HALLEY, S.

Operated by CHEVRON U. S. A. INC. (P-5 148113) in the EMPEROR (DEVONIAN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 19788District 08Field 28961284Hydrogen sulphide fieldCondensateGasSaveExport
Value, all time
$2.7 M
Jan 1993 – May 2012
Value, last 12 filed months
$641
at the published price for each month
Months reported
233
no gaps in the span
Streams
2
condensate, 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 75 leases and 75 wells, and the rule below applies to all of them.

Discovered
1954-05-28
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,980 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 320 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: 1/1/97 & TO REMAIN SO FOR 1 YEAR

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
CondensateDisposition64 bbl$5,093
GasProduction894,518 Mcf$2,653,346
Total$2,658,439

335,546 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 (1)

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 31.7634, -103.0521. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.76345, -103.05207 · 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%
1 of 1 wells
With a plug date
100.0%
1 of 1 wells
Median depth
11,421 ft
1 wells filed one
Completion to plug
18.6 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
1100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1100.0%
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

The one well that filed a depth was drilled to 11,421 ft.

Completions filed
May 1993
1 of 1 wells
Plug dates filed
Dec 2011
1 of 1 wells

Last completion to plug: a median of 18.6 years across the 1 well that filed both dates, with the middle half between 18.6 years and 18.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-4950550210 U11,421 ftMay 1993Dec 2011Yes

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 (233)

