DUNCAN "A"

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

Gas lease lease 180840District 03Field 105197502 tax incentive programmesCondensateGasSaveExport
Value, all time
$43.6 M
Jan 2001 – May 2026
Value, last 12 filed months
$19 k
at the published price for each month
Months reported
305
no gaps in the span
Streams
2
condensate, 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 62 leases and 62 wells, and the rule below applies to all of them.

Discovered
1998-08-24
as the register files it
Field class
Gas
the register's own label
Between wells
1,200 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 1998-12-03.

The Commission's schedule remark for this field reads: PERMANENTLY CLASSIFIED AS GAS WELLS.

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
High Cost Gas112001-03-15143463
NGPA1none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
CondensateDisposition426,370 bbl$11,219,898
GasProduction7,355,039 Mcf$32,390,549
Total$43,610,447

Wells on this lease (1)

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 29.4343, -96.2241. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

29.43428, -96.22410 · 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
0.0%
0 of 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
13,555 ft
1 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
1100.0%

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

The one well that filed a depth was drilled to 13,555 ft.

Completions filed
Dec 2002
1 of 1 wells

1 well

42-48134277113,555 ftDec 2002

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 (305)

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

305 months

May 20261368106.413.05$1,227
Apr 2026137998.932.87$1,187
Mar 2026439989.753.15$1,616
Feb 2026142663.503.75$1,661
Jan 2026045159.138.00$3,607
Dec 2025037556.664.41$1,655
Nov 2025037658.593.93$1,476
Oct 2025039959.383.30$1,319
Sep 2025034262.743.08$1,052
Aug 2025043263.933.01$1,302
Jul 2025244266.743.32$1,599
Jun 2025336266.483.13$1,332
May 2025016060.553.23$517
Apr 2025337262.363.54$1,505
Mar 2025337467.704.27$1,799
Feb 2025437770.884.34$1,920
Jan 2025358574.324.28$2,726
Dec 2024035868.993.12$1,117
Nov 2024439669.052.20$1,147
Oct 2024123971.372.28$617
Sep 2024424369.612.36$853
Aug 2024230475.632.06$779
Jul 2024332379.932.15$933
Jun 2024432878.082.63$1,176
May 2024448978.812.20$1,390
Apr 2024451384.451.66$1,189
Mar 2024736880.301.55$1,131
Feb 2024444676.091.78$1,100
Jan 2024453473.023.30$2,053
Dec 2023955971.262.61$2,101
Nov 2023449377.892.81$1,696
Oct 2023949885.443.09$2,306
Sep 2023447389.042.74$1,650
Aug 2023340080.522.67$1,311
Jul 2023323174.852.64$835
Jun 2023448468.962.26$1,369
May 2023856470.622.23$1,821
Apr 2023455978.122.24$1,563
Mar 2023954372.852.39$1,955
Feb 2023048475.112.47$1,193
Jan 2023954076.533.39$2,518
Dec 2022454176.415.73$3,405
Nov 2022348985.005.65$3,016
Oct 2022754487.185.86$3,800
Sep 2022351884.888.16$4,483
Aug 2022455394.529.13$5,425
Jul 20225597101.587.54$5,011
Jun 20226384115.097.98$3,754
May 20223313109.378.43$2,968
Apr 20224386104.226.84$3,056
Mar 20223395108.885.08$2,332
Feb 2022349591.054.86$2,678
Jan 2022344681.844.54$2,269
Dec 2021339771.323.90$1,762
Nov 2021337477.435.24$2,191
Oct 2021334279.795.71$2,194
Sep 2021339969.865.35$2,345
Aug 2021445266.024.22$2,172
Jul 2021844770.783.98$2,346
Jun 2021441869.493.38$1,691
May 202115844263.483.02$11,364
Apr 2021336360.362.76$1,182
Mar 2021644661.302.72$1,580
Feb 2021034457.805.55$1,908
Jan 2021640550.412.81$1,441
Dec 2020340644.642.68$1,220
Nov 2020346138.772.71$1,364
Oct 202018241536.972.48$7,757
Sep 2020338837.091.99$884
Aug 2020537239.982.39$1,087
Jul 2020640238.371.83$964
Jun 2020336834.901.69$727
May 2020537016.921.81$756
Apr 2020337214.751.80$715
Mar 2020541430.341.86$920
Feb 2020638749.881.98$1,066
