CALVERLY, STEVE, JR "B"

Operated by ENDEAVOR ENERGY RESOURCES L.P. (P-5 251726) in the BLALOCK LAKE, E. (WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 24461District 08Field 08735500NGPA filingOilCasinghead gasSaveExport
Value, all time
$9.5 M
Jan 1993 – Nov 2019
Value, last 12 filed months
$0
at the published price for each month
Months reported
323
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 16 leases and 29 wells, and the rule below applies to all of them.

Discovered
1971-10-01
as the register files it
Field class
Oil
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 1991-02-01.

The Commission's schedule remark for this field reads: #85280300 EFF 12/01/2019

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
OilDisposition324,160 bbl$7,357,563
Casinghead gasProduction788,427 Mcf$2,132,729
Total$9,490,292

282,351 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 (6)

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 31.9319, -101.6245. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

31.93144, -101.62432 · 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
100.0%
6 of 6 wells
With a plug date
100.0%
6 of 6 wells
Median depth
8,125 ft
6 wells filed one
Completion to plug
29.7 years
median over 6 wells

What the state filed about each well

On the RRC proration schedule
6100.0%
A plug date is filed
6100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
6100.0%
NeitherNo plug date, and not on the schedule.
00.0%

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

Between 7,955 and 8,200 ft, median 8,125 ft, over the 6 wells that filed a depth.

Completions filed
Feb 1977 – Dec 1985
6 of 6 wells
Plug dates filed
Jun 1996 – Jul 2024
6 of 6 wells

Last completion to plug: a median of 29.7 years across the 6 wells that filed both dates, with the middle half between 21.5 years and 34.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

6 wells

42-1733191370148,200 ftDec 1985Jul 2024Yes
42-1733183080148,200 ftSep 1985Apr 2019Yes
42-1733168750148,200 ftNov 1984Apr 2019Yes
42-1733088738,023 ftJan 1978Feb 1998Yes
42-1733045327,955 ftJun 1977Jun 1996Yes
42-1733043218,050 ftFeb 1977Nov 2002Yes

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 (323)

