HALFF-AMACKER

Operated by CIVITAS PERMIAN OPERATING, LLC (P-5 101577) in the WILLRODE (STRAWN 9550) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4996District 7CField 97773830OilCasinghead gasSaveExport
Value, all time
$5.8 M
Jan 1993 – May 2026
Value, last 12 filed months
$17 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 1 leases and 1 wells, and the rule below applies to all of them.

Discovered
1966-09-23
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

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
OilDisposition77,350 bbl$4,067,299
Casinghead gasProduction574,496 Mcf$1,716,781
Total$5,784,079

33,205 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 (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 31.3437, -102.1568. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.34366, -102.15682 · 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
no depth filed
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.

1 well

42-461105271 L

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 20261620106.413.05$17,238
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 202401775.632.06$35
Jul 2024018879.932.15$404
Jun 2024020378.082.63$535
May 2024022578.812.20$495
Apr 202407184.451.66$118
Mar 202406180.301.55$94
Feb 2024012576.091.78$223
Jan 202406073.023.30$198
Dec 202308071.262.61$209
Nov 202307277.892.81$202
Oct 202303785.443.09$114
Sep 2023028089.042.74$766
Aug 2023015380.522.67$409
Jul 202315158374.852.64$12,843
Jun 202331969468.962.26$23,566
May 202317871170.622.23$14,154
Apr 202336067378.122.24$29,629
Mar 202336161572.852.39$27,771
Feb 2023061475.112.47$1,514
Jan 2023069276.533.39$2,344
Dec 202236169376.415.73$31,554
Nov 2022062385.005.65$3,518
Oct 202237369287.185.86$36,576
Sep 202237063284.888.16$36,565
Aug 2022075994.529.13$6,928
Jul 20220764101.587.54$5,762
Jun 2022549579115.097.98$67,803
May 20220196109.378.43$1,653
Apr 20220340104.226.84$2,325
Mar 2022187381108.885.08$22,295
Feb 2022050891.054.86$2,468
Jan 202237567581.844.54$33,753
Dec 2021070471.323.90$2,745
Nov 202136768477.435.24$31,999
Oct 2021072079.795.71$4,114
Sep 202136271169.865.35$29,094
Aug 2021073566.024.22$3,102
Jul 202136882370.783.98$29,324
Jun 2021057769.493.38$1,951
May 202136970263.483.02$25,543
Apr 2021070560.362.76$1,945
Mar 202136842561.302.72$23,713
Feb 2021015357.805.55$849
Jan 2021021350.412.81$599
Dec 202037126744.642.68$17,276
Nov 202036933238.772.71$15,205
Oct 2020037336.972.48$924
Sep 202036237937.091.99$14,181
Aug 2020040239.982.39$959
Jul 20203636438.371.83$14,045
Jun 2020036134.901.69$610
May 2020050016.921.81$907
Apr 202054848714.751.80$8,962
Mar 2020075630.341.86$1,403
Feb 20203629049.881.98$18,235
Jan 20203612357.252.09$20,715
Dec 2019011659.012.30$267
Nov 20193238155.302.75$18,085
Oct 2019047053.472.42$1,137
Sep 2019036655.052.66$973
Aug 201921261753.112.30$12,681
Jul 2019020856.272.46$512
Jun 201940152.782.49$2,114
May 201939058.482.74$2,281
Apr 201928519662.632.75$18,389
Mar 201910532556.803.06$6,959
Feb 20199322750.852.79$5,363
Jan 20199032946.033.23$5,205
Dec 20186222946.594.19$3,847
Nov 201811240452.934.24$7,640
Oct 20186030261.443.40$4,713
Sep 201814645559.543.11$10,107
Aug 201812550159.403.07$8,961
