HEARD B-2, S. W.

Operated by MAYCO OIL (P-5 535785) in the STONEBURG field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 21439District 09Field 86324001OilCasinghead gasSaveExport
Value, all time
$36 k
Jan 1993 – Aug 1998
Value, last 12 filed months
$1 k
at the published price for each month
Months reported
68
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 11 leases and 17 wells, and the rule below applies to all of them.

Discovered
1941-12-07
as the register files it
Field class
Oil
the register's own label
Between wells
990 ft
minimum
From a lease line
330 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
OilDisposition2,158 bbl$36,326
Casinghead gasProduction60 Mcf$31
Total$36,356

48 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 33.6643, -97.8688. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

33.66425, -97.86882 · 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
6,570 ft
1 wells filed one
Completion to plug
16.8 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 6,570 ft.

Completions filed
Aug 1981
1 of 1 wells
Plug dates filed
Jun 1998
1 of 1 wells

Last completion to plug: a median of 16.8 years across the 1 well that filed both dates, with the middle half between 16.8 years and 16.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-3373148626,570 ftAug 1981Jun 1998Yes

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 (68)

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

68 months

Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 199888013.952.30$1,228
Jan 19980014.702.15$0
Dec 19970116.322.41$2
Nov 19970118.193.09$3
Oct 19970119.253.15$3
Sep 19970117.742.95$3
Aug 19970117.862.55$3
Jul 19970117.582.25$2
Jun 19970117.242.26$2
May 19970118.972.31$2
Apr 1997173117.882.08$3,095
Mar 19970118.951.94$2
Feb 19970120.492.21$2
Jan 19970123.483.54$4
Dec 19960123.32$0
Nov 1996175121.97$3,845
Oct 19960123.31$0
Sep 19960122.22$0
Aug 19960120.26$0
Jul 1996144119.55$2,815
Jun 19960118.73$0
May 19960119.43$0
Apr 19960121.51$0
Mar 19960119.38$0
Feb 1996141116.98$2,394
Jan 1996160117.07$2,731
Dec 19950117.19$0
Nov 19950116.00$0
Oct 19950115.43$0
Sep 19950116.18$0
Aug 19950115.92$0
Jul 19950115.24$0
Jun 19950116.41$0
May 19950117.56$0
Apr 1995121117.73$2,145
Mar 19950116.44$0
Feb 1995154116.58$2,553
Jan 19950115.92$0
Dec 19940115.03$0
Nov 1994122115.90$1,940
Oct 19940115.58$0
Sep 19940115.29$0
Aug 19940116.13$0
Jul 1994125117.56$2,195
Jun 19940117.09$0
May 19940115.88$0
Apr 1994127114.14$1,796
Mar 19940112.46$0
Feb 19940112.50$0
Jan 1994142112.66$1,798
Dec 19930112.33$0
Nov 1993160114.49$2,318
Oct 19930115.85$0
Sep 19930115.03$0
Aug 19930115.66$0
Jul 1993164115.46$2,535
Jun 19930116.79$0
May 19930117.68$0
Apr 19930118.05$0
Mar 1993162118.14$2,939
Feb 19930117.90$0
Jan 19930116.93$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.

Feb 1998 — as filed, then multipliedworked
Oil                   88 bbl  × $ 13.95 =     $1,228
Casinghead gas         0 Mcf  × $  2.30 =         $0

────────────────────────────────────────────────────
Month total                                   $1,228

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. 09/O/21439 is the state's own key, not one this site invented.