-077816581 D510 ftApr 1977Jan 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 202534066.743.32$2,269
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 202535062.363.54$2,183
Mar 20250067.704.27$0
Feb 202537070.884.34$2,623
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 202467069.052.20$4,626
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 202475075.632.06$5,672
Jul 20240079.932.15$0
Jun 202438078.082.63$2,967
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 202478073.023.30$5,696
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 202374085.443.09$6,323
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 202264085.005.65$5,440
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 2022650109.378.43$7,109
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 202197060.362.76$5,855
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 201547049.822.71$2,342
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 201482095.895.06$7,863
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 201343091.603.42$3,939
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 201251079.822.52$4,071
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 201149095.723.31$4,690
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 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 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 200958074.593.75$4,326
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 2009114066.163.90$7,542
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 200856037.105.98$2,078
Nov 200889055.496.86$4,939
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 2008580110.3110.45$6,398
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 200758082.856.92$4,805
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 200761056.927.30$3,472
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 200665064.397.36$4,185
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 200543055.697.84$2,395
Jun 200536052.337.38$1,884
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 200599043.166.32$4,273
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 2004106042.375.55$4,491
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 200446032.036.30$1,473
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20033026.595.97$80
Apr 20030026.675.41$0
Mar 200390031.146.10$2,803
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 20020126.914.85$5
Nov 20020124.664.14$4
Oct 20020126.464.23$4
Sep 20020127.443.64$4
Aug 200268125.963.16$1,768
Jul 200256124.583.06$1,380
Jun 20020123.733.34$3
May 20020124.663.58$4
Apr 2002129123.653.51$3,054
Mar 20020122.003.10$3
Feb 200256118.222.38$1,023
Jan 20020117.172.38$2
Dec 2001119116.932.36$2,017
Nov 20010118.072.41$2
Oct 20010119.782.53$3
Sep 2001126124.262.25$3,059
Aug 20010124.873.05$3
Jul 20010123.933.20$3
Jun 200166124.563.82$1,625
May 20010125.524.31$4
Apr 2001116124.685.34$2,868
Mar 20010124.545.38$5
Feb 200194127.755.77$2,614
Jan 20010127.478.40$8
Dec 20000126.889.12$9
Nov 200095132.215.66$3,066
Oct 20000131.235.15$5
Sep 200097131.875.19$3,097
Aug 20000129.644.54$5
Jul 2000106128.534.09$3,028
Jun 20000129.304.40$4
May 200094127.263.68$2,566
Apr 20000124.513.12$3
Mar 2000114128.422.86$3,243
Feb 20000127.622.73$3
Jan 2000102125.272.48$2,580
Dec 19990124.282.42$2
Nov 1999113123.192.43$2,623
Oct 19990120.982.80$3
Sep 199973121.752.62$1,590
Aug 19990119.262.88$3
Jul 1999100117.892.37$1,791
Jun 19990115.942.36$2
May 19990115.792.32$2
Apr 19990115.102.21$2
Mar 1999101112.471.84$1,261
Feb 1999019.981.82$2
Jan 1999127110.381.90$1,320
Dec 1998019.201.77$2
Nov 1998132110.892.19$1,440
Oct 19980112.421.97$2
Sep 199890112.592.08$1,135
Aug 19980111.301.91$2
Jul 1998132111.742.24$1,552
Jun 19980111.242.24$2
May 1998133112.622.21$1,681
Apr 1998116113.042.51$1,515
Mar 19980112.802.31$2
Feb 1998122113.952.30$1,704
Jan 19980114.702.15$2
Dec 199755116.322.41$900
Nov 199763118.193.09$1,149
Oct 199762119.253.15$1,197
Sep 199795117.742.95$1,688
Aug 199779117.862.55$1,413
Jul 199760117.582.25$1,057
Jun 199748117.242.26$830
May 199768118.972.31$1,292
Apr 1997103117.882.08$1,844
Mar 199763118.951.94$1,196
Feb 199785120.492.21$1,744
Jan 199747123.483.54$1,107
Dec 1996105123.32—$2,449
Nov 199655121.97—$1,208
Oct 199662123.31—$1,445
Sep 199690122.22—$2,000
Aug 199681120.26—$1,641
Jul 1996130119.55—$2,542
Jun 1996119118.73—$2,229
May 199682119.43—$1,593
Apr 199684121.51—$1,807
Mar 199698119.38—$1,899
Feb 1996131116.98—$2,224
Jan 199687017.07—$1,485
Dec 199552117.19—$894
Nov 1995101116.00—$1,616
Oct 1995109115.43—$1,682
Sep 199576116.18—$1,230
Aug 199568115.92—$1,083
Jul 199564115.24—$975
Jun 1995106116.41—$1,739
May 199582117.56—$1,440
Apr 199571117.73—$1,259
Mar 199594116.44—$1,545
Feb 199584116.58—$1,393
Jan 1995105115.92—$1,672
Dec 199490115.03—$1,353
Nov 1994104115.90—$1,654
Oct 199489115.58—$1,387
Sep 1994119115.29—$1,820
Aug 1994124116.13—$2,000
Jul 199476117.56—$1,335
Jun 1994124117.09—$2,119
May 1994117115.88—$1,858
Apr 1994170114.14—$2,404
Mar 1994115112.46—$1,433
Feb 1994100112.50—$1,250
Jan 1994178112.66—$2,253
Dec 1993104112.33—$1,282
Nov 1993122114.49—$1,768
Oct 1993124115.85—$1,965
Sep 1993197115.03—$2,961
Aug 1993123115.66—$1,926
Jul 1993125115.46—$1,933
Jun 1993113116.79—$1,897
May 1993125117.68—$2,210
Apr 1993126118.05—$2,274
Mar 1993210118.14—$3,809
Feb 1993127117.90—$2,273
Jan 1993128116.93—$2,167

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.

Jul 2025 — as filed, then multipliedworked
Oil                   34 bbl  × $ 66.74 =     $2,269
Casinghead gas         0 Mcf  × $  3.32 =         $0

────────────────────────────────────────────────────
Month total                                   $2,269

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. 09/O/13441 is the state's own key, not one this site invented.