HALFF "47"

Operated by ATLAS OPERATING LLC (P-5 36587) in the SPRABERRY (TREND AREA CL. FK.) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 10523District 7CField 85279400OilCasinghead gasSaveExport
Value, all time
$6.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$226 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 161 leases and 210 wells, and the rule below applies to all of them.

Discovered
1955-05-11
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,200 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 acres.

The Commission's schedule remark for this field reads: SEE DIST. 8 FOR MORE INFORMATION

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
OilDisposition138,333 bbl$5,823,632
Casinghead gasProduction252,374 Mcf$740,175
Total$6,563,807

89,310 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.

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 31.3724, -102.0125. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

31.37272, -102.01301 · 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
42.9%
3 of 7 wells
With a plug date
42.9%
3 of 7 wells
Median depth
8,783 ft
7 wells filed one
Completion to plug
28.4 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
342.9%
A plug date is filed
342.9%
BothOn the schedule and plugged. Neither fact cancels the other.
342.9%
NeitherNo plug date, and not on the schedule.
457.1%

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 8,759 and 9,063 ft, median 8,783 ft, over the 7 wells that filed a depth.

Completions filed
Jan 1984 – Apr 2022
7 of 7 wells
Plug dates filed
May 1986 – Oct 2015
3 of 7 wells; 4 filed none

Last completion to plug: a median of 28.4 years across the 3 wells that filed both dates, with the middle half between 14.8 years and 29.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

7 wells

42-4614171978,770 ftApr 2022
42-4613169328,888 ftMar 1985May 1986Yes
42-4613169548,759 ftJan 1985
42-4613169218,783 ftSep 1984
42-4613183969,063 ftSep 1984Oct 2015Yes
42-4613183858,865 ftJan 1984Jun 2012Yes
42-4613169438,767 ftJan 1984

