UNION "A"

Operated by ACTIVE IRON ENERGY, LLC (P-5 103194) in the OLD COLONY (L. CLEARFORK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 66170District 8AField 66958500Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$2.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$61 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 4 leases and 4 wells, and the rule below applies to all of them.

Discovered
1985-08-26
as the register files it
Field class
Oil
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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.

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
OilDisposition48,262 bbl$2,457,078
Casinghead gasProduction119,189 Mcf$411,987
Total$2,869,066

21,859 Mcf of this lease's gas, across 48 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.

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 2026120188106.413.05$13,342
Apr 2026018898.932.87$540
Mar 2026018889.753.15$592
Feb 2026018863.503.75$705
Jan 2026018859.138.00$1,504
Dec 2025018856.664.41$830
Nov 2025018858.593.93$738
Oct 202517518859.383.30$11,013
Sep 2025021962.743.08$674
Aug 202511629663.933.01$8,308
Jul 202513826666.743.32$10,092
Jun 202518117066.483.13$12,565
May 20250060.553.23$0
Apr 202518025462.363.54$12,125
Mar 2025025467.704.27$1,084
Feb 202518126270.884.34$13,967
Jan 202517728774.324.28$14,383
Dec 2024030368.993.12$946
Nov 202416228069.052.20$11,802
Oct 2024030471.372.28$694
Sep 202417530069.612.36$12,891
Aug 202416331075.632.06$12,967
Jul 202407079.932.15$150
Jun 202416819378.082.63$13,626
May 202417732678.812.20$14,666
Apr 202417129884.451.66$14,935
Mar 2024030680.301.55$473
Feb 202417826576.091.78$14,017
Jan 2024018873.023.30$620
Dec 202317628371.262.61$13,281
Nov 2023026777.892.81$750
Oct 202317528485.443.09$15,829
Sep 202317329289.042.74$16,203
Aug 2023031980.522.67$853
Jul 202318233574.852.64$14,508
Jun 202318832668.962.26$13,701
May 2023030770.622.23$684
Apr 202317731978.122.24$14,541
Mar 202317631272.852.39$13,568
Feb 2023025275.112.47$621
Jan 202317827976.533.39$14,568
Dec 2022030076.415.73$1,719
Nov 202218527585.005.65$17,278
Oct 202217626987.185.86$16,921
Sep 2022029684.888.16$2,416
Aug 202216425794.529.13$17,847
Jul 20220323101.587.54$2,436
Jun 2022173296115.097.98$22,272
May 2022174305109.378.43$21,602
Apr 20220271104.226.84$1,853
Mar 2022174304108.885.08$20,488
Feb 202217028091.054.86$16,839
Jan 2022029181.844.54$1,320
Dec 202117532371.323.90$13,740
Nov 202117328777.435.24$14,898
Oct 2021030479.795.71$1,737
Sep 202117329869.865.35$13,680
Aug 2021031166.024.22$1,313
Jul 202116931170.783.98$13,200
Jun 202117129169.493.38$12,867
May 2021024963.483.02$751
Apr 202117515460.362.76$10,988
Mar 202117516861.302.72$11,184
Feb 2021027757.805.55$1,537
Jan 202117230650.412.81$9,530
Dec 202017330644.642.68$8,541
Nov 2020029738.772.71$804
Oct 202017029836.972.48$7,023
Sep 202016931337.091.99$6,891
Aug 202015837039.982.39$7,199
Jul 2020031238.371.83$569
Jun 202016430034.901.69$6,231
May 2020032316.921.81$586
Apr 202017929314.751.80$3,169
Mar 202017531330.341.86$5,891
Feb 202017028149.881.98$9,036
Jan 2020029257.252.09$612
Dec 201917629059.012.30$11,054
Nov 2019026655.302.75$732
