LAMBERT, M. F., -A-

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the GRETA (3500) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4004District 02Field 36867756OilCasinghead gasSaveExport
Value, all time
$7.4 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 12 leases and 16 wells, and the rule below applies to all of them.

Discovered
1955-06-28
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

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
OilDisposition156,629 bbl$5,626,549
Casinghead gasProduction373,928 Mcf$1,727,016
Total$7,353,565

25,212 Mcf of this lease's gas, across 44 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 28.3631, -97.1960. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

28.36310, -97.19600 · 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

42-391012423

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 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 2023103070.622.23$7,274
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
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 20190055.302.75$0
Oct 20190053.472.42$0
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 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 2017171045.373.26$7,758
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 2016350046.193.09$16,167
Sep 20163531,33441.553.10$18,803
Aug 20163363041.442.92$14,012
Jul 2016344041.622.92$14,317
Jun 2016337045.352.69$15,283
May 201634147142.521.99$15,437
Apr 201634239336.561.99$13,286
Mar 201635045733.011.79$12,373
Feb 201634889126.472.06$11,050
Jan 20163541,23627.352.36$12,604
Dec 20153532,56232.362.00$16,551
Nov 20153592,56238.792.17$19,478
Oct 20153622,45643.552.43$21,725
Sep 20153651,60842.992.76$20,127
Aug 20153481,70640.162.87$18,876
Jul 20153681,15748.152.95$21,127
Jun 20157431,28756.152.88$45,430
May 201501,20455.212.96$3,558
Apr 20153711,52749.822.71$22,616
Mar 20153351,54242.892.93$18,893
Feb 20159161,36644.662.98$44,974
Jan 201501,86143.433.10$5,770
Dec 201435698954.693.59$23,022
Nov 201435778370.464.25$28,483
Oct 20147471,09178.303.90$62,746
Sep 20143571,20986.164.05$35,650
Aug 20143621,05589.394.04$36,616
Jul 201434067396.564.18$35,643
Jun 20143581,42298.164.74$41,877
May 201436262694.734.73$37,251
Apr 201435042095.944.81$35,599
Mar 201452631595.895.06$52,031
Feb 201452957697.406.19$55,091
Jan 20143551,29490.404.86$38,382
Dec 20133621,17391.824.35$38,347
Nov 20133411,47088.853.74$35,793
Oct 20133721,32897.423.78$41,259
Sep 20133481,104104.113.72$40,335
Aug 2013352670104.253.52$39,056
Jul 20133471,691102.523.72$41,861
Jun 20137362,21394.403.93$78,183
May 2013072494.834.15$3,004
Apr 2013098393.964.28$4,210
Mar 201337394893.623.91$38,630
Feb 201334987191.233.42$34,818
Jan 2013042091.603.42$1,436
Dec 201235511486.773.42$31,193
Nov 201234939786.953.62$31,785
Oct 20123331,74589.383.40$35,696
Sep 201235130994.672.92$34,131
Aug 20121651,62392.662.91$20,009
Jul 20121621,58785.133.02$18,585
Jun 201235792579.822.52$30,826
May 20127081,32191.612.49$68,147
Apr 20123491,261101.652.00$37,994
Mar 2012716769105.052.22$76,925
Feb 201201,138101.102.57$2,925
Jan 20123561,20898.092.73$38,223
Dec 201134457696.873.24$35,189
Nov 20113572695.723.31$34,258
Oct 201175677384.983.65$67,065
Sep 20113521,54183.623.99$35,576
Aug 20113391,23583.404.15$33,397
Jul 20116841,51594.144.52$71,235
Jun 20113531,56092.904.64$40,032
May 20111751,28098.134.40$22,811
Apr 2011522770105.964.33$58,648
Mar 201169746096.364.06$69,029
Feb 2011033985.644.18$1,417
Jan 201172041986.504.59$64,203
