KING RANCH ALAZAN

Name: KING RANCH ALAZAN lease production and value, Jan 1993 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

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

Oil lease lease 6999District 04Field 01097016NGPA filingOilCasinghead gasSave Export

Value, all time

$4.4 M

Jan 1993 – Jun 1998

Value, last 12 filed months

at the published price for each month

Months reported

no gaps in the span

Streams

oil, casinghead gas

The ALAZAN, NORTH (ALL ZONES) field

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 1 leases and 128 wells, and the rule below applies to all of them.

Discovered

1967-08-01

as the register files it

Field class

Oil

the register's own label

Between wells

—

no field rule filed

From a lease line

—

no field rule filed

The Commission's schedule remark for this field reads: “CONSOL. TO ALAZAN, N. (FRIO CONS,) EFF. 7/1/97 PER DKT 04-0216016.”

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.

Programme	Filings	With an approval date	Dated	Docket
NGPA	4	none	—	—

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.

Stream	Basis	Volume	Value
Oil	Disposition	258,729 bbl	$4,390,548
Casinghead gas	Production	118,037 Mcf	$18,504
Total			$4,409,052

110,049 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 (128)

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 27.4582, -97.5882. A lease has no coordinate of its own — that point is the mean of its wells, and they span 3.8 miles.

27.45751, -97.58335 · centre of the wells drawn, derived⌘ or Ctrl + scroll to zoom

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%

128 of 128 wells

With a plug date

98.4%

126 of 128 wells

Median depth

8,047 ft

126 wells filed one

Completion to plug

12.9 years

median over 103 wells

What the state filed about each well

On the RRC proration schedule

128100.0%

A plug date is filed

12698.4%

BothOn the schedule and plugged. Neither fact cancels the other.

12698.4%

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

Total depth in feet, 126 of 128 wells. Median 8,047 ft, with the middle half between 7,946 and 8,963 ft; the shallowest is 5,465 ft and the deepest 14,000 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, 103 of 128 wells, May 1959 – Aug 2013. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed

May 1959 – Aug 2013

103 of 128 wells; 25 filed none

Plug dates filed

Nov 1978 – Oct 2024

126 of 128 wells; 2 filed none

Last completion to plug: a median of 12.9 years across the 103 wells that filed both dates, with the middle half between 6.0 years and 20.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

