ROBERTS UNIT

Operated by ROOT DRILLING COMPANY (P-5 727095) in the MONKSFIELD (350 SAND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 10577District 01Field 62480500OilCasinghead gasSaveExport
Value, all time
$94 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 19 leases and 1,555 wells, and the rule below applies to all of them.

Discovered
1956-05-16
as the register files it
Field class
Oil
the register's own label
Between wells
100 ft
minimum
From a lease line
50 ft
minimum

A drilling unit in this field needs at least 0 acres. The field rule took effect on 1984-03-01.

The Commission's schedule remark for this field reads: RULE 2 - 1/2 ACRE OIL PRORATION UNITS

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
OilDisposition5,376 bbl$93,621
Casinghead gasProduction50 Mcf$21
Total$93,642

41 Mcf of this lease's gas, across 41 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 (101)

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 29.3141, -98.4646. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

29.31413, -98.46492 · 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%
101 of 101 wells
With a plug date
100.0%
101 of 101 wells
Median depth
440 ft
101 wells filed one
Completion to plug
18.6 years
median over 101 wells

What the state filed about each well

On the RRC proration schedule
101100.0%
A plug date is filed
101100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
101100.0%
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

Total depth in feet, 101 of 101 wells. Median 440 ft, with the middle half between 420 and 460 ft; the shallowest is 380 ft and the deepest 480 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, 101 of 101 wells, Sep 1985 – Nov 1986. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Sep 1985 – Nov 1986
101 of 101 wells
Plug dates filed
Jun 2004 – Aug 2004
101 of 101 wells

Last completion to plug: a median of 18.6 years across the 101 wells that filed both dates, with the middle half between 17.8 years and 18.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

101 wells

42-02937662M 1420 ftNov 1986Jul 2004Yes
42-02937669L 1420 ftNov 1986Jul 2004Yes
42-02937670K 1420 ftNov 1986Jul 2004Yes
42-02937684M 2420 ftNov 1986Jul 2004Yes
42-02937690P 1400 ftNov 1986Jul 2004Yes
42-02937691O 1420 ftNov 1986Jul 2004Yes
42-02937692N 1420 ftNov 1986Jul 2004Yes
42-02937671J 1440 ftNov 1986Jul 2004Yes
42-02937672I 1420 ftNov 1986Aug 2004Yes
42-02937685L 2420 ftNov 1986Jul 2004Yes
42-02937686K 2420 ftNov 1986Jul 2004Yes
42-02937660P 4400 ftNov 1986Jul 2004Yes
42-02937683B 3460 ftNov 1986Aug 2004Yes
42-02937687J 2440 ftNov 1986Jul 2004Yes
42-02937688I 2420 ftNov 1986Jul 2004Yes
42-02937689C 2460 ftNov 1986Aug 2004Yes
42-02937657O 7420 ftNov 1986Aug 2004Yes
42-02937658N 7420 ftNov 1986Aug 2004Yes
42-02937661O 4420 ftNov 1986Jul 2004Yes
42-02937663N 4420 ftNov 1986Jul 2004Yes
42-02937652Q 8380 ftNov 1986Aug 2004Yes
42-02937653P 8400 ftNov 1986Aug 2004Yes
42-02937654O 8420 ftNov 1986Aug 2004Yes
42-02937655N 8420 ftNov 1986Aug 2004Yes
42-02937656M 8420 ftNov 1986Aug 2004Yes
42-02937659O 6420 ftNov 1986Aug 2004Yes
42-02937674F 4440 ftNov 1986Aug 2004Yes
42-02937664M 4420 ftNov 1986Jul 2004Yes
42-02937665L 4420 ftNov 1986Jul 2004Yes
42-02937666K 4420 ftNov 1986Jul 2004Yes
42-02937677M 3420 ftNov 1986Jun 2004Yes
42-02937678L 3420 ftNov 1986Jul 2004Yes
42-02937679K 3420 ftNov 1986Jul 2004Yes
42-02937667J 4440 ftNov 1986Jul 2004Yes
42-02937668H 4440 ftNov 1986Aug 2004Yes
42-02937673G 4420 ftNov 1986Aug 2004Yes
42-02937675E 4460 ftNov 1986Aug 2004Yes
42-02937676B 4460 ftNov 1986Aug 2004Yes
42-02937680J 3440 ftNov 1986Jul 2004Yes
42-02937681I 3420 ftNov 1986Jul 2004Yes
42-02937682C 3460 ftNov 1986Aug 2004Yes
42-02936918P 7380 ftJan 1986Aug 2004Yes
42-02936923J 5440 ftJan 1986Jul 2004Yes
42-02936933H 5440 ftJan 1986Aug 2004Yes
42-02936916P 5400 ftJan 1986Jul 2004Yes
42-02936917P 6400 ftJan 1986Aug 2004Yes
42-02936920J 6440 ftJan 1986Aug 2004Yes
42-02936921K 6420 ftJan 1986Aug 2004Yes
42-02936922I 6440 ftJan 1986Aug 2004Yes
42-02936924G 7440 ftJan 1986Aug 2004Yes
42-02936925M 7400 ftJan 1986Aug 2004Yes
42-02936926H 7440 ftJan 1986Aug 2004Yes
42-02936927Q 6380 ftJan 1986Aug 2004Yes
42-02936928M 6420 ftJan 1986Aug 2004Yes
42-02936929I 7440 ftJan 1986Aug 2004Yes
42-02936930G 5420 ftJan 1986Aug 2004Yes
42-02936931H 6440 ftJan 1986Aug 2004Yes
42-02936932O 5420 ftJan 1986Jul 2004Yes
42-02936934I 5420 ftJan 1986Jul 2004Yes
42-02936908G 6460 ftDec 1985Aug 2004Yes
42-02936909L 6420 ftDec 1985Aug 2004Yes
42-02936905E 6460 ftDec 1985Aug 2004Yes
42-02936906F 6460 ftDec 1985Aug 2004Yes
42-02936898C 6460 ftDec 1985Aug 2004Yes
42-02936899D 6460 ftDec 1985Aug 2004Yes
42-02936904B 5460 ftNov 1985Aug 2004Yes
42-02936907B 6460 ftNov 1985Aug 2004Yes
42-02936894D 5460 ftNov 1985Aug 2004Yes
42-02936897C 5460 ftNov 1985Aug 2004Yes
42-02936895E 5460 ftNov 1985Aug 2004Yes
42-02936896F 5440 ftNov 1985Aug 2004Yes
42-02936902L 5420 ftNov 1985Jul 2004Yes
42-02936903K 5420 ftNov 1985Jul 2004Yes
42-02936900N 5420 ftNov 1985Jul 2004Yes
42-02936901M 5420 ftNov 1985Jul 2004Yes
42-02936681F 7440 ftSep 1985Aug 2004Yes
42-02936684C 7460 ftSep 1985Aug 2004Yes
42-02936685B 7460 ftSep 1985Aug 2004Yes
42-02936687J 8440 ftSep 1985Aug 2004Yes
42-02936688K 8440 ftSep 1985Aug 2004Yes
42-02936689I 8440 ftSep 1985Aug 2004Yes
42-02936690H 8440 ftSep 1985Aug 2004Yes
42-02936697A 3460 ftSep 1985Aug 2004Yes
42-02936686L 8420 ftSep 1985Aug 2004Yes
42-02936693A 6480 ftSep 1985Aug 2004Yes
42-02936694A 7480 ftSep 1985Aug 2004Yes
42-02936691F 8460 ftSep 1985Aug 2004Yes
42-02936692D 8460 ftSep 1985Aug 2004Yes
42-02936696B 8460 ftSep 1985Aug 2004Yes
42-02936678L 7420 ftSep 1985Aug 2004Yes
42-02936679K 7440 ftSep 1985Aug 2004Yes
42-02936680J 7440 ftSep 1985Aug 2004Yes
42-02936682D 7460 ftSep 1985Aug 2004Yes
42-02936683E 7460 ftSep 1985Aug 2004Yes
42-02936695A 5480 ftSep 1985Aug 2004Yes
42-02936631E 8460 ftSep 1985Aug 2004Yes
42-02936632A 2460 ftSep 1985Aug 2004Yes
42-02936633G 8460 ftSep 1985Aug 2004Yes
42-02936634C 8460 ftSep 1985Aug 2004Yes
42-02936635A 4460 ftSep 1985Aug 2004Yes
42-02936636A 8480 ftSep 1985Aug 2004Yes

