MCKNIGHT, M. B. -A-

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 8786District 08Field 80473310Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$5.8 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
NGPA6none

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
OilDisposition129,843 bbl$4,603,712
Casinghead gasProduction412,258 Mcf$1,196,389
Total$5,800,101

138,477 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 (13)

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 31.5359, -102.6805. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

31.53563, -102.68033 · 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
15.4%
2 of 13 wells
With a plug date
15.4%
2 of 13 wells
Median depth
3,440 ft
11 wells filed one
Completion to plug
4.6 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
215.4%
A plug date is filed
215.4%
BothOn the schedule and plugged. Neither fact cancels the other.
215.4%
NeitherNo plug date, and not on the schedule.
1184.6%

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, 11 of 13 wells. Median 3,440 ft, with the middle half between 3,429 and 3,462 ft; the shallowest is 3,390 ft and the deepest 3,580 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, 10 of 13 wells, May 1962 – Oct 1990. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
May 1962 – Oct 1990
10 of 13 wells; 3 filed none
Plug dates filed
Jan 1984 – May 1995
2 of 13 wells; 11 filed none

Last completion to plug: a median of 4.6 years across the 1 well that filed both dates, with the middle half between 4.6 years and 4.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

13 wells

42-1030317133,390 ftJan 1984Yes
42-103031541
42-103031702
42-10334108123,427 ftOct 1990May 1995Yes
42-10333951113,448 ftSep 1989
42-103334253R3,580 ftApr 1984
42-10333242103,576 ftSep 1983
42-1033297493,432 ftSep 1982
42-1033282183,476 ftMar 1982
42-1033270173,420 ftNov 1981
42-1033246563,430 ftFeb 1981
42-1030316343,440 ftJun 1962
42-1030316253,440 ftMay 1962