Oct 201916930253.472.42$9,767
Sep 201917434555.052.66$10,495
Aug 2019031653.112.30$728
Jul 201916632556.272.46$10,140
Jun 201916330652.782.49$9,365
May 201917530758.482.74$11,075
Apr 2019028562.632.75$784
Mar 201916430356.803.06$10,243
Feb 201916227150.852.79$8,994
Jan 2019030246.033.23$975
Dec 201817130246.594.19$9,231
Nov 201817329352.934.24$10,398
Oct 2018029061.443.40$985
Sep 201816230959.543.11$10,606
Aug 201817931859.403.07$11,608
Jul 2018033265.142.93$973
Jun 201833932660.183.08$21,404
May 2018032165.382.90$931
Apr 201818031663.842.90$12,408
Mar 2018033361.222.79$928
Feb 201834331461.782.77$22,059
Jan 2018025962.874.01$1,038
Dec 2017023057.272.92$672
Nov 201717515855.423.12$10,191
Oct 201716227549.292.98$8,805
Sep 2017030147.523.09$929
Aug 201717431245.373.00$8,832
Jul 201717132743.873.09$8,511
Jun 201716630042.493.09$7,980
May 2017031045.373.26$1,012
Apr 201718029647.933.21$9,578
Mar 2017031046.772.98$925
Feb 2017028050.452.95$827
Jan 201733831049.413.42$17,760
Dec 2016030848.763.72$1,147
Nov 201617230042.492.64$8,102
Oct 2016029846.193.09$921
Sep 201633830041.553.10$14,974
Aug 2016031041.442.92$907
Jul 201617331141.622.92$8,110
Jun 2016030045.352.69$806
May 201616431042.521.99$7,591
Apr 201617818536.561.99$6,876
Mar 2016031033.011.79$556
Feb 201617728226.472.06$5,267
Jan 2016030127.352.36$712
Dec 201516630732.362.00$5,986
Nov 201517529938.792.17$7,436
Oct 2015029543.552.43$716
Sep 201517630742.992.76$8,413
Aug 2015031640.162.87$908
Jul 201517431448.152.95$9,303
Jun 201516826756.152.88$10,203
May 201516912955.212.96$9,712
Apr 2015021249.822.71$574
Mar 201517310342.892.93$7,722
Feb 201517718844.662.98$8,464
Jan 201517029043.433.10$8,282
Dec 2014030654.693.59$1,099
Nov 201417528870.464.25$13,555
Oct 201417928478.303.90$15,124
Sep 2014024086.164.05$971
Aug 201418124989.394.04$17,184
Jul 201417720696.564.18$17,952
Jun 2014025598.164.74$1,208
May 201418023594.734.73$18,162
Apr 2014027095.944.81$1,298
Mar 201434727995.895.06$34,685
Feb 2014021297.406.19$1,313
Jan 201416830990.404.86$16,689
Dec 201317430391.824.35$17,296
Nov 2013029988.853.74$1,118
Oct 201318330997.423.78$18,996
Sep 2013181290104.113.72$19,922
Aug 20130299104.253.52$1,053
Jul 2013184191102.523.72$19,574
Jun 201318315894.403.93$17,897
May 2013021194.834.15$875
Apr 201318126793.964.28$18,150
Mar 201318430193.623.91$18,404
Feb 2013024191.233.42$824
Jan 20131837691.603.42$17,023
Dec 2012176086.773.42$15,272
Nov 201218027986.953.62$16,662
Oct 2012029589.383.40$1,003
Sep 201217911594.672.92$17,282
Aug 201217712892.662.91$16,773
Jul 2012030485.133.02$918
Jun 201218210679.822.52$14,794
May 2012031591.612.49$784
Apr 2012179114101.652.00$18,423
Mar 2012183304105.052.22$19,900
Feb 20120271101.102.57$697
Jan 201218431098.092.73$18,896
Dec 201118223296.873.24$18,382
Nov 2011017895.723.31$589
Oct 201117230384.983.65$15,722
Sep 201117630083.623.99$15,913
Aug 201117629383.404.15$15,894
Jul 2011012294.144.52$551
Jun 20111841492.904.64$17,159
May 2011184098.134.40$18,056
Apr 20110106105.964.33$459
Mar 201118211096.364.06$17,984
Feb 2011010085.644.18$418
Jan 201118512186.504.59$16,558
Dec 201018415085.734.35$16,426
Nov 2010014680.843.80$554
Oct 201018213278.103.51$14,677
Sep 2010013272.633.98$525
