MCKNIGHT, M. B. -B-

Operated by HEIFER PRODUCTION COMPANY LLC (P-5 373514) in the SAND HILLS (MCKNIGHT) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 8670District 08Field 80473310Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$6.6 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 215 leases and 1,609 wells, and the rule below applies to all of them.

Discovered
1944-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 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 2024-12-17.

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: ONLY. 6MONTH EXCEPTION TO SWR51A. SPECIAL HZ LANGUAGE

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
NGPA5none

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
OilDisposition134,343 bbl$5,479,231
Casinghead gasProduction336,055 Mcf$1,084,843
Total$6,564,074

100,260 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 (9)

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 31.5454, -102.6832. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

31.54594, -102.68306 · 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
11.1%
1 of 9 wells
With a plug date
11.1%
1 of 9 wells
Median depth
3,447 ft
6 wells filed one
Completion to plug
12.7 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
111.1%
A plug date is filed
111.1%
BothOn the schedule and plugged. Neither fact cancels the other.
111.1%
NeitherNo plug date, and not on the schedule.
888.9%

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

Total depth in feet, 6 of 9 wells. Median 3,447 ft, with the middle half between 3,436 and 3,472 ft; the shallowest is 3,435 ft and the deepest 3,564 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 6 of 9 wells, Dec 1981 – Aug 1993. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Dec 1981 – Aug 1993
6 of 9 wells; 3 filed none
Plug dates filed
May 1995
1 of 9 wells; 8 filed none

Last completion to plug: a median of 12.7 years across the 1 well that filed both dates, with the middle half between 12.7 years and 12.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

9 wells

42-103031592
42-103031603
42-103031611
42-1033297583,436 ftAug 1993
42-1033417293,476 ftSep 1992
42-1033342663,564 ftApr 1984
42-1033297673,435 ftSep 1982May 1995Yes
42-1033282353,436 ftMar 1982
42-1033272143,458 ftDec 1981