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

233 months

May 20127091.612.49$641
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 201057078.103.51$4,452
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 2008011537.105.98$687
Nov 2008042755.496.86$2,929
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 2008013114.228.48$110
Jul 2008063131.0811.39$718
Jun 20080112131.3313.03$1,460
May 2008010123.1711.57$116
Apr 2008095110.3110.45$993
Mar 200802,215101.909.66$21,406
Feb 200806,33892.538.77$55,588
Jan 2008010,62190.388.21$87,153
Dec 200709,84588.337.30$71,888
Nov 200709,42991.677.29$68,753
Oct 200709,30882.856.92$64,430
Sep 200709,29575.846.24$58,039
Aug 200709,49769.066.39$60,666
Jul 200707,03570.906.39$44,939
Jun 2007033662.007.55$2,536
May 200706958.747.85$541
Apr 200706559.617.81$507
Mar 2007055956.927.30$4,082
Feb 200701,55555.108.22$12,776
Jan 2007010,60650.306.73$71,345
Dec 2006010,94356.656.92$75,708
Nov 2006010,32954.207.62$78,681
Oct 2006010,66754.906.01$64,149
Sep 2006010,14260.085.04$51,087
Aug 200609,33068.717.34$68,481
Jul 200608,82969.376.34$56,000
Jun 200609,03566.286.38$57,678
May 200608,14466.016.42$52,325
Apr 200605,69264.397.36$41,896
Mar 200609756.707.08$687
Feb 200601257.597.75$93
Jan 200603160.598.93$277
Dec 200509254.9413.42$1,234
Nov 200504154.6910.59$434
Oct 2005014158.3413.80$1,945
Sep 2005080861.4512.08$9,760
Aug 200501,30161.519.80$12,746
Jul 200501,16055.697.84$9,099
Jun 2005064952.337.38$4,790
May 200503,62845.226.65$24,130
Apr 200502,44549.207.36$17,996
Mar 200502,34550.377.15$16,778
Feb 200504,71745.226.31$29,773
Jan 200504,96743.166.32$31,402
Dec 200404,74839.866.75$32,054
Nov 200404,38645.286.33$27,765
Oct 200404,49349.706.52$29,272
Sep 200404,50843.245.28$23,820
Aug 200404,33942.375.55$24,084
Jul 200404,09338.286.08$24,903
Jun 200402,87136.106.43$18,469
May 200401,62837.486.49$10,573
Apr 200403,43234.475.86$20,106
Mar 200401,98734.365.53$10,988
Feb 200402,28432.455.51$12,584
Jan 200402,56832.036.30$16,177
Dec 200302,94230.266.30$18,539
Nov 200303,29428.804.60$15,136
Oct 200303,76728.174.76$17,930
Sep 200303,22226.314.75$15,302
Aug 200302,73129.765.13$14,009
Jul 200303,88229.415.17$20,073
Jun 200303,42228.565.98$20,474
May 200302,94026.595.97$17,560
Apr 200303,96926.675.41$21,461
Mar 200303,72631.146.10$22,714
Feb 200303,83933.487.93$30,427
Jan 200302,67530.315.58$14,932
Dec 200202,49726.914.85$12,120
Nov 200202,20824.664.14$9,134
Oct 200202,82126.464.23$11,930
Sep 200202,48827.443.64$9,044
Aug 200202,71325.963.16$8,584
Jul 200202,67824.583.06$8,199
Jun 200202,71923.733.34$9,077
May 200201,73824.663.58$6,229
Apr 200202,79223.653.51$9,806
Mar 200203,33922.003.10$10,360
Feb 200201,80218.222.38$4,281
Jan 200202,84617.172.38$6,761
Dec 200103,14116.932.36$7,427
Nov 200103,04818.072.41$7,332
Oct 200103,07519.782.53$7,776
Sep 200102,65124.262.25$5,968
Aug 200102,60524.873.05$7,953
Jul 200102,73223.933.20$8,734
Jun 200102,59124.563.82$9,908
May 200102,76825.524.31$11,923
Apr 200102,83024.685.34$15,099
Mar 200102,98224.545.38$16,033
Feb 200102,91227.755.77$16,794
Jan 200102,85627.478.40$23,987
Dec 200003,04826.889.12$27,805
Nov 200002,54732.215.66$14,411
Oct 200002,69531.235.15$13,867
Sep 200002,65231.875.19$13,755
Aug 200002,84129.644.54$12,900
Jul 200003,27928.534.09$13,410
Jun 200003,16129.304.40$13,900
May 200003,43427.263.68$12,636
Apr 200003,35124.513.12$10,442
Mar 200003,16328.422.86$9,045
Feb 200003,01527.622.73$8,220
Jan 200003,37725.272.48$8,377
Dec 199903,49824.282.42$8,478
Nov 199903,30923.192.43$8,054
Oct 199904,00020.982.80$11,215
Sep 199903,72621.752.62$9,758
Aug 199903,72019.262.88$10,697
Jul 199903,64617.892.37$8,650
Jun 199903,72515.942.36$8,799
May 199904,32115.792.32$10,029
Apr 199904,19215.102.21$9,256
Mar 199904,25112.471.84$7,815
Feb 199904,0709.981.82$7,398
Jan 199904,35510.381.90$8,274
Dec 199804,3789.201.77$7,764
Nov 199804,60310.892.19$10,061
Oct 199804,89112.421.97$9,631
Sep 199804,59812.592.08$9,576
Aug 199805,14411.301.91$9,811
Jul 199805,14611.742.24$11,513
Jun 199805,15511.242.24$11,533
May 199805,32512.622.21$11,749
Apr 199803,84513.042.51$9,633
Mar 199803,57312.802.31$8,252
Feb 199804,44413.952.30$10,217
Jan 199805,54614.702.15$11,950
Dec 199705,52216.322.41$13,314
Nov 199705,70118.193.09$17,606
Oct 199706,05619.253.15$19,075
Sep 199705,98517.742.95$17,685
Aug 199706,59617.862.55$16,851
Jul 199706,69717.582.25$15,048
Jun 199706,88517.242.26$15,541
May 199707,25718.972.31$16,753
Apr 199707,01817.882.08$14,617
Mar 199707,40918.951.94$14,367
Feb 199706,67620.492.21$14,727
Jan 199707,41523.483.54$26,247
Dec 199607,51523.32$0
Nov 199607,66321.97$0
Oct 199608,15323.31$0
Sep 199607,98022.22$0
Aug 199608,13120.26$0
Jul 199608,39419.55$0
Jun 199608,57918.73$0
May 199609,21119.43$0
Apr 199608,99821.51$0
Mar 199608,50819.38$0
Feb 199607,25116.98$0
Jan 199607,38817.07$0
Dec 199507,22417.19$0
Nov 199505,58816.00$0
Oct 199505,39615.43$0
Sep 199506,27016.18$0
Aug 199505,99515.92$0
Jul 199506,90915.24$0
Jun 199507,47716.41$0
May 199507,58917.56$0
Apr 199506,31417.73$0
Mar 199505,38116.44$0
Feb 199504,77816.58$0
Jan 199505,50015.92$0
Dec 199405,84215.03$0
Nov 199405,96115.90$0
Oct 199405,97615.58$0
Sep 199406,19715.29$0
Aug 199406,56216.13$0
Jul 199407,01917.56$0
Jun 199406,94717.09$0
May 199407,33415.88$0
Apr 199407,57414.14$0
Mar 199406,72712.46$0
Feb 199406,12812.50$0
Jan 199406,77012.66$0
Dec 199307,43112.33$0
Nov 199307,85814.49$0
Oct 199307,69815.85$0
Sep 199308,04015.03$0
Aug 199308,45415.66$0
Jul 199307,53115.46$0
Jun 199306,44316.79$0
May 199305,97317.68$0
Apr 199304,07518.05$0
Mar 199301,51718.14$0
Feb 199308,16017.90$0
Jan 1993011,13716.93$0

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 2012 — as filed, then multipliedworked
Condensate             7 bbl  × $ 91.61 =       $641
Gas                    0 Mcf  × $  2.49 =         $0

────────────────────────────────────────────────────
Month total                                     $641

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/G/19788 is the state's own key, not one this site invented.