Dec 2010052485.734.35$2,278
Nov 201069738380.843.80$57,799
Oct 2010036478.103.51$1,277
Sep 2010044372.633.98$1,763
Aug 20101,18756573.684.42$89,955
Jul 2010077672.554.74$3,676
Jun 201053598570.364.91$42,479
May 201001,09671.124.24$4,642
Apr 20100081.694.12$0
Mar 20102001078.394.39$15,722
Feb 2010227373.585.44$16,719
Jan 201063570574.365.96$51,423
Dec 200901,81871.445.48$9,969
Nov 200929528374.593.75$23,066
Oct 20095912,23872.544.11$52,070
Sep 2009024165.543.06$739
Aug 200927933767.423.22$19,895
Jul 20095401,46261.133.46$38,075
Jun 200913428966.163.90$9,991
May 200955424254.743.93$31,276
Apr 2009026646.773.59$954
Mar 200927825142.144.06$12,734
Feb 200956526632.814.63$19,770
Jan 2009029535.865.37$1,584
Dec 200880669237.105.98$34,039
Nov 200841581255.496.86$28,599
Oct 200801,32475.246.92$9,165
Sep 20080558101.767.88$4,395
Aug 2008373691114.228.48$48,466
Jul 20080546131.0811.39$6,219
Jun 200896248131.3313.03$15,840
May 2008204444123.1711.57$30,266
Apr 20082182,088110.3110.45$45,877
Mar 200803,546101.909.66$34,269
Feb 20083292,97992.538.77$56,570
Jan 20082161,79490.388.21$34,243
Dec 200727764088.337.30$29,141
Nov 20073831,52691.677.29$46,237
Oct 200701,31782.856.92$9,116
Sep 200701,39175.846.24$8,686
Aug 20073222,06669.066.39$35,435
Jul 200701,70570.906.39$10,891
Jun 20076582,68562.007.55$61,064
May 20073712,41858.747.85$40,765
Apr 200702,23959.617.81$17,476
Mar 20074302,17056.927.30$40,321
Feb 20075272,12855.108.22$46,521
Jan 200702,35650.306.73$15,848
Dec 20064332,51156.656.92$41,902
Nov 20064202,43054.207.62$41,274
Oct 20064092,51154.906.01$37,555
Sep 20063332,43060.085.04$32,247
Aug 20066242,51168.717.34$61,306
Jul 20062792,20169.376.34$33,315
Jun 20065652,79066.286.38$55,259
May 20068212,72866.016.42$71,722
Apr 20067161,41064.397.36$56,482
Mar 200601,86056.707.08$13,174
Feb 20061,0151,79257.597.75$72,344
Jan 200601,89160.598.93$16,893
Dec 20056649,77854.9413.42$167,656
Nov 20056822,73054.6910.59$66,205
Oct 20056281,80158.3413.80$61,484
Sep 200502,48061.4512.08$29,956
Aug 20056432,42761.519.80$63,328
Jul 20056682,11455.697.84$53,782
Jun 20056462,78652.337.38$54,369
May 20056302,04045.226.65$42,057
Apr 20052831,83949.207.36$27,460
Mar 200564670550.377.15$37,583
Feb 200501,75945.226.31$11,103
Jan 20056002,10243.166.32$39,185
Dec 20046639,73239.866.75$92,129
Nov 20046362,79045.286.33$46,460
Oct 20045132,79049.706.52$43,673
Sep 20047962,86643.245.28$49,563
Aug 20046931,95342.375.55$40,203
Jul 20043548,92938.286.08$67,877
Jun 20046737,92736.106.43$75,290
May 20045241,86037.486.49$31,719
Apr 20046561,44034.475.86$31,049
Mar 20041,0921,48834.365.53$45,750
Feb 200403,33732.455.51$18,386
Jan 20043632,04632.036.30$24,516
Dec 20037412,04630.266.30$35,316
Nov 20034001,35028.804.60$17,723
Oct 200392835528.174.76$27,831
Sep 200329925826.314.75$9,092
Aug 200338222529.765.13$12,523
Jul 200317812829.415.17$5,897
Jun 200350512328.565.98$15,159
May 200305526.595.97$329
Apr 20034649026.675.41$12,862
Mar 200350419331.146.10$16,871
Feb 2003502133.487.93$16,815
Jan 200368111130.315.58$21,261
Dec 20025155526.914.85$14,126
Nov 200250228224.664.14$13,546
Oct 200250616526.464.23$14,087
Sep 200250014227.443.64$14,236
Aug 20024964625.963.16$13,022
Jul 20026612,13324.583.06$22,778
Jun 20024991,68723.733.34$17,473
May 20026642,55624.663.58$25,535
Apr 20026602,90623.653.51$25,816
Mar 200266446522.003.10$16,051
Feb 20026452,20218.222.38$16,983
Jan 20023351,17017.172.38$8,532
Dec 20015001,00416.932.36$10,839
Nov 20018421,13218.072.41$17,938
Oct 20016801,77019.782.53$17,927