128 wells


42-27300601	105	8,950 ft	—	Jun 1984	Yes
42-27300608	102 D	8,594 ft	—	Apr 1985	Yes
42-27300610	51 D	7,350 ft	—	Dec 1990	Yes
42-27300615	85 D	9,010 ft	—	Feb 1993	Yes
42-27300623	144 H	5,760 ft	—	Nov 1978	Yes
42-27300624	21 H	8,965 ft	—	May 1984	Yes
42-27300625	127 D	7,975 ft	—	Sep 1986	Yes
42-27300626	30 D	8,937 ft	—	May 1979	Yes
42-27300627	38 D	9,000 ft	—	May 1979	Yes
42-27300637	94 D	5,700 ft	—	Oct 1983	Yes
42-27300640	59	8,028 ft	—	May 2008	Yes
42-27300641	52 D	7,352 ft	—	Nov 1993	Yes
42-27300684	55 C	7,650 ft	—	Jul 1982	Yes
42-27300691	91 D	9,004 ft	—	Aug 1984	Yes
42-27300693	7	9,020 ft	—	May 1992	Yes
42-27300704	83 D	9,050 ft	—	Jun 1984	Yes
42-27300705	109 D	7,975 ft	—	Aug 1990	Yes
42-27300706	37 D	9,000 ft	—	Sep 1991	Yes
42-27300708	87 D	—	—	—	Yes
42-27330042	224	7,950 ft	—	Jan 1991	Yes
42-27330071	240 D	7,950 ft	—	Apr 1991	Yes
42-27381101	110 D	—	—	—	Yes
42-27381106	156	5,750 ft	—	Nov 1978	Yes
42-27331474	354	7,345 ft	Aug 2013	Oct 2024	Yes
42-27331570	371	7,290 ft	Jan 2009	Jul 2016	Yes
42-27330541	302	8,950 ft	Apr 2006	Aug 2008	Yes
42-27330542	307	8,920 ft	Feb 2006	Jun 2008	Yes
42-27331279	314 D	8,525 ft	Jan 2004	Sep 2008	Yes
42-27300674	92	9,635 ft	Dec 2003	Feb 2009	Yes
42-27331278	315 D	7,877 ft	Nov 2002	Aug 2008	Yes
42-27330183	262 D	8,930 ft	May 1999	Feb 2008	Yes
42-27300677	28 F	8,920 ft	May 1999	Jul 2010	Yes
42-27300604	34 D	9,000 ft	Sep 1996	Jul 2000	Yes
42-27300665	74 D	8,064 ft	Jun 1996	Jul 2007	Yes
42-27300672	25 D	8,959 ft	Feb 1994	Nov 2008	Yes
42-27330304	280 F	8,905 ft	Dec 1992	Oct 1993	Yes
42-27300676	76 D	8,026 ft	Jul 1992	Sep 1993	Yes
42-27300650	19 H	8,960 ft	Jul 1992	Dec 1995	Yes
42-27300675	106 D	7,950 ft	Jul 1992	Dec 1995	Yes
42-27300651	113 D	8,900 ft	Jul 1992	Nov 1995	Yes
42-27300634	58 E	8,050 ft	Nov 1991	Mar 1992	Yes
42-27330055	227	7,950 ft	Jan 1991	Sep 1992	Yes
42-27300666	73 D	8,043 ft	Jan 1991	Feb 1994	Yes
42-27300696	18 F	8,977 ft	Oct 1990	Oct 1991	Yes
42-27300686	77 D	8,050 ft	Sep 1990	Oct 1991	Yes
42-27300646	60 D	8,050 ft	Jul 1990	Nov 1991	Yes
42-27300692	31 D	8,950 ft	Apr 1990	Dec 1991	Yes
42-27330026	219 D	7,990 ft	Feb 1990	Jun 1991	Yes
42-27300661	72 F	8,050 ft	Jan 1990	Jun 1991	Yes
42-27330101	249	7,950 ft	Jan 1990	Jul 2008	Yes
42-27300663	71 D	8,050 ft	Aug 1989	Jan 1991	Yes
42-27300659	57	8,041 ft	Jun 1989	Jul 2000	Yes
42-27300662	26 F	8,920 ft	Jun 1989	Dec 2004	Yes
42-27330164	256 D	7,983 ft	Sep 1988	Sep 2007	Yes
42-27331845	407	9,840 ft	Mar 1986	Jul 1992	Yes
42-27331567	372	7,262 ft	Feb 1986	Oct 2024	Yes
42-27331557	366	9,440 ft	Oct 1985	Mar 1996	Yes
42-27301834	183 D	7,950 ft	Oct 1985	Dec 1991	Yes
42-27300649	104 D	7,650 ft	Sep 1985	Jan 1996	Yes
42-27330089	246 D	7,970 ft	Aug 1985	Aug 2013	Yes
42-27300636	70	7,300 ft	Jun 1985	Aug 1990	Yes
42-27331502	361	6,800 ft	May 1985	Aug 1990	Yes
42-27300667	84 D	7,350 ft	Apr 1985	Dec 1990	Yes
42-27300694	78 F	8,050 ft	Apr 1985	Jul 1994	Yes
42-27331839	406	7,000 ft	Mar 1984	Apr 2009	Yes
42-27300657	63 D	8,050 ft	Oct 1983	Jan 2009	Yes
