SHIRK, J. H. -C- A/C #2

Operated by BURLINGTON RESOURCES OIL&GAS CO. (P-5 109338) in the MCCAMEY field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 973District 7CField 58840001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$449 k
Jan 1993 – Jan 1997
Value, last 12 filed months
$104 k
at the published price for each month
Months reported
49
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 198 leases and 1,864 wells, and the rule below applies to all of them.

Discovered
1925-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 1936-07-21.

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: OIL RULES ADDED TO GAS FIELD 1/24/95

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
OilDisposition26,948 bbl$449,211
Casinghead gasProduction18 Mcf$0
Total$449,211

18 Mcf of this lease's gas, across 18 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 (19)

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 31.1950, -102.1719. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

31.19492, -102.17218 · 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
47.4%
9 of 19 wells
With a plug date
36.8%
7 of 19 wells
Median depth
2,830 ft
14 wells filed one
Completion to plug
69.1 years
median over 5 wells

What the state filed about each well

On the RRC proration schedule
947.4%
A plug date is filed
736.8%
BothOn the schedule and plugged. Neither fact cancels the other.
736.8%
NeitherNo plug date, and not on the schedule.
1052.6%

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

Total depth in feet, 14 of 19 wells. Median 2,830 ft, with the middle half between 2,821 and 2,830 ft; the shallowest is 2,810 ft and the deepest 2,852 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 12 of 19 wells, Jun 1944 – Feb 1999. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jun 1944 – Feb 1999
12 of 19 wells; 7 filed none
Plug dates filed
May 1983 – May 2015
7 of 19 wells; 12 filed none

Last completion to plug: a median of 69.1 years across the 5 wells that filed both dates, with the middle half between 68.8 years and 69.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

19 wells

42-4610263822,830 ftMay 1983Yes
42-46102645142,847 ftSep 1994Yes
42-461038554Yes
42-461041097Yes
42-4610263712,830 ft
42-4610264210
42-4610264311
42-461305374 A2,820 ftFeb 1999Mar 2001Yes
42-46104112162,830 ftApr 1996
42-4610385432,852 ftMar 1996
42-461318292 A2,825 ftDec 1981
42-461305037 A2,810 ftFeb 1976
42-4610264615Jul 1946
42-46104111132,829 ftApr 1946May 2015Yes
42-46102644122,812 ftNov 1945Aug 2014Yes
42-4610264192,830 ftNov 1945
42-4610411082,851 ftSep 1945
42-4610264062,818 ftDec 1944Jul 2014Yes
42-4610263952,822 ftJun 1944Apr 2015Yes

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 (49)

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

49 months

Jan 19970023.483.54$0
Dec 1996792023.32$18,469
Nov 1996435021.97$9,557
Oct 1996679023.31$15,827
Sep 1996453022.22$10,066
Aug 1996748020.26$15,154
Jul 1996510019.55$9,971
Jun 1996705018.73$13,205
May 1996368019.43$7,150
Apr 199678021.51$1,678
Mar 199669019.38$1,337
Feb 199679016.98$1,341
Jan 1996127017.07$2,168
Dec 1995351017.19$6,034
Nov 19950016.00$0
Oct 1995414015.43$6,388
Sep 1995441016.18$7,135
Aug 1995429015.92$6,830
Jul 1995169015.24$2,576
Jun 1995329016.41$5,399
May 1995818017.56$14,364
Apr 1995491017.73$8,705
Mar 19951,004016.44$16,506
Feb 19951,020016.58$16,912
Jan 19951,184015.92$18,849
Dec 19941,023015.03$15,376
Nov 19941,018015.90$16,186
Oct 1994455015.58$7,089
Sep 1994349115.29$5,336
Aug 1994837116.13$13,501
Jul 19940117.56$0
Jun 1994326117.09$5,571
May 1994159115.88$2,525
Apr 1994328114.14$4,638
Mar 19940012.46$0
Feb 1994167112.50$2,088
Jan 19941,142012.66$14,458
Dec 1993983012.33$12,120
Nov 1993827114.49$11,983
Oct 19931,461115.85$23,157
Sep 19931,277115.03$19,193
Aug 19931,436115.66$22,488
Jul 19931,066115.46$16,480
Jun 19931,330116.79$22,331
May 19930117.68$0
Apr 1993343118.05$6,191
Mar 1993174118.14$3,156
Feb 1993354117.90$6,337
Jan 1993200116.93$3,386

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.

Dec 1996 — as filed, then multipliedworked
Oil                  792 bbl  × $ 23.32 =    $18,469
Casinghead gas         0 Mcf  ×  no price            —

────────────────────────────────────────────────────
Month total                                  $18,469

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/973 is the state's own key, not one this site invented.