LAMBERT, M. F.

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the GRETA (4400) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 3976District 02Field 36867780OilCasinghead gasSave
Value, all time
$19.6 M
Jan 1993 – Sep 2021
Value, last 12 filed months
$32 k
at the published price for each month
Months reported
345
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition497,084 bbl$18,290,382
Casinghead gasProduction398,935 Mcf$1,357,939
Total$19,648,322

67,816 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 (17)

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 28.3698, -97.1847. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.5 miles.

28.36762, -97.18699 · 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
88.2%
15 of 17 wells
With a plug date
76.5%
13 of 17 wells
Median depth
5,150 ft
17 wells filed one
Completion to plug
43.3 years
median over 5 wells

What the state filed about each well

On the RRC proration schedule
1588.2%
A plug date is filed
1376.5%
BothOn the schedule and plugged. Neither fact cancels the other.
1376.5%
NeitherNo plug date, and not on the schedule.
211.8%

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

0k
2k
4k
6k
8k
10k
12k
15k
20k+

Total depth in feet, 17 of 17 wells. Median 5,150 ft, with the middle half between 4,400 and 6,101 ft; the shallowest is 4,392 ft and the deepest 6,405 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

50s
60s
70s
80s
90s
00s
10s
20s

Last completion by decade, 8 of 17 wells, Mar 1953 – Jul 2021. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Mar 1953 – Jul 2021
8 of 17 wells; 9 filed none
Plug dates filed
Jan 1988 – Jun 2023
13 of 17 wells; 4 filed none

Last completion to plug: a median of 43.3 years across the 5 wells that filed both dates, with the middle half between 18.5 years and 43.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

17 wells

42-3910111234,399 ftJan 1988Yes
42-3910111524,400 ftMay 1992Yes
42-3910111644,392 ftMay 1992Yes
42-39101117154,394 ftJan 1988Yes
42-3910119764,392 ftYes
42-3910119876,278 ftMar 1995Yes
42-39101201105,489 ftJul 1990Yes
42-39101203125,925 ftMar 1995Yes
42-39101204145,150 ftDec 2017Yes
42-39101205196,269 ftJul 2021Aug 2021Yes
42-39131263109 U5,890 ftDec 2010Yes
42-39101202116,300 ftApr 2001Oct 2019Yes
42-391313841184,552 ftMar 1980
42-391313711144,542 ftFeb 1980Jun 2023Yes
42-391312981124,762 ftDec 1978
42-391012086A6,101 ftApr 1975Feb 2019Yes
42-39101222136,405 ftMar 1953May 2001Yes

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 (345)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

