MANN, W.C. (SOUTH)

Operated by DUVAL MAPLE LEAF I, INC. (P-5 236590) in the EDR (COLE) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 12560District 04Field 26938075OilCasinghead gasSaveExport
Value, all time
$3.5 M
Apr 1996 – May 2026
Value, last 12 filed months
$0
at the published price for each month
Months reported
362
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 8 leases and 15 wells, and the rule below applies to all of them.

Discovered
1995-08-21
as the register files it
Field class
Oil and gas
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 20 acres. The field rule took effect on 1995-11-07.

The Commission's schedule remark for this field reads: AOF-1 AND AOF-2 EFFECTIVE 10/01/97.

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
OilDisposition147,023 bbl$3,462,483
Casinghead gasProduction30,623 Mcf$38,905
Total$3,501,388

15,289 Mcf of this lease's gas, across 9 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 27.3718, -98.4851. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

27.37170, -98.48492 · 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
100.0%
3 of 3 wells
Median depth
4,460 ft
3 wells filed one
Completion to plug
25.4 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
3100.0%
A plug date is filed
3100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
3100.0%
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 4,460 and 4,460 ft, median 4,460 ft, over the 3 wells that filed a depth.

Completions filed
Apr 1996 – Oct 1996
3 of 3 wells
Plug dates filed
Dec 2021
3 of 3 wells

Last completion to plug: a median of 25.4 years across the 3 wells that filed both dates, with the middle half between 25.3 years and 25.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-1313812794,460 ftOct 1996Dec 2021Yes
42-1313811184,460 ftJul 1996Dec 2021Yes
42-1313807454,460 ftApr 1996Dec 2021Yes

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 (362)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

