HALFF ESTATE -D-

Operated by PIONEER NATURAL RES. USA, INC. (P-5 665748) in the OLD UPLAND (BEND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 7655District 7CField 67039500NGPA filingOilCasinghead gasSaveExport
Value, all time
$2.5 M
Jan 1993 – May 2026
Value, last 12 filed months
$49 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 13 leases and 14 wells, and the rule below applies to all of them.

Discovered
1974-11-07
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA1none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition54,021 bbl$2,093,695
Casinghead gasProduction135,210 Mcf$427,456
Total$2,521,151

35,153 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 31.3293, -102.0007. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

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
10,350 ft
1 wells filed one
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.

How deep they were drilled

The one well that filed a depth was drilled to 10,350 ft.

Completions filed
Nov 1978
1 of 1 wells

1 well

42-46131346110,350 ftNov 1978

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 202615640106.413.05$16,722
Apr 2026010798.932.87$307
Mar 20261575989.753.15$14,277
Feb 2026035463.503.75$1,328
Jan 2026019859.138.00$1,584
Dec 2025031356.664.41$1,381
Nov 202504558.593.93$177
Oct 2025026659.383.30$879
Sep 2025022362.743.08$686
Aug 202513936663.933.01$9,990
Jul 2025038266.743.32$1,266
Jun 2025011066.483.13$344
May 202506860.553.23$220
Apr 2025041262.363.54$1,460
Mar 2025035867.704.27$1,528
Feb 202516026570.884.34$12,491
Jan 2025044874.324.28$1,917
Dec 2024045668.993.12$1,423
Nov 202419052169.052.20$14,265
Oct 2024052071.372.28$1,186
Sep 202407169.612.36$168
Aug 20245142475.632.06$4,732
Jul 20245238879.932.15$4,989
Jun 2024018878.082.63$495
May 2024030178.812.20$662
Apr 202419932384.451.66$17,341
Mar 2024041680.301.55$643
Feb 202420528076.091.78$16,098
Jan 2024029773.023.30$979
Dec 2023026171.262.61$681
Nov 20230077.892.81$0
Oct 202321425785.443.09$19,078
Sep 20230089.042.74$0
Aug 2023026380.522.67$703
Jul 2023030674.852.64$808
Jun 2023028168.962.26$635
May 202310028370.622.23$7,692
Apr 2023028578.122.24$638
Mar 2023027172.852.39$649
Feb 202310024675.112.47$8,118
Jan 2023016076.533.39$542
Dec 20221125276.415.73$8,856
Nov 202201685.005.65$90
Oct 20220387.185.86$18
Sep 202206684.888.16$539
Aug 202201194.529.13$100
Jul 202224624101.587.54$25,170
Jun 2022089115.097.98$710
May 20220216109.378.43$1,822
Apr 2022032104.226.84$219
Mar 2022067108.885.08$340
Feb 20220091.054.86$0
Jan 20221864981.844.54$15,445
Dec 2021034171.323.90$1,330
Nov 2021034477.435.24$1,801
Oct 2021044879.795.71$2,560
Sep 202125639169.865.35$19,976
Aug 2021012466.024.22$523
Jul 202116913670.783.98$12,503
Jun 2021013769.493.38$463
May 2021012463.483.02$374
Apr 202116116360.362.76$10,168
Mar 20218618061.302.72$5,761
Feb 20218517357.805.55$5,873
Jan 202117315350.412.81$9,151
Dec 20208414544.642.68$4,138
Nov 20208313638.772.71$3,586
Oct 20208517536.972.48$3,576
Sep 2020010237.091.99$203
Aug 2020857039.982.39$3,565
Jul 20208411938.371.83$3,440
Jun 20208411534.901.69$3,126
May 2020013816.921.81$250
Apr 2020866514.751.80$1,386
Mar 20201788730.341.86$5,562
Feb 202008549.881.98$168
Jan 2020931157.252.09$5,347