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 202432079.932.15$2,558
Jun 202479078.082.63$6,168
May 202452078.812.20$4,098
Apr 202455084.451.66$4,645
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 2023103077.892.81$8,023
Oct 202347085.443.09$4,016
Sep 2023151089.042.74$13,445
Aug 2023144080.522.67$11,595
Jul 2023100074.852.64$7,485
Jun 2023119068.962.26$8,206
May 2023100070.622.23$7,062
Apr 2023162078.122.24$12,655
Mar 2023147072.852.39$10,709
Feb 202360075.112.47$4,507
Jan 2023121076.533.39$9,260
Dec 202295076.415.73$7,259
Nov 2022149085.005.65$12,665
Oct 2022129087.185.86$11,246
Sep 2022145084.888.16$12,308
Aug 2022118094.529.13$11,153
Jul 2022720101.587.54$7,314
Jun 20221450115.097.98$16,688
May 20221480109.378.43$16,187
Apr 20221560104.226.84$16,258
Mar 20221370108.885.08$14,917
Feb 2022118091.054.86$10,744
Jan 2022126081.844.54$10,312
Dec 202116071.323.90$1,141
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 20200737.091.99$14
Aug 20200639.982.39$14
Jul 202002238.371.83$40
Jun 20200934.901.69$15
May 202008916.921.81$162
Apr 2020017314.751.80$312
Mar 2020033230.341.86$616
Feb 202015627049.881.98$8,316
Jan 2020027257.252.09$570
Dec 201915619559.012.30$9,655
Nov 201915619155.302.75$9,152
Oct 2019032953.472.42$796
Sep 2019034655.052.66$919
Aug 2019312053.112.30$16,570
Jul 2019042356.272.46$1,041
Jun 201915351752.782.49$9,363
May 201902,48058.482.74$6,796
Apr 2019160062.632.75$10,021
Mar 2019163056.803.06$9,258
Feb 201915697950.852.79$10,666
Jan 2019158046.033.23$7,273
Dec 2018316046.594.19$14,722
Nov 2018312052.934.24$16,514
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 201837061.222.79$2,265
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
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 20151711043.552.43$7,471
Sep 20150042.992.76$0
Aug 201516049940.162.87$7,859
Jul 2015059348.152.95$1,746
Jun 201515754156.152.88$10,375
May 201516060555.212.96$10,622
Apr 201516665649.822.71$10,046
Mar 2015045042.892.93$1,321
Feb 201516071844.662.98$9,283
Jan 201516071843.433.10$9,175
Dec 201416562754.693.59$11,276
Nov 201415653570.464.25$13,266
Oct 201415751178.303.90$14,286
Sep 201416757286.164.05$16,703
Aug 201416961389.394.04$17,580
Jul 201416679596.564.18$19,352
Jun 201415559198.164.74$18,014
May 201416151594.734.73$17,686
Apr 2014072895.944.81$3,501
Mar 201417773295.895.06$20,674
Feb 201417765197.406.19$21,271
Jan 201417066990.404.86$18,620
Dec 2013069691.824.35$3,031
Nov 201317253788.853.74$17,290
Oct 201315957197.423.78$17,648
Sep 2013177702104.113.72$21,037
Aug 20130821104.253.52$2,892
Jul 2013177641102.523.72$20,529
Jun 201316877894.403.93$18,919
May 201317577894.834.15$19,823
Apr 20132681,03493.964.28$29,609
Mar 201316077993.623.91$18,027
Feb 201310444891.233.42$11,020
Jan 2013053291.603.42$1,819
Dec 20125151486.773.42$6,183
Nov 2012017386.953.62$627
Oct 201219337189.383.40$18,512
Sep 201214673194.672.92$15,955
Aug 201232257192.662.91$31,497
Jul 201214969685.133.02$14,787
Jun 201219630279.822.52$16,405
May 201211081491.612.49$12,103
Apr 20121511,032101.652.00$17,410
Mar 20122531,203105.052.22$29,251
Feb 20120967101.102.57$2,485
Jan 20122131,06598.092.73$23,805
Dec 20113161,17296.873.24$34,408
Nov 201101,38095.723.31$4,570
Oct 20111911,52284.983.65$21,784
Sep 20112942,29383.623.99$33,724
Aug 20112591,15083.404.15$26,372
Jul 201134584094.144.52$36,273
Jun 201117085592.904.64$19,760
May 201123469998.134.40$26,041
Apr 2011236844105.964.33$28,664
Mar 201145986796.364.06$47,747
Feb 201123669485.644.18$23,112
