DUVON, NELL M.

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

Oil lease lease 1561District 04Field 54506001OilCasinghead gasSaveExport
Value, all time
$11.4 M
Jan 1993 – May 2026
Value, last 12 filed months
$385 k
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 69 leases and 329 wells, and the rule below applies to all of them.

Discovered
1934-01-01
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 10 acres.

The Commission's schedule remark for this field reads: PER SPECIAL ORDER DATED 5/25/35/LP.

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
OilDisposition204,757 bbl$11,438,818
Casinghead gasProduction20 Mcf$0
Total$11,438,818

20 Mcf of this lease's gas, across 20 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 (6)

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 27.8588, -98.6003. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

27.85882, -98.59997 · 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
50.0%
3 of 6 wells
With a plug date
50.0%
3 of 6 wells
Median depth
2,676 ft
6 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
350.0%
A plug date is filed
350.0%
BothOn the schedule and plugged. Neither fact cancels the other.
350.0%
NeitherNo plug date, and not on the schedule.
350.0%

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 2,640 and 2,750 ft, median 2,676 ft, over the 6 wells that filed a depth.

Completions filed
Apr 2001 – Apr 2019
3 of 6 wells; 3 filed none
Plug dates filed
Dec 1988 – Feb 2016
3 of 6 wells; 3 filed none

6 wells

42-1310383352,640 ftDec 1988Yes
42-1318085812,680 ftFeb 2016Yes
42-1318086042,646 ftApr 2003Yes
42-1310379032,671 ftApr 2019
42-1313853372,750 ftNov 2003
42-1313843462,700 ftApr 2001

