TUNSTILL OIL & LAND CO.

Operated by MAYJAC I, LLC (P-5 536431) in the MATTHEWS (LOWER CHERRY CANYON) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 28952District 08Field 58327500NGPA filingOilCasinghead gasSaveExport
Value, all time
$894 k
Jan 1993 – Aug 2008
Value, last 12 filed months
$16 k
at the published price for each month
Months reported
188
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 19 leases and 35 wells, and the rule below applies to all of them.

Discovered
1984-05-18
as the register files it
Field class
Oil
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 20 acres. The field rule took effect on 1999-04-01.

The Commission's schedule remark for this field reads: OPTIONAL ACRES 20, 1500 DIAG.

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
NGPA4none

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
OilDisposition33,551 bbl$794,957
Casinghead gasProduction43,497 Mcf$99,050
Total$894,007

13,774 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 (3)

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 31.8786, -103.9015. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

31.87860, -103.90134 · 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%
3 of 3 wells
With a plug date
100.0%
3 of 3 wells
Median depth
4,550 ft
3 wells filed one
Completion to plug
35.6 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
3100.0%
A plug date is filed
3100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
3100.0%
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

Between 4,511 and 5,000 ft, median 4,550 ft, over the 3 wells that filed a depth.

Completions filed
May 1984 – Apr 1985
3 of 3 wells
Plug dates filed
Mar 2020 – Apr 2020
3 of 3 wells

Last completion to plug: a median of 35.6 years across the 3 wells that filed both dates, with the middle half between 35.3 years and 35.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-3893155634,550 ftApr 1985Apr 2020Yes
42-3893151724,511 ftAug 1984Mar 2020Yes
42-3893149615,000 ftMay 1984Mar 2020Yes

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 (188)

