FLANAGAN UNIT

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

Oil lease lease 66633District 8AField 39242001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$2.2 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 54 leases and 543 wells, and the rule below applies to all of them.

Discovered
1949-10-16
as the register files it
Field class
Oil
the register's own label
Between wells
600 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 1990-12-03.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: PER DOC 8A-95247 FLD RULES AMENDED EFF 12-3-90

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
OilDisposition91,845 bbl$2,198,261
Casinghead gasProduction20,440 Mcf$51,687
Total$2,249,948

9,634 Mcf of this lease's gas, across 33 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 (7)

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 32.5497, -102.7126. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.8 miles.

32.54422, -102.71763 · 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
71.4%
5 of 7 wells
With a plug date
42.9%
3 of 7 wells
Median depth
6,200 ft
7 wells filed one
Completion to plug
30.3 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
571.4%
A plug date is filed
342.9%
BothOn the schedule and plugged. Neither fact cancels the other.
228.6%
NeitherNo plug date, and not on the schedule.
114.3%

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 6,100 and 6,908 ft, median 6,200 ft, over the 7 wells that filed a depth.

Completions filed
Jun 1991 – Mar 2017
7 of 7 wells
Plug dates filed
Feb 2024 – Feb 2026
3 of 7 wells; 4 filed none

Last completion to plug: a median of 30.3 years across the 3 wells that filed both dates, with the middle half between 24.4 years and 32.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

7 wells

42-165328231116,553 ftMar 2017Yes
42-1653272832WR6,908 ftAug 2016Yes
42-1653272681GL6,100 ftAug 2005Feb 2024Yes
42-1653280380GL6,200 ftAug 2005Yes
42-1653272545GL6,200 ftOct 1995Feb 2026Yes
42-1653272749GL6,200 ftJan 1995
42-165016821056,483 ftJun 1991Apr 2025

