CHALK, G. O.

Operated by CIMAREX ENERGY CO. OF COLORADO (P-5 153429) in the HOWARD-GLASSCOCK (GLORIETA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 19095District 08Field 42971332Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$6.5 M
Jan 1993 – Jul 2013
Value, last 12 filed months
$0
at the published price for each month
Months reported
247
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 131 leases and 850 wells, and the rule below applies to all of them.

Discovered
1925-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres.

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: 11/22/11.

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
OilDisposition185,493 bbl$6,430,971
Casinghead gasProduction7,850 Mcf$48,083
Total$6,479,054

22 Mcf of this lease's gas, across 22 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 (14)

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 32.1272, -101.2466. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

32.12748, -101.24603 · 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%
14 of 14 wells
With a plug date
50.0%
7 of 14 wells
Median depth
3,028 ft
11 wells filed one
Completion to plug
31.8 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
14100.0%
A plug date is filed
750.0%
BothOn the schedule and plugged. Neither fact cancels the other.
750.0%
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

Total depth in feet, 11 of 14 wells. Median 3,028 ft, with the middle half between 2,984 and 3,515 ft; the shallowest is 2,921 ft and the deepest 4,241 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, 8 of 14 wells, May 1959 – Jun 2018. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
May 1959 – Jun 2018
8 of 14 wells; 6 filed none
Plug dates filed
Aug 1968 – Jul 2018
7 of 14 wells; 7 filed none

Last completion to plug: a median of 31.8 years across the 4 wells that filed both dates, with the middle half between 23.8 years and 42.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

14 wells

42-227038566Yes
42-227038817Yes
42-227038828Yes
42-2270388392,999 ftFeb 2014Yes
42-2270439012,992 ftJul 2018Yes
42-227202132W2,921 ftAug 1968Yes
42-22730136184,241 ftJun 2018Yes
42-22730314233,805 ftSep 2013Yes
42-22730338253,816 ftAug 2012Yes
42-2270385722,921 ftMar 1986Jun 2011Yes
42-2270188053,225 ftMar 1972Jul 1991Yes
42-227300601W2,975 ftAug 1969Yes
42-227202142WT3,086 ftOct 1968Feb 2007Yes
42-22703885113,028 ftMay 1959Nov 2013Yes

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 (247)