362 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 2016163042.521.99$6,931
Apr 20160036.561.99$0
Mar 201695033.011.79$3,136
Feb 2016177026.472.06$4,685
Jan 20160027.352.36$0
Dec 2015174032.362.00$5,631
Nov 201562038.792.17$2,405
Oct 2015156043.552.43$6,794
Sep 20150042.992.76$0
Aug 2015155040.162.87$6,225
Jul 2015105048.152.95$5,056
Jun 2015174056.152.88$9,770
May 20150055.212.96$0
Apr 2015152049.822.71$7,573
Mar 2015443042.892.93$19,000
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 201465096.564.18$6,276
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 2014111095.944.81$10,649
Mar 2014135095.895.06$12,945
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 2013100093.964.28$9,396
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 201375091.603.42$6,870
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 201270092.662.91$6,486
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 2011379085.644.18$32,458
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 2006174054.207.62$9,431
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 2006178069.376.34$12,348
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 2006180064.397.36$11,590
Mar 2006175056.707.08$9,923
Feb 2006180057.597.75$10,366
Jan 2006178060.598.93$10,785
Dec 2005364054.9413.42$19,998
Nov 2005175054.6910.59$9,571
Oct 2005364058.3413.80$21,236
Sep 2005355061.4512.08$21,815
Aug 2005361061.519.80$22,205
Jul 2005179055.697.84$9,969
Jun 2005175052.337.38$9,158
May 2005539045.226.65$24,374
Apr 2005359049.207.36$17,663
Mar 2005543050.377.15$27,351
Feb 2005544045.226.31$24,600
Jan 2005366043.166.32$15,797
Dec 2004730039.866.75$29,098
Nov 2004542045.286.33$24,542
Oct 2004513049.706.52$25,496
Sep 2004541043.245.28$23,393
Aug 2004531042.375.55$22,498
Jul 2004533038.286.08$20,403
Jun 2004710036.106.43$25,631
May 2004727037.486.49$27,248
Apr 2004544034.475.86$18,752
Mar 2004546034.365.53$18,761
Feb 2004729032.455.51$23,656
Jan 2004733032.036.30$23,478
Dec 2003732030.266.30$22,150
Nov 2003538028.804.60$15,494
Oct 2003720028.174.76$20,282
Sep 2003543026.314.75$14,286
Aug 2003723029.765.13$21,516
Jul 2003723029.415.17$21,263
Jun 2003543028.565.98$15,508
May 2003720026.595.97$19,145
Apr 2003725026.675.41$19,336
Mar 2003730031.146.10$22,732
Feb 2003729033.487.93$24,407
Jan 2003727030.315.58$22,035
Dec 2002728026.914.85$19,590
Nov 2002726024.664.14$17,903
Oct 2002905026.464.23$23,946
Sep 2002903027.443.64$24,778
Aug 2002715025.963.16$18,561
Jul 2002351024.583.06$8,628
Jun 2002708023.733.34$16,801
May 20021,073024.663.58$26,460
Apr 2002907023.653.51$21,451
Mar 2002907022.003.10$19,954
Feb 2002724018.222.38$13,191
Jan 2002911017.172.38$15,642
Dec 2001906016.932.36$15,339
Nov 2001543018.072.41$9,812
Oct 2001716019.782.53$14,162
Sep 2001863024.262.25$20,936
Aug 2001524024.873.05$13,032
Jul 2001897023.933.20$21,465
Jun 2001900024.563.82$22,104
May 2001906025.524.31$23,121
Apr 2001972024.685.34$23,989
Mar 20011,101024.545.38$27,019
Feb 2001547027.755.77$15,179
Jan 2001880027.478.40$24,174
Dec 2000729026.889.12$19,596
Nov 2000732032.215.66$23,578
Oct 2000906031.235.15$28,294
Sep 2000717031.875.19$22,851
Aug 2000719029.644.54$21,311
Jul 2000810028.534.09$23,109
Jun 2000538029.304.40$15,763
May 2000708027.263.68$19,300
Apr 20001,093024.513.12$26,789
Mar 2000361028.422.86$10,260
Feb 2000739027.622.73$20,411
Jan 2000910025.272.48$22,996
Dec 1999365024.282.42$8,862
Nov 19990023.192.43$0
Oct 1999179020.982.80$3,755
Sep 1999910021.752.62$19,793
Aug 1999368019.262.88$7,088
Jul 19990017.892.37$0
Jun 1999530015.942.36$8,448
May 1999538015.792.32$8,495
Apr 19990015.102.21$0
Mar 1999370012.471.84$4,614
Feb 199974409.981.82$7,425
Jan 1999369010.381.90$3,830
Dec 199891409.201.77$8,409
Nov 1998923010.892.19$10,051
Oct 1998716012.421.97$8,893
Sep 1998875012.592.08$11,016
Aug 1998704011.301.91$7,955
Jul 19981,219011.742.24$14,311
Jun 1998542011.242.24$6,092
May 19981,39645412.622.21$18,619
Apr 19981,42948413.042.51$19,847
Mar 19981,78370912.802.31$24,460
Feb 19981,81163413.952.30$26,721
Jan 19982,19970614.702.15$33,847
Dec 19972,89453616.322.41$48,522
Nov 19972,89579618.193.09$55,118
Oct 19972,9431,12419.253.15$60,193
Sep 19972,2501,16717.742.95$43,363
Aug 19974,120017.862.55$73,583
Jul 19973,427017.582.25$60,247
Jun 19973,947017.242.26$68,046
May 19974,4451,78018.972.31$88,431
Apr 19974,1771,73317.882.08$78,294
Mar 19974,5791,70218.951.94$90,072
Feb 19974,0591,57820.492.21$86,650
Jan 19974,6471,93123.483.54$115,947
Dec 19964,8952,19723.32$114,151
Nov 19964,6021,84521.97$101,106
Oct 19965,2692,32023.31$122,820
Sep 19964,6832,91722.22$104,056
Aug 19964,1342,40320.26$83,755
Jul 19962,32293319.55$45,395
Jun 19961,89597518.73$35,493
May 19962,3231,18019.43$45,136
Apr 19961,64651921.51$35,405

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 2016 — as filed, then multipliedworked
Oil                  163 bbl  × $ 42.52 =     $6,931
Casinghead gas         0 Mcf  × $  1.99 =         $0

────────────────────────────────────────────────────
Month total                                   $6,931

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. 04/O/12560 is the state's own key, not one this site invented.