42-27300653	64 D	7,650 ft	Oct 1983	Oct 1992	Yes
42-27330368	290	7,648 ft	Jun 1982	Jul 1998	Yes
42-27300603	42 F	9,828 ft	Jun 1982	Jan 1992	Yes
42-27330278	273	7,334 ft	Jan 1982	Feb 1991	Yes
42-27300678	103 D	7,975 ft	Dec 1981	Sep 1984	Yes
42-27300681	143	11,649 ft	Nov 1981	Aug 1992	Yes
42-27330083	245	14,000 ft	Apr 1981	Mar 1994	Yes
42-27301877	189	9,849 ft	Jan 1981	Jul 1992	Yes
42-27300648	61 F	8,050 ft	Nov 1980	Sep 1991	Yes
42-27300687	44	10,000 ft	Sep 1980	Dec 1992	Yes
42-27330068	238 D	8,900 ft	May 1980	Jan 1990	Yes
42-27300652	12	8,967 ft	Apr 1980	Oct 1992	Yes
42-27330043	223	7,950 ft	Nov 1979	Mar 1993	Yes
42-27330019	214 D	7,945 ft	Jul 1979	Sep 1984	Yes
42-27330082	244 D	7,950 ft	Jan 1979	Jul 1990	Yes
42-27300685	62 D	8,050 ft	Nov 1978	Oct 1991	Yes
42-27300658	56	7,650 ft	Feb 1978	Aug 1985	Yes
42-27300683	136 D	7,980 ft	Feb 1977	May 1990	Yes
42-27300697	23 D	8,974 ft	Dec 1976	Dec 1991	Yes
42-27330081	243	7,310 ft	Sep 1976	Sep 1992	Yes
42-27300638	15 H	8,975 ft	Oct 1975	Oct 1991	Yes
42-27300644	16 D	8,975 ft	May 1975	Feb 1993	Yes
42-27330027	218 F	7,980 ft	Dec 1974	Feb 1993	Yes
42-27300695	41 F	10,000 ft	Oct 1974	Sep 1985	Yes
42-27330157	258	7,980 ft	Jul 1974	Aug 1993	Yes
42-27330072	239	7,330 ft	Nov 1973	Sep 1990	Yes
42-27330051	229	7,965 ft	Sep 1973	Feb 1993	Yes
42-27300654	22 D	8,970 ft	Aug 1973	Oct 1991	Yes
42-27300670	99	9,000 ft	Dec 1972	Aug 1985	Yes
42-27330267	272	7,335 ft	Jul 1972	Mar 1993	Yes
42-27330188	261 F	8,900 ft	Sep 1971	Feb 1991	Yes
42-27330184	264	7,325 ft	Aug 1971	Sep 1992	Yes
42-27330158	257 D	7,980 ft	Jun 1971	May 1994	Yes
42-27300669	29 F	8,940 ft	Apr 1971	Nov 1985	Yes
42-27300609	32 D	8,955 ft	Jan 1971	Nov 1991	Yes
42-27300605	69 D	7,626 ft	Jan 1971	Dec 1989	Yes
42-27300635	112 F	7,975 ft	Oct 1970	Aug 1991	Yes
42-27330102	247	7,320 ft	Jun 1970	Sep 1992	Yes
42-27300698	107 D	8,905 ft	Jun 1970	Dec 1985	Yes
42-27330079	241	7,350 ft	May 1970	Sep 1990	Yes
42-27330094	248	7,300 ft	May 1970	Aug 1991	Yes
42-27330080	242	7,330 ft	May 1970	Oct 1981	Yes
42-27330066	237 D	7,955 ft	Apr 1970	Sep 1992	Yes
42-27330063	233	7,950 ft	Mar 1970	Dec 1991	Yes
42-27302109	231	8,043 ft	Feb 1970	Nov 1989	Yes
42-27330056	228	7,950 ft	Feb 1970	Aug 1992	Yes
42-27330036	220 D	8,050 ft	Dec 1969	Oct 1993	Yes
42-27330021	215	7,300 ft	Jun 1969	Oct 1992	Yes
42-27300673	6 F	8,941 ft	Jun 1968	Jun 1990	Yes
42-27301876	190	9,600 ft	Jul 1966	Aug 2024	Yes
42-27300643	111	7,975 ft	May 1966	Jul 1990	Yes
42-27300599	65 F	8,014 ft	Apr 1966	Sep 2013	Yes
42-27300707	81	9,700 ft	Nov 1963	Aug 1992	Yes
42-27300680	90 D	9,000 ft	Mar 1963	Aug 1985	Yes
42-27300639	98	5,465 ft	Mar 1963	May 1979	Yes
42-27300671	35 D	12,000 ft	1963	Apr 1982	Yes
42-27300656	8	9,008 ft	Nov 1962	Aug 1992	Yes
42-27300703	79 F	8,009 ft	Oct 1962	Jun 1990	Yes
42-27300645	53 D	7,650 ft	Sep 1962	Apr 1991	Yes
42-27300655	47 C	10,398 ft	1962	Sep 1989	Yes
42-27300688	24 H	8,980 ft	Mar 1960	Oct 1992	Yes
42-27300642	11 C	8,964 ft	May 1959	Aug 1984	Yes

