DEAVER (CADDO CONGL) UNIT

Operated by SCHALK OIL COMPANY, INC. (P-5 750400) in the ALVORD (CADDO CONGLOMERATE) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 19402District 09Field 02143355NGPA filingOilCasinghead gasSaveExport
Value, all time
$12.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$343 k
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 136 leases and 225 wells, and the rule below applies to all of them.

Discovered
1954-07-29
as the register files it
Field class
Oil and gas
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 40 acres.

The Commission's schedule remark for this field reads: OF 80 AC./ DIVIDED BY 80 AC.

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
NGPA14none

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
OilDisposition251,105 bbl$11,030,572
Casinghead gasProduction588,801 Mcf$1,859,185
Total$12,889,757

83,254 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 (27)

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 33.3449, -97.7251. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.4 miles. 1 well has no surveyed location and is left out of it.

33.34347, -97.72741 · centre of 26 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
74.1%
20 of 27 wells
With a plug date
51.9%
14 of 27 wells
Median depth
5,951 ft
24 wells filed one
Completion to plug
25.8 years
median over 14 wells

What the state filed about each well

On the RRC proration schedule
2074.1%
A plug date is filed
1451.9%
BothOn the schedule and plugged. Neither fact cancels the other.
1451.9%
NeitherNo plug date, and not on the schedule.
725.9%

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, 24 of 27 wells. Median 5,951 ft, with the middle half between 5,950 and 6,000 ft; the shallowest is 2,240 ft and the deepest 6,175 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, 27 of 27 wells, Dec 1958 – Oct 2019. 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 1958 – Oct 2019
27 of 27 wells
Plug dates filed
Apr 1994 – May 2025
14 of 27 wells; 13 filed none

Last completion to plug: a median of 25.8 years across the 14 wells that filed both dates, with the middle half between 21.1 years and 28.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

27 wells

42-497315176035,950 ftOct 2019Yes
42-497315056016,000 ftAug 2015Yes
42-497324306065,950 ftJul 2006Yes
42-4973110850115,983 ftDec 2004May 2025Yes
42-497315045085,950 ftJul 2004Yes
42-497010355025,951 ftOct 1987Apr 1994Yes
42-497314715096,100 ftJan 1986Feb 2012Yes
42-49731506602 U5,950 ftJan 1986Feb 2009Yes
42-49732431608 U5,950 ftJan 1986
42-497315025035,950 ftFeb 1984Feb 2019Yes
42-4973255250126,100 ftJun 1983Dec 2008Yes
42-497324296076,150 ftOct 1982Feb 2009Yes
42-497811311015,952 ftApr 1981Mar 1997Yes
42-497305315065,979 ftOct 1980Oct 2020Yes
42-497315076045,950 ftMar 1980Apr 2003Yes
42-497010325055,953 ftFeb 1980Oct 1997Yes
42-497315193015,950 ftOct 1979
42-497315015015,950 ftOct 1979
42-497315035045,950 ftSep 1979
42-4973144150106,002 ftSep 1979Dec 2008Yes
42-497315096056,000 ftSep 1979Yes
42-497314901WS2,240 ftJul 1979Dec 2005Yes
42-497314502026,175 ftJul 1979
42-49731046701 UApr 1979
42-49731053507 UApr 1979
42-49782081506 UApr 1979Yes
42-49700998201 C5,900 ftDec 1958Mar 1997Yes

