KING RANCH ALAZAN

Operated by EXXON CORP. (P-5 257097) in the ALAZAN (ALL ZONES) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 6998District 04Field 01095034OilCasinghead gasSave
Value, all time
$1.9 M
Jan 1993 – Jun 1998
Value, last 12 filed months
$0
at the published price for each month
Months reported
66
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition115,666 bbl$1,917,011
Casinghead gasProduction129,195 Mcf$19,653
Total$1,936,665

120,288 Mcf of this lease's gas, across 45 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 (56)

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 27.3894, -97.5649. A lease has no coordinate of its own — that point is the mean of its wells, and they span 9.2 miles. 1 well has no surveyed location and is left out of it.

27.42296, -97.56977 · centre of 55 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%
56 of 56 wells
With a plug date
94.6%
53 of 56 wells
Median depth
7,300 ft
55 wells filed one
Completion to plug
6.2 years
median over 48 wells

What the state filed about each well

On the RRC proration schedule
56100.0%
A plug date is filed
5394.6%
BothOn the schedule and plugged. Neither fact cancels the other.
5394.6%
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

0k
2k
4k
6k
8k
10k
12k
15k
20k+

Total depth in feet, 55 of 56 wells. Median 7,300 ft, with the middle half between 6,168 and 7,575 ft; the shallowest is 4,375 ft and the deepest 11,962 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

60s
70s
80s
90s
00s

Last completion by decade, 50 of 56 wells, Dec 1962 – Aug 2004. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Dec 1962 – Aug 2004
50 of 56 wells; 6 filed none
Plug dates filed
Jan 1963 – May 2014
53 of 56 wells; 3 filed none

Last completion to plug: a median of 6.2 years across the 48 wells that filed both dates, with the middle half between 3.6 years and 9.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

56 wells

42-2730072493 D7,300 ftJun 1984Yes
42-273007461147,500 ftJun 1981Yes
42-273007501666,180 ftAug 1979Yes
42-273007578810,100 ftJan 1963Yes
42-27300759487,500 ftOct 1981Yes
42-27380415138Yes
42-27331282310 F9,140 ftAug 2004Oct 2013Yes
42-273007521684,375 ftJan 2002May 2014Yes
42-27331335329 D7,700 ftMar 2001Jun 2011Yes
42-27332049420 D7,650 ftMay 2000Sep 2013Yes
42-273313493349,500 ftMar 1993Jun 1994Yes
42-27331508351 D7,300 ftMar 1993Jul 2013Yes
42-27331315325 D9,915 ftJan 1993Jul 1993Yes
42-27300730211,962 ftSep 1992Oct 1993Yes
42-273018331826,120 ftJul 1992Apr 1993Yes
42-27331316324 D10,101 ftAug 1991Aug 2000Yes
42-273316123789,590 ftDec 1990Sep 1994Yes
42-27300741124 D7,300 ftApr 1987Apr 1993Yes
42-27300727123 D7,300 ftMar 1987May 1995Yes
42-27300733101 D7,500 ftJan 1987Dec 1991Yes
42-273314573449,500 ftMay 1986Jan 1996Yes
42-27332039422 D6,600 ftDec 1985Aug 1993Yes
42-2733166538411,500 ftJun 1985Mar 1993Yes
42-273300602346,135 ftMay 1985Jul 1990Yes
42-27300717137 D6,160 ftMar 1985Dec 1991Yes
42-27300729115 D9,000 ftMar 1985Oct 1991Yes
42-273300472256,120 ftFeb 1985Apr 1993Yes
42-273301652595,040 ftOct 1984Nov 1988Yes
42-27300725131 D7,305 ftAug 1984Dec 1986Yes
42-27330288279 D7,280 ftAug 1984Jan 1990Yes
42-27300738139 D7,290 ftApr 1984Nov 1984Yes
42-27331304319 F6,300 ftJan 1984Apr 1994Yes
42-27300737118 D7,305 ftJan 1984Oct 1986Yes
42-27300744145 D6,175 ftNov 1983Oct 2013Yes
42-2730071496 F9,300 ftJun 1983Jun 1985Yes
42-273300612356,110 ftApr 1983Jul 1989Yes
42-273007181287,305 ftFeb 1983Nov 1988Yes
42-273007201627,411 ftFeb 1983May 1991Yes
42-273303582864,550 ftDec 1982Sep 1993Yes
42-27300735133 D7,300 ftMar 1982Sep 1983Yes
42-27300728134 D7,305 ftJan 1982Dec 1991Yes
42-273300772367,350 ftNov 1981May 1990Yes
42-273018791864,570 ftOct 1981Aug 1983Yes
42-273315013606,800 ftOct 1980Jul 1985Yes
42-27331383340 D7,450 ftOct 1980Dec 1987Yes
42-273007211267,270 ftJan 1980Aug 1983Yes
42-273007391387,290 ftJan 1980Yes
42-27300726148 D4,555 ftJul 1979Jun 1981Yes
42-27300731117 D7,375 ftNov 1977Jun 1981Yes
42-273303242836,075 ftSep 1977May 1982Yes
42-273303812924,650 ftMay 1975Dec 1980Yes
42-273303702875,600 ftDec 1973Mar 1980Yes
42-273303422854,650 ftOct 1973Aug 1979Yes
42-27300748132 D9,000 ftOct 1965Oct 1981Yes
42-273007451537,305 ftMar 1964Apr 1994Yes
42-2730073289 D7,350 ftDec 1962Yes

