ELLIS UNIT A-521

Operated by DELFIN OPERATING, LLC (P-5 212175) in the BROOKELAND (AUSTIN CHALK, 8800) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 171881District 06Field 12193500CondensateGasSaveExport
Value, all time
$9.0 M
Jan 1999 – May 2026
Value, last 12 filed months
$13 k
at the published price for each month
Months reported
329
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 488 leases and 597 wells, and the rule below applies to all of them.

Discovered
1983-06-12
as the register files it
Field class
Oil and gas
the register's own label
Between wells
900 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 160 acres. The field rule took effect on 2009-10-22.

The Commission's schedule remark for this field reads: ACRES. DOCKET EFFECTIVE 10-22-09.

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
CondensateDisposition97,711 bbl$3,309,886
GasProduction1,543,132 Mcf$5,684,641
Total$8,994,527

Every month this lease reported (329)

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

329 months

May 2026030106.413.05$91
Apr 202601998.932.87$55
Mar 20260089.753.15$0
Feb 202601063.503.75$38
Jan 202605059.138.00$400
Dec 2025163856.664.41$9,271
Nov 202504058.593.93$157
Oct 2025011759.383.30$387
Sep 2025011962.743.08$366
Aug 202509963.933.01$298
Jul 2025019766.743.32$653
Jun 2025032066.483.13$1,001
May 202515548960.553.23$10,966
Apr 202501062.363.54$35
Mar 202501467.704.27$60
Feb 202589070.884.34$6,308
Jan 2025019774.324.28$843
Dec 2024025368.993.12$790
Nov 202489227069.052.20$62,186
Oct 20246843071.372.28$5,834
Sep 202416752269.612.36$12,859
Aug 2024018475.632.06$380
Jul 20241714279.932.15$13,758
Jun 202401478.082.63$37
May 2024047478.812.20$1,042
Apr 202410483684.451.66$10,170
Mar 202417641680.301.55$14,776
Feb 2024020676.091.78$367
Jan 2024033173.023.30$1,092
Dec 202318025571.262.61$13,493
Nov 202307577.892.81$211
Oct 2023789185.443.09$6,945
Sep 202317914089.042.74$16,321
Aug 20238764980.522.67$8,740
Jul 2023055074.852.64$1,453
Jun 202310643268.962.26$8,285
May 2023013670.622.23$303
Apr 202316438378.122.24$13,669
Mar 202302,42072.852.39$5,791
Feb 2023033975.112.47$836
Jan 202313429176.533.39$11,241
Dec 2022025176.415.73$1,438
Nov 2022038585.005.65$2,174
Oct 2022037987.185.86$2,222
Sep 202211286084.888.16$16,527
Aug 20221601,05494.529.13$24,743
Jul 20220320101.587.54$2,413
Jun 202200115.097.98$0
May 20220165109.378.43$1,391
Apr 20220254104.226.84$1,737
Mar 202200108.885.08$0
Feb 20220791.054.86$34
Jan 2022046981.844.54$2,128
Dec 20210071.323.90$0
Nov 202101,06977.435.24$5,598
Oct 2021043479.795.71$2,480
Sep 202109269.865.35$492
Aug 202104966.024.22$207
Jul 2021011470.783.98$454
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 202154061.302.72$3,310
Feb 2021161057.805.55$9,306
Jan 20210050.412.81$0
Dec 20201652544.642.68$7,432
Nov 202004038.772.71$108
Oct 202008536.972.48$211
Sep 2020014837.091.99$295
Aug 2020012539.982.39$298