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 20263470106.413.05$36,924
Apr 2026545098.932.87$53,917
Mar 2026536089.753.15$48,106
Feb 20263629463.503.75$23,340
Jan 20263567659.138.00$21,658
Dec 2025180056.664.41$10,199
Nov 202517813558.593.93$10,959
Oct 20253501959.383.30$20,846
Sep 20250262.743.08$6
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250166.483.13$3
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250567.704.27$21
Feb 20251697470.884.34$12,300
Jan 2025010674.324.28$454
Dec 202453420968.993.12$37,493
Nov 202418012369.052.20$12,699
Oct 202435344871.372.28$26,216
Sep 202452413069.612.36$36,783
Aug 20243561775.632.06$26,959
Jul 202434445679.932.15$28,475
Jun 202434527478.082.63$27,659
May 202471617878.812.20$56,819
Apr 202435935684.451.66$30,908
Mar 202453035080.301.55$43,100
Feb 202435639576.091.78$27,793
Jan 202454448773.023.30$41,329
Dec 202351837071.262.61$37,879
Nov 202353242377.892.81$42,625
Oct 202353553685.443.09$47,365
Sep 202335039589.042.74$32,244
Aug 202371362780.522.67$59,087
Jul 202353352774.852.64$41,287
Jun 202353558868.962.26$38,222
May 202387667270.622.23$63,360
Apr 2023711078.122.24$55,543
Mar 2023724072.852.39$52,743
Feb 2023710075.112.47$53,328
Jan 2023693076.533.39$53,035
Dec 2022369076.415.73$28,195
Nov 20221,225085.005.65$104,125
Oct 20221,080087.185.86$94,154
Sep 2022367084.888.16$31,151
Aug 20221,527094.529.13$144,332
Jul 20221810101.587.54$18,386
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 2019155055.302.75$8,572
Oct 2019176053.472.42$9,411
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 2017179049.292.98$8,823
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 2016148046.193.09$6,836
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 2015186638.792.17$7,228
Oct 20150043.552.43$0
Sep 201504242.992.76$116
Aug 2015184040.162.87$7,389
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 2015183555.212.96$10,118
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20141912254.693.59$10,525
Nov 2014183070.464.25$12,894
Oct 2014181078.303.90$14,172
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 2014189094.734.73$17,904
Apr 20141763395.944.81$17,044
Mar 201403695.895.06$182
Feb 20141803497.406.19$17,743
Jan 201401690.404.86$78
Dec 201302391.824.35$100
Nov 201302088.853.74$75
Oct 201303497.423.78$129
Sep 20130113104.113.72$420
Aug 20131787104.253.52$18,581
Jul 201300102.523.72$0
Jun 2013015094.403.93$590
May 2013174094.834.15$16,500
Apr 2013189093.964.28$17,758
Mar 2013193093.623.91$18,069
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 2012377089.383.40$33,696
Sep 20120094.672.92$0
Aug 201202092.662.91$58
Jul 20121928985.133.02$16,614
Jun 2012177079.822.52$14,128
May 2012195091.612.49$17,864
Apr 201204101.652.00$8
Mar 20123720105.052.22$39,079
Feb 20121990101.102.57$20,119
Jan 2012199098.092.73$19,520
Dec 20110096.873.24$0
Nov 2011577095.723.31$55,230
Oct 201105784.983.65$208
Sep 201101083.623.99$40
Aug 201119630083.404.15$17,591
Jul 201116851994.144.52$18,160
Jun 201119379792.904.64$21,628
May 201118024098.134.40$18,721
Apr 20111870105.964.33$19,815
Mar 2011149596.364.06$14,378
Feb 20111811985.644.18$15,580
Jan 201173514586.504.59$64,243
Dec 201017653685.734.35$17,419
Nov 2010185080.843.80$14,955
Oct 201017749978.103.51$15,575
Sep 201068441972.633.98$51,346
Aug 201035541673.684.42$27,995
Jul 201018236472.554.74$14,928
Jun 201018110370.364.91$13,241
May 2010017471.124.24$737
Apr 201018228381.694.12$16,034
Mar 20103632778.394.39$28,574
Feb 20101711173.585.44$12,642
Jan 20101774974.365.96$13,454
Dec 20093572371.445.48$25,630
Nov 200953224774.593.75$40,609
Oct 200917731672.544.11$14,138
Sep 200917631865.543.06$12,510
Aug 200915828967.423.22$11,583
Jul 200917937561.133.46$12,241
Jun 20090066.163.90$0
May 200934859454.743.93$21,381
Apr 200936281446.773.59$19,851
Mar 20093611,06042.144.06$19,515
Feb 200933086232.814.63$14,821
Jan 200970965635.865.37$28,948
Dec 200836768937.105.98$17,734
Nov 2008013555.496.86$926
Oct 200835138875.246.92$29,095
Sep 2008354502101.767.88$39,977
Aug 2008510761114.228.48$64,708
Jul 2008172555131.0811.39$28,867
Jun 2008334120131.3313.03$45,428
May 2008522413123.1711.57$69,075
Apr 2008708310110.3110.45$81,340
Mar 2008354470101.909.66$40,615
Feb 200853237192.538.77$52,480
Jan 200835340690.388.21$35,236
Dec 200770924288.337.30$64,393
Nov 200752249991.677.29$51,490
Oct 200717742782.856.92$17,620
Sep 200717849475.846.24$16,584
Aug 200735765869.066.39$28,858
Jul 200769964970.906.39$53,705
Jun 200717888362.007.55$17,701
May 200788886658.747.85$58,956
Apr 200735471259.617.81$26,659
Mar 200717763656.927.30$14,719
Feb 200753068655.108.22$34,839
Jan 200753871650.306.73$31,878
Dec 200654380056.656.92$36,296
Nov 200653681354.207.62$35,244
Oct 200670788154.906.01$44,112
Sep 200653680760.085.04$36,268
Aug 200618381268.717.34$18,534
Jul 200635079869.376.34$29,341
Jun 200668879166.286.38$50,650
May 200653062766.016.42$39,014
Apr 200673371964.397.36$52,490
Mar 20063841,07056.707.08$29,352
Feb 20065701,66757.597.75$45,747
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 200539229858.3413.80$26,980