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

323 months

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 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 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 2013176094.403.93$16,614
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 2013027393.623.91$1,068
Feb 2013038691.233.42$1,320
Jan 201318353991.603.42$18,606
Dec 2012050586.773.42$1,727
Nov 2012010986.953.62$395
Oct 2012061589.383.40$2,091
Sep 201217762094.672.92$18,566
Aug 2012059292.662.91$1,722
Jul 201217765085.133.02$17,032
Jun 2012084579.822.52$2,129
May 201217479791.612.49$17,923
Apr 2012178739101.652.00$19,569
Mar 2012185658105.052.22$20,896
Feb 20120617101.102.57$1,586
Jan 201217965598.092.73$19,349
Dec 2011067696.873.24$2,190
Nov 201118579295.723.31$20,331
Oct 2011075484.983.65$2,751
Sep 2011070983.623.99$2,826
Aug 201116765983.404.15$16,662
Jul 201118883094.144.52$21,448
Jun 201118376892.904.64$20,564
May 201117473298.134.40$20,299
Apr 2011166758105.964.33$20,874
Mar 201118562096.364.06$20,342
Feb 201117769885.644.18$18,076
Jan 20111761,02186.504.59$19,909
Dec 20103521,08985.734.35$34,912
Nov 20102901,13680.843.80$27,755
Oct 20102781,20678.103.51$25,944
Sep 20102881,14572.633.98$25,474
Aug 20101841,30073.684.42$19,302
Jul 20102071,29972.554.74$21,171
Jun 20103251,29170.364.91$29,206
May 201001,36671.124.24$5,785
Apr 201026492381.694.12$25,371
Mar 20103181,40578.394.39$31,094
Feb 20103611,21573.585.44$33,175
Jan 20103531,39074.365.96$34,539
Dec 20093501,61271.445.48$33,844
Nov 200934191774.593.75$28,875
Oct 2009078772.544.11$3,235
Sep 2009075865.543.06$2,323
Aug 2009081567.423.22$2,623
Jul 200931162161.133.46$21,163
Jun 2009079866.163.90$3,108
May 2009082154.743.93$3,223
Apr 200934978546.773.59$19,139
Mar 200932887442.144.06$17,369
Feb 200933893432.814.63$15,417
Jan 2009085135.865.37$4,571
Dec 2008075037.105.98$4,483
Nov 200824577155.496.86$18,884
Oct 20082921,14775.246.92$29,910
Sep 20083431,041101.767.88$43,104
Aug 20085531,510114.228.48$75,973
Jul 20082951,371131.0811.39$54,284
Jun 20082801,148131.3313.03$51,734
May 20083431,429123.1711.57$58,787
Apr 20086471,366110.3110.45$85,652
Mar 20086911,747101.909.66$87,296
Feb 20083641,57592.538.77$47,495
Jan 20081,0691,47490.388.21$108,711
Dec 20073581,45688.337.30$42,254
Nov 20073621,79691.677.29$46,280
Oct 20073612,03482.856.92$43,988
Sep 20071,0591,83175.846.24$91,748
Aug 20076551,97169.066.39$57,825
Jul 20077162,07170.906.39$63,994
Jun 20073601,86062.007.55$36,360
May 20073492,00158.747.85$36,201
Apr 20076331,61059.617.81$50,300
Mar 20076561,16656.927.30$45,854
Feb 200701,16955.108.22$9,605
Jan 20076571,32850.306.73$41,980
Dec 20063681,72856.656.92$32,802
Nov 20062621,93454.207.62$28,933
Oct 20063562,00754.906.01$31,614
Sep 20063401,90760.085.04$30,033
Aug 20063612,02968.717.34$39,697
Jul 200602,11869.376.34$13,434
Jun 20063291,89766.286.38$33,916
May 20066842,24266.016.42$59,556
Apr 20061932,36064.397.36$29,798
Mar 20064991,94856.707.08$42,091
Feb 200601,61857.597.75$12,541
Jan 200602,15760.598.93$19,269
Dec 20053462,17354.9413.42$48,161
Nov 20053561,69454.6910.59$37,406
Oct 200502,29658.3413.80$31,675
Sep 200502,22161.4512.08$26,827
Aug 200502,37461.519.80$23,258
Jul 2005902,08555.697.84$21,366
Jun 20055582,44252.337.38$47,225
May 200502,76645.226.65$18,397
Apr 20053522,80649.207.36$37,972
Mar 200502,71450.377.15$19,418
Feb 20053583,17845.226.31$36,248
Jan 200502,22443.166.32$14,061
Dec 20043182,01839.866.75$26,299
Nov 200401,58745.286.33$10,046
Oct 20043631,89249.706.52$30,368
Sep 20043412,01743.245.28$25,402
Aug 200402,74442.375.55$15,231
Jul 20043192,32738.286.08$26,369
Jun 200401,67836.106.43$10,795
May 20047112,76637.486.49$44,612
Apr 20049893,39234.475.86$53,963
Mar 20043132,82334.365.53$26,366
Feb 20043581,49932.455.51$19,876
Jan 20046952,43832.036.30$37,619
Dec 20036782,09530.266.30$33,718
Nov 20033591,58228.804.60$17,609
Oct 20033491,50128.174.76$16,976
Sep 20033522,26926.314.75$20,037
Aug 20036801,79429.765.13$29,440
Jul 20037081,69829.415.17$29,602
Jun 20033521,82728.565.98$20,984
May 20033421,69426.595.97$19,212
Apr 20033261,98026.675.41$19,401
Mar 20031,0671,94131.146.10$45,059
Feb 20037001,44733.487.93$34,905
Jan 20038141,43630.315.58$32,688
Dec 20025691,47026.914.85$22,447
Nov 20021,0781,50324.664.14$32,801
Oct 20026802,01126.464.23$26,498