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 20266340106.413.05$67,464
Apr 2026618098.932.87$61,139
Mar 2026439089.753.15$39,400
Feb 2026931063.503.75$59,119
Jan 2026454059.138.00$26,845
Dec 2025430056.664.41$24,364
Nov 2025314058.593.93$18,397
Oct 2025471059.383.30$27,968
Sep 2025318062.743.08$19,951
Aug 2025300063.933.01$19,179
Jul 20250066.743.32$0
Jun 2025314066.483.13$20,875
May 2025652060.553.23$39,479
Apr 2025625062.363.54$38,975
Mar 2025628067.704.27$42,516
Feb 2025476070.884.34$33,739
Jan 2025320074.324.28$23,782
Dec 2024644068.993.12$44,430
Nov 2024478069.052.20$33,006
Oct 2024637071.372.28$45,463
Sep 2024642069.612.36$44,690
Aug 2024316075.632.06$23,899
Jul 20240079.932.15$0
Jun 2024161078.082.63$12,571
May 2024317078.812.20$24,983
Apr 2024321084.451.66$27,108
Mar 2024321080.301.55$25,776
Feb 2024321076.091.78$24,425
Jan 2024328073.023.30$23,951
Dec 2023314071.262.61$22,376
Nov 2023326077.892.81$25,392
Oct 2023318085.443.09$27,170
Sep 2023483089.042.74$43,006
Aug 2023486080.522.67$39,133
Jul 2023321074.852.64$24,027
Jun 2023481068.962.26$33,170
May 2023320070.622.23$22,598
Apr 2023325078.122.24$25,389
Mar 2023476072.852.39$34,677
Feb 2023480075.112.47$36,053
Jan 2023321076.533.39$24,566
Dec 2022487076.415.73$37,212
Nov 2022492085.005.65$41,820
Oct 2022312087.185.86$27,200
Sep 2022470084.888.16$39,894
Aug 2022485094.529.13$45,842
Jul 20223190101.587.54$32,404
Jun 20224770115.097.98$54,898
May 20224790109.378.43$52,388
Apr 20224790104.226.84$49,921
Mar 20224850108.885.08$52,807
Feb 2022321091.054.86$29,227
Jan 2022649081.844.54$53,114
Dec 2021319071.323.90$22,751
Nov 2021318077.435.24$24,623
Oct 2021486079.795.71$38,778
Sep 2021474069.865.35$33,114
Aug 2021317066.024.22$20,928
Jul 2021639070.783.98$45,228
Jun 2021642069.493.38$44,613
May 2021483063.483.02$30,661
Apr 2021480060.362.76$28,973
Mar 2021646061.302.72$39,600
Feb 2021330057.805.55$19,074
Jan 2021652050.412.81$32,867
Dec 2020495044.642.68$22,097
Nov 2020635038.772.71$24,619
Oct 2020643036.972.48$23,772
Sep 2020489037.091.99$18,137
Aug 2020647039.982.39$25,867
Jul 2020644038.371.83$24,710
Jun 2020485034.901.69$16,927
May 2020648016.921.81$10,964
Apr 2020491014.751.80$7,242
Mar 2020641030.341.86$19,448
Feb 2020489049.881.98$24,391
Jan 2020655057.252.09$37,499
Dec 2019649059.012.30$38,297
Nov 2019496055.302.75$27,429
Oct 2019651053.472.42$34,809
Sep 2019643055.052.66$35,397
Aug 2019630053.112.30$33,459
Jul 2019623056.272.46$35,056
Jun 2019484052.782.49$25,546
May 2019811058.482.74$47,427
Apr 2019649062.632.75$40,647
Mar 2019626056.803.06$35,557
Feb 2019484050.852.79$24,611
Jan 2019795046.033.23$36,594
Dec 2018639046.594.19$29,771
Nov 2018638052.934.24$33,769
Oct 2018628061.443.40$38,584
Sep 2018640059.543.11$38,106
Aug 2018804059.403.07$47,758
Jul 2018482065.142.93$31,397
Jun 2018799060.183.08$48,084
May 2018800065.382.90$52,304
Apr 2018637063.842.90$40,666
Mar 2018658061.222.79$40,283
Feb 2018656061.782.77$40,528
Jan 2018647062.874.01$40,677
Dec 2017654057.272.92$37,455
Nov 2017811055.423.12$44,946
Oct 2017499049.292.98$24,596
Sep 2017633047.523.09$30,080
Aug 2017798045.373.00$36,205
Jul 2017647043.873.09$28,384
Jun 2017660042.493.09$28,043
May 2017633045.373.26$28,719
Apr 2017811047.933.21$38,871
Mar 2017650046.772.98$30,401
Feb 2017646050.452.95$32,591
Jan 2017655049.413.42$32,364
Dec 2016658048.763.72$32,084
Nov 2016648042.492.64$27,534
Oct 2016637046.193.09$29,423
Sep 2016798041.553.10$33,157
Aug 2016652041.442.92$27,019
Jul 2016646041.622.92$26,887
Jun 2016646045.352.69$29,296
May 2016629042.521.99$26,745
Apr 2016656036.561.99$23,983
Mar 2016656033.011.79$21,655
Feb 2016650026.472.06$17,206
Jan 2016652027.352.36$17,832
Dec 2015652032.362.00$21,099
Nov 2015634038.792.17$24,593
Oct 2015645043.552.43$28,090
Sep 2015636042.992.76$27,342
Aug 2015629040.162.87$25,261
Jul 2015794048.152.95$38,231
Jun 2015794056.152.88$44,583