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

247 months

Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 2011455095.723.31$43,553
Oct 201152910284.983.65$45,327
Sep 201144815083.623.99$38,060
Aug 20114041183.404.15$33,739
Jul 20114291594.144.52$40,454
Jun 2011358692.904.64$33,286
May 2011555098.134.40$54,462
Apr 20115140105.964.33$54,463
Mar 2011692096.364.06$66,681
Feb 2011771085.644.18$66,028
Jan 2011655886.504.59$56,694
Dec 20107481585.734.35$64,191
Nov 20106785480.843.80$55,014
Oct 20107133878.103.51$55,819
Sep 20103845272.633.98$28,097
Aug 20106509573.684.42$48,312
Jul 20107756572.554.74$56,534
Jun 20106617670.364.91$46,881
May 20107587171.124.24$54,210
Apr 20106966881.694.12$57,137
Mar 20103095278.394.39$24,451
Feb 20105945273.585.44$43,990
Jan 20106076674.365.96$45,530
Dec 20097794071.445.48$55,871
Nov 20095741774.593.75$42,878
Oct 20096671872.544.11$48,458
Sep 20095152665.543.06$33,833
Aug 20094903067.423.22$33,132
Jul 2009557061.133.46$34,049
Jun 20095443666.163.90$36,131
May 20095534054.743.93$30,428
Apr 20096825346.773.59$32,087
Mar 20098606242.144.06$36,492
Feb 20097355032.814.63$24,347
Jan 20096066835.865.37$22,096
Dec 20086936537.105.98$26,099
Nov 20087326855.496.86$41,085
Oct 20086096675.246.92$46,278
Sep 200871040101.767.88$72,565
Aug 200867562114.228.48$77,624
Jul 200865360131.0811.39$86,279
Jun 200848858131.3313.03$64,845
May 200863073123.1711.57$78,442
Apr 200854885110.3110.45$61,339
Mar 200846988101.909.66$48,642
Feb 20084699392.538.77$44,212
Jan 20083968690.388.21$36,496
Dec 200769210788.337.30$61,906
Nov 200763512491.677.29$59,115
Oct 200757011582.856.92$48,021
Sep 200764611275.846.24$49,692
Aug 200762310369.066.39$43,682
Jul 200758010070.906.39$41,761
Jun 200753711662.007.55$34,170
May 200755511058.747.85$33,464
Apr 200754711659.617.81$33,512
Mar 200766811356.927.30$38,848
Feb 200778510255.108.22$44,092
Jan 200763811350.306.73$32,852
Dec 200672613156.656.92$42,034
Nov 200670113254.207.62$39,000
Oct 200688115554.906.01$49,299
Sep 200674611360.085.04$45,389
Aug 20069458468.717.34$65,548
Jul 20067324869.376.34$51,083
Jun 20066373766.286.38$42,457
May 20065084466.016.42$33,816
Apr 20065434864.397.36$35,317
Mar 20068544556.707.08$48,741
Feb 20065183657.597.75$30,111
Jan 20066174060.598.93$37,741
Dec 20057724554.9413.42$43,017
Nov 20056483854.6910.59$35,841
Oct 20055684258.3413.80$33,717
Sep 20056013261.4512.08$37,318
Aug 20058004761.519.80$49,668
Jul 20057043655.697.84$39,488
Jun 20056734452.337.38$35,543
May 20056924845.226.65$31,612
Apr 20055964549.207.36$29,654
Mar 200582510250.377.15$42,285
Feb 20056395245.226.31$29,224
Jan 20056293143.166.32$27,344
Dec 20046714039.866.75$27,016
Nov 20047614345.286.33$34,730
Oct 20048274549.706.52$41,395
Sep 20045964143.245.28$25,988
Aug 20048344742.375.55$35,597
Jul 20047303838.286.08$28,176
Jun 20047534036.106.43$27,441
May 20048554237.486.49$32,318
Apr 20046536234.475.86$22,872
Mar 20048906734.365.53$30,951
Feb 20047265932.455.51$23,884
Jan 20048515732.036.30$27,617
Dec 20039805630.266.30$30,008
Nov 20037455028.804.60$21,686
Oct 20037427828.174.76$21,273
Sep 20036789426.314.75$18,285
Aug 200373810429.765.13$22,496
Jul 20035809829.415.17$17,565
Jun 20035466428.565.98$15,977
May 20037158026.595.97$19,490
Apr 200364110226.675.41$17,647
Mar 20038039131.146.10$25,560
Feb 20034676733.487.93$16,166
Jan 20035335430.315.58$16,457
Dec 2002594026.914.85$15,985
Nov 20027334924.664.14$18,278
Oct 20027114226.464.23$18,991
Sep 20027037627.443.64$19,567
Aug 20028156825.963.16$21,373
Jul 20028725124.583.06$21,590
Jun 20028186623.733.34$19,631
May 20021,0032024.663.58$24,806