Jul 201814682165.142.93$11,918
Jun 20188981560.183.08$7,864
May 201811654265.382.90$9,156
Apr 201811768363.842.90$9,451
Mar 201811663661.222.79$8,874
Feb 20189455761.782.77$7,348
Jan 201818245962.874.01$13,283
Dec 20178673357.272.92$7,067
Nov 20178060355.423.12$6,314
Oct 201720850349.292.98$11,753
Sep 201710655447.523.09$6,747
Aug 201711376245.373.00$7,416
Jul 201711052843.873.09$6,456
Jun 201710040642.493.09$5,502
May 201734421345.373.26$16,302
Apr 201712824647.933.21$6,925
Mar 2017023446.772.98$698
Feb 2017023550.452.95$694
Jan 201712830149.413.42$7,354
Dec 201623528348.763.72$12,512
Nov 2016016542.492.64$436
Oct 201622724646.193.09$11,245
Sep 2016136041.553.10$5,651
Aug 2016284041.442.92$11,769
Jul 201615110741.622.92$6,598
Jun 2016026845.352.69$720
May 201628545642.521.99$13,026
Apr 201616023736.561.99$6,321
Mar 201612056733.011.79$4,978
Feb 201611735426.472.06$3,828
Jan 201618330527.352.36$5,726
Dec 201513264932.362.00$5,570
Nov 201530139138.792.17$12,523
Oct 201517841643.552.43$8,761
Sep 201523324842.992.76$10,701
Aug 201534922040.162.87$14,648
Jul 201533731948.152.95$17,166
Jun 201522513156.152.88$13,011
May 201523424555.212.96$13,643
Apr 201523619749.822.71$12,291
Mar 201546352542.892.93$21,399
Feb 201524544844.662.98$12,275
Jan 201523728943.433.10$11,189
Dec 201435244454.693.59$20,845
Nov 201424323770.464.25$18,129
Oct 201435633978.303.90$29,197
Sep 20142215686.164.05$19,268
Aug 2014228789.394.04$20,409
Jul 201422110696.564.18$21,783
Jun 201422623698.164.74$23,302
May 201447910094.734.73$45,848
Apr 201424312295.944.81$23,900
Mar 201423627895.895.06$24,036
Feb 201424419797.406.19$24,985
Jan 201422944190.404.86$22,845
Dec 201324219791.824.35$23,078
Nov 201323332988.853.74$21,932
Oct 201345737297.423.78$45,927
Sep 2013246442104.113.72$27,254
Aug 2013224333104.253.52$24,525
Jul 2013471396102.523.72$49,759
Jun 20132047694.403.93$3,760
May 201323950494.834.15$24,756
Apr 201324664093.964.28$25,855
Mar 201323677093.623.91$25,107
Feb 201336068091.233.42$35,168
Jan 201335660791.603.42$34,685
Dec 201224867286.773.42$23,817
Nov 201224258186.953.62$23,148
Oct 201224570189.383.40$24,281
Sep 201222846194.672.92$22,930
Aug 201225285792.662.91$25,843
Jul 201246888885.133.02$42,523
Jun 201223253279.822.52$19,858
May 201226178791.612.49$25,869
Apr 2012353886101.652.00$37,652
Mar 2012245768105.052.22$27,444
Feb 2012486643101.102.57$50,787
Jan 20122261198.092.73$3,829
Dec 201149775496.873.24$50,587
Nov 201147565595.723.31$47,636
Oct 201124766184.983.65$23,402
Sep 201125167183.623.99$23,663
Aug 201123381283.404.15$22,801
Jul 201124182694.144.52$26,419
Jun 201124674992.904.64$26,329
May 201148165898.134.40$50,099
Apr 2011224690105.964.33$26,725
Mar 201145389796.364.06$47,291
Feb 201122561885.644.18$21,852
Jan 201122985886.504.59$23,746
Dec 201023499985.734.35$24,404
Nov 20104811,03880.843.80$42,824
Oct 20102351,16878.103.51$22,452
Sep 20102301,14272.633.98$21,249
Aug 20103431,17273.684.42$30,452
Jul 20102331,00672.554.74$21,669
Jun 20104511,04770.364.91$36,874
May 201022156171.124.24$18,093
Apr 20109948681.694.12$10,091
Mar 201031888278.394.39$28,799
Feb 201031833773.585.44$25,233
Jan 201020971974.365.96$19,829
Dec 200932276271.445.48$27,182
Nov 200910764474.593.75$10,397
