HALFF ESTATE "B"

Operated by COX, JOHN L. (P-5 185980) in the OLD UPLAND (BEND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 7647District 7CField 67039500NGPA filingOilCasinghead gasSaveExport
Value, all time
$24 k
Jan 1993 – Jul 1996
Value, last 12 filed months
$3 k
at the published price for each month
Months reported
43
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 14 wells, and the rule below applies to all of them.

Discovered
1974-11-07
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition1,442 bbl$23,925
Casinghead gasProduction36,714 Mcf$0
Total$23,925

36,714 Mcf of this lease's gas, across 34 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 31.3319, -102.0058. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.33190, -102.00584 · 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
10,300 ft
1 wells filed one
Completion to plug
17.5 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 10,300 ft.

Completions filed
Nov 1978
1 of 1 wells
Plug dates filed
May 1996
1 of 1 wells

Last completion to plug: a median of 17.5 years across the 1 well that filed both dates, with the middle half between 17.5 years and 17.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-46131334110,300 ftNov 1978May 1996Yes

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 (43)

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

43 months

Jul 19960019.55$0
Jun 19960018.73$0
May 19963019.43$58
Apr 19960021.51$0
Mar 1996177019.38$3,430
Feb 19960016.98$0
Jan 19960017.07$0
Dec 19950017.19$0
Nov 19950016.00$0
Oct 1995047115.43$0
Sep 1995068116.18$0
Aug 1995061415.92$0
Jul 1995078615.24$0
Jun 199501,04016.41$0
May 1995076717.56$0
Apr 1995086017.73$0
Mar 1995065916.44$0
Feb 1995085416.58$0
Jan 1995090015.92$0
Dec 199401,00115.03$0
Nov 19941891,00915.90$3,005
Oct 199401,10915.58$0
Sep 199401,11615.29$0
Aug 199411,03216.13$16
Jul 19941791,01317.56$3,143
Jun 199401,13017.09$0
May 199401,07315.88$0
Apr 199401,14514.14$0
Mar 19941861,17012.46$2,318
Feb 199401,12412.50$0
Jan 199401,29312.66$0
Dec 199301,17312.33$0
Nov 199301,21314.49$0
Oct 199301,21115.85$0
Sep 19931601,17615.03$2,405
Aug 199301,20915.66$0
Jul 199301,40815.46$0
Jun 19931821,41216.79$3,056
May 19931801,59517.68$3,182
Apr 199301,10718.05$0
Mar 199301,42818.14$0
Feb 19931851,37617.90$3,312
Jan 199301,55916.93$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 1996 — as filed, then multipliedworked
Oil                    3 bbl  × $ 19.43 =        $58
Casinghead gas         0 Mcf  ×  no price            —

────────────────────────────────────────────────────
Month total                                      $58

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. 7C/O/7647 is the state's own key, not one this site invented.