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 202603,134106.413.05$9,546
Apr 20263153,64598.932.87$41,623
Mar 20263493,75989.753.15$43,161
Feb 20263743,65663.503.75$37,460
Jan 202603,80659.138.00$30,440
Dec 202504,07156.664.41$17,967
Nov 20253434,01258.593.93$35,849
Oct 20251694,15459.383.30$23,764
Sep 20251723,98162.743.08$23,041
Aug 20251733,96663.933.01$23,016
Jul 20251553,89366.743.32$23,251
Jun 20253293,96966.483.13$34,290
May 20251733,92760.553.23$23,168
Apr 20251703,76962.363.54$23,955
Mar 20251723,89967.704.27$28,287
Feb 20253443,53270.884.34$39,715
Jan 20252193,69474.324.28$32,082
Dec 20241693,59168.993.12$22,868
Nov 20241702,13269.052.20$16,426
Oct 20245073,63471.372.28$44,475
Sep 20241712,06069.612.36$16,774
Aug 20241743,76175.632.06$20,921
Jul 20243466,18879.932.15$40,939
Jun 20241713,88378.082.63$23,579
May 20243413,98278.812.20$35,628
Apr 20243403,39984.451.66$34,353
Mar 20241833,87880.301.55$20,687
Feb 20244873,79276.091.78$43,819
Jan 20243324,07173.023.30$37,667
Dec 20233304,35471.262.61$34,883
Nov 20233524,33177.892.81$39,577
Oct 20233434,51985.443.09$43,257
Sep 20233484,33189.042.74$42,831
Aug 20233484,51080.522.67$40,076
Jul 20233543,87574.852.64$36,734
Jun 20233483,83868.962.26$32,666
May 20233503,86570.622.23$33,326
Apr 20231693,67978.122.24$21,435
Mar 20233433,58872.852.39$33,574
Feb 20233482,39375.112.47$32,039
Jan 202302,65576.533.39$8,994
Dec 20223312,77576.415.73$41,190
Nov 20221712,74285.005.65$30,017
Oct 20223314,24187.185.86$53,725
Sep 202204,30184.888.16$35,112
Aug 20223424,22594.529.13$70,888
Jul 20221182,549101.587.54$31,211
Jun 20222692,719115.097.98$52,649
May 20223202,749109.378.43$58,181
Apr 20221722,609104.226.84$35,765
Mar 20222842,877108.885.08$45,527
Feb 20223242,58891.054.86$42,075
Jan 20221662,61281.844.54$25,438
Dec 20212292,66371.323.90$26,716
Nov 20211512,25477.435.24$23,496
Oct 20211711,10579.795.71$19,958
Sep 20214361,22869.865.35$37,030
Aug 20215481,17866.024.22$41,151
Jul 20215711,15570.783.98$45,015
Jun 20213411,13069.493.38$27,516
May 202116733263.483.02$11,603
Apr 202129237860.362.76$18,668
Mar 20211001,50161.302.72$10,208
Feb 202101,18557.805.55$6,574
Jan 202133675850.412.81$19,068
Dec 20202111,29744.642.68$12,889
Nov 20203331,21738.772.71$16,204
Oct 20201551,58836.972.48$9,666
Sep 20203261,25537.091.99$14,590
Aug 20203421,23939.982.39$16,628
Jul 20203351,25438.371.83$15,143
Jun 202001,14834.901.69$1,940
May 202001,20416.921.81$2,185
Apr 2020098414.751.80$1,776
Mar 20201711,11130.341.86$7,250
Feb 202016898449.881.98$10,329
Jan 20208171,25857.252.09$49,408
Dec 20193311,30359.012.30$22,535
Nov 20193021,18155.302.75$19,949
Oct 20193441,12853.472.42$21,122
Sep 201917092355.052.66$11,811
Aug 201917373553.112.30$10,882
Jul 201917287756.272.46$11,836
Jun 20191761,00452.782.49$11,790
May 20195111,82958.482.74$34,895
Apr 20191782,20662.632.75$17,216
Mar 20191711,24656.803.06$13,528
Feb 201951797950.852.79$29,023
Jan 2019068546.033.23$2,211
Dec 201817464446.594.19$10,802
Nov 201817483852.934.24$12,761
Oct 201814899261.443.40$12,464
Sep 20181911,38059.543.11$15,661
Aug 201812266859.403.07$9,295
Jul 20181191,16165.142.93$11,156
Jun 201817098860.183.08$13,271
May 20183031,69565.382.90$24,727
Apr 201833579163.842.90$23,681
Mar 201834493861.222.79$23,674
Feb 201801,05761.782.77$2,924
Jan 20185381,26362.874.01$38,888