Dec 2019803259.012.30$4,795
Nov 2019866155.302.75$4,924
Oct 20197411953.472.42$4,245
Sep 201987055.052.66$4,789
Aug 20199115153.112.30$5,181
Jul 20199716656.272.46$5,867
Jun 2019956152.782.49$5,166
May 20191811558.482.74$10,626
Apr 20190062.632.75$0
Mar 2019925956.803.06$5,406
Feb 2019983250.852.79$5,073
Jan 2019967646.033.23$4,664
Dec 2018997446.594.19$4,922
Nov 2018924552.934.24$5,060
Oct 20189312361.443.40$6,132
Sep 201818315659.543.11$11,381
Aug 20180759.403.07$21
Jul 20187110265.142.93$4,924
Jun 20181399160.183.08$8,645
May 20181179765.382.90$7,931
Apr 201809563.842.90$276
Mar 20186413461.222.79$4,292
Feb 2018949661.782.77$6,073
Jan 201809962.874.01$397
Dec 20175015957.272.92$3,328
Nov 201709655.423.12$299
Oct 2017949149.292.98$4,905
Sep 2017749147.523.09$3,797
Aug 20175210645.373.00$2,678
Jul 2017010343.873.09$318
Jun 2017699542.493.09$3,225
May 2017669145.373.26$3,291
Apr 2017479147.933.21$2,545
Mar 20171069146.772.98$5,229
Feb 2017719150.452.95$3,851
Jan 20177312949.413.42$4,048
Dec 20166712648.763.72$3,736
Nov 2016012042.492.64$317
Oct 20166017946.193.09$3,325
Sep 20168212941.553.10$3,807
Aug 20165912141.442.92$2,799
Jul 201610312341.622.92$4,647
Jun 20167310945.352.69$3,603
May 20168116042.521.99$3,763
Apr 20167210536.561.99$2,841
Mar 20168415033.011.79$3,042
Feb 201610615226.472.06$3,119
Jan 2016019627.352.36$463
Dec 20156719532.362.00$2,558
Nov 20151179138.792.17$4,736
Oct 2015689143.552.43$3,182
Sep 2015021042.992.76$579
Aug 20158520240.162.87$3,994
Jul 2015011148.152.95$327
Jun 2015529956.152.88$3,205
May 2015017355.212.96$511
Apr 20155114549.822.71$2,933
Mar 20155215442.892.93$2,682
Feb 20155212844.662.98$2,703
Jan 20154519143.433.10$2,547
Dec 2014020954.693.59$751
Nov 201414619770.464.25$11,125
Oct 20141879778.303.90$15,020
Sep 201409186.164.05$368
Aug 20147718189.394.04$7,613
Jul 20146821496.564.18$7,461
Jun 201415122698.164.74$15,893
May 2014020094.734.73$945
Apr 201415514895.944.81$15,582
Mar 20149022495.895.06$9,763
Feb 20147620397.406.19$8,659
Jan 20147524690.404.86$7,976
Dec 201312722391.824.35$12,632
Nov 2013699188.853.74$6,471
Oct 201318811197.423.78$18,734
Sep 2013099104.113.72$368
Aug 2013144104104.253.52$15,378
Jul 201326171102.523.72$3,301
Jun 20135723694.403.93$6,309
May 20134121894.834.15$4,793
Apr 20139023793.964.28$9,471
Mar 20133823793.623.91$4,485
Feb 20134622191.233.42$4,952
Jan 20135220891.603.42$5,475
Dec 20129524986.773.42$9,095
Nov 20125023686.953.62$5,203
Oct 201210721189.383.40$10,281
Sep 2012018494.672.92$537
Aug 20125823292.662.91$6,049
Jul 20121422985.133.02$1,884
Jun 20129123379.822.52$7,851
May 20125322791.612.49$5,420
Apr 201230199101.652.00$3,447
Mar 201263386105.052.22$7,476
Feb 2012133356101.102.57$14,361
Jan 20125940598.092.73$6,895
Dec 201111641096.873.24$12,565
Nov 20116138895.723.31$7,124
Oct 20115738884.983.65$6,259
Sep 20119137883.623.99$9,116
Aug 20114037583.404.15$4,892
Jul 201111038694.144.52$12,099
Jun 20116037792.904.64$7,323
May 20115637598.134.40$7,147
Apr 201186393105.964.33$10,816
Mar 20117740496.364.06$9,059
Feb 20115838085.644.18$6,556
Jan 201111039986.504.59$11,346
Dec 201012037485.734.35$11,914
Nov 20103338480.843.80$4,125
Oct 20104639978.103.51$4,993
Sep 20108837472.633.98$7,880
Aug 201012233273.684.42$10,456
Jul 2010039072.554.74$1,847