Jan 201122372586.504.59$22,616
Dec 201023583185.734.35$23,760
Nov 201023471280.843.80$21,619
Oct 201023274478.103.51$20,730
Sep 201023355772.633.98$19,139
Aug 201023781473.684.42$21,060
Jul 201047170772.554.74$37,520
Jun 201023067870.364.91$19,512
May 201023777171.124.24$20,121
Apr 201023080781.694.12$22,116
Mar 201047389078.394.39$40,984
Feb 201024385173.585.44$22,511
Jan 201047862774.365.96$39,284
Dec 2009074771.445.48$4,096
Nov 200924469274.593.75$20,796
Oct 200946892472.544.11$37,747
Sep 200923961765.543.06$17,555
Aug 200923153267.423.22$17,286
Jul 20092401,08261.133.46$18,420
Jun 2009095466.163.90$3,716
May 200923080454.743.93$15,747
Apr 200924557846.773.59$13,532
Mar 200924577942.144.06$13,486
Feb 200923476432.814.63$11,217
Jan 20092341,02335.865.37$13,886
Dec 20082381,01237.105.98$14,879
Nov 20082351,38155.496.86$22,514
Oct 200823594175.246.92$24,195
Sep 2008233713101.767.88$29,326
Aug 2008239726114.228.48$33,457
Jul 2008234968131.0811.39$41,698
Jun 2008234792131.3313.03$41,053
May 2008238867123.1711.57$39,349
Apr 2008244854110.3110.45$35,844
Mar 2008237962101.909.66$33,447
Feb 200845073392.538.77$48,067
Jan 200824391090.388.21$29,430
Dec 200724388388.337.30$27,912
Nov 20072581,04491.677.29$31,263
Oct 20072631,08482.856.92$29,293
Sep 20072631,03175.846.24$26,384
Aug 20075001,02469.066.39$41,071
Jul 200724495770.906.39$23,413
Jun 200724071962.007.55$20,307
May 20074851,06658.747.85$36,853
Apr 200724399859.617.81$22,275
Mar 200725792156.927.30$21,354
Feb 200748977455.108.22$33,303
Jan 200724991650.306.73$18,686
Dec 200649183656.656.92$33,599
Nov 200649196054.207.62$33,925
Oct 200625987554.906.01$19,481
Sep 200649699560.085.04$34,812
Aug 200649499168.717.34$41,217
Jul 200650493369.376.34$40,880
Jun 200624696266.286.38$22,446
May 20064991,15866.016.42$40,379
Apr 2006098964.397.36$7,280
Mar 200648671656.707.08$32,628
Feb 200624271657.597.75$19,487
Jan 20064961,14060.598.93$40,237
Dec 20055161,33454.9413.42$46,245
Nov 20054851,14654.6910.59$38,659
Oct 20055161,33458.3413.80$48,507
Sep 200548994761.4512.08$41,488
Aug 200549097361.519.80$39,672
Jul 20052501,03255.697.84$22,017
Jun 20055151,07152.337.38$34,855
May 20052531,12445.226.65$18,917
Apr 20055191,10249.207.36$33,646
Mar 20052641,10250.377.15$21,182
Feb 200525085345.226.31$16,689
Jan 20054821,03043.166.32$27,315
Dec 20045111,19039.866.75$28,402
Nov 20042631,09845.286.33$18,859
Oct 200426182549.706.52$18,347
Sep 200445380143.245.28$23,820
Aug 200452691542.375.55$27,365
Jul 2004259038.286.08$9,915
Jun 20045281,25836.106.43$27,154
May 20045211,25037.486.49$27,645
Apr 20042681,13134.475.86$15,864
Mar 20045321,26334.365.53$25,264
Feb 20042621,15332.455.51$14,854
Jan 20044401,26432.036.30$22,056
Dec 20034751,23630.266.30$22,162
Nov 20034461,19628.804.60$18,341
Oct 20035331,40028.174.76$21,678
Sep 20032651,33326.314.75$13,303
Aug 20034381,22029.765.13$19,293
Jul 20034821,22729.415.17$20,520
Jun 20034681,20828.565.98$20,594
May 2003266026.595.97$7,073
Apr 20035211,48226.675.41$21,909
Mar 20034971,58331.146.10$25,127
Feb 20034541,49633.487.93$27,057
Jan 20037711,66130.315.58$32,641
Dec 20024801,59126.914.85$20,639
Nov 20025081,49624.664.14$18,716
Oct 200253396926.464.23$18,201
Sep 20025301,43927.443.64$19,774
Aug 20025281,51325.963.16$18,494
Jul 20025301,44124.583.06$17,439
Jun 20025301,52023.733.34$17,651
May 20025301,52724.663.58$18,543
Apr 20022661,32623.653.51$10,948
Mar 20025321,28422.003.10$15,688
Feb 20022671,27518.222.38$7,894
Jan 200201,37417.172.38$3,264