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 1998	0	0	11.24	2.24	$0
May 1998	0	0	12.62	2.21	$0
Apr 1998	0	0	13.04	2.51	$0
Mar 1998	0	0	12.80	2.31	$0
Feb 1998	0	0	13.95	2.30	$0
Jan 1998	0	0	14.70	2.15	$0
Dec 1997	0	0	16.32	2.41	$0
Nov 1997	0	0	18.19	3.09	$0
Oct 1997	0	0	19.25	3.15	$0
Sep 1997	0	0	17.74	2.95	$0
Aug 1997	0	0	17.86	2.55	$0
Jul 1997	0	0	17.58	2.25	$0
Jun 1997	5,714	1,542	17.24	2.26	$101,990
May 1997	4,479	961	18.97	2.31	$87,185
Apr 1997	3,683	738	17.88	2.08	$67,389
Mar 1997	3,689	779	18.95	1.94	$71,417
Feb 1997	2,998	3,215	20.49	2.21	$68,521
Jan 1997	3,961	753	23.48	3.54	$95,670
Dec 1996	4,994	996	23.32	—	$116,460
Nov 1996	2,776	790	21.97	—	$60,989
Oct 1996	4,285	564	23.31	—	$99,883
Sep 1996	4,170	341	22.22	—	$92,657
Aug 1996	3,513	1,813	20.26	—	$71,173
Jul 1996	3,418	355	19.55	—	$66,822
Jun 1996	3,183	964	18.73	—	$59,618
May 1996	2,582	1,087	19.43	—	$50,168
Apr 1996	3,387	1,671	21.51	—	$72,854
Mar 1996	4,287	8,177	19.38	—	$83,082
Feb 1996	4,215	482	16.98	—	$71,571
Jan 1996	4,881	5,846	17.07	—	$83,319
Dec 1995	4,915	537	17.19	—	$84,489
Nov 1995	5,054	683	16.00	—	$80,864
Oct 1995	5,819	927	15.43	—	$89,787
Sep 1995	4,182	2,390	16.18	—	$67,665
Aug 1995	5,587	1,943	15.92	—	$88,945
Jul 1995	2,900	945	15.24	—	$44,196
Jun 1995	3,114	418	16.41	—	$51,101
May 1995	2,349	1,477	17.56	—	$41,248
Apr 1995	3,509	458	17.73	—	$62,215
Mar 1995	3,880	511	16.44	—	$63,787
Feb 1995	2,394	2,161	16.58	—	$39,693
Jan 1995	3,593	1,725	15.92	—	$57,201
Dec 1994	3,689	556	15.03	—	$55,446
Nov 1994	4,269	34	15.90	—	$67,877
Oct 1994	3,856	98	15.58	—	$60,076
Sep 1994	4,485	1	15.29	—	$68,576
Aug 1994	5,765	4,129	16.13	—	$92,989
Jul 1994	6,032	382	17.56	—	$105,922
Jun 1994	5,549	257	17.09	—	$94,832
May 1994	6,202	218	15.88	—	$98,488
Apr 1994	5,266	608	14.14	—	$74,461
Mar 1994	6,424	4,148	12.46	—	$80,043
Feb 1994	5,423	10,052	12.50	—	$67,788
Jan 1994	5,434	6	12.66	—	$68,794
Dec 1993	5,727	1,383	12.33	—	$70,614
Nov 1993	6,518	3,218	14.49	—	$94,446
Oct 1993	6,519	10,016	15.85	—	$103,326
Sep 1993	6,306	5,250	15.03	—	$94,779
Aug 1993	5,912	4,040	15.66	—	$92,582
Jul 1993	6,475	2,529	15.46	—	$100,104
Jun 1993	7,270	2,263	16.79	—	$122,063
May 1993	6,478	3,605	17.68	—	$114,531
Apr 1993	6,651	7,047	18.05	—	$120,051
Mar 1993	7,164	5,220	18.14	—	$129,955
Feb 1993	5,824	5,817	17.90	—	$104,250
Jan 1993	7,980	1,911	16.93	—	$135,101

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                5,714 bbl  × $ 17.24 =    $98,509
Casinghead gas     1,542 Mcf  × $  2.26 =     $3,481

────────────────────────────────────────────────────
Month total                                 $101,990

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/6999 is the state's own key, not one this site invented.