Jul 20201885538.371.83$7,314
Jun 2020049134.901.69$830
May 202005116.921.81$93
Apr 202009514.751.80$171
Mar 202018223330.341.86$5,954
Feb 2020027149.881.98$537
Jan 202018454057.252.09$11,665
Dec 2019024759.012.30$569
Nov 201901855.302.75$50
Oct 2019159053.472.42$8,502
Sep 2019052355.052.66$1,390
Aug 2019037053.112.30$853
Jul 20191822,12456.272.46$15,466
Jun 201907952.782.49$197
May 201903,04058.482.74$8,331
Apr 20192394,02662.632.75$26,043
Mar 201904,75356.803.06$14,554
Feb 201902,75450.852.79$7,690
Jan 20191834,68846.033.23$23,557
Dec 20181991,65846.594.19$16,211
Nov 201801,50352.934.24$6,369
Oct 201801,50961.443.40$5,128
Sep 201801,28459.543.11$3,991
Aug 20183951,33959.403.07$27,569
Jul 201801,16965.142.93$3,427
Jun 201801,39560.183.08$4,292
May 2018611,30065.382.90$7,759
Apr 201819773463.842.90$14,706
Mar 201801,65261.222.79$4,604
Feb 201801,59561.782.77$4,412
Jan 20181821,05062.874.01$15,652
Dec 201701,37857.272.92$4,026
Nov 20171841,04355.423.12$13,450
Oct 201701,77349.292.98$5,290
Sep 20171891,21547.523.09$12,732
Aug 201791,29945.373.00$4,311
Jul 20171741,68043.873.09$12,820
Jun 201701,73442.493.09$5,353
May 201718692445.373.26$11,454
Apr 201701,45247.933.21$4,663
Mar 20171901,13846.772.98$12,282
Feb 201701,36550.452.95$4,030
Jan 20172001,69049.413.42$15,660
Dec 201601,79748.763.72$6,690
Nov 20161801,67842.492.64$12,085
Oct 20161822,52346.193.09$16,203
Sep 2016079341.553.10$2,459
Aug 201601,77541.442.92$5,191
Jul 20161821,62741.622.92$12,333
Jun 201601,51945.352.69$4,080
May 20161782,09742.521.99$11,744
Apr 201601,40736.561.99$2,801
Mar 201601,80933.011.79$3,245
Feb 20161792,11926.472.06$9,111
Jan 201602,38827.352.36$5,646
Dec 2015991,17532.362.00$5,555
Nov 20151751,77938.792.17$10,644
Oct 20151852,01943.552.43$12,956
Sep 20151842,17042.992.76$13,896
Aug 20151683,30740.162.87$16,246
Jul 201501,33748.152.95$3,938
Jun 201501,07756.152.88$3,105
May 20151791,67355.212.96$14,827
Apr 201517859849.822.71$10,486
Mar 201501,97442.892.93$5,793
Feb 201501,53044.662.98$4,554
Jan 201502,22943.433.10$6,911
Dec 20141822,30754.693.59$18,239
Nov 20141792,99270.464.25$25,334
Oct 201402,12778.303.90$8,297
Sep 20141762,14086.164.05$23,821
Aug 201402,50889.394.04$10,120
Jul 20141782,79596.564.18$28,870
Jun 201401,55798.164.74$7,375
May 20141781,53194.734.73$24,098
Apr 2014098295.944.81$4,723
Mar 20143612,74195.895.06$48,477
Feb 201402,06197.406.19$12,762
Jan 201402,04990.404.86$9,960
Dec 201303,22691.824.35$14,048
Nov 201318294188.853.74$19,688
Oct 201301,98397.423.78$7,494
Sep 20131682,252104.113.72$25,863
Aug 201302,333104.253.52$8,218
Jul 20131742,605102.523.72$27,523
Jun 20131761,63894.403.93$23,057
May 20131792,47194.834.15$27,227
Apr 201301,14793.964.28$4,912
Mar 20131763,01993.623.91$28,290
Feb 201302,48191.233.42$8,485
Jan 2013082791.603.42$2,828
Dec 201202,96686.773.42$10,144
Nov 201213961986.953.62$14,330
Oct 201237477289.383.40$36,053
