HEARD, FANNIE V. W., MRS.

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the TOM OCONNOR field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 1541District 02Field 90534001OilCasinghead gasSaveExport
Value, all time
$2.1 M
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 98 leases and 672 wells, and the rule below applies to all of them.

Discovered
1934-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
300 ft
minimum
From a lease line
150 ft
minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 2005-05-10.

The Commission's schedule remark for this field reads: AND FIELD CLASSIFIED AS SALVAGE.

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
OilDisposition59,820 bbl$1,742,912
Casinghead gasProduction119,664 Mcf$397,952
Total$2,140,864

1,137 Mcf of this lease's gas, across 22 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 (47)

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 28.3844, -97.1369. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.3 miles. 27 wells have no surveyed location and are left out of it.

28.38448, -97.13821 · centre of 20 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
93.6%
44 of 47 wells
With a plug date
4.3%
2 of 47 wells
Median depth
5,925 ft
23 wells filed one
Completion to plug
8.6 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
4493.6%
A plug date is filed
24.3%
BothOn the schedule and plugged. Neither fact cancels the other.
24.3%
NeitherNo plug date, and not on the schedule.
36.4%

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, 23 of 47 wells. Median 5,925 ft, with the middle half between 5,925 and 5,927 ft; the shallowest is 3,850 ft and the deepest 6,400 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, 20 of 47 wells, Dec 1973 – Sep 2022. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Dec 1973 – Sep 2022
20 of 47 wells; 27 filed none
Plug dates filed
Feb 2011 – Sep 2020
2 of 47 wells; 45 filed none

Last completion to plug: a median of 8.6 years across the 2 wells that filed both dates, with the middle half between 4.8 years and 12.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

47 wells

42-391805983 UYes
42-3918060010 U5,927 ftYes
42-3918060112 LYes
42-3918060213 LYes
42-3918060315Yes
42-3918060415 UYes
42-3918060517 LYes
42-3918060720 LYes
42-3918060822 LYes
42-3918060927Yes
42-3918061027 LYes
42-3918061129 LYes
42-3918061232 LYes
42-3918061333Yes
42-3918061433 LYes
42-3918061636Yes
42-3918061736 LYes
42-3918061837 UYes
42-3918061945 U5,925 ftYes
42-3918062047Yes
42-3918062148 LYes
42-3918062250 LYes
42-3918062353 U5,901 ftYes
42-3918062458 LYes
42-3918062559Yes
42-3918062659 LYes
42-3918062760 LYes
42-3910071062 L6,000 ftSep 2022Yes
42-39100685165,925 ftJun 2022Yes
42-391326721176,400 ftOct 2020Yes
42-39100564345,925 ftFeb 2020Yes
42-3910056030 L5,925 ftJan 2020Yes
42-391007323SG4,500 ftSep 2019Sep 2020Yes
42-3910069839 L5,925 ftAug 2016Yes
42-39100574575,927 ftJul 2016Yes
42-39100679105,927 ftJul 2015Yes
42-39100568465,923 ftJul 2012Yes
42-3910068819 L5,925 ftNov 2010Yes
42-3910067675,929 ftFeb 2007Yes
42-3910070142 L5,925 ftJan 2006Yes
42-3910056131 L5,925 ftAug 2005Yes
42-39100573565,926 ftApr 2004
42-391315771006,017 ftMar 1998Yes
42-3910067785,925 ftJan 1995Feb 2011Yes
42-3910070552 L5,900 ftOct 1990Yes
42-3913016513,850 ftJan 1986
42-39100571495,925 ftDec 1973