Dec 20015241,40216.932.36$12,186
Nov 20012651,28618.072.41$7,882
Oct 20012651,32219.782.53$8,585
Sep 20015291,39724.262.25$15,979
Aug 20015291,40324.873.05$17,440
Jul 20012561,50223.933.20$10,928
Jun 20015161,18524.563.82$17,205
May 20012561,16425.524.31$11,547
Apr 20015121,39624.685.34$20,084
Mar 20012681,63424.545.38$15,362
Feb 20014481,43827.755.77$20,725
Jan 20015301,90327.478.40$30,542
Dec 20005291,86926.889.12$31,269
Nov 20005161,94232.215.66$27,608
Oct 20005311,37431.235.15$23,653
Sep 20005271,83831.875.19$26,328
Aug 20005312,00929.644.54$24,861
Jul 20005312,05128.534.09$23,538
Jun 20005321,93329.304.40$24,087
May 20005282,13127.263.68$22,235
Apr 20007621,95624.513.12$24,772
Mar 20005331,81728.422.86$20,344
Feb 20005231,88827.622.73$19,593
Jan 20005362,02225.272.48$18,560
Dec 19995351,97024.282.42$17,765
Nov 19995031,69323.192.43$15,785
Oct 19995311,78120.982.80$16,134
Sep 19995331,87721.752.62$16,508
Aug 19995121,92819.262.88$15,405
Jul 19995052,02117.892.37$13,829
Jun 19995231,93715.942.36$12,912
May 19997682,07515.792.32$16,943
Apr 19995371,93415.102.21$12,379
Mar 19995021,91912.471.84$9,788
Feb 19995131,8659.981.82$8,510
Jan 19991,1612,05310.381.90$15,952
Dec 199801,9829.201.77$3,515
Nov 19989261,87510.892.19$14,182
Oct 19984681,97312.421.97$9,698
Sep 19987962,13012.592.08$14,458
Aug 19982652,27211.301.91$7,328
Jul 19985222,22711.742.24$11,111
Jun 19982592,05411.242.24$7,507
May 19985112,16112.622.21$11,217
Apr 19987982,08013.042.51$15,617
Mar 19987762,28312.802.31$15,205
Feb 19985162,08413.952.30$11,990
Jan 19988082,27614.702.15$16,782
Dec 19978002,31016.322.41$18,626
Nov 19975172,06018.193.09$15,766
Oct 19977742,30619.253.15$22,163
Sep 19975232,23517.742.95$15,882
Aug 19977742,37917.862.55$19,901
Jul 19977612,48117.582.25$18,953
Jun 19975242,18817.242.26$13,973
May 19977782,43718.972.31$20,384
Apr 19977992,41217.882.08$19,310
Mar 19977952,51218.951.94$19,936
Feb 19978052,22320.492.21$21,398
Jan 19975352,13523.483.54$20,119
Dec 19967962,17723.32$18,563
Nov 19965272,20121.97$11,578
Oct 19967682,34623.31$17,902
Sep 19967732,36822.22$17,176
Aug 19967932,41820.26$16,066
Jul 19967792,55019.55$15,229
Jun 19965252,57018.73$9,833
May 19967882,29319.43$15,311
Apr 19967992,12021.51$17,186
Mar 19968082,26619.38$15,659
Feb 19965311,94916.98$9,016
Jan 19968082,28717.07$13,793
Dec 19958042,37117.19$13,821
Nov 19957992,71916.00$12,784
Oct 19957972,58615.43$12,298
Sep 19958042,52816.18$13,009
Aug 19951,0412,78315.92$16,573
Jul 19958002,81715.24$12,192
Jun 19958002,67916.41$13,128
May 19957932,67217.56$13,925
Apr 19957932,52517.73$14,060
Mar 19958022,30416.44$13,185
Feb 19957922,42616.58$13,131
Jan 19958052,59315.92$12,816
Dec 19941,0422,68915.03$15,661
Nov 19947902,75315.90$12,561
Oct 19947902,86815.58$12,308
Sep 19941,0583,12615.29$16,177
Aug 19947953,30516.13$12,823
Jul 19941,0403,23917.56$18,262
Jun 19941,0323,15817.09$17,637
May 19941,0363,20415.88$16,452
Apr 19947972,94614.14$11,270
Mar 19941,0532,83312.46$13,120
Feb 19947622,86812.50$9,525
Jan 19941,0373,07312.66$13,128
Dec 19931,0693,29712.33$13,181
Nov 19931,0323,18614.49$14,954
Oct 19939063,42115.85$14,360
Sep 19931,0003,65815.03$15,030
Aug 19931,0263,93015.66$16,067
Jul 19931,0393,73615.46$16,063
Jun 19931,3263,73016.79$22,264
May 19931,0643,90017.68$18,812
Apr 19931,0713,68718.05$19,332
Mar 19931,3433,89118.14$24,362
Feb 19931,0783,49217.90$19,296
Jan 19931,0803,93916.93$18,284

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/8786 is the state's own key, not one this site invented.