RIGGAN, J. M.

Operated by LEASE ROLLOVER OPERATIONS, INC. (P-5 491890) in the PEARSALL (OLMOS -A-) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 3177District 01Field 69981625OilCasinghead gasSaveExport
Value, all time
$422 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 34 wells, and the rule below applies to all of them.

Discovered
1962-11-20
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 40 acres.

The Commission's schedule remark for this field reads: 20 ACRES OP. 1500' DIAG

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
OilDisposition21,398 bbl$421,330
Casinghead gasProduction126 Mcf$285
Total$421,615

46 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 (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 28.8813, -99.0104. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

28.88033, -99.01105 · 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%
7 of 7 wells
With a plug date
100.0%
7 of 7 wells
Median depth
4,146 ft
7 wells filed one
Completion to plug
17.3 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
7100.0%
A plug date is filed
7100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
7100.0%
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

Between 4,102 and 5,800 ft, median 4,146 ft, over the 7 wells that filed a depth.

Completions filed
Nov 1962 – Dec 1996
4 of 7 wells; 3 filed none
Plug dates filed
Jan 1988 – May 2008
7 of 7 wells

Last completion to plug: a median of 17.3 years across the 4 wells that filed both dates, with the middle half between 8.8 years and 23.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

7 wells

42-1630114024,138 ftMay 2008Yes
42-1630114134,146 ftDec 1996Yes
42-1630140444,102 ftMay 2008Yes
42-1633323064,122 ftDec 1996May 2008Yes
42-163302561D5,800 ftOct 1987May 1988Yes
42-163200221W4,310 ftMay 1985May 2008Yes
42-1630113914,147 ftNov 1962Jan 1988Yes

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 200445132.455.51$1,466
Jan 20040032.036.30$0
Dec 2003136130.266.30$4,122
Nov 20030128.804.60$5
Oct 200319128.174.76$540
Sep 200380126.314.75$2,110
Aug 200381129.765.13$2,416
Jul 200356129.415.17$1,652
Jun 200365128.565.98$1,862
May 200378126.595.97$2,080
Apr 2003140126.675.41$3,739
Mar 2003152131.146.10$4,739
Feb 2003142133.487.93$4,762
Jan 200376130.315.58$2,309
Dec 2002196126.914.85$5,279
Nov 2002148124.664.14$3,654
Oct 2002155126.464.23$4,106
Sep 2002197127.443.64$5,409
Aug 20020125.963.16$3
Jul 2002154024.583.06$3,785
Jun 2002292023.733.34$6,929
May 2002211024.663.58$5,203
Apr 2002210023.653.51$4,967
Mar 2002333122.003.10$7,329
Feb 20020118.222.38$2
Jan 2002132117.172.38$2,269
Dec 2001210116.932.36$3,558
Nov 2001129118.072.41$2,333
Oct 2001189119.782.53$3,741
Sep 2001210124.262.25$5,097
Aug 20010124.873.05$3
Jul 2001120123.933.20$2,875
Jun 2001189124.563.82$4,646
May 2001139125.524.31$3,552
Apr 2001294124.685.34$7,261
Mar 2001197124.545.38$4,840
Feb 2001190127.755.77$5,278
Jan 2001133127.478.40$3,662
Dec 200063126.889.12$1,703
Nov 200068132.215.66$2,196
Oct 200058131.235.15$1,816
Sep 2000129131.875.19$4,116
Aug 2000134129.644.54$3,976
Jul 2000319128.534.09$9,105
Jun 2000197129.304.40$5,777
May 2000192127.263.68$5,238
Apr 2000129124.513.12$3,165
Mar 2000135128.422.86$3,840
Feb 200063127.622.73$1,743
Jan 2000262125.272.48$6,623
Dec 1999261124.282.42$6,340
Nov 1999209123.192.43$4,849
Oct 1999217120.982.80$4,555
Sep 1999206121.752.62$4,483
Aug 1999255119.262.88$4,914
Jul 1999139117.892.37$2,489
Jun 1999311115.942.36$4,960
May 199968115.792.32$1,076
Apr 1999141115.102.21$2,131
Mar 1999141112.471.84$1,760
Feb 199920719.981.82$2,068
Jan 1999316110.381.90$3,282
Dec 199840519.201.77$3,728
Nov 1998132110.892.19$1,440
Oct 1998209112.421.97$2,598
Sep 1998126112.592.08$1,588
Aug 1998206111.301.91$2,330
Jul 1998342111.742.24$4,017
Jun 1998202111.242.24$2,273
May 1998121112.622.21$1,529
Apr 1998121113.042.51$1,580
Mar 19980112.802.31$2
Feb 199868113.952.30$951
Jan 1998340114.702.15$5,000
Dec 1997215116.322.41$3,511
Nov 1997419118.193.09$7,625
Oct 1997192119.253.15$3,699
Sep 1997208117.742.95$3,693
Aug 1997280117.862.55$5,003
Jul 1997202117.582.25$3,553
Jun 19970017.242.26$0
May 1997204118.972.31$3,872
Apr 1997355117.882.08$6,349
Mar 1997429118.951.94$8,131
Feb 1997358120.492.21$7,338
Jan 1997242123.483.54$5,686
Dec 1996112123.32$2,612
Nov 1996227121.97$4,987
Oct 1996215123.31$5,012
Sep 1996248122.22$5,511
Aug 1996260120.26$5,268
Jul 1996251119.55$4,907
Jun 1996321118.73$6,012
May 199685119.43$1,652
Apr 199673121.51$1,570
Mar 1996139119.38$2,694
Feb 1996154116.98$2,615
Jan 199645017.07$768
Dec 1995107117.19$1,839
Nov 19950116.00$0
Oct 1995114115.43$1,759
Sep 199582116.18$1,327
Aug 1995111115.92$1,767
Jul 199532015.24$488
Jun 1995105116.41$1,723
May 1995112117.56$1,967
Apr 199538117.73$674
Mar 199530116.44$493
Feb 1995146116.58$2,421
Jan 1995137115.92$2,181
Dec 1994254115.03$3,818
Nov 1994195115.90$3,101
Oct 1994112115.58$1,745
Sep 1994128115.29$1,957
Aug 1994142116.13$2,290
Jul 1994179117.56$3,143
Jun 1994134117.09$2,290
May 199499115.88$1,572
Apr 199495114.14$1,343
Mar 1994131112.46$1,632
Feb 1994174112.50$2,175
Jan 1994107112.66$1,355
Dec 1993152112.33$1,874
Nov 199378114.49$1,130
Oct 1993118115.85$1,870
Sep 1993125115.03$1,879
Aug 1993160115.66$2,506
Jul 1993121115.46$1,871
Jun 1993124116.79$2,082
May 1993206117.68$3,642
Apr 1993163118.05$2,942
Mar 1993122118.14$2,213
Feb 1993195117.90$3,491
Jan 1993246116.93$4,165

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.

Feb 2004 — as filed, then multipliedworked
Oil                   45 bbl  × $ 32.45 =     $1,460
Casinghead gas         1 Mcf  × $  5.51 =         $6

────────────────────────────────────────────────────
Month total                                   $1,466

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/3177 is the state's own key, not one this site invented.