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 20212050.412.81$101
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20207137.091.99$262
Aug 202011239.982.39$445
Jul 20203038.371.83$115
Jun 20200034.901.69$0
May 20203016.921.81$51
Apr 202026314.751.80$389
Mar 2020871830.341.86$2,673
Feb 20201017049.881.98$5,177
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 20197162.632.75$441
Mar 201961656.803.06$3,483
Feb 201943350.852.79$2,195
Jan 201948746.033.23$2,232
Dec 201847946.594.19$2,227
Nov 201842652.934.24$2,248
Oct 201838761.443.40$2,359
Sep 2018381359.543.11$2,303
Aug 2018431059.403.07$2,585
Jul 2018431565.142.93$2,845
Jun 2018427660.183.08$2,761
May 2018584565.382.90$3,923
Apr 2018561563.842.90$3,619
Mar 2018461461.222.79$2,855
Feb 201855861.782.77$3,420
Jan 201862262.874.01$3,906
Dec 201756157.272.92$3,210
Nov 2017591455.423.12$3,313
Oct 20175049.292.98$246
Sep 20174047.523.09$190
Aug 201735445.373.00$1,600
Jul 201713043.873.09$570
Jun 201725542.493.09$1,078
May 2017991845.373.26$4,550
Apr 2017340047.933.21$16,296
Mar 2017621046.772.98$29,044
Feb 2017170350.452.95$8,585
Jan 2017104649.413.42$5,159
Dec 20161901548.763.72$9,320
Nov 201673742.492.64$3,120
Oct 2016962546.193.09$4,512
Sep 20161085441.553.10$4,655
Aug 20161224741.442.92$5,193
Jul 20161305541.622.92$5,571
Jun 20161531545.352.69$6,979
May 20161472142.521.99$6,292
Apr 20161996436.561.99$7,403
Mar 20162487033.011.79$8,312
Feb 20162492026.472.06$6,632
Jan 20163615527.352.36$10,003
Dec 20155714432.362.00$18,566
Nov 20155688738.792.17$22,221
Oct 201538338943.552.43$17,624
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 20151049.822.71$50
Mar 201520742.892.93$878
Feb 2015281244.662.98$1,286
Jan 201531743.433.10$1,368
Dec 201431754.693.59$1,721
Nov 201437570.464.25$2,628
Oct 201446778.303.90$3,629
Sep 2014611586.164.05$5,316
Aug 20141172289.394.04$10,547
Jul 20143101996.564.18$30,013
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 20111198.134.40$103
Apr 201100105.964.33$0
Mar 20114096.364.06$385
Feb 2011191485.644.18$1,686
Jan 2011372786.504.59$3,324
Dec 2010373985.734.35$3,342
Nov 2010423880.843.80$3,540
Oct 2010643878.103.51$5,132
Sep 2010634972.633.98$4,771
Aug 20106610573.684.42$5,327
Jul 20107011872.554.74$5,637
Jun 20107312270.364.91$5,735
May 201010110171.124.24$7,611
Apr 201011817981.694.12$10,377
Mar 201010520178.394.39$9,113
Feb 20107912373.585.44$6,482
Jan 201010958474.365.96$11,588
Dec 20099913671.445.48$7,818
Nov 20099613274.593.75$7,656
Oct 20098112372.544.11$6,381
Sep 20096310965.543.06$4,463
Aug 20093467.423.22$215
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 200981546.773.59$428
Mar 20096610242.144.06$3,195
Feb 2009669432.814.63$2,601
Jan 20098910835.865.37$3,772
Dec 20081078937.105.98$4,502
Nov 20081028955.496.86$6,271
Oct 2008919175.246.92$7,477
Sep 200885107101.767.88$9,492
Aug 2008116127114.228.48$14,327
Jul 2008107134131.0811.39$15,552
Jun 200892203131.3313.03$14,728
May 2008113137123.1711.57$15,504
Apr 2008100126110.3110.45$12,348
Mar 200861137101.909.66$7,540
Feb 20085322692.538.77$6,886
Jan 20088828490.388.21$10,284
Dec 200719332188.337.30$19,392
Nov 200719234391.677.29$20,102
Oct 200712117182.856.92$11,209
Sep 200712918175.846.24$10,914
Aug 200713417969.066.39$10,397
Jul 200715217770.906.39$11,907
Jun 200713616162.007.55$9,647
May 20071261,40658.747.85$18,433
Apr 200720216559.617.81$13,329
Mar 200719328456.927.30$13,059
Feb 200719646655.108.22$14,628
Jan 200717535750.306.73$11,204
Dec 200627146056.656.92$18,535
Nov 200632426854.207.62$19,602
Oct 20065054.906.01$275
Sep 20066940860.085.04$6,201
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 200516054.6910.59$690
Oct 2005124458.3413.80$1,307
Sep 20052061.4512.08$123
Aug 2005387861.519.80$3,102
Jul 2005428455.697.84$2,998
Jun 200517152.337.38$897
May 20050045.226.65$0
Apr 200536049.207.36$1,771
Mar 200563048650.377.15$35,210
Feb 200557319045.226.31$27,110
Jan 200516937043.166.32$9,633
Dec 200416949039.866.75$10,044
Nov 200416938345.286.33$10,077
Oct 200416925049.706.52$10,028
Sep 200420330543.245.28$10,389
Aug 200420068242.375.55$12,260