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 202410069.052.20$691
Oct 202410071.372.28$714
Sep 202410069.612.36$696
Aug 202410075.632.06$756
Jul 202465079.932.15$5,195
Jun 2024158078.082.63$12,337
May 2024104078.812.20$8,196
Apr 2024110084.451.66$9,290
Mar 2024159080.301.55$12,768
Feb 2024145076.091.78$11,033
Jan 202459073.023.30$4,308
Dec 2023153071.262.61$10,903
Nov 2023206077.892.81$16,045
Oct 202394085.443.09$8,031
Sep 2023301089.042.74$26,801
Aug 2023288080.522.67$23,190
Jul 2023200074.852.64$14,970
Jun 2023239068.962.26$16,481
May 2023199070.622.23$14,053
Apr 2023324078.122.24$25,311
Mar 2023294072.852.39$21,418
Feb 2023121075.112.47$9,088
Jan 2023242076.533.39$18,520
Dec 2022190076.415.73$14,518
Nov 2022299085.005.65$25,415
Oct 2022258087.185.86$22,492
Sep 2022289084.888.16$24,530
Aug 2022236094.529.13$22,307
Jul 20221440101.587.54$14,628
Jun 20222900115.097.98$33,376
May 20221970109.378.43$21,546
Apr 20222080104.226.84$21,678
Mar 20222160108.885.08$23,518
Feb 2022236091.054.86$21,488
Jan 2022253081.844.54$20,706
Dec 202133071.323.90$2,354
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 20200537.091.99$10
Aug 20200539.982.39$12
Jul 202001838.371.83$33
Jun 202001234.901.69$20
May 2020012116.921.81$220
Apr 2020023314.751.80$420
Mar 2020044930.341.86$833
Feb 202015736549.881.98$8,554
Jan 2020036757.252.09$769
Dec 201930926359.012.30$18,840
Nov 2019025755.302.75$707
Oct 201914944553.472.42$9,043
Sep 201915446855.052.66$9,721
Aug 2019156053.112.30$8,285
Jul 201915657156.272.46$10,183
Jun 201932677752.782.49$19,142
May 20193101,26558.482.74$21,595
Apr 2019154062.632.75$9,645
Mar 2019157056.803.06$8,918
Feb 2019479050.852.79$24,357
Jan 2019465046.033.23$21,404
Dec 2018316046.594.19$14,722
Nov 2018313052.934.24$16,567
Oct 2018631061.443.40$38,769
Sep 2018468059.543.11$27,865
Aug 2018155059.403.07$9,207
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 2018221063.842.90$14,109
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 2018165062.874.01$10,374
Dec 2017382057.272.92$21,877
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 201515910640.162.87$6,690
Jul 201516457748.152.95$9,596
Jun 201532822856.152.88$19,074
May 20150055.212.96$0
Apr 2015164049.822.71$8,170
Mar 20150042.892.93$0
Feb 20151598344.662.98$7,348
Jan 20151598343.433.10$7,163
Dec 201415828254.693.59$9,654
Nov 201416138370.464.25$12,973
Oct 201431559978.303.90$27,001
Sep 201417057686.164.05$16,977
Aug 201416630689.394.04$16,073
Jul 201416858396.564.18$18,659
Jun 201449861498.164.74$51,792
May 201416676394.734.73$19,332
Apr 20143431,01695.944.81$37,793
Mar 201434288995.895.06$37,290
Feb 201417053097.406.19$19,840
Jan 201451385090.404.86$50,507
Dec 201316799291.824.35$19,654
Nov 20131781,03988.853.74$19,699
Oct 20135301,19497.423.78$56,145
Sep 20131761,015104.113.72$22,097
Aug 2013336864104.253.52$38,072
Jul 2013352521102.523.72$38,024
Jun 20135161,09794.403.93$53,025
May 20133501,39994.834.15$38,995
Apr 201339282993.964.28$40,383
Mar 201323490893.623.91$25,460
Feb 201315248591.233.42$15,526
Jan 201316757491.603.42$17,260
Dec 20127546186.773.42$8,084
Nov 2012024686.953.62$892
Oct 201226644789.383.40$25,295
Sep 201221421994.672.92$20,899
Aug 201232041092.662.91$30,844
Jul 201221820385.133.02$19,172
Jun 201228710479.822.52$23,170
May 201216127691.612.49$15,436
Apr 2012221813101.652.00$24,088
Mar 2012371879105.052.22$40,927
Feb 2012142698101.102.57$16,150
Jan 201232059098.092.73$33,002
Dec 201116867796.873.24$18,467
Nov 20112481,04895.723.31$27,209
Oct 20114071,08784.983.65$38,553
Sep 20113461,29883.623.99$34,106
Aug 20114491,42383.404.15$43,351
Jul 20111691,22794.144.52$21,452
Jun 20113301,51092.904.64$37,663
May 20114071,48698.134.40$46,484
