CHALK, G. O. -A-

Operated by CONOCOPHILLIPS COMPANY (P-5 172232) 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 2685District 08Field 42971001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$1.3 M
Jan 1993 – Mar 2012
Value, last 12 filed months
$177 k
at the published price for each month
Months reported
231
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
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
OilDisposition43,313 bbl$1,236,729
Casinghead gasProduction28,396 Mcf$33,002
Total$1,269,730

19,445 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 32.1270, -101.2605. A lease has no coordinate of its own — that point is the mean of its wells, and they span 3.1 miles.

32.11612, -101.27676 · 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
33.3%
2 of 6 wells
Median depth
3,033 ft
4 wells filed one
Completion to plug
24.4 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
6100.0%
A plug date is filed
233.3%
BothOn the schedule and plugged. Neither fact cancels the other.
233.3%
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 3,000 and 3,270 ft, median 3,033 ft, over the 4 wells that filed a depth.

Completions filed
Sep 1976 – Oct 2014
4 of 6 wells; 2 filed none
Plug dates filed
May 1996 – Jan 2015
2 of 6 wells; 4 filed none

Last completion to plug: a median of 24.4 years across the 2 wells that filed both dates, with the middle half between 19.5 years and 29.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

6 wells

42-227021743Yes
42-227025291Yes
42-2271005493,000 ftOct 2014Yes
42-2270423843,015 ftOct 1981May 1996Yes
42-22732176123,050 ftOct 1980Jan 2015Yes
42-22731056553,270 ftSep 1976Yes

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 (231)