Dec 20171721,06057.272.92$12,947
Nov 201735740655.423.12$21,051
Oct 20175441,64049.292.98$31,707
Sep 20171721,83147.523.09$13,826
Aug 20173071,89445.373.00$19,619
Jul 20171711,89543.873.09$13,352
Jun 20173421,24542.493.09$18,375
May 20173421,66845.373.26$20,960
Apr 20173461,17347.933.21$20,351
Mar 20173391,79746.772.98$21,217
Feb 20171752,06350.452.95$14,920
Jan 20176821,26749.413.42$38,029
Dec 20163411,33148.763.72$21,582
Nov 20161701,24842.492.64$10,523
Oct 20161741,60646.193.09$13,000
Sep 201634498341.553.10$17,341
Aug 201617359441.442.92$8,906
Jul 20163401,20241.622.92$17,666
Jun 20163411,56745.352.69$19,673
May 20166881,70942.521.99$32,656
Apr 20163472,16436.561.99$16,995
Mar 20163492,53833.011.79$16,074
Feb 20166952,58526.472.06$23,731
Jan 20166873,09027.352.36$26,095
Dec 20155052,69832.362.00$21,742
Nov 20155292,45938.792.17$25,849
Oct 20153542,07143.552.43$20,442
Sep 20155202,25742.992.76$28,581
Aug 20156761,74640.162.87$32,164
Jul 20156902,05748.152.95$39,282
Jun 20153522,08956.152.88$25,787
May 20153471,82955.212.96$24,563
Apr 20156882,55349.822.71$41,186
Mar 20157013,09042.892.93$39,134
Feb 20155272,68644.662.98$31,530
Jan 20157023,91043.433.10$42,611
Dec 20145273,73954.693.59$42,250
Nov 20141,0512,39370.464.25$84,228
Oct 201402,78078.303.90$10,845
Sep 20146862,06886.164.05$67,472
Aug 20146762,17789.394.04$69,212
Jul 20148571,62396.564.18$89,535
Jun 20145191,43598.164.74$57,742
May 20147021,85794.734.73$75,278
Apr 20145211,63595.944.81$57,848
Mar 20145291,71595.895.06$59,398
Feb 20146971,52597.406.19$77,331
Jan 20147101,72690.404.86$72,574
Dec 20137051,70791.824.35$72,166
Nov 20133521,50488.853.74$36,898
Oct 20135281,52097.423.78$57,182
Sep 20135131,590104.113.72$59,320
Aug 20133471,651104.253.52$41,991
Jul 20131,0401,807102.523.72$113,339
Jun 20136961,39494.403.93$71,186
May 20135281,87294.834.15$57,837
Apr 20137041,74393.964.28$73,612
Mar 20133511,46093.623.91$38,573
Feb 20135261,57691.233.42$53,377
Jan 20137002,02291.603.42$71,035
Dec 20128782,02486.773.42$83,106
Nov 20123561,72786.953.62$37,215
Oct 20125301,90189.383.40$53,834
Sep 20128631,86094.672.92$87,128
Aug 20125191,76992.662.91$53,235
Jul 20126991,58585.133.02$64,294
Jun 20127031,76479.822.52$60,557
May 20121,0351,71691.612.49$99,086
Apr 20126821,298101.652.00$71,917
Mar 20127291,272105.052.22$79,408
Feb 20125811,204101.102.57$61,834
Jan 20127131,27198.092.73$73,413
Dec 20117061,17296.873.24$72,187
Nov 20115361,20795.723.31$55,303
Oct 201186668984.983.65$76,107
Sep 201188388583.623.99$77,364
Aug 201188493683.404.15$77,609
Jul 20111,0501,39694.144.52$105,153
Jun 20113501,06892.904.64$37,470
May 201187858898.134.40$88,748
Apr 2011349671105.964.33$39,888
Mar 201170384396.364.06$71,161
Feb 201153878285.644.18$49,343
Jan 201189793386.504.59$81,872
Dec 201088446185.734.35$77,790
Nov 201053356180.843.80$45,217
Oct 201087658278.103.51$70,458
Sep 201087589772.633.98$67,121
Aug 201087784373.684.42$68,343
Jul 20108781,20972.554.74$69,425
Jun 20108861,31470.364.91$68,791
May 20101,2381,43971.124.24$94,141
Apr 20101,2341,40381.694.12$106,590
Mar 20101,0571,41878.394.39$89,081
Feb 20101,4351,37273.585.44$113,054
Jan 201088198974.365.96$71,410
Dec 200953383171.445.48$42,635
Nov 200971486974.593.75$56,517
Oct 200936087072.544.11$29,690
Sep 200969786865.543.06$48,342
Aug 200951293367.423.22$37,522
