BLACKSHEAR

Operated by KOLB, JAMES (P-5 474099) in the ASPERMONT LAKE (CANYON SAND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4184District 7BField 04170666OilCasinghead gasSaveExport
Value, all time
$242 k
Jan 1993 – Jul 2003
Value, last 12 filed months
$18 k
at the published price for each month
Months reported
127
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 13 leases and 39 wells, and the rule below applies to all of them.

Discovered
1951-05-16
as the register files it
Field class
Oil
the register's own label
Between wells
1,200 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 acres.

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
OilDisposition13,000 bbl$242,453
Casinghead gasProduction329 Mcf$0
Total$242,453

329 Mcf of this lease's gas, across 21 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 (4)

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 33.0999, -100.2388. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

33.09990, -100.23855 · 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%
4 of 4 wells
With a plug date
75.0%
3 of 4 wells
Median depth
4,973 ft
3 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
4100.0%
A plug date is filed
375.0%
BothOn the schedule and plugged. Neither fact cancels the other.
375.0%
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 4,951 and 5,029 ft, median 4,973 ft, over the 3 wells that filed a depth.

Plug dates filed
Oct 1999 – Jun 2003
3 of 4 wells; 1 filed none

4 wells

42-4330047644,951 ftJun 2003Yes
42-4338001425,029 ftOct 1999Yes
42-4338001534,973 ftOct 1999Yes
42-433800175Yes

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 (127)

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

127 months

Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 2003125031.146.10$3,893
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 2002181026.914.85$4,871
Nov 20020024.664.14$0
Oct 2002189026.464.23$5,001
Sep 20020027.443.64$0
Aug 2002171025.963.16$4,439
Jul 20020024.583.06$0
Jun 2002179023.733.34$4,248
May 20020024.663.58$0
Apr 2002174023.653.51$4,115
Mar 20020022.003.10$0
Feb 2002183018.222.38$3,334
Jan 20020017.172.38$0
Dec 2001184016.932.36$3,115
Nov 20010018.072.41$0
Oct 2001176019.782.53$3,481
Sep 2001177024.262.25$4,294
Aug 20010024.873.05$0
Jul 2001173023.933.20$4,140
Jun 20010024.563.82$0
May 2001168025.524.31$4,287
Apr 20010024.685.34$0
Mar 2001180024.545.38$4,417
Feb 20010027.755.77$0
Jan 2001179027.478.40$4,917
Dec 2000174026.889.12$4,677
Nov 20000032.215.66$0
Oct 20000031.235.15$0
Sep 2000167031.875.19$5,322
Aug 20000029.644.54$0
Jul 2000190028.534.09$5,421
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 2000185024.513.12$4,534
Mar 20000028.422.86$0
Feb 2000182027.622.73$5,027
Jan 20000025.272.48$0
Dec 1999184024.282.42$4,468
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 1999185017.892.37$3,310
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 199918509.981.82$1,846
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 1998186012.421.97$2,310
Sep 19980012.592.08$0
Aug 1998187011.301.91$2,113
Jul 1998183011.742.24$2,148
Jun 19980011.242.24$0
May 1998188012.622.21$2,373
Apr 1998364013.042.51$4,747
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 1997186016.322.41$3,036
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 1997184017.742.95$3,264
Aug 19970017.862.55$0
Jul 1997193017.582.25$3,393
Jun 19970017.242.26$0
May 1997198018.972.31$3,756
Apr 1997197017.882.08$3,522
Mar 1997194018.951.94$3,676
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 1996193023.32$4,501
Nov 1996193021.97$4,240
Oct 19960023.31$0
Sep 1996195022.22$4,333
Aug 1996194020.26$3,930
Jul 19960019.55$0
Jun 1996188018.73$3,521
May 1996193019.43$3,750
Apr 19960021.51$0
Mar 1996199019.38$3,857
Feb 19960016.98$0
Jan 1996198017.07$3,380
Dec 19950017.19$0
Nov 1995198016.00$3,168
Oct 19950015.43$0
Sep 1995195016.18$3,155
Aug 1995196015.92$3,120
Jul 1995194015.24$2,957
Jun 19950016.41$0
May 1995192017.56$3,372
Apr 1995192017.73$3,404
Mar 1995191016.44$3,140
Feb 19950016.58$0
Jan 1995380015.92$6,050
Dec 19940015.03$0
Nov 1994198015.90$3,148
Oct 1994201015.58$3,132
Sep 19941979315.29$3,012
Aug 19940116.13$0
Jul 1994193117.56$3,389
Jun 1994180117.09$3,076
May 1994196115.88$3,112
Apr 19940114.14$0
Mar 1994387112.46$4,822
Feb 1994388112.50$4,850
Jan 19940112.66$0
Dec 1993193112.33$2,380
Nov 19930114.49$0
Oct 19930115.85$0
Sep 1993474115.03$7,124
Aug 19930115.66$0
Jul 19930115.46$0
Jun 199301916.79$0
May 19934704917.68$8,310
Apr 199304518.05$0
Mar 19934811918.14$8,725
Feb 199303317.90$0
Jan 199305716.93$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.

Mar 2003 — as filed, then multipliedworked
Oil                  125 bbl  × $ 31.14 =     $3,893
Casinghead gas         0 Mcf  × $  6.10 =         $0

────────────────────────────────────────────────────
Month total                                   $3,893

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. 7B/O/4184 is the state's own key, not one this site invented.