May 2015318055.212.96$17,557
Apr 2015777049.822.71$38,710
Mar 2015630042.892.93$27,021
Feb 2015637044.662.98$28,448
Jan 2015627043.433.10$27,231
Dec 2014629054.693.59$34,400
Nov 2014638070.464.25$44,953
Oct 2014785078.303.90$61,466
Sep 2014633086.164.05$54,539
Aug 2014626089.394.04$55,958
Jul 2014649096.564.18$62,667
Jun 2014468098.164.74$45,939
May 2014726094.734.73$68,774
Apr 2014638095.944.81$61,210
Mar 2014645095.895.06$61,849
Feb 2014473097.406.19$46,070
Jan 2014632090.404.86$57,133
Dec 2013476091.824.35$43,706
Nov 2013634088.853.74$56,331
Oct 2013623097.423.78$60,693
Sep 20136310104.113.72$65,693
Aug 20134840104.253.52$50,457
Jul 20136380102.523.72$65,408
Jun 2013635094.403.93$59,944
May 2013633094.834.15$60,027
Apr 2013467093.964.28$43,879
Mar 2013490093.623.91$45,874
Feb 2013652091.233.42$59,482
Jan 2013660091.603.42$60,456
Dec 2012490086.773.42$42,517
Nov 2012632086.953.62$54,952
Oct 2012650089.383.40$58,097
Sep 2012497094.672.92$47,051
Aug 2012648092.662.91$60,044
Jul 2012473085.133.02$40,266
Jun 2012487079.822.52$38,872
May 2012644091.612.49$58,997
Apr 20126520101.652.00$66,276
Mar 20124820105.052.22$50,634
Feb 20124790101.102.57$48,427
Jan 2012645098.092.73$63,268
Dec 2011644096.873.24$62,384
Nov 2011793095.723.31$75,906
Oct 2011630084.983.65$53,537
Sep 2011633083.623.99$52,931
Aug 2011642083.404.15$53,543
Jul 2011801094.144.52$75,406
Jun 2011630092.904.64$58,527
May 2011651098.134.40$63,883
Apr 20116530105.964.33$69,192
Mar 2011799096.364.06$76,992
Feb 2011808085.644.18$69,197
Jan 2011632086.504.59$54,668
Dec 2010487085.734.35$41,751
Nov 2010664080.843.80$53,678
Oct 2010642078.103.51$50,140
Sep 2010652072.633.98$47,355
Aug 2010629073.684.42$46,345
Jul 2010634072.554.74$45,997
Jun 2010639070.364.91$44,960
May 2010665071.124.24$47,295
Apr 2010633081.694.12$51,710
Mar 2010484078.394.39$37,941
Feb 2010350073.585.44$25,753
Jan 2010640074.365.96$47,590
Dec 2009490071.445.48$35,006
Nov 2009328074.593.75$24,466
Oct 2009668072.544.11$48,457
Sep 2009639065.543.06$41,880
Aug 2009629067.423.22$42,407
Jul 2009670061.133.46$40,957
Jun 2009651066.163.90$43,070
May 2009481054.743.93$26,330
Apr 2009480046.773.59$22,450
Mar 2009645042.144.06$27,180
Feb 2009483032.814.63$15,847
Jan 2009499035.865.37$17,894
Dec 2008512037.105.98$18,995
Nov 2008325055.496.86$18,034
Oct 2008320075.246.92$24,077
Sep 20084930101.767.88$50,168
Aug 20085100114.228.48$58,252
Jul 20083360131.0811.39$44,043
Jun 20083360131.3313.03$44,127
May 20084820123.1711.57$59,368
Apr 20083320110.3110.45$36,623
Mar 20084950101.909.66$50,441
Feb 2008487092.538.77$45,062
Jan 2008665090.388.21$60,103
Dec 2007501088.337.30$44,253
Nov 2007504091.677.29$46,202
Oct 2007505082.856.92$41,839
Sep 2007484075.846.24$36,707
Aug 2007647069.066.39$44,682
Jul 2007506070.906.39$35,875
Jun 2007493062.007.55$30,566
May 2007472058.747.85$27,725
Apr 2007486059.617.81$28,970
Mar 2007508056.927.30$28,915
Feb 2007482055.108.22$26,558
Jan 2007485050.306.73$24,396
Dec 2006654056.656.92$37,049
Nov 2006490054.207.62$26,558
Oct 2006675054.906.01$37,058
Sep 2006658060.085.04$39,533
Aug 2006660068.717.34$45,349
Jul 2006665069.376.34$46,131
Jun 2006658066.286.38$43,612
May 2006650066.016.42$42,907
Apr 2006815064.397.36$52,478
Mar 2006647056.707.08$36,685
Feb 2006814057.597.75$46,878
Jan 2006658060.598.93$39,868
Dec 2005662054.9413.42$36,370
Nov 2005817054.6910.59$44,682
Oct 2005660058.3413.80$38,504
Sep 2005811061.4512.08$49,836
Aug 2005816061.519.80$50,192
Jul 2005827055.697.84$46,056
Jun 20051,141052.337.38$59,709
May 2005989045.226.65$44,723
Apr 2005812049.207.36$39,950
Mar 2005803050.377.15$40,447
Feb 2005990045.226.31$44,768
Jan 2005992043.166.32$42,815
Dec 20041,006039.866.75$40,099
Nov 2004813045.286.33$36,813
Oct 2004676049.706.52$33,597
Sep 2004796043.245.28$34,419
Aug 2004987042.375.55$41,819
Jul 2004816038.286.08$31,236
Jun 2004809036.106.43$29,205
May 2004979037.486.49$36,693
Apr 2004836034.475.86$28,817