Aug 20101719473.684.42$13,015
Jul 201005272.554.74$246
Jun 201018420970.364.91$13,973
May 201017728571.124.24$13,795
Apr 201017631481.694.12$15,672
Mar 2010032778.394.39$1,435
Feb 201018128973.585.44$14,891
Jan 201018323074.365.96$14,980
Dec 200918530871.445.48$14,905
Nov 200918130674.593.75$14,649
Oct 2009012272.544.11$501
Sep 200918129165.543.06$12,755
Aug 200918231667.423.22$13,287
Jul 200917832961.133.46$12,021
Jun 2009030966.163.90$1,204
May 200918032654.743.93$11,133
Apr 200917629646.773.59$9,293
Mar 2009029742.144.06$1,206
Feb 200919427832.814.63$7,653
Jan 200919630535.865.37$8,667
Dec 200819629937.105.98$9,059
Nov 2008029555.496.86$2,024
Oct 200819031075.246.92$16,441
Sep 2008196302101.767.88$22,324
Aug 2008190322114.228.48$24,433
Jul 20080323131.0811.39$3,679
Jun 2008178300131.3313.03$27,287
May 2008175308123.1711.57$25,120
Apr 20080291110.3110.45$3,042
Mar 2008162292101.909.66$19,330
Feb 200817723892.538.77$18,465
Jan 200817729690.388.21$18,426
Dec 2007025588.337.30$1,862
Nov 200717825291.677.29$18,155
Oct 200717831382.856.92$16,914
Sep 200717729775.846.24$15,278
Aug 200717531269.066.39$14,079
Jul 2007031270.906.39$1,993
Jun 200717728562.007.55$13,125
May 200717728258.747.85$12,610
Apr 2007030359.617.81$2,365
Mar 200717929856.927.30$12,365
Feb 200718024455.108.22$11,923
Jan 200717829450.306.73$10,931
Dec 200617729856.656.92$12,089
Nov 2006029554.207.62$2,247
Oct 200617930254.906.01$11,643
Sep 200618129760.085.04$12,371
Aug 200617532468.717.34$14,402
Jul 2006032069.376.34$2,030
Jun 200617629666.286.38$13,555
May 200618132166.016.42$14,010
Apr 2006030664.397.36$2,252
Mar 200618624056.707.08$12,246
Feb 200618414457.597.75$11,713
Jan 2006025560.598.93$2,278
Dec 200518431854.9413.42$14,375
Nov 200517632054.6910.59$13,014
Oct 200517629858.3413.80$14,379
Sep 2005030161.4512.08$3,636
Aug 200517630761.519.80$13,833
Jul 200517729755.697.84$12,187
Jun 200517629252.337.38$11,365
May 2005031745.226.65$2,108
Apr 200517729949.207.36$10,909
Mar 200517623250.377.15$10,525
Feb 2005026045.226.31$1,641
Jan 200517828343.166.32$9,472
Dec 200418120139.866.75$8,572
Nov 200417627345.286.33$9,697
Oct 2004026949.706.52$1,753
Sep 200418526543.245.28$9,400
Aug 200417430042.375.55$9,038
Jul 2004023538.286.08$1,430
Jun 200417825336.106.43$8,053
May 200417631637.486.49$8,649
Apr 200416829934.475.86$7,543
Mar 200417629734.365.53$7,690
Feb 2004028032.455.51$1,543
Jan 200416629532.036.30$7,175
Dec 200317729230.266.30$7,196
Nov 2003028328.804.60$1,300
Oct 200317229928.174.76$6,268
Sep 200318227626.314.75$6,099
Aug 200318027029.765.13$6,742
Jul 2003029429.415.17$1,520
Jun 200317828028.565.98$6,759
May 200317828726.595.97$6,447
Apr 200318326926.675.41$6,335
Mar 2003027031.146.10$1,646
Feb 200317824133.487.93$7,870
Jan 200317624730.315.58$6,713
Dec 2002021326.914.85$1,034
Nov 200218120524.664.14$5,312
Oct 2002022826.464.23$964
Sep 200217820327.443.64$5,622
Aug 2002020725.963.16$655
Jul 200217817524.583.06$4,911
Jun 2002018623.733.34$621
May 200218114024.663.58$4,965
Apr 2002014723.653.51$516
Mar 200218129122.003.10$4,885
Feb 2002018718.222.38$444
Jan 200218314017.172.38$3,475
Dec 2001016716.932.36$395
Nov 200117731518.072.41$3,956
Oct 2001033919.782.53$857