Sep 201201,67494.672.92$4,885
Aug 20121762,76192.662.91$24,338
Jul 20121382,53885.133.02$19,415
Jun 201201,12379.822.52$2,829
May 20121872,11391.612.49$22,389
Apr 20121782,630101.652.00$23,345
Mar 201201,843105.052.22$4,095
Feb 201201,207101.102.57$3,102
Jan 20123461,75398.092.73$38,732
Dec 201118174996.873.24$19,960
Nov 201102,22395.723.31$7,361
Oct 201101,25384.983.65$4,572
Sep 201117654283.623.99$16,877
Aug 201102,15183.404.15$8,925
Jul 201101,55894.144.52$7,038
Jun 20111922,99192.904.64$31,715
May 20111942,62198.134.40$30,582
Apr 20111751,749105.964.33$26,122
Mar 201101,83796.364.06$7,453
Feb 2011025985.644.18$1,083
Jan 2011057386.504.59$2,629
Dec 20103591,57085.734.35$37,603
Nov 20101762,69880.843.80$24,468
Oct 201002,17678.103.51$7,635
Sep 201001,03772.633.98$4,127
Aug 20101741,03073.684.42$17,372
Jul 20101782,71972.554.74$25,792
Jun 20101762,64570.364.91$25,371
May 20101743,63271.124.24$27,757
Apr 201017860781.694.12$17,043
Mar 2010047278.394.39$2,071
Feb 201002,01273.585.44$10,950
Jan 20103602,33274.365.96$40,678
Dec 20091802,05371.445.48$24,117
Nov 2009075974.593.75$2,847
Oct 20091794,12372.544.11$29,931
Sep 200916681865.543.06$13,387
Aug 200917981567.423.22$14,691
Jul 20091823,34561.133.46$22,714
Jun 200917850866.163.90$13,755
May 200918757954.743.93$12,509
Apr 2009048346.773.59$1,733
Mar 2009045142.144.06$1,831
Feb 2009027532.814.63$1,274
Jan 20093652,25635.865.37$25,206
Dec 20081802,31437.105.98$20,509
Nov 200821,36955.496.86$9,503
Oct 200802,15675.246.92$14,924
Sep 2008185724101.767.88$24,529
Aug 20081772,228114.228.48$39,117
Jul 20081771,541131.0811.39$40,752
Jun 20081792,782131.3313.03$59,765
May 20081752,640123.1711.57$52,111
Apr 200842,167110.3110.45$23,097
Mar 20081763,129101.909.66$48,173
Feb 20081863,47992.538.77$47,723
Jan 20083973,08790.388.21$61,212
Dec 200731,15188.337.30$8,670
Nov 20071882,09691.677.29$32,517
Oct 20071951,98582.856.92$29,896
Sep 2007054975.846.24$3,428
Aug 20071771,41169.066.39$21,237
Jul 20071773,69870.906.39$36,172
Jun 20071784,35862.007.55$43,932
May 20073634,41158.747.85$55,933
Apr 200701,10759.617.81$8,640
Mar 20071782,26156.927.30$26,642
Feb 20073713,84455.108.22$52,024
Jan 200701,99850.306.73$13,440
Dec 20061743,95956.656.92$37,247
Nov 20063582,45254.207.62$38,082
Oct 200613,42654.906.01$20,658
Sep 20061881,82260.085.04$20,473
Aug 20063353,43668.717.34$48,238
Jul 200622,76469.376.34$17,670
Jun 20063533,78466.286.38$47,553
May 20061762,49766.016.42$27,661
Apr 200622,79764.397.36$20,716
Mar 20063922,83656.707.08$42,314
Feb 20063603,94457.597.75$51,303
Jan 200601,19760.598.93$10,693
Dec 200518642954.9413.42$15,974
Nov 200531,37854.6910.59$14,755
Oct 20051841,14158.3413.80$26,476
Sep 20051831,88461.4512.08$34,002
Aug 20051972,97661.519.80$41,273
Jul 20051812,27755.697.84$27,940
Jun 20053713,35052.337.38$44,141
May 20051863,38145.226.65$30,898
Apr 20051803,27549.207.36$32,962
Mar 20055594,21350.377.15$58,300