345 months

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 2021289061.302.72$17,716
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 2020330044.642.68$14,731
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 202042472914.751.80$7,569
Mar 202049520330.341.86$15,395
Feb 20208421,05649.881.98$44,091
Jan 202098723357.252.09$56,994
Dec 201965319959.012.30$38,992
Nov 201970324655.302.75$39,553
Oct 201949524053.472.42$27,048
Sep 20191,03021755.052.66$57,278
Aug 20191,32519753.112.30$70,825
Jul 201984223156.272.46$47,948
Jun 201960013152.782.49$31,994
May 20191,23330458.482.74$72,939
Apr 20191,09413562.632.75$68,889
Mar 201984487056.803.06$50,603
Feb 201961829750.852.79$32,255
Jan 20197741,09846.033.23$39,172
Dec 20183461,83146.594.19$23,784
Nov 201869245152.934.24$38,539
Oct 201848976361.443.40$32,637
Sep 20181,05131059.543.11$63,540
Aug 2018046559.403.07$1,426
Jul 20183904365.142.93$25,531
Jun 201839110360.183.08$23,847
May 201878714265.382.90$51,866
Apr 201895515763.842.90$61,423
Mar 201812818661.222.79$8,355
Feb 2018223961.782.77$13,802
Jan 20182723862.874.01$17,253
Dec 20174709257.272.92$27,186
Nov 20173909155.423.12$21,898
Oct 20175739649.292.98$28,530
Sep 201701747.523.09$52
Aug 20173436345.373.00$15,751
Jul 201768210843.873.09$30,253
Jun 201734410242.493.09$14,931
May 20176806745.373.26$31,070
Apr 201757111547.933.21$27,737
Mar 201756933046.772.98$27,597
Feb 201772433050.452.95$37,500
Jan 201790330049.413.42$45,643
Dec 201651030148.763.72$25,988
Nov 201663747742.492.64$28,327
Oct 201666336446.193.09$31,749
Sep 201664037041.553.10$27,739
Aug 201665925341.442.92$28,049
Jul 201666025641.622.92$28,218
Jun 201691314845.352.69$41,802
May 201659722142.521.99$25,824
Apr 201682110736.561.99$30,229
Mar 201636623033.011.79$12,494
Feb 201664764126.472.06$18,449
Jan 201674228927.352.36$20,977
Dec 201549125032.362.00$16,389
Nov 201586724838.792.17$34,168
Oct 201561860143.552.43$28,372
Sep 201566324842.992.76$29,186
Aug 201532124840.162.87$13,604
Jul 201533415548.152.95$16,539
Jun 201548015056.152.88$27,384
May 201546264655.212.96$27,416
Apr 201536258349.822.71$19,613
Mar 20151878042.892.93$3,061
Feb 20153541,52144.662.98$20,336
Jan 20151831,38843.433.10$12,251
Dec 20143421,26354.693.59$23,240
Nov 20142581,05470.464.25$22,660
Oct 20144521,15078.303.90$39,878
Sep 20144941,01386.164.05$46,661
Aug 2014861,15689.394.04$12,352
Jul 20142581,15296.564.18$29,727
Jun 201462673998.164.74$64,949
May 20148861,07494.734.73$89,007
Apr 20148581,10395.944.81$87,621
Mar 201481793995.895.06$83,090
Feb 20144581,02397.406.19$50,944
Jan 20142791,44590.404.86$32,245
Dec 201384887191.824.35$81,656
Nov 20131,0381,04788.853.74$96,140
Oct 201374287097.423.78$75,574
Sep 20139181,673104.113.72$101,793
Aug 20139171,763104.253.52$101,808
Jul 20139481,800102.523.72$103,881
Jun 201328865394.403.93$29,756
May 20135831,93894.834.15$63,327
Apr 20137231,85893.964.28$75,890
Mar 20139791,36693.623.91$96,999
Feb 201382298991.233.42$78,373
Jan 20139031,27591.603.42$87,075
Dec 20129791,18086.773.42$88,984
Nov 20127911,21586.953.62$73,182
Oct 20126961,48789.383.40$67,264
Sep 20127381,68794.672.92$74,790
Aug 20127621,57592.662.91$75,187
Jul 20127621,72685.133.02$70,083
Jun 20127681,59079.822.52$65,307
May 20121,0181,35591.612.49$96,631
Apr 20121,0561,438101.652.00$110,214
Mar 20121,1031,533105.052.22$119,277
Feb 20121,0911,419101.102.57$113,947
Jan 20121,1171,50398.092.73$113,676
Dec 2011781,00896.873.24$10,822
Nov 20111,2181,54495.723.31$121,700
Oct 201151660984.983.65$46,072
Sep 20118981,34583.623.99$80,452
Aug 20111,1761,24083.404.15$103,224
Jul 20119771,20994.144.52$97,436
Jun 201153057592.904.64$51,905
May 20111,0171,20098.134.40$105,084
Apr 20111,0381,297105.964.33$115,607
Mar 201189999496.364.06$90,661
Feb 20118441,06985.644.18$76,749
Jan 20111,2271,59886.504.59$113,468