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 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 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 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 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 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 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 20030026.595.97$0
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 200330030.315.58$909
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 200228023.733.34$664
May 20020024.663.58$0
Apr 200241023.653.51$970
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 200134024.563.82$835
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 200053028.534.09$1,512
Jun 20000029.304.40$0
May 200045027.263.68$1,227
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 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998019.201.77$2
Nov 19980110.892.19$2
Oct 19980112.421.97$2
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 1998144013.952.30$2,009
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 19970118.193.09$3
Oct 19970019.253.15$0
Sep 199782017.742.95$1,455
Aug 19970017.862.55$0
Jul 19970117.582.25$2
Jun 1997149017.242.26$2,569
May 19970018.972.31$0
Apr 19970117.882.08$2
Mar 1997106118.951.94$2,011
Feb 199759120.492.21$1,211
Jan 1997106123.483.54$2,492
Dec 19960123.32$0
Nov 19960121.97$0
Oct 1996225123.31$5,245
Sep 19960122.22$0
Aug 1996110020.26$2,229
Jul 19960119.55$0
Jun 1996153118.73$2,866
May 19960019.43$0
Apr 1996106021.51$2,280
Mar 19960119.38$0
Feb 1996124116.98$2,106
Jan 19960117.07$0
Dec 19950017.19$0
Nov 19950116.00$0
Oct 199557115.43$880
Sep 19950016.18$0
Aug 1995152015.92$2,420
Jul 19950115.24$0
Jun 19950116.41$0
May 1995166117.56$2,915
Apr 19950117.73$0
Mar 1995141116.44$2,318
Feb 19950116.58$0
Jan 1995134115.92$2,133
Dec 1994151115.03$2,270
Nov 19940115.90$0
Oct 1994143015.58$2,228
Sep 19940115.29$0
Aug 1994159116.13$2,565
Jul 19940117.56$0
Jun 1994151117.09$2,581
May 1994277115.88$4,399
Apr 1994172114.14$2,432
Mar 19940112.46$0
Feb 1994151112.50$1,888
Jan 19940112.66$0
Dec 19930112.33$0
Nov 1993158114.49$2,289
Oct 1993162115.85$2,568
Sep 1993313115.03$4,704
Aug 19930115.66$0
Jul 1993162115.46$2,505
Jun 1993161116.79$2,703
May 1993167117.68$2,953
Apr 1993168118.05$3,032
Mar 1993165118.14$2,993
Feb 1993301117.90$5,388
Jan 1993170116.93$2,878

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 2003 — as filed, then multipliedworked
Oil                   30 bbl  × $ 30.31 =       $909
Casinghead gas         0 Mcf  × $  5.58 =         $0

────────────────────────────────────────────────────
Month total                                     $909

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. 01/O/10577 is the state's own key, not one this site invented.