Apr 20114191,604105.964.33$51,348
Mar 20114591,59696.364.06$50,705
Feb 201147194585.644.18$44,287
Jan 20112331,69586.504.59$27,932
Dec 20104631,84985.734.35$47,732
Nov 20104721,89480.843.80$45,345
Oct 20104671,70378.103.51$42,448
Sep 20102311,50572.633.98$22,767
Aug 20104621,51373.684.42$40,727
Jul 20102301,98472.554.74$26,084
Jun 20104762,52670.364.91$45,895
May 20104711,43771.124.24$39,584
Apr 20104681,45981.694.12$44,246
Mar 20102411,19578.394.39$24,136
Feb 20102351,12273.585.44$23,398
Jan 201047284274.365.96$40,120
Dec 2009077971.445.48$4,272
Nov 20092311,04474.593.75$21,147
Oct 20092341,17272.544.11$21,792
Sep 20092331,01665.543.06$18,385
Aug 200923084167.423.22$18,213
Jul 200923078261.133.46$16,769
Jun 2009079566.163.90$3,097
May 200923491354.743.93$16,393
Apr 200923172846.773.59$13,416
Mar 200923187642.144.06$13,290
Feb 200923361932.814.63$10,513
Jan 200923472935.865.37$12,307
Dec 200823663937.105.98$12,575
Nov 200823450155.496.86$16,422
Oct 200823468375.246.92$22,334
Sep 2008235648101.767.88$29,018
Aug 2008230244114.228.48$28,340
Jul 2008235539131.0811.39$36,943
Jun 2008234878131.3313.03$42,174
May 2008450873123.1711.57$65,531
Apr 2008230767110.3110.45$33,390
Mar 2008227824101.909.66$31,094
Feb 200821463092.538.77$25,327
Jan 200824787390.388.21$29,487
Dec 200724774388.337.30$27,243
Nov 2007067791.677.29$4,936
Oct 200724989482.856.92$26,818
Sep 200724989675.846.24$24,479
Aug 200724896569.066.39$23,291
Jul 200724978370.906.39$22,656
Jun 200748168662.007.55$35,000
May 200701,14958.747.85$9,015
Apr 2007487059.617.81$29,030
Mar 200725261756.927.30$18,849
Feb 200748555755.108.22$31,300
Jan 200724579150.306.73$17,644
Dec 200649269556.656.92$32,680
Nov 200649172754.207.62$32,150
Oct 200648991054.906.01$32,319
Sep 200623996360.085.04$19,210
Aug 200649493468.717.34$40,798
Jul 20064941,17969.376.34$41,747
Jun 20064891,29866.286.38$40,697
May 20064711,23866.016.42$39,045
Apr 20062481,02964.397.36$23,543
Mar 20064781,02056.707.08$34,327
Feb 20062461,02057.597.75$22,073
Jan 20069851,30660.598.93$71,348
Dec 200524869054.9413.42$22,882
Nov 200550694954.6910.59$37,722
Oct 200524869058.3413.80$23,987
Sep 20055053,58061.4512.08$74,275
Aug 200524270561.519.80$21,792
Jul 200525571855.697.84$19,833
Jun 200551082252.337.38$32,756
May 20052391,19645.226.65$18,762
Apr 200525768749.207.36$17,701
Mar 200551868750.377.15$31,007
Feb 20054751,04445.226.31$28,069
Jan 20056881,01943.166.32$36,136
Dec 200401,10239.866.75$7,440
Nov 20042451,06445.286.33$17,829
Oct 200447475849.706.52$28,496
Sep 200446993443.245.28$25,215
Aug 20044431,02342.375.55$24,448
Jul 20042561,08238.286.08$16,383
Jun 20045271,00536.106.43$25,490
May 20045251,06437.486.49$26,587
Apr 20045181,07934.475.86$24,177
Mar 20045201,05134.365.53$23,679
Feb 20044531,00732.455.51$20,248
Jan 20045081,10832.036.30$23,251
Dec 20035311,14730.266.30$23,296
Nov 20034651,11428.804.60$18,511
Oct 20035341,18928.174.76$20,702
Sep 20035151,16426.314.75$19,078
Aug 20035231,18929.765.13$21,664
Jul 20035221,17429.415.17$21,423
Jun 2003525028.565.98$14,994
May 20037771,07326.595.97$27,069
Apr 20035291,22426.675.41$20,727
Mar 20035241,25431.146.10$23,962
Feb 20035311,13933.487.93$26,805
Jan 20035271,27530.315.58$23,090
Dec 20025311,32826.914.85$20,735
Nov 20025351,25424.664.14$18,381
Oct 20022631,31026.464.23$12,499
Sep 2002522027.443.64$14,324
Aug 20025351,34725.963.16$18,151
Jul 20025291,33624.583.06$17,093
Jun 20025291,38923.733.34$17,190
May 20025311,46724.663.58$18,352
Apr 20025201,41423.653.51$17,264
Mar 20025261,36022.003.10$15,792
Feb 20025121,16818.222.38$12,103
Jan 20025151,17117.172.38$11,624
Dec 20015291,01916.932.36$11,365
Nov 20015331,05318.072.41$12,164
Oct 20015271,08219.782.53$13,160