Jul 200970095661.133.46$46,103
Jun 200972589466.163.90$51,448
May 200953789454.743.93$32,905
Apr 20095351,47146.773.59$30,299
Mar 200989090742.144.06$41,186
Feb 200989578132.814.63$32,983
Jan 200953889335.865.37$24,089
Dec 20081,24860537.105.98$49,917
Nov 20081,59665655.496.86$93,062
Oct 2008058375.246.92$4,036
Sep 2008535612101.767.88$59,262
Aug 2008892939114.228.48$109,850
Jul 2008702665131.0811.39$99,592
Jun 2008528455131.3313.03$75,272
May 2008541479123.1711.57$72,179
Apr 2008717407110.3110.45$83,347
Mar 2008723351101.909.66$77,066
Feb 200855142892.538.77$54,738
Jan 200836423890.388.21$34,851
Dec 200735020088.337.30$32,376
Nov 200753128191.677.29$50,726
Oct 200717639782.856.92$17,330
Sep 200769140275.846.24$54,916
Aug 200717448769.066.39$15,127
Jul 200735757470.906.39$28,978
Jun 200753553962.007.55$37,239
May 200733556158.747.85$24,080
Apr 200767747059.617.81$44,024
Mar 200735353356.927.30$23,985
Feb 200753746155.108.22$33,376
Jan 200754454450.306.73$31,023
Dec 200636353356.656.92$24,251
Nov 200671846454.207.62$42,450
Oct 200634852954.906.01$22,287
Sep 200653142360.085.04$34,033
Aug 200634345368.717.34$26,893
Jul 20063291,51569.376.34$32,432
Jun 20063641,87066.286.38$36,064
May 20065902,84866.016.42$57,244
Apr 20067021,54964.397.36$56,603
Mar 20065273856.707.08$30,150
Feb 20061,2488657.597.75$72,539
Jan 200685510360.598.93$52,725
Dec 20051746654.9413.42$10,445
Nov 2005014654.6910.59$1,546
Oct 20051662558.3413.80$10,029
Sep 20056995661.4512.08$43,630
Aug 20053246561.519.80$20,566
Jul 20055267955.697.84$29,913
Jun 20055212952.337.38$27,478
May 200550311845.226.65$23,531
Apr 200586511249.207.36$43,382
Mar 200551927950.377.15$28,138
Feb 200552823545.226.31$25,359
Jan 200517422043.166.32$8,901
Dec 200471235739.866.75$30,790
Nov 200452141145.286.33$26,193
Oct 200477146349.706.52$41,335
Sep 20041,57073043.245.28$71,744
Aug 200435220742.375.55$16,063
Jul 2004021738.286.08$1,320
Jun 200471827736.106.43$27,702
May 200452934837.486.49$22,087
Apr 200481835534.475.86$30,276
Mar 200434347334.365.53$14,401
Feb 200417325232.455.51$7,002
Jan 200469240132.036.30$24,691
Dec 200369620230.266.30$22,334
Nov 200335729328.804.60$11,628
Oct 200317629528.174.76$6,362
Sep 20031,04029826.314.75$28,778
Aug 2003034229.765.13$1,754
Jul 200350343629.415.17$17,048
Jun 200370644628.565.98$22,832
May 200334744726.595.97$11,897
Apr 20031,08436726.675.41$30,895
Mar 2003051631.146.10$3,146
Feb 200335736833.487.93$14,869
Jan 200329932730.315.58$10,888
Dec 200234920826.914.85$10,401
Nov 200253761924.664.14$15,803
Oct 200269074926.464.23$21,425
Sep 200234064227.443.64$11,663
Aug 200252379125.963.16$16,080
Jul 200253485424.583.06$15,740
Jun 200287895523.733.34$24,023
May 200233997524.663.58$11,854
Apr 200285680323.653.51$23,065
Mar 200289086022.003.10$22,248
Feb 2002051618.222.38$1,226
Jan 200233961717.172.38$7,286
Dec 200181369516.932.36$15,407
Nov 200117874918.072.41$5,018
Oct 200169757819.782.53$15,248
Sep 200133462924.262.25$9,519
Aug 200151970624.873.05$15,063
Jul 200164777623.933.20$17,964
Jun 200149387824.563.82$15,466
May 20011,05437125.524.31$28,496
Apr 200135525624.685.34$10,127
Mar 200171229124.545.38$19,037
Feb 200134425227.755.77$10,999
Jan 200159625827.478.40$18,539
Dec 200052826426.889.12$16,601
Nov 200069727132.215.66$23,984
Oct 200069328131.235.15$23,088
Sep 200034431031.875.19$12,571