Sep 20026212,08527.443.64$24,620
Aug 20023501,99925.963.16$15,411
Jul 20021,0472,96924.583.06$34,826
Jun 20023522,96623.733.34$18,254
May 20026933,38924.663.58$29,236
Apr 20021,0172,56723.653.51$33,068
Mar 20021,0073,31822.003.10$32,449
Feb 20027002,85518.222.38$19,537
Jan 20021,3592,88317.172.38$30,183
Dec 20011,0413,14216.932.36$25,053
Nov 20011,3283,02118.072.41$31,264
Oct 20018843,35719.782.53$25,975
Sep 20019313,37724.262.25$30,189
Aug 20016563,28324.873.05$26,338
Jul 20016933,37323.933.20$27,367
Jun 20019422,69724.563.82$33,449
May 20019523,00025.524.31$37,217
Apr 20011,7073,11624.685.34$58,754
Mar 20018872,77824.545.38$36,703
Feb 20011,0223,26927.755.77$47,213
Jan 20019553,72627.478.40$57,528
Dec 20001,7923,20326.889.12$77,388
Nov 20001,0643,62732.215.66$54,793
Oct 20002,0184,25131.235.15$84,896
Sep 20009554,21831.875.19$52,313
Aug 20001,0134,60829.644.54$50,949
Jul 20002,0865,01828.534.09$80,036
Jun 20001,1604,97229.304.40$55,851
May 20001,6495,12427.263.68$63,807
Apr 20001,6595,10724.513.12$56,576
Mar 20002,1045,42328.422.86$75,304
Feb 20007096,34327.622.73$36,877
Jan 20007304,06925.272.48$28,540
Dec 19991,0894,12424.282.42$36,436
Nov 19991,0794,76623.192.43$36,622
Oct 19991,7745,72720.982.80$53,275
Sep 19991,3345,70221.752.62$43,947
Aug 19991,0745,96819.262.88$37,847
Jul 19999565,60517.892.37$30,400
Jun 19991,0805,11215.942.36$29,290
May 19991,4295,99715.792.32$36,483
Apr 19991,7465,76815.102.21$39,101
Mar 19992,1336,38612.471.84$38,338
Feb 19991,4495,0299.981.82$23,603
Jan 19991,4365,28410.381.90$24,945
Dec 19981,5975,4539.201.77$24,362
Nov 19982,2955,14610.892.19$36,240
Oct 19982,1065,80812.421.97$37,594
Sep 19981,7426,04412.592.08$34,519
Aug 19982,4636,45411.301.91$40,142
Jul 19982,4257,18811.742.24$44,551
Jun 19982,4646,70811.242.24$42,703
May 19982,7936,88412.622.21$50,436
Apr 19981,7846,42813.042.51$39,368
Mar 19983,1907,43512.802.31$58,003
Feb 19981,4264,59913.952.30$30,466
Jan 19981,7244,69214.702.15$35,453
Dec 19972,7174,70316.322.41$55,681
Nov 19972,7916,48718.193.09$70,802
Oct 19971,7446,63419.253.15$54,468
Sep 19972,1385,84817.742.95$55,208
Aug 19972,5066,22617.862.55$60,663
Jul 19972,8787,15917.582.25$66,681
Jun 19972,5215,53817.242.26$55,962
May 19973,5476,45918.972.31$82,197
Apr 19971,8212,79617.882.08$38,383
Mar 19972,5383,45118.951.94$54,787
Feb 19972,1823,43620.492.21$52,289
Jan 19971,8134,97523.483.54$60,179
Dec 19962,9024,10423.32$67,675
Nov 19963,4936,21921.97$76,741
Oct 19962,9144,85323.31$67,925
Sep 19962,8705,38122.22$63,771
Aug 19963,2526,12120.26$65,886
Jul 19963,4386,19419.55$67,213
Jun 19962,5045,55718.73$46,900
May 19962,5355,58419.43$49,255
Apr 19963,0984,82021.51$66,638
Mar 19962,5075,46119.38$48,586
Feb 19962,9245,29716.98$49,650
Jan 19962,8995,03117.07$49,486
Dec 19953,6056,00717.19$61,970
Nov 19952,9115,52516.00$46,576
Oct 19954,0216,47815.43$62,044
Sep 19953,2376,59416.18$52,375
Aug 19953,2606,23215.92$51,899
Jul 19953,2485,96515.24$49,500
Jun 19953,3056,17716.41$54,235
May 19953,9177,26517.56$68,783
Apr 19954,2276,73417.73$74,945
Mar 19953,4686,75116.44$57,014
Feb 19953,4845,71116.58$57,765
Jan 19954,2756,46015.92$68,058
Dec 19943,8316,11015.03$57,580
Nov 19943,5635,88315.90$56,652
Oct 19944,1676,09015.58$64,922
Sep 19944,2015,76215.29$64,233
Aug 19944,9137,45916.13$79,247
Jul 19944,1605,28017.56$73,050
Jun 19943,8844,53517.09$66,378
May 19944,9285,83615.88$78,257
Apr 19944,6466,52914.14$65,694
Mar 19944,1345,23412.46$51,510
Feb 19944,3925,12812.50$54,900
Jan 19943,8475,24712.66$48,703
Dec 19934,9215,20712.33$60,676
Nov 19933,7305,32214.49$54,048
Oct 19933,9386,05015.85$62,417
Sep 19934,5456,17815.03$68,311
Aug 19934,5736,90715.66$71,613
Jul 19932,8445,74515.46$43,968
Jun 19934,4579,39516.79$74,833
May 19933,5435,94417.68$62,640
Apr 19934,2375,97118.05$76,478
Mar 19934,2565,55018.14$77,204
Feb 19934,2174,98817.90$75,484
Jan 19933,6045,48016.93$61,016

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.

Jun 2013 — as filed, then multipliedworked
Oil                  176 bbl  × $ 94.40 =    $16,614
Casinghead gas         0 Mcf  × $  3.93 =         $0

────────────────────────────────────────────────────
Month total                                  $16,614

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/24461 is the state's own key, not one this site invented.