Jun 201012334470.364.91$10,343
May 20105340371.124.24$5,476
Apr 201010539481.694.12$10,202
Mar 20105940578.394.39$6,402
Feb 20109537273.585.44$9,015
Jan 20105735974.365.96$6,380
Dec 200911340071.445.48$10,266
Nov 200911237374.593.75$9,753
Oct 20095238172.544.11$5,338
Sep 200910337165.543.06$7,888
Aug 20093638667.423.22$3,669
Jul 20092139861.133.46$2,663
Jun 20099638566.163.90$7,851
May 20098240554.743.93$6,079
Apr 20098240446.773.59$5,284
Mar 20099340442.144.06$5,559
Feb 20093942932.814.63$3,267
Jan 200916638535.865.37$8,021
Dec 20084039937.105.98$3,869
Nov 200810139055.496.86$8,280
Oct 20088640775.246.92$9,288
Sep 200845318101.767.88$7,084
Aug 2008134395114.228.48$18,656
Jul 200835228131.0811.39$7,185
Jun 200840398131.3313.03$10,440
May 200894505123.1711.57$17,423
Apr 200895379110.3110.45$14,442
Mar 200894399101.909.66$13,435
Feb 2008845092.538.77$4,687
Jan 20082751990.388.21$6,699
Dec 20072737988.337.30$5,152
Nov 20076438091.677.29$8,638
Oct 200712539882.856.92$13,111
Sep 20075826875.846.24$6,072
Aug 20079840469.066.39$9,349
Jul 200713138870.906.39$11,766
Jun 200714561962.007.55$13,662
May 200725324358.747.85$16,768
Apr 200712339159.617.81$10,384
Mar 200734413656.927.30$20,574
Feb 200717618255.108.22$11,193
Jan 200717518650.306.73$10,054
Dec 200617912256.656.92$10,984
Nov 200617512754.207.62$10,452
Oct 200617813554.906.01$10,584
Sep 200617514760.085.04$11,254
Aug 200617219668.717.34$13,257
Jul 200617317069.376.34$13,079
Jun 200635014766.286.38$24,136
May 2006016366.016.42$1,047
Apr 200617715464.397.36$12,531
Mar 200635514956.707.08$21,184
Feb 200618012557.597.75$11,335
Jan 200617519660.598.93$12,354
Dec 200517833554.9413.42$14,273
Nov 200517629754.6910.59$12,770
Oct 200517733858.3413.80$14,989
Sep 200535121061.4512.08$24,106
Aug 200517841661.519.80$15,024
Jul 200518435855.697.84$13,055
Jun 200518236452.337.38$12,211
May 200518236945.226.65$10,684
Apr 200518525349.207.36$10,964
Mar 200518428250.377.15$11,286
Feb 200536829645.226.31$18,509
Jan 200518133643.166.32$9,936
Dec 200418224039.866.75$8,875
Nov 200436834145.286.33$18,822
Oct 2004037649.706.52$2,450
Sep 200418240543.245.28$10,010
Aug 200418628042.375.55$9,435
Jul 200418533138.286.08$9,096
Jun 200418025736.106.43$8,151
May 200436340737.486.49$16,249
Apr 200418235334.475.86$8,342
Mar 200418442034.365.53$8,645
Feb 200418634132.455.51$7,914
Jan 200418538332.036.30$8,338
Dec 200318536830.266.30$7,917
Nov 200318632828.804.60$6,864
Oct 200318329428.174.76$6,554
Sep 200318230326.314.75$6,227
Aug 200318027129.765.13$6,747
Jul 200318037429.415.17$7,228
Jun 200337231628.565.98$12,515
May 200318442226.595.97$7,413
Apr 200318145526.675.41$7,288
Mar 200317945231.146.10$8,329
Feb 200318934333.487.93$9,046
Jan 200318637730.315.58$7,742
Dec 200218040726.914.85$6,819
Nov 200219050124.664.14$6,758
Oct 200235662026.464.23$12,042
Sep 2002035927.443.64$1,305
Aug 200218132825.963.16$5,737
Jul 200218329924.583.06$5,414
Jun 200216939023.733.34$5,312
May 200236823724.663.58$9,924
Apr 200218531323.653.51$5,475
Mar 200218447822.003.10$5,531
Feb 200218154818.222.38$4,600
Jan 200218052917.172.38$4,347
Dec 200136866416.932.36$7,800
Nov 200118245418.072.41$4,381
Oct 200118330419.782.53$4,389
Sep 200118245524.262.25$5,440
Aug 200118648524.873.05$6,107