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

231 months

Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 20112388395.723.31$23,056
Oct 20112507284.983.65$21,508
Sep 20112175483.623.99$18,361
Aug 20112405183.404.15$20,228
Jul 20112585694.144.52$24,541
Jun 2011247092.904.64$22,946
May 2011220398.134.40$21,602
Apr 201123211105.964.33$24,630
Mar 20111631196.364.06$15,751
Feb 20111102085.644.18$9,504
Jan 2011452886.504.59$4,021
Dec 201020985.734.35$1,754
Nov 2010211580.843.80$1,755
Oct 2010101378.103.51$827
Sep 2010222872.633.98$1,709
Aug 2010253973.684.42$2,014
Jul 2010214072.554.74$1,713
Jun 2010204370.364.91$1,618
May 2010243771.124.24$1,864
Apr 2010232081.694.12$1,961
Mar 2010263878.394.39$2,205
Feb 2010273373.585.44$2,166
Jan 2010254174.365.96$2,104
Dec 2009273971.445.48$2,143
Nov 2009253774.593.75$2,004
Oct 2009262772.544.11$1,997
Sep 2009231865.543.06$1,563
Aug 2009694867.423.22$4,806
Jul 2009473461.133.46$2,991
Jun 2009464466.163.90$3,215
May 2009402654.743.93$2,292
Apr 2009364046.773.59$1,827
Mar 2009424342.144.06$1,944
Feb 2009444032.814.63$1,629
Jan 2009834035.865.37$3,191
Dec 2008901937.105.98$3,453
Nov 2008871355.496.86$4,917
Oct 2008882175.246.92$6,766
Sep 200820101.767.88$204
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200810131.3313.03$131
May 20083413123.1711.57$4,338
Apr 20084620110.3110.45$5,283
Mar 20084820101.909.66$5,084
Feb 2008512392.538.77$4,921
Jan 2008983690.388.21$9,153
Dec 20071084288.337.30$9,846
Nov 20071333491.677.29$12,440
Oct 20071333682.856.92$11,268
Sep 20071303775.846.24$10,090
Aug 20071333669.066.39$9,415
Jul 20071272270.906.39$9,145
Jun 20071322662.007.55$8,380
May 20071482458.747.85$8,882
Apr 20071713259.617.81$10,443
Mar 20071191956.927.30$6,912
Feb 200762955.108.22$3,490
Jan 2007821250.306.73$4,205
Dec 2006841256.656.92$4,842
Nov 2006801554.207.62$4,450
Oct 2006851654.906.01$4,763
Sep 2006821660.085.04$5,007
Aug 2006841668.717.34$5,889
Jul 2006881269.376.34$6,181
Jun 2006100866.286.38$6,679
May 2006942366.016.42$6,353
Apr 20061044464.397.36$7,020
Mar 20061104156.707.08$6,527
Feb 2006993057.597.75$5,934
Jan 20061032560.598.93$6,464
Dec 2005912154.9413.42$5,281
Nov 2005962654.6910.59$5,526
Oct 2005932158.3413.80$5,715
Sep 2005891361.4512.08$5,626
Aug 200593061.519.80$5,720
Jul 2005972455.697.84$5,590
Jun 2005961552.337.38$5,134
May 20051112445.226.65$5,179
Apr 2005992849.207.36$5,077
Mar 2005962650.377.15$5,022
Feb 2005912245.226.31$4,254
Jan 20051161343.166.32$5,089
Dec 20041162739.866.75$4,806
Nov 20041233045.286.33$5,759
Oct 20041312949.706.52$6,700
Sep 20041633243.245.28$7,217
Aug 20041233242.375.55$5,389
Jul 20041253438.286.08$4,992
Jun 20041433136.106.43$5,362
May 20041323237.486.49$5,155
Apr 20041212734.475.86$4,329
Mar 20041762734.365.53$6,197
Feb 2004952432.455.51$3,215
Jan 2004772632.036.30$2,630
Dec 2003782730.266.30$2,530
Nov 2003772828.804.60$2,346
Oct 2003862628.174.76$2,546
Sep 20031272926.314.75$3,479
Aug 20031233229.765.13$3,825
Jul 20031543229.415.17$4,695
Jun 2003772028.565.98$2,319
May 20031513126.595.97$4,200
Apr 20031213126.675.41$3,395
Mar 20031283231.146.10$4,181
Feb 20031202833.487.93$4,240
Jan 20031322830.315.58$4,157
Dec 20021602926.914.85$4,446
Nov 2002146024.664.14$3,600
Oct 20021372826.464.23$3,743
Sep 20021222227.443.64$3,428
Aug 20021272825.963.16$3,386
Jul 20021412724.583.06$3,548
Jun 2002972723.733.34$2,392
May 20021032924.663.58$2,644
Apr 20021203023.653.51$2,943
Mar 20021132322.003.10$2,557
Feb 200295018.222.38$1,731
Jan 20021192517.172.38$2,103
Dec 20011182816.932.36$2,064
Nov 20011482618.072.41$2,737
Oct 20011543019.782.53$3,122
Sep 20011081824.262.25$2,661
Aug 20011222924.873.05$3,123
Jul 20011272923.933.20$3,132
Jun 20011572924.563.82$3,967
May 20011532725.524.31$4,021
Apr 20011603024.685.34$4,109
Mar 20011562724.545.38$3,973
Feb 20011652427.755.77$4,717
Jan 2001158027.478.40$4,340
Dec 2000155026.889.12$4,166
Nov 20001442432.215.66$4,774
Oct 20001857431.235.15$6,158
Sep 200013321231.875.19$5,338
Aug 2000152329.644.54$4,519
Jul 20001612428.534.09$4,691
Jun 20001623829.304.40$4,914
May 20001513527.263.68$4,245
Apr 20001826624.513.12$4,666
Mar 20001564928.422.86$4,574
Feb 20001445427.622.73$4,125
Jan 20001717025.272.48$4,495
Dec 19991346624.282.42$3,413
Nov 19991596523.192.43$3,845
Oct 19992316820.982.80$5,037
Sep 19992217921.752.62$5,014
Aug 19991376419.262.88$2,823
Jul 1999363517.892.37$727
Jun 19991928215.942.36$3,254
May 19991507215.792.32$2,536
Apr 19992076815.102.21$3,276
Mar 19992106312.471.84$2,735
Feb 1999165609.981.82$1,756
Jan 19991635310.381.90$1,793
Dec 1998186649.201.77$1,825
Nov 19982166410.892.19$2,492
Oct 19982055412.421.97$2,652
Sep 19981865112.592.08$2,448
Aug 19983056911.301.91$3,578
Jul 19982116711.742.24$2,627
Jun 19982868911.242.24$3,414
May 199838712112.622.21$5,151
Apr 19982247213.042.51$3,101
Mar 19981197912.802.31$1,706
Feb 19982397213.952.30$3,500
Jan 199841112114.702.15$6,302
Dec 199738911216.322.41$6,619
Nov 199741611918.193.09$7,935
Oct 19973308519.253.15$6,620
Sep 19972596017.742.95$4,772
Aug 199739336917.862.55$7,962
Jul 199736436017.582.25$7,208
Jun 199738833717.242.26$7,450
May 199747736918.972.31$9,901
Apr 199744334017.882.08$8,629
Mar 199744736218.951.94$9,173
Feb 199748532820.492.21$10,661
Jan 199742133723.483.54$11,078
Dec 199645634423.32$10,634
Nov 199650242221.97$11,029
Oct 199654138323.31$12,611
Sep 199647135822.22$10,466
Aug 199652536020.26$10,637
Jul 199652937219.55$10,342
Jun 199646234218.73$8,653
May 199652636719.43$10,220
Apr 199659437121.51$12,777
Mar 199658638419.38$11,357
Feb 199647034816.98$7,981
Jan 199653234717.07$9,081
Dec 199559638317.19$10,245
Nov 199560336416.00$9,648
Oct 199556854615.43$8,764
Sep 199557936516.18$9,368
Aug 199541735215.92$6,639
Jul 199543136415.24$6,568
Jun 199548337816.41$7,926
May 199544242217.56$7,762
Apr 199536438617.73$6,454
Mar 199536438316.44$5,984
Feb 1995286116.58$4,742
Jan 199534439915.92$5,476
Dec 199433539615.03$5,035
Nov 199435836015.90$5,692
Oct 199428244715.58$4,394
Sep 199430245315.29$4,618
Aug 199432648716.13$5,258
Jul 199434748117.56$6,093
Jun 199439618617.09$6,768
May 199440148915.88$6,368
Apr 199430449214.14$4,299
Mar 199431245612.46$3,888
Feb 199421736012.50$2,713
Jan 199421252012.66$2,684
Dec 199319029512.33$2,343
Nov 199315727714.49$2,275
Oct 199321949115.85$3,471
Sep 199319344315.03$2,901
Aug 199327749015.66$4,338
Jul 199322352515.46$3,448
Jun 199321553816.79$3,610
May 199324752717.68$4,367
Apr 199326350918.05$4,747
Mar 199325050618.14$4,535
Feb 199325547817.90$4,565
Jan 199327249816.93$4,605

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                  238 bbl  × $ 95.72 =    $22,781
Casinghead gas        83 Mcf  × $  3.31 =       $275

────────────────────────────────────────────────────
Month total                                  $23,056

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/2685 is the state's own key, not one this site invented.