Sep 200149786724.262.25$14,009
Aug 200151165224.873.05$14,699
Jul 200151790223.933.20$15,256
Jun 20015101,12424.563.82$16,824
May 20015201,41225.524.31$19,352
Apr 20012601,18524.685.34$12,739
Mar 20015181,37824.545.38$20,120
Feb 20017761,33427.755.77$29,227
Jan 20015401,52927.478.40$27,676
Dec 20005351,45726.889.12$27,672
Nov 20005371,58232.215.66$26,248
Oct 20007771,13931.235.15$30,126
Sep 20002631,35131.875.19$15,389
Aug 20005151,36029.644.54$21,440
Jul 20002651,31028.534.09$12,918
Jun 200026698329.304.40$12,116
May 20007941,07427.263.68$25,596
Apr 200001,22324.513.12$3,811
Mar 20005281,28728.422.86$18,686
Feb 20002681,39627.622.73$11,208
Jan 20002691,36225.272.48$10,176
Dec 19997481,07724.282.42$20,772
Nov 19992631,26123.192.43$9,168
Oct 19992591,38820.982.80$9,325
Sep 19995311,41421.752.62$15,252
Aug 19995291,00019.262.88$13,064
Jul 199953253917.892.37$10,796
Jun 199925656915.942.36$5,425
May 199952597615.792.32$10,555
Apr 19992571,26915.102.21$6,683
Mar 19992641,10012.471.84$5,314
Feb 199901,0529.981.82$1,912
Jan 19997591,14510.381.90$10,054
Dec 199801,3699.201.77$2,428
Nov 19987851,42510.892.19$11,663
Oct 19982582,25912.421.97$7,653
Sep 19982621,92712.592.08$7,312
Aug 19985261,76211.301.91$9,305
Jul 19982671,59111.742.24$6,694
Jun 19982571,41411.242.24$6,052
May 19985161,49612.622.21$9,813
Apr 19985151,37613.042.51$10,163
Mar 19985091,46012.802.31$9,887
Feb 19982591,30213.952.30$6,607
Jan 19985361,43814.702.15$10,978
Dec 19975071,39716.322.41$11,643
Nov 19975181,33818.193.09$13,555
Oct 19975271,49019.253.15$14,838
Sep 19975261,54917.742.95$13,908
Aug 19975291,57817.862.55$13,479
Jul 19975341,56317.582.25$12,900
Jun 19975341,44717.242.26$12,472
May 19977671,56418.972.31$18,160
Apr 19975331,58017.882.08$12,821
Mar 19977751,65518.951.94$17,896
Feb 19975311,45120.492.21$14,081
Jan 19975411,51623.483.54$18,069
Dec 19965391,74323.32$12,569
Nov 19965261,78821.97$11,556
Oct 19967661,90923.31$17,855
Sep 19965211,83222.22$11,577
Aug 19967791,82920.26$15,783
Jul 19965311,89319.55$10,381
Jun 19967841,81118.73$14,684
May 19965201,67519.43$10,104
Apr 19967911,69021.51$17,014
Mar 19965231,56819.38$10,136
Feb 19965351,59316.98$9,084
Jan 19967671,70017.07$13,093
Dec 19955331,77617.19$9,162
Nov 19957621,76716.00$12,192
Oct 19957981,80515.43$12,313
Sep 19955221,84316.18$8,446
Aug 19957941,92915.92$12,640
Jul 19955341,95915.24$8,138
Jun 19957601,87416.41$12,472
May 19957652,00817.56$13,433
Apr 19951,0601,90217.73$18,794
Mar 19955271,88516.44$8,664
Feb 19955371,72816.58$8,903
Jan 19957761,99515.92$12,354
Dec 19947911,94615.03$11,889
Nov 19947931,97515.90$12,609
Oct 19947882,05715.58$12,277
Sep 19947922,16715.29$12,110
Aug 19947942,20616.13$12,807
Jul 19947992,18717.56$14,030
Jun 19941,0182,23017.09$17,398
May 19947982,21415.88$12,672
Apr 19947092,13714.14$10,025
Mar 19949972,21812.46$12,423
Feb 19947951,65912.50$9,938
Jan 19948121,98712.66$10,280
Dec 19939492,49512.33$11,701
Nov 19937942,38914.49$11,505
Oct 19938052,45615.85$12,759
Sep 19931,0602,61015.03$15,932
Aug 19937902,68115.66$12,371
Jul 19931,0412,72715.46$16,094
Jun 19931,3132,58716.79$22,045
May 19931,0452,72817.68$18,476
Apr 19931,3002,54318.05$23,465
Mar 19931,3232,80318.14$23,999
Feb 19931,5112,68517.90$27,047
Jan 19931,3563,07116.93$22,957

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.

Nov 2024 — as filed, then multipliedworked
Oil                   10 bbl  × $ 69.05 =       $691
Casinghead gas         0 Mcf  × $  2.20 =         $0

────────────────────────────────────────────────────
Month total                                     $691

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. 08/O/8670 is the state's own key, not one this site invented.