Feb 200505,16045.226.31$32,570
Jan 200542055443.166.32$21,630
Dec 20041813,06839.866.75$27,927
Nov 20041932,42545.286.33$24,090
Oct 20043523,40949.706.52$39,704
Sep 20041903,04243.245.28$24,289
Aug 20041643,46842.375.55$26,198
Jul 20041873,39738.286.08$27,826
Jun 20043783,92536.106.43$38,895
May 20043714,29937.486.49$41,825
Apr 20043583,66134.475.86$33,788
Mar 20043204,27734.365.53$34,648
Feb 20041823,29832.455.51$24,077
Jan 20043593,62932.036.30$34,360
Dec 200314,35730.266.30$27,487
Nov 20033684,51828.804.60$31,359
Oct 20031793,70828.174.76$22,691
Sep 20035354,38026.314.75$34,878
Aug 20031803,75529.765.13$24,619
Jul 20033545,32429.415.17$37,941
Jun 20033563,29728.565.98$29,893
May 20033524,80426.595.97$38,052
Apr 20033625,33826.675.41$38,519
Mar 20035366,14631.146.10$54,157
Feb 20031824,66333.487.93$43,052
Jan 20033447,19030.315.58$50,562
Dec 20023625,13126.914.85$34,646
Nov 20025327,69824.664.14$44,965
Oct 20023566,54526.464.23$37,099
Sep 20023635,40127.443.64$29,594
Aug 20023586,81925.963.16$30,870
Jul 20025267,72124.583.06$36,569
Jun 20025179,14023.733.34$42,780
May 20024375,22124.663.58$29,488
Apr 20025148,83823.653.51$43,198
Mar 200270811,82522.003.10$52,266
Feb 20021,04016,69518.222.38$58,611
Jan 20023612,70117.172.38$12,615
Dec 20015302,52416.932.36$14,941
Nov 20011702,41618.072.41$8,884
Oct 20013573,17519.782.53$15,091
Sep 20011772,06124.262.25$8,934
Aug 20018869,71724.873.05$51,702
Jul 200170210,81423.933.20$51,372
Jun 200188710,33524.563.82$61,307
May 200171211,04025.524.31$65,723
Apr 200171213,89624.685.34$91,712
Mar 20011,07514,95024.545.38$106,758
Feb 20017129,73227.755.77$75,883
Jan 20011,07915,01527.478.40$155,748
Dec 200053417,25626.889.12$171,772
Nov 200090114,04532.215.66$108,488
Oct 20001,23417,13531.235.15$126,706
Sep 200053221,21831.875.19$127,002
Aug 20001,06614,41929.644.54$97,069
Jul 20001,06420,17728.534.09$112,875
Jun 20001,24921,79829.304.40$132,447
May 20001,23122,39627.263.68$115,969
Apr 20001,25927,07924.513.12$115,236
Mar 20001,40333,58128.422.86$135,907
Feb 20001,97037,68327.622.73$157,154
Jan 20001,62532,95325.272.48$122,804
Dec 19991,80435,48024.282.42$129,795
Nov 19992,13847,05723.192.43$164,116
Oct 19992,67262,19820.982.80$230,444
Sep 19994,26379,54221.752.62$301,029
Aug 19991,75425,28919.262.88$106,503
Jul 19991,95815,06417.892.37$70,766
Jun 19991,92520,87815.942.36$80,000
May 19993932,89615.792.32$12,927
Apr 19991,7459,35115.102.21$46,997
Mar 19992,13915,44912.471.84$55,074
Feb 19995,52888,4809.981.82$216,008
Jan 199910,335193,47010.381.90$474,861

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             0 bbl  × $106.41 =         $0
Gas                   30 Mcf  × $  3.05 =        $91

────────────────────────────────────────────────────
Month total                                      $91

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. 06/G/171881 is the state's own key, not one this site invented.