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

188 months

Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 2007208075.846.24$15,775
Aug 200792069.066.39$6,354
Jul 20070070.906.39$0
Jun 2007175062.007.55$10,850
May 200788058.747.85$5,169
Apr 20070059.617.81$0
Mar 2007176056.927.30$10,018
Feb 2007172055.108.22$9,477
Jan 20070050.306.73$0
Dec 200687056.656.92$4,929
Nov 200687054.207.62$4,715
Oct 200691054.906.01$4,996
Sep 2006179060.085.04$10,754
Aug 200689068.717.34$6,115
Jul 200686069.376.34$5,966
Jun 20060066.286.38$0
May 200690066.016.42$5,941
Apr 200688064.397.36$5,666
Mar 20060056.707.08$0
Feb 200688057.597.75$5,068
Jan 2006178060.598.93$10,785
Dec 200585054.9413.42$4,670
Nov 200588054.6910.59$4,813
Oct 200586058.3413.80$5,017
Sep 2005179061.4512.08$11,000
Aug 200589061.519.80$5,474
Jul 200587055.697.84$4,845
Jun 200589052.337.38$4,657
May 2005174045.226.65$7,868
Apr 200588749.207.36$4,381
Mar 20059024950.377.15$6,315
Feb 2005899845.226.31$4,643
Jan 200518124843.166.32$9,380
Dec 20049016639.866.75$4,708
Nov 20049014045.286.33$4,961
Oct 2004906249.706.52$4,877
Sep 20041761943.245.28$7,711
Aug 200489142.375.55$3,776
Jul 2004177238.286.08$6,788
Jun 200488036.106.43$3,177
May 20041794537.486.49$7,001
Apr 20040534.475.86$29
Mar 20041845534.365.53$6,626
Feb 200493732.455.51$3,056
Jan 2004947332.036.30$3,471
Dec 2003969330.266.30$3,491
Nov 200318417728.804.60$6,113
Oct 20039721228.174.76$3,742
Sep 200318324826.314.75$5,993
Aug 20039129529.765.13$4,221
Jul 200318622829.415.17$6,649
Jun 20038826628.565.98$4,105
May 20039420726.595.97$3,736
Apr 200318628126.675.41$6,480
Mar 200318834731.146.10$7,970
Feb 20039116333.487.93$4,339
Jan 200320033330.315.58$7,921
Dec 200220038826.914.85$7,265
Nov 20029641324.664.14$4,076
Oct 200219739026.464.23$6,862
Sep 200219733827.443.64$6,634
Aug 2002020825.963.16$658
Jul 200219343324.583.06$6,070
Jun 200219734723.733.34$5,833
May 20029725124.663.58$3,292
Apr 20029718723.653.51$2,951
Mar 20029535322.003.10$3,185
Feb 200219719118.222.38$4,043
Jan 20029432517.172.38$2,386
Dec 200118524916.932.36$3,721
Nov 200119323318.072.41$4,048
Oct 20019324319.782.53$2,454
Sep 200118620324.262.25$4,969
Aug 20011826824.873.05$4,734
Jul 200128131323.933.20$7,725
Jun 200119326824.563.82$5,765
May 2001029225.524.31$1,258
Apr 200118727024.685.34$6,056
Mar 200118727324.545.38$6,057
Feb 200119328627.755.77$7,005
Jan 200118930627.478.40$7,762
Dec 20009911026.889.12$3,665
Nov 200018217532.215.66$6,852
Oct 200018919131.235.15$6,885
Sep 200018233731.875.19$7,548
Aug 200018323329.644.54$6,482
Jul 200018616528.534.09$5,981
Jun 2000187029.304.40$5,479
May 2000180027.263.68$4,907
Apr 200091024.513.12$2,230
Mar 2000189028.422.86$5,371
Feb 200018916227.622.73$5,662
Jan 20009229325.272.48$3,052
Dec 199926127824.282.42$7,011
Nov 19999639323.192.43$3,183
Oct 199918444520.982.80$5,108
Sep 199918544121.752.62$5,179
Aug 199917838719.262.88$4,541
Jul 199918644217.892.37$4,376
Jun 199917739615.942.36$3,757
May 199918238915.792.32$3,777
Apr 199917943815.102.21$3,670
Mar 199917552312.471.84$3,144
Feb 19992782749.981.82$3,273
Jan 199918517910.381.90$2,260
Dec 1998912879.201.77$1,346
Nov 199818928310.892.19$2,677
Oct 199818028712.421.97$2,801
Sep 199818315512.592.08$2,627
Aug 199818446311.301.91$2,962
Jul 199818137311.742.24$2,959
Jun 199818010711.242.24$2,263
May 199827329712.622.21$4,101
Apr 199819013913.042.51$2,826
Mar 199817934812.802.31$3,095
Feb 19981761,18713.952.30$5,184
Jan 199828169214.702.15$5,622
Dec 199717583016.322.41$4,857
Nov 199726081318.193.09$7,240
Oct 199718186819.253.15$6,218
Sep 199727390217.742.95$7,508
Aug 199727239417.862.55$5,864
Jul 199718075217.582.25$4,854
Jun 199726850617.242.26$5,762
May 199736277318.972.31$8,652
Apr 199718372117.882.08$4,774
Mar 199727068018.951.94$6,435
Feb 199718323520.492.21$4,268
Jan 199718152523.483.54$6,108
Dec 199627546023.32$6,413
Nov 199634540521.97$7,580
Oct 199619064823.31$4,429
Sep 19963602,31222.22$7,999
Aug 19969118120.26$1,844
Jul 199618227519.55$3,558
Jun 199636140418.73$6,762
May 199626939819.43$5,227
Apr 199618020621.51$3,872
Mar 19963619419.38$6,996
Feb 199618720316.98$3,175
Jan 199627819117.07$4,745
Dec 199518615017.19$3,197
Nov 199537315916.00$5,968
Oct 199527717815.43$4,274
Sep 199518222316.18$2,945
Aug 199527046815.92$4,298
Jul 199536746315.24$5,593
Jun 199527723916.41$4,546
May 199536628817.56$6,427
Apr 19952768617.73$4,893
Mar 199537026516.44$6,083
Feb 199527221316.58$4,510
Jan 19951847815.92$2,929
Dec 19942798715.03$4,193
Nov 19942745715.90$4,357
Oct 19942739015.58$4,253
Sep 199436510315.29$5,581
Aug 199427225516.13$4,387
Jul 199435435217.56$6,216
Jun 199427222917.09$4,648
May 199436624415.88$5,812
Apr 199427416414.14$3,874
Mar 199436922112.46$4,598
Feb 199435711212.50$4,463
Jan 19942913712.66$3,684
Dec 19932408712.33$2,959
Nov 199339826714.49$5,767
Oct 199347150215.85$7,465
Sep 199337865015.03$5,681
Aug 199337249315.66$5,826
Jul 199338053515.46$5,875
Jun 199343926916.79$7,371
May 199339622717.68$7,001
Apr 19932849018.05$5,126
Mar 19932171418.14$3,936
Feb 19931314717.90$2,345
Jan 19932685516.93$4,537

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.

Sep 2007 — as filed, then multipliedworked
Oil                  208 bbl  × $ 75.84 =    $15,775
Casinghead gas         0 Mcf  × $  6.24 =         $0

────────────────────────────────────────────────────
Month total                                  $15,775

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. 08/O/28952 is the state's own key, not one this site invented.