Oct 200921568472.544.11$18,408
Sep 200942268465.543.06$29,754
Aug 200920953267.423.22$15,803
Jul 200921162961.133.46$15,078
Jun 200921255666.163.90$16,192
May 200921469754.743.93$14,451
Apr 200919662846.773.59$11,420
Mar 200964063042.144.06$29,527
Feb 200910556732.814.63$6,072
Jan 200932780235.865.37$16,034
Dec 200821373037.105.98$12,266
Nov 200810371555.496.86$10,621
Oct 20081711,20975.246.92$21,235
Sep 20082601,075101.767.88$34,925
Aug 20081721,275114.228.48$30,462
Jul 20082571,244131.0811.39$47,856
Jun 20081681,304131.3313.03$39,058
May 20082511,393123.1711.57$47,039
Apr 20081671,350110.3110.45$32,536
Mar 20082551,057101.909.66$36,199
Feb 20081671,21692.538.77$26,118
Jan 20082541,20490.388.21$32,836
Dec 20072551,29088.337.30$31,944
Nov 20072521,23791.677.29$32,121
Oct 20071691,28782.856.92$22,910
Sep 200725395975.846.24$25,176
Aug 20071721,15969.066.39$19,282
Jul 20072501,03570.906.39$24,337
Jun 200717086162.007.55$17,039
May 20072521,19858.747.85$24,202
Apr 20071691,22859.617.81$19,659
Mar 20072531,23856.927.30$23,441
Feb 20071711,37955.108.22$20,752
Jan 20072571,40850.306.73$22,399
Dec 20062491,51156.656.92$24,560
Nov 20061721,39954.207.62$19,979
Oct 20062695054.906.01$15,069
Sep 20061804960.085.04$11,061
Aug 20063384968.717.34$23,584
Jul 2006894269.376.34$6,440
Jun 20061794966.286.38$12,177
May 20062665766.016.42$17,925
Apr 20062644664.397.36$17,338
Mar 20061855156.707.08$10,851
Feb 20062734157.597.75$16,040
Jan 20062722260.598.93$16,677
Dec 20051842754.9413.42$10,471
Nov 20052713554.6910.59$15,192
Oct 20051805158.3413.80$11,205
Sep 20052716061.4512.08$17,378
Aug 20052695861.519.80$17,114
Jul 20052686355.697.84$15,419
Jun 20051803852.337.38$9,700
May 20052675045.226.65$12,406
Apr 20052704749.207.36$13,630
Mar 20051818250.377.15$9,704
Feb 2005923845.226.31$4,400
Jan 20053603243.166.32$15,740
Dec 20041804739.866.75$7,492
Nov 20042696545.286.33$12,592
Oct 200414729749.706.52$9,241
Sep 200422027243.245.28$10,950
Aug 200421823642.375.55$10,547
Jul 200415422838.286.08$7,282
Jun 200415323136.106.43$7,009
May 200415021337.486.49$7,005
Apr 200423023234.475.86$9,287
Mar 20041548034.365.53$5,734
Feb 20042347132.455.51$7,984
Jan 20041548232.036.30$5,449
Dec 20032328130.266.30$7,531
Nov 20031536428.804.60$4,700
Oct 200330834228.174.76$10,304
Sep 20037869926.314.75$5,372
Aug 200315478529.765.13$8,610
Jul 200315584429.415.17$8,923
Jun 200322980928.565.98$11,380
May 200323169226.595.97$10,275
Apr 200315376026.675.41$8,190
Mar 200315461531.146.10$8,545
Feb 20032311,20333.487.93$17,269
Jan 20032361,34930.315.58$14,683
Dec 20022381,44926.914.85$13,438
Nov 20021591,58924.664.14$10,495
Oct 20022581,83126.464.23$14,570
Sep 20021721,04627.443.64$8,522
Aug 20022581,21925.963.16$10,555
Jul 20021741,19424.583.06$7,933
Jun 20022571,18023.733.34$10,038
May 20022581,78524.663.58$12,760
Apr 20021661,52223.653.51$9,272
Mar 20022522,18622.003.10$12,327
Feb 20022612,06918.222.38$9,671
Jan 20021742,14917.172.38$8,093
Dec 20013521,67916.932.36$9,929
Nov 2001862,01018.072.41$6,389
Oct 20012371,25719.782.53$7,867
Sep 20011571,32624.262.25$6,794
Aug 20012301,42824.873.05$10,080
Jul 20012311,49623.933.20$10,311
Jun 20011571,50524.563.82$9,611
May 20012291,52725.524.31$12,421
Apr 20012331,57924.685.34$14,175