Jan 2020441657.252.09$1,100
Dec 2019338059.012.30$1,053
Nov 2019224655.302.75$787
Oct 2019640453.472.42$1,298
Sep 2019642555.052.66$1,460
Aug 201918344653.112.30$10,747
Jul 2019647456.272.46$1,504
Jun 2019344252.782.49$1,259
May 201919643958.482.74$12,665
Apr 2019345362.632.75$1,434
Mar 2019643956.803.06$1,685
Feb 2019446450.852.79$1,499
Jan 2019958046.033.23$2,287
Dec 2018565846.594.19$2,987
Nov 2018453352.934.24$2,470
Oct 2018760961.443.40$2,500
Sep 2018861959.543.11$2,400
Aug 2018866259.403.07$2,505
Jul 2018965065.142.93$2,492
Jun 20181163060.183.08$2,600
May 2018570765.382.90$2,378
Apr 2018630363.842.90$1,262
Mar 2018863261.222.79$2,251
Feb 2018056261.782.77$1,555
Jan 2018058462.874.01$2,341
Dec 2017069557.272.92$2,030
Nov 2017060555.423.12$1,887
Oct 2017043049.292.98$1,283
Sep 2017042247.523.09$1,303
Aug 2017139845.373.00$1,241
Jul 2017037943.873.09$1,170
Jun 2017346642.493.09$1,566
May 2017030245.373.26$986
Apr 2017337847.933.21$1,358
Mar 2017645546.772.98$1,638
Feb 20171043050.452.95$1,774
Jan 2017341149.413.42$1,553
Dec 20162545748.763.72$2,920
Nov 2016734442.492.64$1,207
Oct 2016044746.193.09$1,381
Sep 2016035941.553.10$1,113
Aug 2016048941.442.92$1,430
Jul 2016036541.622.92$1,067
Jun 2016049045.352.69$1,316
May 2016053642.521.99$1,067
Apr 2016044536.561.99$886
Mar 2016050833.011.79$911
Feb 2016047626.472.06$982
Jan 2016052227.352.36$1,234
Dec 2015055232.362.00$1,105
Nov 2015048238.792.17$1,045
Oct 2015049043.552.43$1,189
Sep 2015037842.992.76$1,043
Aug 2015010340.162.87$296
Jul 2015046448.152.95$1,367
Jun 2015036356.152.88$1,046
May 2015045755.212.96$1,351
Apr 2015139449.822.71$1,116
Mar 2015030942.892.93$907
Feb 2015035444.662.98$1,054
Jan 2015051443.433.10$1,594
Dec 2014190054.693.59$3,287
Nov 201411,02270.464.25$4,416
Oct 2014261478.303.90$2,552
Sep 2014482486.164.05$3,678
Aug 2014185689.394.04$3,543
Jul 2014099696.564.18$4,163
Jun 2014121,05498.164.74$6,171
May 201481,00894.734.73$5,522
Apr 2014070295.944.81$3,376
Mar 20140095.895.06$0
Feb 2014147497.406.19$3,032
Jan 2014066090.404.86$3,208
Dec 201319689391.824.35$21,885
Nov 201301,20488.853.74$4,501
Oct 201381,30897.423.78$5,723
Sep 201311,433104.113.72$5,432
Aug 2013211,441104.253.52$7,265
Jul 20130685102.523.72$2,547
Jun 201319155294.403.93$20,202
May 201311,35194.834.15$5,700
Apr 20131911,47493.964.28$24,259
Mar 2013101,43593.623.91$6,551
Feb 201341,11291.233.42$4,168
Jan 201311,22791.603.42$4,288
Dec 20121951,35086.773.42$21,537
Nov 201211,25786.953.62$4,644
Oct 2012161389.383.40$2,173
Sep 20120094.672.92$0
Aug 2012284992.662.91$2,654
Jul 201231,69685.133.02$5,379
Jun 20121941,44179.822.52$19,115
May 201211,75691.612.49$4,461
Apr 201211,522101.652.00$3,141
Mar 201201,367105.052.22$3,038
Feb 20121921,275101.102.57$22,688
Jan 201221,50098.092.73$4,297
Dec 201101,67396.873.24$5,420
Nov 20111961,98195.723.31$25,321
Oct 201102,12284.983.65$7,742
Sep 201111,41083.623.99$5,704
Aug 201112,17083.404.15$9,087
Jul 20111882,90694.144.52$30,825
Jun 201102,26692.904.64$10,514
May 20111841,59798.134.40$25,090
Apr 201122,166105.964.33$9,598
Mar 201131,76996.364.06$7,467
Feb 201119367785.644.18$19,358
Jan 201101,89086.504.59$8,673
Dec 201011,96085.734.35$8,607
Nov 20101911,97380.843.80$22,929
Oct 201012,01878.103.51$7,159
Sep 201011,92872.633.98$7,745
Aug 201012,00573.684.42$8,935
Jul 201001,59872.554.74$7,569
Jun 201021,38970.364.91$6,961
May 20101911,80071.124.24$21,207
Apr 201032,02781.694.12$8,602
Mar 20101892,17278.394.39$24,348
Feb 2010171,31873.585.44$8,424
Jan 2010385674.365.96$5,328
Dec 2009097971.445.48$5,369
Nov 2009077174.593.75$2,892
Oct 200931,30072.544.11$5,561
Sep 200931,98465.543.06$6,277
Aug 20091793,53467.423.22$23,442
Jul 20091913,54561.133.46$23,957
Jun 200901,93266.163.90$7,525
May 200902,11154.743.93$8,287
Apr 200902,19346.773.59$7,867
Mar 200922,75042.144.06$11,247
