MUNN "A"

Operated by HALVEY ENERGY CO. (P-5 347243) in the JAMESON (STRAWN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 11676District 7CField 45580666OilCasinghead gasSaveExport
Value, all time
$9 k
Jan 1993 – Nov 1996
Value, last 12 filed months
$3 k
at the published price for each month
Months reported
47
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 209 leases and 781 wells, and the rule below applies to all of them.

Discovered
1952-01-11
as the register files it
Field class
Oil and gas
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. The field rule took effect on 1959-10-01.

The Commission's schedule remark for this field reads: 640 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
OilDisposition501 bbl$8,544
Casinghead gasProduction12,574 Mcf$0
Total$8,544

12,574 Mcf of this lease's gas, across 44 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.

Every month this lease reported (47)

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

47 months

Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19966613820.26$1,337
Jul 19963021519.55$587
Jun 1996019818.73$0
May 1996023819.43$0
Apr 1996020921.51$0
Mar 1996025619.38$0
Feb 19967236316.98$1,223
Jan 1996029017.07$0
Dec 1995023717.19$0
Nov 1995023616.00$0
Oct 1995030715.43$0
Sep 1995030816.18$0
Aug 1995032815.92$0
Jul 1995029515.24$0
Jun 1995024216.41$0
May 1995025217.56$0
Apr 19952928717.73$514
Mar 1995230516.44$33
Feb 1995028716.58$0
Jan 19955827015.92$923
Dec 1994022915.03$0
Nov 1994023515.90$0
Oct 1994031015.58$0
Sep 1994031315.29$0
Aug 1994029516.13$0
Jul 1994028617.56$0
Jun 19944531317.09$769
May 1994031215.88$0
Apr 1994032814.14$0
Mar 19943733612.46$461
Feb 1994031612.50$0
Jan 1994036012.66$0
Dec 1993038012.33$0
Nov 19932814214.49$406
Oct 1993033415.85$0
Sep 1993022215.03$0
Aug 1993032315.66$0
Jul 19934933515.46$758
Jun 1993033216.79$0
May 1993033117.68$0
Apr 19938531318.05$1,534
Mar 1993033018.14$0
Feb 1993032017.90$0
Jan 1993031816.93$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.

Aug 1996 — as filed, then multipliedworked
Oil                   66 bbl  × $ 20.26 =     $1,337
Casinghead gas       138 Mcf  ×  no price            —

────────────────────────────────────────────────────
Month total                                   $1,337

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/11676 is the state's own key, not one this site invented.