Sep 200118033224.262.25$5,114
Aug 200117837824.873.05$5,581
Jul 2001035123.933.20$1,122
Jun 200118033424.563.82$5,698
May 2001174025.524.31$4,440
Apr 2001040224.685.34$2,145
Mar 200135842124.545.38$11,049
Feb 2001035827.755.77$2,065
Jan 200118238127.478.40$8,199
Dec 200018435926.889.12$8,221
Nov 2000037832.215.66$2,139
Oct 200018338931.235.15$7,717
Sep 200017837731.875.19$7,628
Aug 2000040029.644.54$1,816
Jul 200017641728.534.09$6,727
Jun 2000038829.304.40$1,706
May 200018336527.263.68$6,332
Apr 200035437324.513.12$9,839
Mar 2000036528.422.86$1,044
Feb 2000033127.622.73$902
Jan 200018533725.272.48$5,511
Dec 199918534524.282.42$5,328
Nov 1999033423.192.43$813
Oct 199918534720.982.80$4,854
Sep 199918033721.752.62$4,798
Aug 1999034219.262.88$983
Jul 1999037017.892.37$878
Jun 199917335515.942.36$3,596
May 199917036115.792.32$3,522
Apr 199917332415.102.21$3,328
Mar 1999033912.471.84$623
Feb 19991683099.981.82$2,238
Jan 199934234610.381.90$4,207
Dec 199802909.201.77$514
Nov 1998035310.892.19$772
Oct 1998030912.421.97$608
Sep 199834032312.592.08$4,953
Aug 199816934211.301.91$2,562
Jul 1998024411.742.24$546
Jun 1998025111.242.24$562
May 1998027612.622.21$609
Apr 199833625513.042.51$5,020
Mar 1998027512.802.31$635
Feb 199816925613.952.30$2,946
Jan 199818629114.702.15$3,361
Dec 1997029216.322.41$704
Nov 199716929318.193.09$3,979
Oct 1997029819.253.15$939
Sep 199717732417.742.95$4,097
Aug 1997038017.862.55$971
Jul 199718037017.582.25$3,996
Jun 199718839217.242.26$4,126
May 1997040218.972.31$928
Apr 199735938217.882.08$7,215
Mar 1997041918.951.94$813
Feb 1997037220.492.21$821
Jan 199718242023.483.54$5,760
Dec 1996041323.32$0
Nov 199634836721.97$7,646
Oct 1996043123.31$0
Sep 199617147822.22$3,800
Aug 1996051420.26$0
Jul 199618653819.55$3,636
Jun 199618852118.73$3,521
May 1996054119.43$0
Apr 199621752021.51$4,668
Mar 199619849519.38$3,837
Feb 199618948016.98$3,209
Jan 1996049917.07$0
Dec 199531350417.19$5,380
Nov 1995049416.00$0
Oct 199519459015.43$2,993
Sep 199518052016.18$2,912
Aug 199519751115.92$3,136
Jul 1995043315.24$0
Jun 199518318416.41$3,003
May 199519917417.56$3,494
Apr 199518852617.73$3,333
Mar 1995054216.44$0
Feb 199519045116.58$3,150
Jan 199516548515.92$2,627
Dec 1994046615.03$0
Nov 19941718715.90$2,719
Oct 199419917215.58$3,100
Sep 199415836615.29$2,416
Aug 199417757216.13$2,855
Jul 199416750017.56$2,933
Jun 199417945817.09$3,059
May 1994037515.88$0
Apr 199417638914.14$2,489
Mar 199417741712.46$2,205
Feb 199417741912.50$2,213
Jan 199417149612.66$2,165
Dec 199317849312.33$2,195
Nov 199316947914.49$2,449
Oct 199317750715.85$2,805
Sep 199317152315.03$2,570
Aug 199317053615.66$2,662
Jul 199317252915.46$2,659
Jun 199316848316.79$2,821
May 199317251917.68$3,041
Apr 199317146718.05$3,087
Mar 199317549618.14$3,175
Feb 199316344317.90$2,918
Jan 199318645616.93$3,149

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                  120 bbl  × $106.41 =    $12,769
Casinghead gas       188 Mcf  × $  3.05 =       $573

────────────────────────────────────────────────────
Month total                                  $13,342

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/66170 is the state's own key, not one this site invented.