DOUBLE MOUNTAIN "A"

Operated by CHAPARRAL ENERGY, L.L.C. (P-5 144535) in the TUFBOW (STRAWN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 63491District 8AField 91670700Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$683 k
Jan 1993 – Jan 2016
Value, last 12 filed months
$0
at the published price for each month
Months reported
277
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 12 leases and 22 wells, and the rule below applies to all of them.

Discovered
1979-08-10
as the register files it
Field class
Oil
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 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.

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
OilDisposition30,396 bbl$682,173
Casinghead gasProduction1,441 Mcf$812
Total$682,985

1,105 Mcf of this lease's gas, across 46 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 (3)

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 33.0722, -101.1702. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

33.07161, -101.16944 · 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%
3 of 3 wells
With a plug date
100.0%
3 of 3 wells
Median depth
8,078 ft
3 wells filed one
Completion to plug
16.7 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
3100.0%
A plug date is filed
3100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
3100.0%
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

Between 8,025 and 8,125 ft, median 8,078 ft, over the 3 wells that filed a depth.

Completions filed
Sep 1981 – May 2006
3 of 3 wells
Plug dates filed
Jun 1998 – Feb 2014
3 of 3 wells

Last completion to plug: a median of 16.7 years across the 3 wells that filed both dates, with the middle half between 12.3 years and 22.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-1693167948,125 ftMay 2006Feb 2014Yes
42-1693164838,025 ftOct 1981Jun 1998Yes
42-1693161728,078 ftSep 1981Apr 2009Yes

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 (277)

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

277 months

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 2014143097.406.19$13,928
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 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20090035.865.37$0
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 20070058.747.85$0
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 2006221069.376.34$15,331
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 2006173057.597.75$9,963
Jan 2006174060.598.93$10,543
Dec 2005174054.9413.42$9,560
Nov 2005171054.6910.59$9,352
Oct 20050058.3413.80$0
Sep 2005168061.4512.08$10,324
Aug 20050061.519.80$0
Jul 2005169055.697.84$9,412
Jun 2005169052.337.38$8,844
May 2005179045.226.65$8,094
Apr 2005173049.207.36$8,512
Mar 2005175050.377.15$8,815
Feb 2005177045.226.31$8,004
Jan 2005170043.166.32$7,337
Dec 20040039.866.75$0
Nov 2004353045.286.33$15,984
Oct 20040049.706.52$0
Sep 2004173043.245.28$7,481
Aug 2004169042.375.55$7,161
Jul 2004169038.286.08$6,469
Jun 20040036.106.43$0
May 200459037.486.49$2,211
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 2004169032.036.30$5,413
Dec 2003171030.266.30$5,174
Nov 2003169028.804.60$4,867
Oct 2003358028.174.76$10,085
Sep 2003182026.314.75$4,788
Aug 2003179029.765.13$5,327
Jul 2003179029.415.17$5,264
Jun 200325028.565.98$714
May 2003180026.595.97$4,786
Apr 2003183026.675.41$4,881
Mar 2003364031.146.10$11,335
Feb 2003181033.487.93$6,060
Jan 2003182030.315.58$5,516
Dec 2002185026.914.85$4,978
Nov 2002170024.664.14$4,192
Oct 2002370026.464.23$9,790
Sep 2002185027.443.64$5,076
Aug 20020025.963.16$0
Jul 2002369024.583.06$9,070
Jun 2002187023.733.34$4,438
May 20020024.663.58$0
Apr 2002323023.653.51$7,639
Mar 2002167022.003.10$3,674
Feb 2002178018.222.38$3,243
Jan 2002183017.172.38$3,142
Dec 2001166016.932.36$2,810
Nov 2001184018.072.41$3,325
Oct 2001181019.782.53$3,580
Sep 2001182024.262.25$4,415
Aug 20010024.873.05$0
Jul 2001176023.933.20$4,212
Jun 20010024.563.82$0
May 2001176025.524.31$4,492
Apr 2001179024.685.34$4,418
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 20010027.478.40$0
Dec 20000026.889.12$0
Nov 2000179032.215.66$5,766
Oct 20000031.235.15$0
Sep 20000031.875.19$0
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 1999178024.282.42$4,322
Nov 1999178023.192.43$4,128
Oct 1999355020.982.80$7,448
Sep 19990021.752.62$0
Aug 1999179019.262.88$3,448
Jul 1999174017.892.37$3,113
Jun 19990115.942.36$2
May 1999172015.792.32$2,716
Apr 1999176015.102.21$2,658
Mar 1999344012.471.84$4,290
Feb 199969309.981.82$6,916
Jan 1999340010.381.90$3,529
Dec 199817609.201.77$1,619
Nov 1998177010.892.19$1,928
Oct 19980012.421.97$0
Sep 1998181112.592.08$2,281
Aug 19980011.301.91$0
Jul 1998349211.742.24$4,102
Jun 19981742111.242.24$2,003
May 19981762012.622.21$2,265
Apr 199801913.042.51$48
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 19971841916.322.41$3,049
Nov 1997354018.193.09$6,439
Oct 199702319.253.15$72
Sep 19973541317.742.95$6,318
Aug 19971783417.862.55$3,266
Jul 19971772117.582.25$3,159
Jun 19971793517.242.26$3,165
May 19971794118.972.31$3,490
Apr 19971812317.882.08$3,284
Mar 19971802118.951.94$3,452
Feb 19971772820.492.21$3,689
Jan 19973751423.483.54$8,855
Dec 19961811223.32$4,221
Nov 19961791221.97$3,933
Oct 19961781423.31$4,149
Sep 19961781522.22$3,955
Aug 19961744520.26$3,525
Jul 19961754519.55$3,421
Jun 1996178518.73$3,334
May 19963565119.43$6,917
Apr 19961794521.51$3,850
Mar 19963643019.38$7,054
Feb 199602616.98$0
Jan 19961821117.07$3,107
Dec 1995365617.19$6,274
Nov 19951801416.00$2,880
Oct 19951781615.43$2,747
Sep 19951783316.18$2,880
Aug 19951753215.92$2,786
Jul 19951,6332715.24$24,887
Jun 199536719616.41$6,022
May 199536722617.56$6,445
Apr 199536116917.73$6,401
Mar 19953645116.44$5,984
Feb 1995359016.58$5,952
Jan 1995360015.92$5,731
Dec 1994361115.03$5,426
Nov 1994363115.90$5,772
Oct 1994180115.58$2,804
Sep 1994359115.29$5,489
Aug 1994362116.13$5,839
Jul 1994181117.56$3,178
Jun 1994724117.09$12,373
May 1994544115.88$8,639
Apr 1994358114.14$5,062
Mar 1994366112.46$4,560
Feb 1994183112.50$2,288
Jan 19940112.66$0
Dec 19930112.33$0
Nov 1993360114.49$5,216
Oct 1993359115.85$5,690
Sep 1993180115.03$2,705
Aug 1993361115.66$5,653
Jul 1993185115.46$2,860
Jun 1993361116.79$6,061
May 1993179117.68$3,165
Apr 1993356118.05$6,426
Mar 1993344118.14$6,240
Feb 1993180117.90$3,222
Jan 1993178116.93$3,014

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.

Feb 2014 — as filed, then multipliedworked
Oil                  143 bbl  × $ 97.40 =    $13,928
Casinghead gas         0 Mcf  × $  6.19 =         $0

────────────────────────────────────────────────────
Month total                                  $13,928

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. 8A/O/63491 is the state's own key, not one this site invented.