Feb 20091792,61132.814.63$17,970
Jan 200902,65535.865.37$14,260
Dec 20081862,71837.105.98$23,146
Nov 20081802,57455.496.86$27,647
Oct 200802,66075.246.92$18,412
Sep 200801,870101.767.88$14,730
Aug 20081862,749114.228.48$44,565
Jul 200802,321131.0811.39$26,435
Jun 20080892131.3313.03$11,625
May 20080981123.1711.57$11,354
Apr 20083541,614110.3110.45$55,924
Mar 200801,510101.909.66$14,593
Feb 200801,27292.538.77$11,156
Jan 200801,58390.388.21$12,990
Dec 200701,79888.337.30$13,129
Nov 200701,78491.677.29$13,008
Oct 200701,53182.856.92$10,598
Sep 200701,29175.846.24$8,061
Aug 200701,60569.066.39$10,253
Jul 20071041,96570.906.39$19,926
Jun 200702,89762.007.55$21,868
May 200702,33958.747.85$18,352
Apr 200707,09559.617.81$55,378
Mar 20073569,26556.927.30$87,916
Feb 20071887,65655.108.22$73,261
Jan 20073789,59750.306.73$83,571
Dec 20063769,30856.656.92$85,697
Nov 20061818,14454.207.62$71,847
Oct 200637510,20654.906.01$81,964
Sep 200618410,27260.085.04$62,797
Aug 20063568,85168.717.34$89,426
Jul 200619210,21469.376.34$78,104
Jun 200636610,43966.286.38$90,900
May 200617910,78066.016.42$81,077
Apr 200637510,18464.397.36$99,105
Mar 20061959,84356.707.08$80,774
Feb 200658010,11757.597.75$111,820
Jan 200638310,92060.598.93$120,758
Dec 200536711,50854.9413.42$174,547
Nov 200536111,16154.6910.59$137,920
Oct 200536811,34858.3413.80$178,023
Sep 20053699,94661.4512.08$142,813
Aug 200517812,26261.519.80$131,078
Jul 200536613,94955.697.84$129,793
Jun 20051781,23452.337.38$18,423
May 200537010,48245.226.65$86,449
Apr 200524,12849.207.36$30,482
Mar 20053578,96650.377.15$82,133
Feb 200536411,72345.226.31$90,455
Jan 200506,07843.166.32$38,426
Dec 200436111,63039.866.75$92,905
Nov 200435815,14045.286.33$112,053
Oct 200435410,44149.706.52$85,618
Sep 20043549,91143.245.28$67,676
Aug 200435323,56342.375.55$145,747
Jul 200435626,28138.286.08$173,526
Jun 200435626,56236.106.43$183,725
May 200471428,42937.486.49$211,395
Apr 200452427,84634.475.86$181,197
Mar 200490925,92134.365.53$174,580
Feb 200472226,08132.455.51$167,125
Jan 200435026,00032.036.30$175,001
Dec 200336132,04830.266.30$212,879
Nov 200335631,24428.804.60$153,824
Oct 200371228,12228.174.76$153,908
Sep 200371330,29426.314.75$162,636
Aug 200335631,19729.765.13$170,626
Jul 200335432,31329.415.17$177,496
Jun 200371029,34628.565.98$195,854
May 200371131,15326.595.97$204,972
Apr 200354130,60726.675.41$179,929
Mar 200372629,87231.146.10$204,709
Feb 200372624,47833.487.93$218,316
Jan 200372225,62830.315.58$164,940
Dec 20021,26333,10326.914.85$194,661
Nov 20021,78944,70024.664.14$229,039
Oct 20021,79249,34826.464.23$256,115
Sep 20021,77756,93927.443.64$255,746
Aug 20021,95967,92825.963.16$265,791
Jul 20022,11273,61724.583.06$277,311
Jun 20021,92178,18123.733.34$306,572
May 20022,69693,60924.663.58$401,978
Apr 20022,705104,28623.653.51$430,259
Mar 20023,415123,95522.003.10$459,728
Feb 20023,326129,96818.222.38$369,362
Jan 20024,797168,29317.172.38$482,175
Dec 20015,808187,10716.932.36$540,725
Nov 20017,675211,80118.072.41$648,179
Oct 200111,540261,60019.782.53$889,816
Sep 200114,001296,97824.262.25$1,008,257
Aug 200119,504396,36424.873.05$1,695,227
Jul 200125,852450,88523.933.20$2,060,154
Jun 200127,554491,57724.563.82$2,556,595
May 200138,876611,28625.524.31$3,625,120
Apr 200153,782687,54024.685.34$4,995,586
Mar 200179,081827,27624.545.38$6,388,448
Feb 200181,160744,45927.755.77$6,545,545
Jan 20015,99578,35627.478.40$822,776

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
Condensate             1 bbl  × $106.41 =       $106
Gas                  368 Mcf  × $  3.05 =     $1,121

────────────────────────────────────────────────────
Month total                                   $1,227

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. 03/G/180840 is the state's own key, not one this site invented.