Aug 20001,03085229.644.54$34,398
Jul 200035242828.534.09$11,793
Jun 200063468729.304.40$21,597
May 20001,03899427.263.68$31,954
Apr 200086479724.513.12$23,660
Mar 200069889428.422.86$22,394
Feb 200069958527.622.73$20,901
Jan 200071074725.272.48$19,795
Dec 19991,03476424.282.42$26,957
Nov 199970073523.192.43$18,022
Oct 199970864920.982.80$16,673
Sep 199987579421.752.62$21,111
Aug 19991,21391919.262.88$26,005
Jul 199983491017.892.37$17,079
Jun 1999050815.942.36$1,200
May 199934843915.792.32$6,514
Apr 199968767815.102.21$11,871
Mar 199970661612.471.84$9,936
Feb 19997116489.981.82$8,274
Jan 199969977410.381.90$8,726
Dec 19981,0576989.201.77$10,962
Nov 199870366210.892.19$9,103
Oct 199870182712.421.97$10,335
Sep 19986821,05612.592.08$10,786
Aug 19981,1901,14911.301.91$15,639
Jul 199869873411.742.24$9,837
Jun 199869097511.242.24$9,937
May 19981,0421,11512.622.21$15,610
Apr 19981,05483913.042.51$15,846
Mar 19981,06695912.802.31$15,860
Feb 199871888613.952.30$12,053
Jan 19988261,00514.702.15$14,308
Dec 19971,1331,06616.322.41$21,061
Nov 19971,1801,79318.193.09$27,001
Oct 19971,2051,82719.253.15$28,951
Sep 19976851,30517.742.95$16,008
Aug 19971,2261,09917.862.55$24,704
Jul 19971,0231,38517.582.25$21,096
Jun 19976751,12517.242.26$14,176
May 19971,0431,64518.972.31$23,583
Apr 19971,5411,75117.882.08$31,200
Mar 19971,0341,57618.951.94$22,650
Feb 199753493520.492.21$13,004
Jan 19971,0601,21123.483.54$29,175
Dec 19961,0661,20323.32$24,859
Nov 19961,7311,73921.97$38,030
Oct 19968741,56623.31$20,373
Sep 19967011,71222.22$15,576
Aug 19961,0591,84920.26$21,455
Jul 19961,4131,73619.55$27,624
Jun 19968601,64618.73$16,108
May 19961,3961,92319.43$27,124
Apr 19961,4001,56521.51$30,114
Mar 19961,0521,60719.38$20,388
Feb 19961,0661,32616.98$18,101
Jan 19961,0721,63617.07$18,299
Dec 19951,4321,85417.19$24,616
Nov 19951,7662,06816.00$28,256
Oct 19951,3931,82715.43$21,494
Sep 19951,0561,52416.18$17,086
Aug 19951,0361,24715.92$16,493
Jul 19951,3871,56815.24$21,138
Jun 19958771,73516.41$14,392
May 19951,7461,76317.56$30,660
Apr 19951,0541,85517.73$18,687
Mar 19951,9461,83416.44$31,992
Feb 19951,0331,95316.58$17,127
Jan 19951,3971,53415.92$22,240
Dec 19941,0531,41315.03$15,827
Nov 19941,4461,50915.90$22,991
Oct 19941,2171,41015.58$18,961
Sep 19941,7471,40415.29$26,712
Aug 19941,4011,34916.13$22,598
Jul 19941,7221,78717.56$30,238
Jun 19941,3941,76017.09$23,823
May 19941,5371,46815.88$24,408
Apr 19941,3601,50914.14$19,230
Mar 19941,7171,59912.46$21,394
Feb 19941,0571,02712.50$13,213
Jan 19941,7941,55612.66$22,712
Dec 19931,7681,50712.33$21,799
Nov 19931,5921,59514.49$23,068
Oct 19932,0891,66815.85$33,111
Sep 19931,7751,86015.03$26,678
Aug 19931,7292,33015.66$27,076
Jul 19931,7332,26415.46$26,792
Jun 19931,8692,48316.79$31,381
May 19932,0092,31117.68$35,519
Apr 19932,0232,33318.05$36,515
Mar 19931,9102,61618.14$34,647
Feb 19931,8461,96417.90$33,043
Jan 19931,5372,26216.93$26,021

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 2026 — as filed, then multipliedworked
Oil                    0 bbl  × $106.41 =         $0
Casinghead gas     3,134 Mcf  × $  3.05 =     $9,546

────────────────────────────────────────────────────
Month total                                   $9,546

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. 09/O/19402 is the state's own key, not one this site invented.