CHALK, OTIS

Operated by APACHE CORPORATION (P-5 27200) in the HOWARD GLASSCOCK field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2737District 08Field 42971001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$1.7 M
Jan 1993 – Oct 2015
Value, last 12 filed months
$0
at the published price for each month
Months reported
274
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 285 leases and 3,948 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
400 ft
minimum
From a lease line
200 ft
minimum

A drilling unit in this field needs at least 5 acres. The field rule took effect on 2008-07-28.

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: HOWARD GLASSCOCK (CONSOLIDATED), EFFECTIVE 11/22/11.

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
NGPA1none

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
OilDisposition42,726 bbl$1,645,602
Casinghead gasProduction11,622 Mcf$24,935
Total$1,670,537

5,709 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 (9)

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 32.0957, -101.3440. A lease has no coordinate of its own — that point is the mean of its wells, and they span 28.8 miles, so treat it as the lease's centre and not as its location.

32.05891, -101.52922 · 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%
9 of 9 wells
With a plug date
44.4%
4 of 9 wells
Median depth
3,301 ft
8 wells filed one
Completion to plug
36.5 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
9100.0%
A plug date is filed
444.4%
BothOn the schedule and plugged. Neither fact cancels the other.
444.4%
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, 8 of 9 wells. Median 3,301 ft, with the middle half between 3,026 and 3,843 ft; the shallowest is 2,558 ft and the deepest 10,800 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 9 wells, Feb 1960 – Mar 2010. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Feb 1960 – Mar 2010
8 of 9 wells; 1 filed none
Plug dates filed
May 1983 – Jul 2009
4 of 9 wells; 5 filed none

Last completion to plug: a median of 36.5 years across the 3 wells that filed both dates, with the middle half between 28.2 years and 39.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

9 wells

42-2270422442,602 ftMay 1983Yes
42-227356791419R3,402 ftMar 2010Yes
42-22733267133,800 ftJan 2002Yes
42-17333042141910,800 ftFeb 2001Yes
42-2273035823,200 ftAug 1995Yes
42-22730373143,970 ftAug 1972May 1992Yes
42-22710879112,558 ftFeb 1968Aug 2004Yes
42-2270422353,167 ftFeb 1967Jul 2009Yes
42-2270410510Feb 1960Yes

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 (274)

