SAWYER

Operated by CORE PETRO, LLC (P-5 178386) in the ATKINSON, W. (SAN ANGELO) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 9591District 7CField 04279500OilCasinghead gasSaveExport
Value, all time
$1.3 M
Jan 1993 – May 2026
Value, last 12 filed months
$0
at the published price for each month
Months reported
401
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 25 leases and 216 wells, and the rule below applies to all of them.

Discovered
1965-03-19
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 10 acres.

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
OilDisposition31,432 bbl$1,286,326
Casinghead gasProduction38 Mcf$0
Total$1,286,326

38 Mcf of this lease's gas, across 38 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 (7)

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 31.2260, -100.6634. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

31.22637, -100.66418 · 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
14.3%
1 of 7 wells
With a plug date
28.6%
2 of 7 wells
Median depth
1,020 ft
7 wells filed one
Completion to plug
2.3 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
114.3%
A plug date is filed
228.6%
BothOn the schedule and plugged. Neither fact cancels the other.
114.3%
NeitherNo plug date, and not on the schedule.
571.4%

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 975 and 4,000 ft, median 1,020 ft, over the 7 wells that filed a depth.

Completions filed
May 1982 – Jan 2005
6 of 7 wells; 1 filed none
Plug dates filed
Jul 1985 – Oct 1989
2 of 7 wells; 5 filed none

Last completion to plug: a median of 2.3 years across the 1 well that filed both dates, with the middle half between 2.3 years and 2.3 years. A further 1 well is excluded, because the last completion the Commission holds for it is dated after the plug date. Both dates are the latest of their kind on the wellbore record and they are filed separately, so the two need not run in order. The gap is the distance between two filed dates — it is not a statement of how long the well produced.

7 wells

42-4513120751,000 ft
42-4513120841,020 ftJan 2005
42-45100774101,250 ftSep 1990Oct 1989
42-451318949975 ftJul 1988
42-4513133861,020 ftDec 1983
42-4513112634,000 ftApr 1983Jul 1985Yes
42-4513095021,040 ftMay 1982

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 (401)