Dec 20101,0261,37285.734.35$93,924
Nov 20101,1581,28580.843.80$98,490
Oct 20101,1961,22878.103.51$97,717
Sep 20101,4881,28172.633.98$113,171
Aug 20101,4751,19273.684.42$113,946
Jul 20108621,19972.554.74$68,217
Jun 20101,0981,10270.364.91$82,667
May 20101,0721,16971.124.24$81,192
Apr 20107081,10781.694.12$62,400
Mar 20108501,08278.394.39$71,380
Feb 20106901,08773.585.44$56,686
Jan 20101,0401,00774.365.96$83,340
Dec 20091,1341,07271.445.48$86,892
Nov 20097981,45774.593.75$64,989
Oct 20099171,67272.544.11$73,392
Sep 20091,2821,39765.543.06$88,304
Aug 20091,5371,42767.423.22$108,217
Jul 20091,7231,39661.133.46$110,163
Jun 20091,6081,20766.163.90$111,087
May 20091,6921,10354.743.93$96,950
Apr 20091,48291746.773.59$72,603
Mar 20091,4441,07242.144.06$65,201
Feb 20091,41878332.814.63$50,152
Jan 20091,45490735.865.37$57,012
Dec 20081,4751,28937.105.98$62,427
Nov 20081,4581,06755.496.86$88,224
Oct 20088061,22775.246.92$69,137
Sep 20081,3531,257101.767.88$147,583
Aug 20081,4441,227114.228.48$175,342
Jul 20081,3821,127131.0811.39$193,988
Jun 20081,474887131.3313.03$205,140
May 2008777667123.1711.57$103,423
Apr 20081,098878110.3110.45$130,300
Mar 20081,227927101.909.66$133,990
Feb 20081,12080092.538.77$110,650
Jan 20081,5061,16590.388.21$145,672
Dec 20071,3821,22788.337.30$131,032
Nov 200774870791.677.29$73,724
Oct 20071,19683482.856.92$104,862
Sep 200713370775.846.24$14,501
Aug 20071,41392769.066.39$103,503
Jul 20071,11383770.906.39$84,258
Jun 20071,12283762.007.55$75,882
May 20071371,12758.747.85$16,890
Apr 20071,3731,03259.617.81$89,900
Mar 20071,53796556.927.30$94,532
Feb 20071,39681055.108.22$83,575
Jan 20071,63092750.306.73$88,225
Dec 20061,22789656.656.92$75,708
Nov 20061,2171,37854.207.62$76,458
Oct 20061,0481,08654.906.01$64,066
Sep 20061,6301,45360.085.04$105,249
Aug 20061,7461,50968.717.34$131,044
Jul 20061,6061,26869.376.34$119,451
Jun 20061,3101,23866.286.38$94,730
May 20061,4611,35866.016.42$105,166
Apr 20061,4851,21364.397.36$104,547
Mar 20061,5721,17356.707.08$97,441
Feb 20061,4941,19357.597.75$95,287
Jan 20061,5501,14860.598.93$104,170
Dec 20051,27490854.9413.42$82,175
Nov 20051,22490854.6910.59$76,555
Oct 20051,22288858.3413.80$83,542
Sep 20051,17987861.4512.08$83,055
Aug 20051,80093361.519.80$119,858
Jul 20051,25190555.697.84$76,767
Jun 200597075352.337.38$56,318
May 20051,24575645.226.65$61,327
Apr 20051,43481849.207.36$76,574
Mar 20051,71897850.377.15$93,533
Feb 20051,53893045.226.31$75,418
Jan 20051,7601,02843.166.32$82,461
Dec 20041,6981,02839.866.75$74,622
Nov 20041,31782045.286.33$64,825
Oct 20041,5871,00049.706.52$85,389
Sep 20041,39297843.245.28$65,358
Aug 20041,6981,12842.375.55$78,205
Jul 20041,7291,08338.286.08$72,775
Jun 20041,31493836.106.43$53,470
May 20041,66788337.486.49$68,214
Apr 20041,40453634.475.86$51,536
Mar 20041,48194934.365.53$56,135
Feb 20041,4741,09132.455.51$53,842
Jan 20041,32695932.036.30$48,513
Dec 20031,35792830.266.30$46,911
Nov 20031,80295828.804.60$56,300
Oct 20031,15872828.174.76$36,086
Sep 20031,42692026.314.75$41,887
Aug 20031,62282829.765.13$52,518
Jul 20031,90391129.415.17$60,678
Jun 20031,8301,04328.565.98$58,505
May 20032,0531,00826.595.97$60,610
Apr 20032,06999826.675.41$60,577
Mar 20032,1801,12031.146.10$74,713
Feb 20031,8681,25133.487.93$72,456
Jan 20031,6971,23830.315.58$58,347
Dec 20022,0931,23126.914.85$62,298
Nov 20022,0661,27024.664.14$56,202
Oct 20021,9311,25526.464.23$56,402
Sep 20022,1021,51027.443.64$63,168
Aug 20022,8521,72625.963.16$79,499
Jul 20021,6381,21124.583.06$43,970
Jun 20021,4551,08023.733.34$38,132
May 20021,9811,41824.663.58$53,934
Apr 20022,5801,74023.653.51$67,128
Mar 20022,5991,50022.003.10$61,832
Feb 20022,5281,65218.222.38$49,985
Jan 20022,8711,88817.172.38$53,780
Dec 20012,4691,72116.932.36$45,869
Nov 20012,47892818.072.41$47,010
Oct 20012,4491,06319.782.53$51,129