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

274 months

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 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 2011328095.723.31$31,396
Oct 201133219584.983.65$28,925
Sep 201131920083.623.99$27,472
Aug 2011333083.404.15$27,772
Jul 2011294594.144.52$27,700
Jun 2011348092.904.64$32,329
May 2011375498.134.40$36,816
Apr 201134868105.964.33$37,169
Mar 20112483496.364.06$24,035
Feb 201123218685.644.18$20,646
Jan 201144422986.504.59$39,457
Dec 201037523685.734.35$33,175
Nov 201036718280.843.80$30,359
Oct 201045512178.103.51$35,960
Sep 201053222472.633.98$39,531
Aug 201051422773.684.42$38,875
Jul 201053725972.554.74$40,186
Jun 201064230270.364.91$46,654
May 201076129771.124.24$55,380
Apr 201062928981.694.12$52,574
Mar 201053716478.394.39$42,815
Feb 201083115973.585.44$62,010
Jan 201057811074.365.96$43,636
Dec 200935015971.445.48$25,876
Nov 2009315074.593.75$23,496
Oct 200935216472.544.11$26,208
Sep 200935110065.543.06$23,311
Aug 200940214567.423.22$27,570
Jul 20094251761.133.46$26,039
Jun 2009510066.163.90$33,742
May 2009657054.743.93$35,964
Apr 2009865046.773.59$40,456
Mar 20099841,15442.144.06$46,150
Feb 200939938432.814.63$14,870
Jan 20091164035.865.37$4,375
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 200725058.747.85$1,469
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 20029017.172.38$155
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 200178024.563.82$1,916
May 2001266025.524.31$6,788
Apr 2001215024.685.34$5,306
Mar 2001138024.545.38$3,387
Feb 2001137027.755.77$3,802
Jan 2001162027.478.40$4,450
Dec 2000111026.889.12$2,984
Nov 2000138032.215.66$4,445
Oct 2000151031.235.15$4,716
Sep 2000150031.875.19$4,781
Aug 2000154029.644.54$4,565
Jul 2000181028.534.09$5,164
Jun 2000168029.304.40$4,922
May 2000217027.263.68$5,915
Apr 2000214024.513.12$5,245
Mar 2000121028.422.86$3,439
Feb 2000131027.622.73$3,618
Jan 200085025.272.48$2,148
Dec 199993024.282.42$2,258
Nov 1999128023.192.43$2,968
Oct 1999111020.982.80$2,329
Sep 1999108021.752.62$2,349
Aug 1999153019.262.88$2,947
Jul 1999146017.892.37$2,612
Jun 199970015.942.36$1,116
May 199997015.792.32$1,532
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 1999107010.381.90$1,111
Dec 199813409.201.77$1,233
Nov 19980010.892.19$0
Oct 19982531112.421.97$3,164
Sep 19982711212.592.08$3,437
Aug 19982781211.301.91$3,164
Jul 19983361311.742.24$3,974
Jun 1998153611.242.24$1,733
May 1998144612.622.21$1,831
Apr 1998156513.042.51$2,047
Mar 1998158512.802.31$2,034
Feb 1998104413.952.30$1,460
Jan 1998160714.702.15$2,367
Dec 1997128716.322.41$2,106
Nov 1997206918.193.09$3,775
Oct 19974131619.253.15$8,001
Sep 19974091617.742.95$7,303
Aug 19973781417.862.55$6,787
Jul 19974331617.582.25$7,648
Jun 19975402017.242.26$9,355
May 19977301518.972.31$13,883
Apr 19975812117.882.08$10,432
Mar 19978851218.951.94$16,794
Feb 19977491120.492.21$15,371
Jan 19972872123.483.54$6,813
Dec 19964878023.32$11,357
Nov 19965092021.97$11,183
Oct 19965588223.31$13,007
Sep 19964125822.22$9,155
Aug 19964126220.26$8,347
Jul 19963655119.55$7,136
Jun 1996881318.73$1,648
May 1996862119.43$1,671
Apr 199680421.51$1,721
Mar 1996114819.38$2,209
Feb 1996206116.98$3,498
Jan 199676117.07$1,297
Dec 19954934517.19$8,475
Nov 19951131116.00$1,808
Oct 19951481315.43$2,284
Sep 19951871316.18$3,026
Aug 19952251315.92$3,582
Jul 19952044115.24$3,109
Jun 19952232216.41$3,659
May 199518724717.56$3,284
Apr 19952186417.73$3,865
Mar 199526733316.44$4,389
Feb 19952038416.58$3,366
Jan 19951988815.92$3,152
Dec 19942356115.03$3,532
Nov 199429710315.90$4,722
Oct 199427413315.58$4,269
Sep 199426813215.29$4,098
Aug 199430117616.13$4,855
Jul 199426925017.56$4,724
Jun 199425744517.09$4,392
May 199434220315.88$5,431
Apr 199426019714.14$3,676
Mar 199438731012.46$4,822
Feb 199431020312.50$3,875
Jan 199437912512.66$4,798
Dec 199342711712.33$5,265
Nov 199339110714.49$5,666
Oct 199344513015.85$7,053
Sep 199342012315.03$6,313
Aug 199348725615.66$7,626
Jul 199349818215.46$7,699
Jun 199346810616.79$7,858
May 199345217217.68$7,991
Apr 199341822718.05$7,545
Mar 199343226418.14$7,836
Feb 199340425317.90$7,232
Jan 19934115916.93$6,958

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                  328 bbl  × $ 95.72 =    $31,396
Casinghead gas         0 Mcf  × $  3.31 =         $0

────────────────────────────────────────────────────
Month total                                  $31,396

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/2737 is the state's own key, not one this site invented.