Sep 200572763061.4512.08$52,284
Aug 200588471161.519.80$61,340
Jul 200534481455.697.84$25,542
Jun 200551272152.337.38$32,115
May 200516769745.226.65$12,188
Apr 200553678449.207.36$32,142
Mar 200569570150.377.15$40,023
Feb 200536372345.226.31$20,978
Jan 200572171243.166.32$35,620
Dec 200417737939.866.75$9,614
Nov 200436561145.286.33$20,395
Oct 200436899149.706.52$24,746
Sep 20043431,03243.245.28$20,284
Aug 20045481,13542.375.55$29,519
Jul 20045451,14738.286.08$27,841
Jun 20043681,11436.106.43$20,451
May 20045521,34937.486.49$29,450
Apr 20043331,77734.475.86$21,889
Mar 20045501,98134.365.53$29,853
Feb 20045551,82832.455.51$28,081
Jan 20043651,73132.036.30$22,596
Dec 20037441,43830.266.30$31,575
Nov 20037301,55128.804.60$28,151
Oct 20033641,87828.174.76$19,192
Sep 20033621,80426.314.75$18,092
Aug 20033641,63129.765.13$19,199
Jul 20035481,36429.415.17$23,170
Jun 200336096628.565.98$16,061
May 20035421,08726.595.97$20,904
Apr 200354582626.675.41$19,002
Mar 20035521,49331.146.10$26,291
Feb 20031891,55833.487.93$18,676
Jan 20039272,07830.315.58$39,697
Dec 20027331,09426.914.85$25,035
Nov 200236576824.664.14$12,178
Oct 200218783826.464.23$8,492
Sep 20023631,25527.443.64$14,523
Aug 200254149925.963.16$15,623
Jul 200254061024.583.06$15,141
Jun 200218195923.733.34$7,497
May 200254984924.663.58$16,581
Apr 20025411,13823.653.51$16,792
Mar 20025491,40522.003.10$16,437
Feb 20025061,21018.222.38$12,094
Jan 200234279917.172.38$7,770
Dec 20016701,22216.932.36$14,232
Nov 200170185518.072.41$14,724
Oct 20013331,37219.782.53$10,056
Sep 20016911,22624.262.25$19,524
Aug 200133461924.873.05$10,196
Jul 20015241,19623.933.20$16,363
Jun 20011791,11024.563.82$8,641
May 20015221,13025.524.31$18,189
Apr 200136989924.685.34$13,903
Mar 200154287624.545.38$18,010
Feb 20015411,33727.755.77$22,723
Jan 20015261,45027.478.40$26,627
Dec 20005381,56926.889.12$28,775
Nov 20005291,54832.215.66$25,798
Oct 20005671,29531.235.15$24,371
Sep 20005341,19931.875.19$23,237
Aug 20005691,23229.644.54$22,459
Jul 20005421,19628.534.09$20,355
Jun 20005351,06629.304.40$20,363
May 200054599827.263.68$18,529
Apr 200072199724.513.12$20,778
Mar 20007381,20628.422.86$24,423
Feb 20003641,06827.622.73$12,966
Jan 200054084025.272.48$15,729
Dec 199955965424.282.42$15,158
Nov 199955976723.192.43$14,830
Oct 199954977720.982.80$13,697
Sep 199936673921.752.62$9,896
Aug 19995611,19819.262.88$14,250
Jul 19995631,06817.892.37$12,606
Jun 19995651,13015.942.36$11,675
May 199938175115.792.32$7,759
Apr 199957192615.102.21$10,667
Mar 199957888012.471.84$8,825
Feb 19995678259.981.82$7,158
Jan 19995731,03110.381.90$7,907
Dec 19985881,0569.201.77$7,282
Nov 19983781,16410.892.19$6,661
Oct 19985751,40212.421.97$9,902
Sep 1998565012.592.08$7,113
Aug 19985611,16711.301.91$8,565
Jul 19985611,28111.742.24$9,452
Jun 19987471,39011.242.24$11,506
May 19987491,51912.622.21$12,804
Apr 19983811,53413.042.51$8,811
Mar 19983821,26312.802.31$7,806
Feb 19985741,48813.952.30$11,428
Jan 19987491,64514.702.15$14,555
Dec 19975701,29716.322.41$12,430
Nov 19975611,23518.193.09$14,019
Oct 19975711,09119.253.15$14,428
Sep 19975671,25917.742.95$13,779
Aug 19975661,48417.862.55$13,900
Jul 19977481,58417.582.25$16,709
Jun 19979351,56617.242.26$19,654
May 19971921,25918.972.31$6,549
Apr 19973811,14017.882.08$9,187
Mar 19975811,91218.951.94$14,718
Feb 19975791,66520.492.21$15,537
Jan 19977821,82023.483.54$24,804
Dec 19965861,87223.32$13,666
Nov 19965831,83221.97$12,809
Oct 19967671,97523.31$17,879
Sep 19965691,79722.22$12,643
Aug 19965741,94420.26$11,629
Jul 19967712,04619.55$15,073
Jun 19967321,96918.73$13,710
May 19963942,03419.43$7,655
Apr 19969531,20521.51$20,499
Mar 1996383719.38$7,423
Feb 19967871,75816.98$13,363
Jan 19967781,81917.07$13,280
Dec 19955801,84917.19$9,970
Nov 19959671,56316.00$15,472
Oct 19953901,91915.43$6,018
Sep 19957691,92216.18$12,442
Aug 19955611,91115.92$8,931
Jul 19957561,91215.24$11,521
Jun 19957601,90316.41$12,472
May 19955571,97317.56$9,781
Apr 19957691,95617.73$13,634
Mar 19957511,94316.44$12,346
Feb 19955741,71416.58$9,517
Jan 19957421,85315.92$11,813
Dec 19947581,93515.03$11,393
Nov 19945661,90615.90$8,999
Oct 19947572,07615.58$11,794
Sep 19947591,99915.29$11,605
Aug 19947571,94916.13$12,210
Jul 19945672,17517.56$9,957
Jun 19947552,15617.09$12,903
May 19947531,79915.88$11,958
Apr 19947541,87414.14$10,662
Mar 19947451,91212.46$9,283
Feb 19945731,74312.50$7,163
Jan 19949201,98212.66$11,647
Dec 19939401,80012.33$11,590
Nov 19935531,95114.49$8,013
Oct 19937391,99315.85$11,713
Sep 19937151,91615.03$10,746
Aug 19938822,10015.66$13,812
Jul 19935312,02915.46$8,209
Jun 19937092,06816.79$11,904
May 19939062,10317.68$16,018
Apr 19937221,41218.05$13,032
Mar 19935112,12318.14$9,270
Feb 19939401,60817.90$16,826
Jan 19937342,02516.93$12,427

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                  347 bbl  × $106.41 =    $36,924
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $36,924

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. 7C/O/10523 is the state's own key, not one this site invented.