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 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 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
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 20150049.822.71$0
Mar 20150042.892.93$0
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 20140096.564.18$0
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 201250101.652.00$508
Mar 2012520105.052.22$5,463
Feb 2012530101.102.57$5,358
Jan 201257098.092.73$5,591
Dec 201164096.873.24$6,200
Nov 2011118095.723.31$11,295
Oct 201199084.983.65$8,413
Sep 201184083.623.99$7,024
Aug 2011103083.404.15$8,590
Jul 201199094.144.52$9,320
Jun 201166092.904.64$6,131
May 20111098.134.40$98
Apr 2011200105.964.33$2,119
Mar 201126096.364.06$2,505
Feb 20115085.644.18$428
Jan 201124086.504.59$2,076
Dec 201028085.734.35$2,400
Nov 201026080.843.80$2,102
Oct 201027078.103.51$2,109
Sep 201050072.633.98$3,632
Aug 2010114073.684.42$8,400
Jul 2010133072.554.74$9,649
Jun 201060070.364.91$4,222
May 201027071.124.24$1,920
Apr 201027081.694.12$2,206
Mar 201031078.394.39$2,430
Feb 201027073.585.44$1,987
Jan 201044074.365.96$3,272
Dec 200937071.445.48$2,643
Nov 200947074.593.75$3,506
Oct 200958072.544.11$4,207
Sep 200933065.543.06$2,163
Aug 200954067.423.22$3,641
Jul 200986061.133.46$5,257
Jun 200982066.163.90$5,425
May 200988054.743.93$4,817
Apr 200978046.773.59$3,648
Mar 200986042.144.06$3,624
Feb 2009942632.814.63$3,205
Jan 20091143135.865.37$4,255
Dec 20081193337.105.98$4,612
Nov 20081123355.496.86$6,441
Oct 20081433475.246.92$10,995
Sep 200813318101.767.88$13,676
Aug 200811329114.228.48$13,153
Jul 200811632131.0811.39$15,570
Jun 200816637131.3313.03$22,283
May 200813637123.1711.57$17,179
Apr 200810831110.3110.45$12,238
Mar 200812632101.909.66$13,149
Feb 20081674392.538.77$15,830
Jan 20082090.388.21$181
Dec 20071022688.337.30$9,200
Nov 20071323791.677.29$12,370
Oct 2007973182.856.92$8,251
Sep 20071164175.846.24$9,053
Aug 20071254269.066.39$8,901
Jul 20071324470.906.39$9,640
Jun 20071123562.007.55$7,208
May 20071053458.747.85$6,434
Apr 20071073559.617.81$6,651
Mar 20071103556.927.30$6,517
Feb 2007993155.108.22$5,710
Jan 20071313850.306.73$6,845
Dec 20061423956.656.92$8,314
Nov 20061213154.207.62$6,794
Oct 20061272754.906.01$7,135
Sep 20061283860.085.04$7,882
Aug 20061273368.717.34$8,968
Jul 20061053269.376.34$7,487
Jun 2006772466.286.38$5,257
May 2006812466.016.42$5,501
Apr 2006952864.397.36$6,323
Mar 20061304556.707.08$7,690
Feb 20061294557.597.75$7,778
Jan 20061294160.598.93$8,182
Dec 20051284354.9413.42$7,609
Nov 20051625654.6910.59$9,453
Oct 20051914458.3413.80$11,750
Sep 20051454361.4512.08$9,430
Aug 20051354561.519.80$8,745
Jul 2005902855.697.84$5,232
Jun 20051103752.337.38$6,029
May 20051545145.226.65$7,303
Apr 20051643349.207.36$8,312
Mar 200516610050.377.15$9,077
Feb 20051634245.226.31$7,636
Jan 20051755043.166.32$7,869
Dec 20041563739.866.75$6,468
Nov 20041715445.286.33$8,085
Oct 20042257249.706.52$11,652
Sep 20042227543.245.28$9,996
Aug 200426111442.375.55$11,691
Jul 200424810338.286.08$10,120
Jun 200434414536.106.43$13,351
May 200439917737.486.49$16,104
Apr 200437615534.475.86$13,869
Mar 200436013834.365.53$13,133
Feb 200433514832.455.51$11,686
Jan 200435914732.036.30$12,425
Dec 200336116530.266.30$11,964
Nov 200330414728.804.60$9,431
Oct 200326110128.174.76$7,833
Sep 200324510226.314.75$6,930
Aug 200329010929.765.13$9,190
Jul 200333811029.415.17$10,509
Jun 200330910128.565.98$9,429
May 20033039526.595.97$8,624
Apr 20033349926.675.41$9,443
Mar 200338711431.146.10$12,746
Feb 200334610033.487.93$12,377
Jan 200351814330.315.58$16,499
Dec 200250915526.914.85$14,450
Nov 200249715924.664.14$12,914
Oct 200252416526.464.23$14,563
Sep 200250217527.443.64$14,411
