CHALK, OWEN

Operated by CITATION OIL & GAS CORP. (P-5 154235) in the HOWARD-GLASSCOCK (WOLFCAMP 7400) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 21650District 08Field 42971664Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$1.3 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 38 leases and 78 wells, and the rule below applies to all of them.

Discovered
1970-09-01
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 80 acres. The field rule took effect on 1986-06-01.

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: OIL RULES ADDED TO GAS FIELD

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
NGPA2none

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
OilDisposition34,823 bbl$1,092,914
Casinghead gasProduction156,344 Mcf$205,135
Total$1,298,049

106,364 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 32.1260, -101.2626. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

32.12609, -101.26250 · 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
83.3%
5 of 6 wells
With a plug date
16.7%
1 of 6 wells
Median depth
7,852 ft
6 wells filed one
Completion to plug
6.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
583.3%
A plug date is filed
116.7%
BothOn the schedule and plugged. Neither fact cancels the other.
116.7%
NeitherNo plug date, and not on the schedule.
116.7%

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 6,000 and 9,300 ft, median 7,852 ft, over the 6 wells that filed a depth.

Completions filed
Jul 1989 – Apr 2019
6 of 6 wells
Plug dates filed
May 1996
1 of 6 wells; 5 filed none

Last completion to plug: a median of 6.8 years across the 1 well that filed both dates, with the middle half between 6.8 years and 6.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

6 wells

42-22734525577,703 ftApr 2019Yes
42-2273453058WS6,000 ftJan 2014Yes
42-22733816428,000 ftAug 2012Yes
42-22730182289,300 ftMay 2012Yes
42-22734524567,700 ftMay 1990
42-22733906438,000 ftJul 1989May 1996Yes