Jul 200117875823.933.20$6,683
Jun 200117547924.563.82$6,130
May 200135836625.524.31$10,713
Apr 200118115324.685.34$5,283
Mar 200118129824.545.38$6,044
Feb 200117929627.755.77$6,674
Jan 200118842427.478.40$8,725
Dec 200018146026.889.12$9,062
Nov 200038340732.215.66$14,639
Oct 200018142431.235.15$7,834
Sep 200018246231.875.19$8,197
Aug 200036148229.644.54$12,889
Jul 2000033828.534.09$1,382
Jun 200035948829.304.40$12,665
May 200017950727.263.68$6,745
Apr 200018148524.513.12$5,948
Mar 200018746428.422.86$6,641
Feb 200036344627.622.73$11,242
Jan 200018845325.272.48$5,874
Dec 199918943524.282.42$5,643
Nov 199918244423.192.43$5,301
Oct 199918747720.982.80$5,261
Sep 199918347021.752.62$5,211
Aug 199936848819.262.88$8,491
Jul 199937054717.892.37$7,917
Jun 199918255615.942.36$4,214
May 1999030815.792.32$715
Apr 199936838915.102.21$6,416
Mar 1999144312.471.84$827
Feb 19993714159.981.82$4,457
Jan 1999137510.381.90$723
Dec 19983704799.201.77$4,253
Nov 199818748010.892.19$3,086
Oct 199818853012.421.97$3,379
Sep 199818151612.592.08$3,353
Aug 199818353811.301.91$3,094
Jul 199818553311.742.24$3,364
Jun 199818155511.242.24$3,276
May 199836660012.622.21$5,943
Apr 199836754313.042.51$6,146
Mar 1998052012.802.31$1,201
Feb 199838050013.952.30$6,451
Jan 199836554314.702.15$6,536
Dec 1997053816.322.41$1,297
Nov 199737953718.193.09$8,552
Oct 199718751019.253.15$5,206
Sep 199717951517.742.95$4,697
Aug 199735857317.862.55$7,858
Jul 199718257917.582.25$4,501
Jun 199718556817.242.26$4,471
May 199718158418.972.31$4,782
Apr 199736648317.882.08$7,550
Mar 199718556318.951.94$4,597
Feb 199717550920.492.21$4,709
Jan 199718854323.483.54$6,336
Dec 199637753923.32$8,792
Nov 199637052221.97$8,129
Oct 199619155323.31$4,452
Sep 199618956322.22$4,200
Aug 199618272120.26$3,687
Jul 199618279619.55$3,558
Jun 199636973318.73$6,911
May 199619375419.43$3,750
Apr 199636156921.51$7,765
Mar 199618223119.38$3,527
Feb 199618169516.98$3,073
Jan 199637675117.07$6,418
Dec 199519573917.19$3,352
Nov 199518675616.00$2,976
Oct 199537278815.43$5,740
Sep 199519173316.18$3,090
Aug 199518980215.92$3,009
Jul 199536175015.24$5,502
Jun 199515982016.41$2,609
May 199537878317.56$6,638
Apr 199518277417.73$3,227
Mar 199552576716.44$8,631
Feb 199527670516.58$4,576
Jan 1995073415.92$0
Dec 199437675215.03$5,651
Nov 199418977215.90$3,005
Oct 199418276215.58$2,836
Sep 199436877415.29$5,627
Aug 199418674516.13$3,000
Jul 199418083917.56$3,161
Jun 199435977817.09$6,135
May 199433967215.88$5,383
Apr 199418277514.14$2,573
Mar 199436279212.46$4,511
Feb 199418373912.50$2,288
Jan 199418874012.66$2,380
Dec 199318877012.33$2,318
Nov 199354677014.49$7,912
Oct 199318383615.85$2,901
Sep 199317381215.03$2,600
Aug 199336283615.66$5,669
Jul 199317886415.46$2,752
Jun 199336183416.79$6,061
May 199335283517.68$6,223
Apr 199318261518.05$3,285
Mar 199336376618.14$6,585
Feb 199318870117.90$3,365
Jan 199337879616.93$6,400

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                  156 bbl  × $106.41 =    $16,600
Casinghead gas        40 Mcf  × $  3.05 =       $122

────────────────────────────────────────────────────
Month total                                  $16,722

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/7655 is the state's own key, not one this site invented.