Aug 200252817625.963.16$14,264
Jul 200242014924.583.06$10,780
Jun 200246516323.733.34$11,579
May 200251017524.663.58$13,204
Apr 200260118123.653.51$14,849
Mar 200273622122.003.10$16,878
Feb 200268019718.222.38$12,858
Jan 200282624617.172.38$14,767
Dec 200181625616.932.36$14,420
Nov 200174920918.072.41$14,037
Oct 200159018119.782.53$12,128
Sep 200135712024.262.25$8,931
Aug 200138613024.873.05$9,997
Jul 200140113823.933.20$10,037
Jun 200141514024.563.82$10,728
May 200144110925.524.31$11,724
Apr 200139713924.685.34$10,540
Mar 20013997624.545.38$10,200
Feb 20013636427.755.77$10,442
Jan 20014137427.478.40$11,967
Dec 20004858126.889.12$13,776
Nov 20004926832.215.66$16,232
Oct 20005826631.235.15$18,515
Sep 20003856831.875.19$12,623
Aug 200040613429.644.54$12,642
Jul 200058615428.534.09$17,348
Jun 200053712029.304.40$16,262
May 200055713427.263.68$15,677
Apr 200036611024.513.12$9,313
Mar 20003907228.422.86$11,290
Feb 20003197827.622.73$9,023
Jan 200054511825.272.48$14,065
Dec 19994386224.282.42$10,785
Nov 19996388623.192.43$15,005
Oct 19995526220.982.80$11,755
Sep 199961310021.752.62$13,595
Aug 19997717619.262.88$15,068
Jul 19996776417.892.37$12,263
Jun 19995169715.942.36$8,454
May 19995695615.792.32$9,114
Apr 19995535415.102.21$8,470
Mar 19995106812.471.84$6,485
Feb 1999488709.981.82$4,997
Jan 19996975210.381.90$7,334
Dec 1998318279.201.77$2,973
Nov 19984192910.892.19$4,626
Oct 19987394612.421.97$9,269
Sep 19985873212.592.08$7,457
Aug 19988527711.301.91$9,774
Jul 19987565411.742.24$8,996
Jun 19987465811.242.24$8,515
May 19981,3566012.622.21$17,245
Apr 199886013.042.51$1,121
Mar 199870012.802.31$896
Feb 199881013.952.30$1,130
Jan 199858014.702.15$853
Dec 199784016.322.41$1,371
Nov 199762018.193.09$1,128
Oct 199786019.253.15$1,656
Sep 199791017.742.95$1,614
Aug 199765017.862.55$1,161
Jul 199784017.582.25$1,477
Jun 1997103017.242.26$1,776
May 1997106018.972.31$2,011
Apr 199760017.882.08$1,073
Mar 199789018.951.94$1,687
Feb 199779020.492.21$1,619
Jan 1997157023.483.54$3,686
Dec 199673023.32$1,702
Nov 199653021.97$1,164
Oct 1996101023.31$2,354
Sep 199688022.22$1,955
Aug 1996126020.26$2,553
Jul 199696019.55$1,877
Jun 1996119018.73$2,229
May 1996138019.43$2,681
Apr 1996125021.51$2,689
Mar 1996167019.38$3,236
Feb 19960016.98$0
Jan 1996107017.07$1,826
Dec 1995103017.19$1,771
Nov 1995128016.00$2,048
Oct 199544816815.43$6,913
Sep 199542519616.18$6,877
Aug 199558328015.92$9,281
Jul 199572522615.24$11,049
Jun 199547823616.41$7,844
May 199566422517.56$11,660
Apr 199577759317.73$13,776
Mar 199589866516.44$14,763
Feb 19951,56568516.58$25,948
Jan 19951,040015.92$16,557
Dec 19941,13137815.03$16,999
Nov 19941,02738315.90$16,329
Oct 19941,46635915.58$22,840
Sep 19941,411115.29$21,574
Aug 19941,46718416.13$23,663
Jul 19941,30714717.56$22,951
Jun 19941,48320217.09$25,344
May 19941,36522915.88$21,676
Apr 19941,42724814.14$20,178
Mar 19941,57324912.46$19,600
Feb 19941,09121512.50$13,638
Jan 199497415812.66$12,331
Dec 19931,49827312.33$18,470
Nov 199366210514.49$9,592
Oct 19931,51829915.85$24,060
Sep 19931,26027815.03$18,938
Aug 19931,53435915.66$24,022
Jul 19931,36531815.46$21,103
Jun 19931,24123516.79$20,836
May 19931,40438217.68$24,823
Apr 19932,13950118.05$38,609
Mar 19931,99931518.14$36,262
Feb 19932,11227517.90$37,805
Jan 19932,27126716.93$38,448

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.

Apr 2012 — as filed, then multipliedworked
Oil                    5 bbl  × $101.65 =       $508
Casinghead gas         0 Mcf  × $  2.00 =         $0

────────────────────────────────────────────────────
Month total                                     $508

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. 8A/O/66633 is the state's own key, not one this site invented.