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 (66)

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

66 months

Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 19970017.582.25$0
Jun 19971,7721,00417.242.26$32,816
May 19979061,58918.972.31$20,855
Apr 19976201,15217.882.08$13,485
Mar 19978521,80218.951.94$19,640
Feb 19971,0583,05020.492.21$28,406
Jan 19971,55231023.483.54$37,538
Dec 19961,75629023.32$40,950
Nov 199690428121.97$19,861
Oct 19961,57039523.31$36,597
Sep 19961,64359022.22$36,507
Aug 19961,2904920.26$26,135
Jul 19961,2269,81619.55$23,968
Jun 19968959,04418.73$16,763
May 19961,56610,91719.43$30,427
Apr 19961,25810,11221.51$27,060
Mar 19967731,02419.38$14,981
Feb 19961,1003,93016.98$18,678
Jan 19961,2691,98417.07$21,662
Dec 19951,2221,27517.19$21,006
Nov 19951,16947916.00$18,704
Oct 19951,0238215.43$15,785
Sep 19951,7201,90016.18$27,830
Aug 19951,0333,75415.92$16,445
Jul 19952,12484415.24$32,370
Jun 19951,96146016.41$32,180
May 19951,27568317.56$22,389
Apr 19952,4131,65117.73$42,782
Mar 19952,6651,29916.44$43,813
Feb 19951,418016.58$23,510
Jan 19951,809015.92$28,799
Dec 19941,954015.03$29,369
Nov 19941,010115.90$16,059
Oct 19942,1641,53815.58$33,715
Sep 19942,0593,97015.29$31,482
Aug 19942,44233916.13$39,389
Jul 19942,39789617.56$42,091
Jun 19942,85134217.09$48,724
May 19941,96137915.88$31,141
Apr 19943,04245314.14$43,014
Mar 19943,3803,32412.46$42,115
Feb 19942,41556912.50$30,188
Jan 19944,16138912.66$52,678
Dec 19933,63536012.33$44,820
Nov 19934,29193814.49$62,177
Oct 19934,12340015.85$65,350
Sep 19934,51919,65615.03$67,921
Aug 19933,54639015.66$55,530
Jul 19934,7153,53415.46$72,894
Jun 19933,6823,38316.79$61,821
May 19934,3564,20817.68$77,014
Apr 19932,9761,69818.05$53,717
Mar 19932,5274,18818.14$45,840
Feb 19932,6423,42517.90$47,292
Jan 19932,9765,04916.93$50,384

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.

Jun 1997 — as filed, then multipliedworked
Oil                1,772 bbl  × $ 17.24 =    $30,549
Casinghead gas     1,004 Mcf  × $  2.26 =     $2,266

────────────────────────────────────────────────────
Month total                                  $32,816

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. 04/O/6998 is the state's own key, not one this site invented.