Mar 20012281,66524.545.38$14,547
Feb 20012271,57327.755.77$15,371
Jan 20012231,74327.478.40$20,765
Dec 20002271,73826.889.12$21,957
Nov 20002981,98132.215.66$20,807
Oct 20002221,27731.235.15$13,504
Sep 20002202,05031.875.19$17,644
Aug 20002202,22729.644.54$16,633
Jul 20002182,24228.534.09$15,389
Jun 20002192,39929.304.40$16,966
May 20002182,55427.263.68$15,341
Apr 20002222,01624.513.12$11,723
Mar 20002192,63828.422.86$13,768
Feb 20002202,54627.622.73$13,018
Jan 20003022,48625.272.48$13,798
Dec 19992202,74724.282.42$12,000
Nov 19992222,60123.192.43$11,479
Oct 19999210,87120.982.80$32,409
Sep 19991388,87121.752.62$26,233
Aug 19991429,49919.262.88$30,050
Jul 1999929,97517.892.37$25,310
Jun 19991389,96915.942.36$25,747
May 199914116,00215.792.32$39,367
Apr 199913715,93515.102.21$37,254
Mar 19992652,51712.471.84$7,932
Feb 1999456,0809.981.82$11,501
Jan 19994417,43310.381.90$33,579
Dec 1998212,4159.201.77$4,476
Nov 1998222,52410.892.19$5,756
Oct 19982219,21812.421.97$38,118
Sep 19982214,68012.592.08$30,850
Aug 19982212,65711.301.91$24,390
Jul 19983711,89211.742.24$27,040
Jun 19982212,48411.242.24$28,177
May 19983313,10812.622.21$29,337
Apr 19983312,52713.042.51$31,815
Mar 19983413,48312.802.31$31,573
Feb 19983512,55713.952.30$29,358
Jan 19985913,97014.702.15$30,970
Dec 19975910,60116.322.41$26,523
Nov 19977110,48318.193.09$33,666
Oct 19979410,20819.253.15$33,963
Sep 199710612,99217.742.95$40,270
Aug 199714614,28517.862.55$39,102
Jul 199723311,96017.582.25$30,970
Jun 19972683,69617.242.26$12,963
May 19972863,71818.972.31$14,008
Apr 19972913,61217.882.08$12,726
Mar 19972693,47218.951.94$11,830
Feb 19972443,03620.492.21$11,697
Jan 19972442,93423.483.54$16,115
Dec 19962373,09723.32$5,527
Nov 199626763121.97$5,866
Oct 199624857023.31$5,781
Sep 199626658922.22$5,911
Aug 199627663020.26$5,592
Jul 199626463319.55$5,161
Jun 199626959418.73$5,038
May 199625362019.43$4,916
Apr 199627559221.51$5,915
Mar 199626060219.38$5,039
Feb 199626757916.98$4,534
Jan 199623057817.07$3,926
Dec 199524657617.19$4,229
Nov 199525161416.00$4,016
Oct 199531944615.43$4,922
Sep 199530942016.18$5,000
Aug 199531845615.92$5,063
Jul 199528343215.24$4,313
Jun 199529543716.41$4,841
May 199528946117.56$5,075
Apr 199532145317.73$5,691
Mar 199531546216.44$5,179
Feb 199528345716.58$4,692
Jan 199533454015.92$5,317
Dec 199432054815.03$4,810
Nov 199427253415.90$4,325
Oct 199432362515.58$5,032
Sep 199422188715.29$3,379
Aug 199423997016.13$3,855
Jul 19942441,00417.56$4,285
Jun 199421797117.09$3,709
May 19942401,01215.88$3,811
Apr 199424397314.14$3,436
Mar 199418081412.46$2,243
Feb 199431847812.50$3,975
Jan 199415755012.66$1,988
Dec 199315655812.33$1,923
Nov 199323457614.49$3,391
Oct 199331166015.85$4,929
Sep 199323666815.03$3,547
Aug 1993751,19815.66$1,175
Jul 19933461,11515.46$5,349
Jun 199315067416.79$2,519
May 199330349217.68$5,357
Apr 199315450818.05$2,780
Mar 199315269018.14$2,757
Feb 199330761217.90$5,495
Jan 199315661916.93$2,641

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                  162 bbl  × $106.41 =    $17,238
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $17,238

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/4996 is the state's own key, not one this site invented.