Jul 200421576338.286.08$12,872
Jun 200443152936.106.43$18,962
May 200422626737.486.49$10,205
Apr 200421553334.475.86$10,534
Mar 200419523034.365.53$7,972
Feb 200419329632.455.51$7,894
Jan 200420860432.036.30$10,467
Dec 200320547630.266.30$9,203
Nov 200320436128.804.60$7,534
Oct 200321874928.174.76$9,706
Sep 200321718426.314.75$6,583
Aug 200329534129.765.13$10,528
Jul 200322442029.415.17$8,760
Jun 200330951828.565.98$11,924
May 200345027526.595.97$13,608
Apr 200355320026.675.41$15,830
Mar 200340258231.146.10$16,066
Feb 200333841433.487.93$14,598
Jan 200336672630.315.58$15,146
Dec 20023801,36126.914.85$16,832
Nov 200235298624.664.14$12,759
Oct 20023841,72126.464.23$17,439
Sep 200246454227.443.64$14,702
Aug 200248983525.963.16$15,337
Jul 200232869524.583.06$10,190
Jun 20024142,47923.733.34$18,100
May 200257112224.663.58$14,518
Apr 200250591923.653.51$15,171
Mar 20024758922.003.10$10,726
Feb 20024851,19718.222.38$11,680
Jan 200252583817.172.38$11,005
Dec 20014602,30316.932.36$13,233
Nov 200147522418.072.41$9,122
Oct 200150947619.782.53$11,272
Sep 20018973924.262.25$21,849
Aug 20013669424.873.05$3,014
Jul 200147170523.933.20$13,525
Jun 200143743224.563.82$12,385
May 200149124025.524.31$13,564
Apr 200144757124.685.34$14,078
Mar 200148780124.545.38$16,258
Feb 200144937027.755.77$14,594
Jan 20014661,03127.478.40$21,460
Dec 200040445226.889.12$14,983
Nov 200045320032.215.66$15,723
Oct 200046534431.235.15$16,292
Sep 20004245631.875.19$13,803
Aug 20004782,51029.644.54$25,565
Jul 200040772528.534.09$14,577
Jun 200042547229.304.40$14,528
May 200047541827.263.68$14,487
Apr 200048788524.513.12$14,694
Mar 20006171,42728.422.86$21,616
Feb 200076697527.622.73$23,815
Jan 20007471,07125.272.48$21,533
Dec 19996601,70824.282.42$20,165
Nov 19991,1041,64823.192.43$29,613
Oct 19991,1021,63920.982.80$27,715
Sep 199981889521.752.62$20,135
Aug 19997742,90119.262.88$23,249
Jul 19998403,76617.892.37$23,962
Jun 19998734,09915.942.36$23,598
May 19991,1284,01015.792.32$27,118
Apr 19999532,98915.102.21$20,990
Mar 19991,1743,54012.471.84$21,147
Feb 19991,2354,0559.981.82$19,696
Jan 19991,4823,79010.381.90$22,584
Dec 19981,6044,0779.201.77$21,987
Nov 19981,5564,88610.892.19$27,624
Oct 19981,5554,99412.421.97$29,147
Sep 19981,5413,90012.592.08$27,523
Aug 19981,3454,58011.301.91$23,934
Jul 19981,3006,62011.742.24$30,073
Jun 19988231,18111.242.24$11,893
May 1998575712.622.21$845
Apr 1998745813.042.51$1,110
Mar 19985642512.802.31$1,698
Feb 199819335813.952.30$3,515
Jan 199871014.702.15$124
Dec 19970016.322.41$0
Nov 19975618.193.09$109
Oct 19975419.253.15$109
Sep 19975117.742.95$92
Aug 199761117.862.55$135
Jul 19976817.582.25$123
Jun 1997295817.242.26$631
May 199751318.972.31$125
Apr 19975617.882.08$102
Mar 199751318.951.94$120
Feb 19975920.492.21$122
Jan 19975623.483.54$139
Dec 19965823.32$117
Nov 199651021.97$110
Oct 199651023.31$117
Sep 19966922.22$133
Aug 19966620.26$122
Jul 19966919.55$117
Jun 19966818.73$112
May 19966719.43$117
Apr 19966721.51$129
Mar 199661819.38$116
Feb 199651016.98$85
Jan 19965717.07$85
Dec 19953517.19$52
Nov 19955916.00$80
Oct 19954615.43$62
Sep 19958516.18$129
Aug 19954415.92$64
Jul 19955315.24$76
Jun 19950416.41$0
May 19950017.56$0
Apr 19950017.73$0
Mar 1995351516.44$575
Feb 199523810016.58$3,946
Jan 1995587715.92$80
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940017.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19940012.46$0
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930012.33$0
Nov 19930014.49$0
Oct 19930015.85$0
Sep 19930015.03$0
Aug 19930015.66$0
Jul 19930015.46$0
Jun 19930016.79$0
May 19930017.68$0
Apr 19930018.05$0
Mar 19930018.14$0
Feb 19930017.90$0
Jan 19930016.93$0

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 2021 — as filed, then multipliedworked
Oil                    2 bbl  × $ 50.41 =       $101
Casinghead gas         0 Mcf  × $  2.81 =         $0

────────────────────────────────────────────────────
Month total                                     $101

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. 02/O/1541 is the state's own key, not one this site invented.