Sep 200116889924.262.25$6,100
Aug 200102,86624.873.05$8,750
Jul 200116118323.933.20$4,438
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 20010024.685.34$0
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 20010027.478.40$0
Dec 2000179026.889.12$4,812
Nov 20000032.215.66$0
Oct 2000350031.235.15$10,931
Sep 2000335031.875.19$10,676
Aug 2000336029.644.54$9,959
Jul 2000332028.534.09$9,472
Jun 2000344029.304.40$10,079
May 2000330027.263.68$8,996
Apr 2000652024.513.12$15,981
Mar 2000664128.422.86$18,874
Feb 2000663127.622.73$18,315
Jan 2000667125.272.48$16,858
Dec 19996691,38024.282.42$19,588
Nov 19996722,90523.192.43$22,654
Oct 19998492,83620.982.80$25,763
Sep 19996573,01121.752.62$22,175
Aug 19998242,80719.262.88$23,942
Jul 19996622,02217.892.37$16,640
Jun 19998222,31915.942.36$18,580
May 19999822,13515.792.32$20,461
Apr 19996691,92415.102.21$14,350
Mar 19996632,62812.471.84$13,099
Feb 199949239.981.82$4,916
Jan 19999831,69010.381.90$13,414
Dec 19988293,6709.201.77$14,135
Nov 19986653,39110.892.19$14,654
Oct 19988313,83712.421.97$17,877
Sep 19988113,56112.592.08$17,627
Aug 19988103,09011.301.91$15,047
Jul 19988333,28811.742.24$17,136
Jun 19988133,83111.242.24$17,709
May 19989883,62312.622.21$20,462
Apr 19988283,80813.042.51$20,337
Mar 19988353,38012.802.31$18,494
Feb 19988063,45413.952.30$19,185
Jan 19984744,20314.702.15$16,024
Dec 19978134,78816.322.41$24,813
Nov 19978073,81618.193.09$26,464
Oct 19978214,55819.253.15$30,161
Sep 19979823,89717.742.95$28,936
Aug 19979783,86517.862.55$27,341
Jul 199798817717.582.25$17,767
Jun 199781037417.242.26$14,809
May 199781115018.972.31$15,731
Apr 19976505217.882.08$11,730
Mar 19979976418.951.94$19,017
Feb 1997803020.492.21$16,453
Jan 1997634023.483.54$14,886
Dec 19968211123.32$19,146
Nov 19968291,28221.97$18,213
Oct 19968071,22323.31$18,811
Sep 19968071,31522.22$17,932
Aug 19968151,82120.26$16,512
Jul 19967931,98519.55$15,503
Jun 19968252,02618.73$15,452
May 1996842019.43$16,360
Apr 199681468021.51$17,509
Mar 19961,00535419.38$19,477
Feb 199683420216.98$14,161
Jan 199668315417.07$11,659
Dec 1995860017.19$14,783
Nov 19951,025016.00$16,400
Oct 1995828115.43$12,776
Sep 19958682216.18$14,044
Aug 19951,140015.92$18,149
Jul 1995664115.24$10,119
Jun 1995982116.41$16,115
May 19951,011117.56$17,753
Apr 199599243517.73$17,588
Mar 19951,013116.44$16,654
Feb 19958671416.58$14,375
Jan 19951,02128315.92$16,254
Dec 19941,0181,25715.03$15,301
Nov 199499229515.90$15,773
Oct 19941,01939115.58$15,876
Sep 19941,19680115.29$18,287
Aug 19941,0151,00316.13$16,372
Jul 19941,1681,26617.56$20,510
Jun 19941,221117.09$20,867
May 19941,205115.88$19,135
Apr 19941,320114.14$18,665
Mar 19941,14738412.46$14,292
Feb 19941,05548412.50$13,188
Jan 19941,21729412.66$15,407
Dec 19931,36732312.33$16,855
Nov 19931,2256514.49$17,750
Oct 19931,370115.85$21,715
Sep 19931,30221815.03$19,569
Aug 19931,37065815.66$21,454
Jul 19931,41640615.46$21,891
Jun 19931,18337116.79$19,863
May 19931,4611,35717.68$25,830
Apr 19931,38659818.05$25,017
Mar 19931,5591,42318.14$28,280
Feb 19931,37487017.90$24,595
Jan 19931,56493216.93$26,479

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 2023 — as filed, then multipliedworked
Oil                  103 bbl  × $ 70.62 =     $7,274
Casinghead gas         0 Mcf  × $  2.23 =         $0

────────────────────────────────────────────────────
Month total                                   $7,274

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. 02/O/4004 is the state's own key, not one this site invented.