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 202323070.622.23$1,624
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 2022020104.226.84$137
Mar 202207108.885.08$36
Feb 202201491.054.86$68
Jan 202201781.844.54$77
Dec 202102871.323.90$109
Nov 202102877.435.24$147
Oct 202103679.795.71$206
Sep 202104869.865.35$257
Aug 202102466.024.22$101
Jul 20210270.783.98$8
Jun 20210269.493.38$7
May 20210163.483.02$3
Apr 20210360.362.76$8
Mar 20210261.302.72$5
Feb 20210257.805.55$11
Jan 20210450.412.81$11
Dec 202001144.642.68$29
Nov 20200038.772.71$0
Oct 202002236.972.48$55
Sep 202004537.091.99$90
Aug 20200439.982.39$10
Jul 20200238.371.83$4
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 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 20141097.406.19$97
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20136088.853.74$533
Oct 20130097.423.78$0
Sep 201340104.113.72$416
Aug 201370104.253.52$730
Jul 201300102.523.72$0
Jun 201370094.403.93$6,608
May 2013068194.834.15$2,826
Apr 20132727993.964.28$3,732
Mar 20132935993.623.91$4,120
Feb 2013048491.233.42$1,655
Jan 20132723291.603.42$3,267
Dec 20125310386.773.42$4,951
Nov 2012020986.953.62$758
Oct 20122554989.383.40$4,101
Sep 20122412194.672.92$2,625
Aug 2012492592.662.91$4,613
Jul 2012294385.133.02$2,599
Jun 2012904279.822.52$7,290
May 201211228891.612.49$10,977
Apr 2012103199101.652.00$10,867
Mar 201255134105.052.22$6,076
Feb 20120169101.102.57$434
Jan 2012564598.092.73$5,616
Dec 201102096.873.24$65
Nov 2011532595.723.31$5,156
Oct 201102984.983.65$106
Sep 201106583.623.99$259
Aug 201104183.404.15$170
Jul 201109094.144.52$407
Jun 2011010392.904.64$478
May 2011012098.134.40$529
Apr 20110265105.964.33$1,148
Mar 2011063096.364.06$2,556
Feb 2011022385.644.18$932
Jan 2011521,00586.504.59$9,110
Dec 201001,09585.734.35$4,761
Nov 2010461,28780.843.80$8,603
Oct 20106233878.103.51$6,028
Sep 2010026972.633.98$1,070
Aug 2010501973.684.42$3,768
Jul 20109210172.554.74$7,153
Jun 201014514770.364.91$10,924
May 20107511171.124.24$5,804
Apr 20107813881.694.12$6,941
Mar 20106622778.394.39$6,170
Feb 201017820073.585.44$14,186
Jan 201010059074.365.96$10,955
Dec 200917563171.445.48$15,962
Nov 200916756274.593.75$14,565
Oct 200910373772.544.11$10,501
Sep 200921668665.543.06$16,259
Aug 20091589867.423.22$10,968
Jul 2009253561.133.46$1,650
Jun 200901466.163.90$55
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20092035.865.37$72
Dec 2008245937.105.98$9,143
Nov 200813042955.496.86$10,157
Oct 200812415575.246.92$10,403
Sep 2008181116101.767.88$19,332
Aug 2008119168114.228.48$15,017
Jul 2008114471131.0811.39$20,308
Jun 20088543131.3313.03$11,723
May 200818121123.1711.57$22,537
Apr 200811625110.3110.45$13,057
Mar 200811770101.909.66$12,599
Feb 20081366292.538.77$13,128
Jan 200808090.388.21$656
Dec 200724988.337.30$534
Nov 20071566691.677.29$14,782
Oct 20072017782.856.92$17,186
Sep 20072018175.846.24$15,750
Aug 20072007869.066.39$14,310
Jul 20071286770.906.39$9,503
Jun 20071867162.007.55$12,068
May 20072108058.747.85$12,963
Apr 200721910459.617.81$13,866
Mar 20073216456.927.30$18,739
Feb 2007474855.108.22$2,984
Jan 200726950.306.73$565
Dec 20061988656.656.92$11,812
Nov 20062369754.207.62$13,530
Oct 200622713854.906.01$13,292
Sep 200638613860.085.04$23,886
Aug 200638513868.717.34$27,466
Jul 2006011469.376.34$723
Jun 20069411166.286.38$6,939
May 20064410466.016.42$3,573
Apr 2006011064.397.36$810
Mar 20069411856.707.08$6,166
Feb 20068012157.597.75$5,545
Jan 2006013260.598.93$1,179
Dec 20059714054.9413.42$7,207
Nov 20054517654.6910.59$4,325
Oct 20054116858.3413.80$4,710
Sep 20059410061.4512.08$6,984
Aug 20050061.519.80$0
Jul 20059420755.697.84$6,858
Jun 2005014652.337.38$1,078
May 2005022545.226.65$1,497
Apr 2005548949.207.36$3,312
Mar 2005017750.377.15$1,266
Feb 2005017145.226.31$1,079
Jan 2005021743.166.32$1,372
Dec 200411024739.866.75$6,052
Nov 2004024545.286.33$1,551
Oct 2004023749.706.52$1,544
Sep 20049526243.245.28$5,492
Aug 2004021142.375.55$1,171
Jul 200410421438.286.08$5,283
Jun 2004018136.106.43$1,164
May 200413421037.486.49$6,386
Apr 2004015634.475.86$914
Mar 2004024234.365.53$1,338
Feb 20046628632.455.51$3,717
