MAYO, J. W., A/C 1

Operated by HEC PETROLEUM, INC. (P-5 370620) in the TAFT (4300) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 7265District 04Field 88119594NGPA filingOilCasinghead gasSaveExport
Value, all time
$871 k
Jan 1993 – May 2005
Value, last 12 filed months
$0
at the published price for each month
Months reported
149
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 9 leases and 42 wells, and the rule below applies to all of them.

Discovered
1968-09-01
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 2000-01-01.

The Commission's schedule remark for this field reads: ALLOCATION FORMULA EFFECTIVE 01/01/2000.

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.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA3none

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.

StreamBasisVolumeValue
OilDisposition29,637 bbl$698,093
Casinghead gasProduction41,679 Mcf$173,197
Total$871,291

3,203 Mcf of this lease's gas, across 10 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 (25)

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 28.0313, -97.3795. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

28.03099, -97.37951 · 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%
25 of 25 wells
With a plug date
92.0%
23 of 25 wells
Median depth
4,989 ft
24 wells filed one
Completion to plug
16.0 years
median over 19 wells

What the state filed about each well

On the RRC proration schedule
25100.0%
A plug date is filed
2392.0%
BothOn the schedule and plugged. Neither fact cancels the other.
2392.0%
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

Total depth in feet, 24 of 25 wells. Median 4,989 ft, with the middle half between 4,920 and 5,863 ft; the shallowest is 4,360 ft and the deepest 5,919 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, 19 of 25 wells, Jul 1963 – Apr 1992. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jul 1963 – Apr 1992
19 of 25 wells; 6 filed none
Plug dates filed
Jul 1979 – May 2005
23 of 25 wells; 2 filed none

Last completion to plug: a median of 16.0 years across the 19 wells that filed both dates, with the middle half between 8.8 years and 18.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

25 wells

42-40901334204,929 ftOct 1992Yes
42-4090134652 L4,360 ftOct 1992Yes
42-4090135918 UYes
42-4090138057 D5,900 ftYes
42-4090138131 L4,366 ftJun 2002Yes
42-4090393271 D4,450 ftMay 1993Yes
42-4090134762 F5,900 ftApr 1992Sep 2001Yes
42-40932048795,900 ftJan 1992Mar 2004Yes
42-40901378194,929 ftMay 1988Jun 2004Yes
42-40901989254,362 ftJan 1988Oct 1992Yes
42-4090393869 F4,992 ftOct 1987Jun 2002Yes
42-4090393465 F4,995 ftAug 1987Jan 1993Yes
42-4090393667 F4,992 ftJun 1987May 2005Yes
42-40932032785,900 ftJan 1986Mar 2003Yes
42-4090133515 U4,928 ftSep 1985Oct 1992Yes
42-40901382344,923 ftAug 1985Nov 1992Yes
42-40931918734,750 ftOct 1984Jun 2003Yes
42-40931924744,950 ftSep 1984Dec 2003Yes
42-4090393768 D5,712 ftAug 1984Nov 1992Yes
42-4090393566 F4,995 ftJul 1984Aug 2003Yes
42-40901327114,910 ftSep 1983Sep 2002Yes
42-4090393364 F4,985 ftDec 1980Apr 2005Yes
42-4090138461 H5,919 ftApr 1978Jun 2002Yes
42-4090137760 D5,912 ftDec 1977Mar 1992Yes
42-4090138563 H5,850 ftJul 1963Jul 1979Yes

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 (149)

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

149 months

May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 20032828831.146.10$9,318
Feb 20033276933.487.93$11,495
Jan 20032436730.315.58$7,739
Dec 20023018226.914.85$8,498
Nov 20021954824.664.14$5,007
Oct 20021311626.464.23$3,534
Sep 20020027.443.64$0
Aug 200241525.963.16$1,080
Jul 200222694624.583.06$8,452
Jun 200229480023.733.34$9,647
May 200215130324.663.58$4,810
Apr 200227256123.653.51$8,403
Mar 200211637522.003.10$3,716
Feb 200216880718.222.38$4,978
Jan 200231289317.172.38$7,479
Dec 20019541,73616.932.36$20,256
Nov 20017621,71218.072.41$17,888
Oct 200166715819.782.53$13,593
Sep 20011,20127624.262.25$29,758
Aug 200159826524.873.05$15,681
Jul 20011,3241,24823.933.20$35,673
Jun 20011,5501,37524.563.82$43,326
May 20011,3011,38625.524.31$39,171
Apr 20011,0112,79324.685.34$39,853
Mar 20019992,10924.545.38$35,854
Feb 20019993,06527.755.77$45,398
Jan 20010027.478.40$0
Dec 20001,5654,17726.889.12$80,172
Nov 20001,2542,03532.215.66$51,905
Oct 20001,3482,00231.235.15$52,399
Sep 20001,5602,18131.875.19$61,029
Aug 200041921029.644.54$13,373
Jul 200040915128.534.09$12,286
Jun 200047015129.304.40$14,435
May 200036913027.263.68$10,537
Apr 200046015724.513.12$11,764
Mar 2000844628.422.86$2,519
Feb 2000879027.622.73$2,648
Jan 200010313425.272.48$2,935
Dec 19998510224.282.42$2,311
Nov 1999709623.192.43$1,857
Oct 1999999920.982.80$2,355
Sep 19997110621.752.62$1,822
Aug 19998114119.262.88$1,966
Jul 19998212717.892.37$1,768
Jun 19997715115.942.36$1,584
May 19997616715.792.32$1,588
Apr 199910117815.102.21$1,918
Mar 19997618912.471.84$1,295
Feb 1999991379.981.82$1,237
Jan 199911416010.381.90$1,487
Dec 19981842599.201.77$2,152
Nov 199818325710.892.19$2,555
Oct 199816229512.421.97$2,593
Sep 199819037812.592.08$3,179
Aug 199821549411.301.91$3,372
Jul 199829261711.742.24$4,808
Jun 199830046111.242.24$4,403
May 199818655412.622.21$3,570
Apr 199824086113.042.51$5,287
Mar 19988012.802.31$102
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 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19960020.26$0
Jul 19960019.55$0
Jun 19960018.73$0
May 19960019.43$0
Apr 19960021.51$0
Mar 19960019.38$0
Feb 19960016.98$0
Jan 19960017.07$0
Dec 19950017.19$0
Nov 19950016.00$0
Oct 19950015.43$0
Sep 19950016.18$0
Aug 19950015.92$0
Jul 19950015.24$0
Jun 19950016.41$0
May 19950017.56$0
Apr 19950017.73$0
Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940017.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19940012.46$0
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930012.33$0
Nov 19936014.49$87
Oct 199361415.85$967
Sep 199312717815.03$1,909
Aug 199311010715.66$1,723
Jul 199319820515.46$3,061
Jun 199332021916.79$5,373
May 199370627917.68$12,482
Apr 199382910818.05$14,963
Mar 199379868318.14$14,476
Feb 199356889417.90$10,167
Jan 199337052616.93$6,264

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.

Mar 2003 — as filed, then multipliedworked
Oil                  282 bbl  × $ 31.14 =     $8,781
Casinghead gas        88 Mcf  × $  6.10 =       $536

────────────────────────────────────────────────────
Month total                                   $9,318

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/7265 is the state's own key, not one this site invented.