Sep 20012,2491,05224.262.25$56,929
Aug 20012,0291,04024.873.05$53,637
Jul 20012,16098923.933.20$54,851
Jun 20012,5501,17024.563.82$67,102
May 20012,6972,31425.524.31$78,795
Apr 20011,52865024.685.34$41,179
Mar 20011,60978024.545.38$43,678
Feb 20011,57354027.755.77$46,765
Jan 20012,29074927.478.40$69,197
Dec 20001,9361,00726.889.12$61,226
Nov 20001,7481,34232.215.66$63,896
Oct 20002,0842,16031.235.15$76,198
Sep 20002,5503,53731.875.19$99,613
Aug 20001,85376729.644.54$58,406
Jul 20002,04455528.534.09$60,585
Jun 20001,7171,96829.304.40$58,962
May 20002,4808,57327.263.68$99,151
Apr 20001,8594,36024.513.12$59,150
Mar 20001,88193228.422.86$56,123
Feb 20001,4601,50027.622.73$44,415
Jan 20001,71859225.272.48$44,882
Dec 19991,93947724.282.42$48,235
Nov 19991,8001,44423.192.43$45,257
Oct 19992,0465,40920.982.80$58,090
Sep 19992,2242,58821.752.62$55,150
Aug 19992,0111,08519.262.88$41,852
Jul 19992,1231,11117.892.37$40,616
Jun 19991,7891,21615.942.36$31,389
May 19992,4244,56815.792.32$48,877
Apr 19992,0866,15915.102.21$45,098
Mar 19992,0777,68812.471.84$40,033
Feb 19991,1323,7159.981.82$18,050
Jan 19992,3936,10310.381.90$36,435
Dec 19982,4495,0089.201.77$31,412
Nov 19982,3706,80410.892.19$40,681
Oct 19981,58370712.421.97$21,053
Sep 19982,34090212.592.08$31,339
Aug 19981,8492,59911.301.91$25,851
Jul 19982,5113,53311.742.24$37,383
Jun 19982,4607,13211.242.24$43,607
May 19982,4086,80312.622.21$45,399
Apr 19982,4461,72913.042.51$36,228
Mar 19982,6811,85012.802.31$38,589
Feb 19982,9292,01413.952.30$45,490
Jan 19982,4061,34514.702.15$38,266
Dec 19972,4002,27016.322.41$44,641
Nov 19972,07715918.193.09$38,272
Oct 19972,43712519.253.15$47,306
Sep 19972,43018317.742.95$43,649
Aug 19972,8211,98917.862.55$55,464
Jul 19972,53741317.582.25$45,528
Jun 19972,10614317.242.26$36,630
May 19972,72023018.972.31$52,129
Apr 19972,70036617.882.08$49,038
Mar 19972,75933418.951.94$52,931
Feb 19972,52021120.492.21$52,100
Jan 19972,85236123.483.54$68,243
Dec 19962,79025923.32$65,063
Nov 19962,73030421.97$59,978
Oct 19962,74523823.31$63,986
Sep 19962,64033722.22$58,661
Aug 19963,00743920.26$60,922
Jul 19962,51146219.55$49,090
Jun 19962,52021718.73$47,200
May 19962,69772619.43$52,403
Apr 19962,55029721.51$54,851
Mar 19962,72851719.38$52,869
Feb 19962,52370816.98$42,841
Jan 19962,6971,33017.07$46,038
Dec 19952,6041,92617.19$44,763
Nov 19952,3701,88616.00$37,920
Oct 19952,4491,15015.43$37,788
Sep 19952,5051,04016.18$40,531
Aug 19952,4801,94615.92$39,482
Jul 19952,4701,54915.24$37,643
Jun 19951,80054616.41$29,538
May 19952,37256817.56$41,652
Apr 19952,32148917.73$41,151
Mar 19952,67670316.44$43,993
Feb 19952,35290216.58$38,996
Jan 19952,5732,03115.92$40,962
Dec 19942,4182,01015.03$36,343
Nov 19942,43087915.90$38,637
Oct 19943,0771,37415.58$47,940
Sep 19943,2961,74615.29$50,396
Aug 19942,8421,88516.13$45,841
Jul 19943,5542,41217.56$62,408
Jun 19942,9761,69517.09$50,860
May 19942,5161,75315.88$39,954
Apr 19942,9951,98114.14$42,349
Mar 19943,1261,95812.46$38,950
Feb 19942,2501,79812.50$28,125
Jan 19944,1082,10712.66$52,007
Dec 19933,2581,90112.33$40,171
Nov 19933,25337914.49$47,136
Oct 19932,3311,74915.85$36,946
Sep 19933,1332,16015.03$47,089
Aug 19932,8942,38615.66$45,320
Jul 19933,3612,55215.46$51,961
Jun 19932,7562,48516.79$46,273
May 19933,1092,52117.68$54,967
Apr 19932,5522,31718.05$46,064
Mar 19933,6252,41018.14$65,758
Feb 19932,1182,16317.90$37,912
Jan 19933,2082,62516.93$54,311

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.

Mar 2021 — as filed, then multipliedworked
Oil                  289 bbl  × $ 61.30 =    $17,716
Casinghead gas         0 Mcf  × $  2.72 =         $0

────────────────────────────────────────────────────
Month total                                  $17,716

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/3976 is the state's own key, not one this site invented.