Jan 2004020832.036.30$1,310
Dec 2003016530.266.30$1,040
Nov 2003019228.804.60$882
Oct 20037724928.174.76$3,354
Sep 20038028226.314.75$3,444
Aug 20038427229.765.13$3,895
Jul 2003020729.415.17$1,070
Jun 20037116028.565.98$2,985
May 20036417826.595.97$2,765
Apr 20036617326.675.41$2,696
Mar 20036419731.146.10$3,194
Feb 200324621033.487.93$9,901
Jan 2003048330.315.58$2,696
Dec 20021071,17226.914.85$8,568
Nov 2002035424.664.14$1,464
Oct 20028754926.464.23$4,624
Sep 20027448627.443.64$3,797
Aug 200210152425.963.16$4,280
Jul 20028353024.583.06$3,663
Jun 20028853023.733.34$3,858
May 200210948924.663.58$4,441
Apr 2002917823.653.51$2,426
Mar 20021538222.003.10$3,620
Feb 200207718.222.38$183
Jan 20021628717.172.38$2,988
Dec 20011978716.932.36$3,541
Nov 200108118.072.41$195
Oct 20011978819.782.53$4,119
Sep 20011779424.262.25$4,506
Aug 200107824.873.05$238
Jul 20011255323.933.20$3,161
Jun 200108624.563.82$329
May 20011635425.524.31$4,392
Apr 20011838824.685.34$4,986
Mar 200109424.545.38$505
Feb 200118611027.755.77$5,796
Jan 20011719027.478.40$5,453
Dec 20001608626.889.12$5,085
Nov 2000012932.215.66$730
Oct 2000014131.235.15$726
Sep 200012814031.875.19$4,805
Aug 200013315329.644.54$4,637
Jul 20001329928.534.09$4,171
Jun 2000014129.304.40$620
May 200011111527.263.68$3,449
Apr 200018616924.513.12$5,085
Mar 200012540928.422.86$4,722
Feb 2000028727.622.73$783
Jan 200013517825.272.48$3,853
Dec 199915026824.282.42$4,292
Nov 19991528023.192.43$1,029
Oct 199917131020.982.80$4,457
Sep 19992133921.752.62$1,345
Aug 199918626119.262.88$4,333
Jul 199915832217.892.37$3,591
Jun 19991628015.942.36$916
May 199917225215.792.32$3,301
Apr 199915849015.102.21$3,468
Mar 199918043812.471.84$3,050
Feb 19991714079.981.82$2,446
Jan 199918671910.381.90$3,297
Dec 19981483979.201.77$2,066
Nov 199814040210.892.19$2,403
Oct 199813747512.421.97$2,637
Sep 199813154812.592.08$2,791
Aug 199825358211.301.91$3,969
Jul 199812749211.742.24$2,592
Jun 199818547911.242.24$3,151
May 199816336012.622.21$2,851
Apr 199814442913.042.51$2,953
Mar 199830341212.802.31$4,830
Feb 199820751513.952.30$4,072
Jan 199811457214.702.15$2,908
Dec 199713840016.322.41$3,217
Nov 199715037918.193.09$3,899
Oct 199713350219.253.15$4,141
Sep 199725358217.742.95$6,208
Aug 199728487917.862.55$7,318
Jul 199728290017.582.25$6,980
Jun 199715493217.242.26$4,759
May 199726475018.972.31$6,739
Apr 199711029617.882.08$2,583
Mar 199716429618.951.94$3,682
Feb 19979730220.492.21$2,654
Jan 19975434723.483.54$2,496
Dec 199616838523.32$3,918
Nov 199611261121.97$2,461
Oct 199610879323.31$2,517
Sep 199611985922.22$2,644
Aug 199613888520.26$2,796
Jul 199614586419.55$2,835
Jun 1996081618.73$0
May 199615391019.43$2,973
Apr 199613288721.51$2,839
Mar 199615957919.38$3,081
Feb 199601,02716.98$0
Jan 199613185717.07$2,236
Dec 19952401,47717.19$4,126
Nov 19953281,05116.00$5,248
Oct 19954841,19715.43$7,468
Sep 199501,25216.18$0
Aug 19951475,91715.92$2,340
Jul 19953075,55815.24$4,679
Jun 19954355,47816.41$7,138
May 19954525,89117.56$7,937
Apr 19958625,61717.73$15,283
Mar 19951,3252,15816.44$21,783
Feb 199501,13516.58$0
Jan 199501,60815.92$0
Dec 19944671,59915.03$7,019
Nov 19944701,61515.90$7,473
Oct 199401,78915.58$0
Sep 19944611,79215.29$7,049
Aug 19944451,82916.13$7,178
Jul 199401,98917.56$0
Jun 19943812,01917.09$6,511
May 199402,02515.88$0
Apr 19941752,01014.14$2,475
Mar 19943771,91512.46$4,697
Feb 19942961,88912.50$3,700
Jan 19943592,21012.66$4,545
Dec 19933732,32412.33$4,599
Nov 19933892,28714.49$5,637
Oct 19933922,69915.85$6,213
Sep 19934072,74115.03$6,117
Aug 19933693,18015.66$5,779
Jul 19934503,40515.46$6,957
Jun 19937013,50216.79$11,770
May 19937053,26317.68$12,464
Apr 19937203,12218.05$12,996
Mar 19937503,27318.14$13,605
Feb 19936892,89517.90$12,333
Jan 19937353,18016.93$12,444

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                   23 bbl  × $ 70.62 =     $1,624
Casinghead gas         0 Mcf  × $  2.23 =         $0

────────────────────────────────────────────────────
Month total                                   $1,624

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/21650 is the state's own key, not one this site invented.