Apr 20021,1791123.653.51$27,922
Mar 20021,205422.003.10$26,522
Feb 2002492518.222.38$8,976
Jan 20027278617.172.38$12,687
Dec 20014402116.932.36$7,499
Nov 20014462218.072.41$8,112
Oct 20014363219.782.53$8,705
Sep 20014012724.262.25$9,789
Aug 20016591824.873.05$16,444
Jul 20016653323.933.20$16,019
Jun 20017843924.563.82$19,404
May 20016703025.524.31$17,228
Apr 20015693924.685.34$14,251
Mar 20011,0923924.545.38$27,007
Feb 20011,1724227.755.77$32,765
Jan 20011,1311827.478.40$31,220
Dec 20009932626.889.12$26,929
Nov 20001,1352732.215.66$36,711
Oct 20001,0444031.235.15$32,810
Sep 20001,0304131.875.19$33,039
Aug 20007454029.644.54$22,263
Jul 20008873928.534.09$25,466
Jun 20006383829.304.40$18,861
May 2000638027.263.68$17,392
Apr 20006814724.513.12$16,838
Mar 20006424628.422.86$18,377
Feb 20005694127.622.73$15,828
Jan 2000686025.272.48$17,335
Dec 1999571024.282.42$13,864
Nov 1999642023.192.43$14,888
Oct 1999569020.982.80$11,938
Sep 1999638021.752.62$13,877
Aug 1999661019.262.88$12,731
Jul 1999560017.892.37$10,018
Jun 1999658015.942.36$10,489
May 1999756015.792.32$11,937
Apr 1999665015.102.21$10,042
Mar 1999678012.471.84$8,455
Feb 199968709.981.82$6,856
Jan 1999692010.381.90$7,183
Dec 199867309.201.77$6,192
Nov 1998630010.892.19$6,861
Oct 1998779012.421.97$9,675
Sep 1998678012.592.08$8,536
Aug 1998658011.301.91$7,435
Jul 1998756011.742.24$8,875
Jun 1998613011.242.24$6,890
May 1998609012.622.21$7,686
Apr 1998552013.042.51$7,198
Mar 1998617012.802.31$7,898
Feb 1998601013.952.30$8,384
Jan 1998696014.702.15$10,231
Dec 1997627016.322.41$10,233
Nov 1997728018.193.09$13,242
Oct 1997600019.253.15$11,550
Sep 1997681017.742.95$12,081
Aug 1997670017.862.55$11,966
Jul 1997695017.582.25$12,218
Jun 1997822017.242.26$14,171
May 1997618018.972.31$11,723
Apr 1997719017.882.08$12,856
Mar 1997713018.951.94$13,511
Feb 1997675020.492.21$13,831
Jan 1997697023.483.54$16,366
Dec 1996617023.32$14,388
Nov 1996730021.97$16,038
Oct 1996619023.31$14,429
Sep 1996729022.22$16,198
Aug 1996656020.26$13,291
Jul 19961,329019.55$25,982
Jun 19961,320018.73$24,724
May 19961,433019.43$27,843
Apr 19961,101021.51$23,683
Mar 19961,114019.38$21,589
Feb 19961,326016.98$22,515
Jan 19961,374017.07$23,454
Dec 19951,353017.19$23,258
Nov 19951,327016.00$21,232
Oct 19951,320015.43$20,368
Sep 19951,329016.18$21,503
Aug 19951,308015.92$20,823
Jul 19951,141015.24$17,389
Jun 19951,319016.41$21,645
May 19951,332017.56$23,390
Apr 19951,305017.73$23,138
Mar 19951,312016.44$21,569
Feb 19951,164016.58$19,299
Jan 19951,353015.92$21,540
Dec 19941,375015.03$20,666
Nov 19941,293015.90$20,559
Oct 19941,496115.58$23,308
Sep 19941,189115.29$18,180
Aug 19941,516116.13$24,453
Jul 19941,345117.56$23,618
Jun 19941,361117.09$23,259
May 19941,328115.88$21,089
Apr 19941,522114.14$21,521
Mar 19941,525112.46$19,002
Feb 19941,362112.50$17,025
Jan 19941,509112.66$19,104
Dec 19931,647112.33$20,308
Nov 19931,502114.49$21,764
Oct 19931,815115.85$28,768
Sep 19931,516115.03$22,785
Aug 19931,648115.66$25,808
Jul 19931,585115.46$24,504
Jun 19931,834116.79$30,793
May 19931,526117.68$26,980
Apr 19931,688118.05$30,468
Mar 19931,560118.14$28,298
Feb 19931,501117.90$26,868
Jan 19931,687116.93$28,561

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.

Nov 2011 — as filed, then multipliedworked
Oil                  455 bbl  × $ 95.72 =    $43,553
Casinghead gas         0 Mcf  × $  3.31 =         $0

────────────────────────────────────────────────────
Month total                                  $43,553

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/19095 is the state's own key, not one this site invented.