Mar 2004992034.365.53$34,085
Feb 2004837032.455.51$27,161
Jan 2004968032.036.30$31,005
Dec 20031,001030.266.30$30,290
Nov 2003836028.804.60$24,077
Oct 20031,001028.174.76$28,198
Sep 2003858026.314.75$22,574
Aug 2003811029.765.13$24,135
Jul 2003663029.415.17$19,499
Jun 2003980028.565.98$27,989
May 2003822026.595.97$21,857
Apr 2003982026.675.41$26,190
Mar 2003832031.146.10$25,908
Feb 2003849033.487.93$28,425
Jan 2003850030.315.58$25,764
Dec 2002840026.914.85$22,604
Nov 2002680024.664.14$16,769
Oct 2002845026.464.23$22,359
Sep 2002875027.443.64$24,010
Aug 2002856025.963.16$22,222
Jul 2002809024.583.06$19,885
Jun 2002822023.733.34$19,506
May 2002967024.663.58$23,846
Apr 2002831023.653.51$19,653
Mar 2002798022.003.10$17,556
Feb 2002832018.222.38$15,159
Jan 2002856017.172.38$14,698
Dec 2001815016.932.36$13,798
Nov 20011,010018.072.41$18,251
Oct 2001460019.782.53$9,099
Sep 2001835024.262.25$20,257
Aug 2001671024.873.05$16,688
Jul 2001672023.933.20$16,081
Jun 2001652024.563.82$16,013
May 2001669025.524.31$17,073
Apr 2001345024.685.34$8,515
Mar 2001490024.545.38$12,025
Feb 2001479027.755.77$13,292
Jan 2001517027.478.40$14,202
Dec 2000342026.889.12$9,193
Nov 2000338032.215.66$10,887
Oct 2000480031.235.15$14,990
Sep 2000322031.875.19$10,262
Aug 2000478029.644.54$14,168
Jul 2000324028.534.09$9,244
Jun 2000478029.304.40$14,005
May 2000342027.263.68$9,323
Apr 2000162024.513.12$3,971
Mar 2000327028.422.86$9,293
Feb 2000340027.622.73$9,391
Jan 2000163025.272.48$4,119
Dec 1999318024.282.42$7,721
Nov 1999324023.192.43$7,514
Oct 1999321020.982.80$6,735
Sep 1999329021.752.62$7,156
Aug 1999320019.262.88$6,163
Jul 1999317017.892.37$5,671
Jun 1999303015.942.36$4,830
May 1999323015.792.32$5,100
Apr 1999310015.102.21$4,681
Mar 1999153012.471.84$1,908
Feb 199930809.981.82$3,074
Jan 1999311010.381.90$3,228
Dec 199831409.201.77$2,889
Nov 1998165010.892.19$1,797
Oct 1998309012.421.97$3,838
Sep 1998324012.592.08$4,079
Aug 1998157011.301.91$1,774
Jul 1998323011.742.24$3,792
Jun 1998160011.242.24$1,798
May 1998164012.622.21$2,070
Apr 1998169013.042.51$2,204
Mar 1998173012.802.31$2,214
Feb 1998175013.952.30$2,441
Jan 19980014.702.15$0
Dec 1997163016.322.41$2,660
Nov 1997171018.193.09$3,110
Oct 1997180019.253.15$3,465
Sep 1997176017.742.95$3,122
Aug 1997171017.862.55$3,054
Jul 1997180017.582.25$3,164
Jun 1997177017.242.26$3,051
May 1997168018.972.31$3,187
Apr 19970017.882.08$0
Mar 1997179018.951.94$3,392
Feb 19970020.492.21$0
Jan 1997174023.483.54$4,086
Dec 1996186023.32$4,338
Nov 1996177021.97$3,889
Oct 19960023.31$0
Sep 1996176022.22$3,911
Aug 1996174020.26$3,525
Jul 1996179019.55$3,499
Jun 19960018.73$0
May 1996180019.43$3,497
Apr 1996168021.51$3,614
Mar 1996163019.38$3,159
Feb 19960016.98$0
Jan 1996179017.07$3,056
Dec 1995182017.19$3,129
Nov 19950016.00$0
Oct 1995166015.43$2,561
Sep 1995177016.18$2,864
Aug 1995181015.92$2,882
Jul 1995178015.24$2,713
Jun 19950016.41$0
May 1995173017.56$3,038
Apr 1995171017.73$3,032
Mar 1995180016.44$2,959
Feb 19950016.58$0
Jan 1995162015.92$2,579
Dec 1994175015.03$2,630
Nov 1994177015.90$2,814
Oct 19940015.58$0
Sep 1994175115.29$2,676
Aug 1994182116.13$2,936
Jul 1994167117.56$2,933
Jun 1994169117.09$2,888
May 19940115.88$0
Apr 1994179114.14$2,531
Mar 1994182112.46$2,268
Feb 1994170112.50$2,125
Jan 1994178112.66$2,253
Dec 19930112.33$0
Nov 19930014.49$0
Oct 1993173115.85$2,742
Sep 1993172115.03$2,585
Aug 1993163115.66$2,553
Jul 1993173115.46$2,675
Jun 1993168116.79$2,821
May 1993171117.68$3,023
Apr 1993176118.05$3,177
Mar 19930118.14$0
Feb 1993164117.90$2,936
Jan 1993157116.93$2,658

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 2026 — as filed, then multipliedworked
Oil                  634 bbl  × $106.41 =    $67,464
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $67,464

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/1561 is the state's own key, not one this site invented.