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

401 months

May 202600106.413.05$0
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 202579062.363.54$4,926
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 202454071.372.28$3,854
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 202449079.932.15$3,917
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 202456080.301.55$4,497
Feb 20240076.091.78$0
Jan 202492073.023.30$6,718
Dec 20230071.262.61$0
Nov 202346077.892.81$3,583
Oct 20230085.443.09$0
Sep 2023104089.042.74$9,260
Aug 202384080.522.67$6,764
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 2021172077.435.24$13,318
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 202131069.493.38$2,154
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 201919055.302.75$1,051
Oct 20190053.472.42$0
Sep 201926055.052.66$1,431
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 201932052.782.49$1,689
May 20190058.482.74$0
Apr 201990062.632.75$5,637
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 2018101046.594.19$4,706
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 201823065.142.93$1,498
Jun 201887060.183.08$5,236
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 201835061.782.77$2,162
Jan 201863062.874.01$3,961
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 201761047.523.09$2,899
Aug 20170045.373.00$0
Jul 2017125043.873.09$5,484
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 2017136050.452.95$6,861
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 201615041.553.10$623
Aug 201677041.442.92$3,191
Jul 20160041.622.92$0
Jun 201618045.352.69$816
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 201627033.011.79$891
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 201596032.362.00$3,107
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 2015167040.162.87$6,707
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 2015172049.822.71$8,569
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 2014189054.693.59$10,336
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 2014185096.564.18$17,864
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 2014168090.404.86$15,187
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 20131760104.113.72$18,323
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 2013181094.403.93$17,086
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 2013182091.233.42$16,604
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 2012174094.672.92$16,473
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 2012183091.612.49$16,765
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 2012980101.102.57$9,908
Jan 20120098.092.73$0
Dec 201188096.873.24$8,525
Nov 20110095.723.31$0
Oct 2011180084.983.65$15,296
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 2011182094.144.52$17,133
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 201188096.364.06$8,480
Feb 20110085.644.18$0
Jan 2011102086.504.59$8,823
Dec 201076085.734.35$6,515
Nov 20100080.843.80$0
Oct 2010179078.103.51$13,980
Sep 20100072.633.98$0
Aug 2010181073.684.42$13,336
Jul 20100072.554.74$0
Jun 2010101070.364.91$7,106
May 201099071.124.24$7,041
Apr 201089081.694.12$7,270
Mar 201061078.394.39$4,782
Feb 201070073.585.44$5,151
Jan 2010119074.365.96$8,849
Dec 2009133071.445.48$9,502
Nov 2009130074.593.75$9,697
Oct 200926072.544.11$1,886
Sep 2009110065.543.06$7,209
Aug 2009151067.423.22$10,180
Jul 2009125061.133.46$7,641
Jun 200995066.163.90$6,285
May 2009188054.743.93$10,291
Apr 20090046.773.59$0
Mar 2009169042.144.06$7,122
Feb 2009185032.814.63$6,070
Jan 200979035.865.37$2,833
Dec 200889037.105.98$3,302
Nov 2008128055.496.86$7,103
Oct 2008191075.246.92$14,371
Sep 2008730101.767.88$7,428
Aug 20081150114.228.48$13,135
Jul 20081500131.0811.39$19,662
Jun 20081790131.3313.03$23,508
May 20081040123.1711.57$12,810
Apr 2008450110.3110.45$4,964
Mar 20081870101.909.66$19,055
Feb 20080092.538.77$0
Jan 2008193090.388.21$17,443
Dec 2007184088.337.30$16,253
Nov 20070091.677.29$0
Oct 2007187082.856.92$15,493
Sep 2007191075.846.24$14,485
Aug 20070069.066.39$0
Jul 2007180070.906.39$12,762
Jun 2007183062.007.55$11,346
May 2007181058.747.85$10,632
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 2007184050.306.73$9,255
Dec 2006107056.656.92$6,062
Nov 20060054.207.62$0
Oct 2006177054.906.01$9,717
Sep 200685060.085.04$5,107
Aug 2006188068.717.34$12,917
Jul 20060069.376.34$0
Jun 2006181066.286.38$11,997
May 2006192066.016.42$12,674
Apr 20060064.397.36$0
Mar 2006121056.707.08$6,861
Feb 20060057.597.75$0
Jan 2006184060.598.93$11,149
Dec 200598054.9413.42$5,384
Nov 2005193054.6910.59$10,555
Oct 2005116058.3413.80$6,767
Sep 2005182061.4512.08$11,184
Aug 2005114061.519.80$7,012
Jul 2005182055.697.84$10,136
Jun 2005183052.337.38$9,576
May 20050045.226.65$0
Apr 2005157049.207.36$7,724
Mar 2005159050.377.15$8,009
Feb 2005143045.226.31$6,466
Jan 2005131043.166.32$5,654
Dec 20040039.866.75$0
Nov 2004122045.286.33$5,524
Oct 2004191049.706.52$9,493
Sep 20040043.245.28$0
Aug 2004135042.375.55$5,720
Jul 2004183038.286.08$7,005
Jun 20040036.106.43$0
May 2004107037.486.49$4,010
Apr 2004115034.475.86$3,964
Mar 2004179034.365.53$6,150
Feb 20040032.455.51$0
Jan 2004125032.036.30$4,004
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 2003109028.174.76$3,071
Sep 200387026.314.75$2,289
Aug 2003151029.765.13$4,494
Jul 2003257029.415.17$7,558
Jun 20030028.565.98$0
May 2003166026.595.97$4,414
Apr 2003182026.675.41$4,854
Mar 2003194031.146.10$6,041
Feb 20030033.487.93$0
Jan 2003176030.315.58$5,335
Dec 2002261026.914.85$7,024
Nov 2002188024.664.14$4,636
Oct 20020026.464.23$0
Sep 2002176027.443.64$4,829
Aug 2002134025.963.16$3,479
Jul 2002179024.583.06$4,400
Jun 2002183023.733.34$4,343
May 2002141024.663.58$3,477
Apr 2002159023.653.51$3,760
Mar 2002226022.003.10$4,972
Feb 2002174018.222.38$3,170
Jan 2002183017.172.38$3,142
Dec 2001256016.932.36$4,334
Nov 20010018.072.41$0
Oct 2001179019.782.53$3,541
Sep 2001176024.262.25$4,270
Aug 2001181024.873.05$4,501
Jul 2001184023.933.20$4,403
Jun 2001180024.563.82$4,421
May 2001181025.524.31$4,619
Apr 2001181024.685.34$4,467
Mar 2001191024.545.38$4,687
Feb 2001184027.755.77$5,106
Jan 2001283027.478.40$7,774
Dec 2000186026.889.12$5,000
Nov 2000179032.215.66$5,766
Oct 2000172031.235.15$5,372
Sep 2000173031.875.19$5,514
Aug 2000234029.644.54$6,936
Jul 2000166028.534.09$4,736
Jun 2000248029.304.40$7,266
May 2000135027.263.68$3,680
Apr 2000173024.513.12$4,240
Mar 2000173028.422.86$4,917
Feb 20000027.622.73$0
Jan 2000174025.272.48$4,397
Dec 19990024.282.42$0
Nov 1999162023.192.43$3,757
Oct 19990020.982.80$0
Sep 1999169021.752.62$3,676
Aug 19990019.262.88$0
Jul 1999118017.892.37$2,111
Jun 1999100015.942.36$1,594
May 1999140015.792.32$2,211
Apr 19990015.102.21$0
Mar 1999159012.471.84$1,983
Feb 1999009.981.82$0
Jan 1999172010.381.90$1,785
Dec 1998009.201.77$0
Nov 1998168010.892.19$1,830
Oct 1998177012.421.97$2,198
Sep 199856012.592.08$705
Aug 19980011.301.91$0
Jul 1998172011.742.24$2,019
Jun 19980011.242.24$0
May 1998135012.622.21$1,704
Apr 19980013.042.51$0
Mar 1998137012.802.31$1,754
Feb 19980013.952.30$0
Jan 1998162014.702.15$2,381
Dec 19970016.322.41$0
Nov 1997116018.193.09$2,110
Oct 1997160019.253.15$3,080
Sep 1997123017.742.95$2,182
Aug 1997150017.862.55$2,679
Jul 1997182017.582.25$3,200
Jun 19970017.242.26$0
May 1997122018.972.31$2,314
Apr 19970017.882.08$0
Mar 1997122018.951.94$2,312
Feb 1997178020.492.21$3,647
Jan 1997185023.483.54$4,344
Dec 19960023.32$0
Nov 1996146021.97$3,208
Oct 1996183023.31$4,266
Sep 19960022.22$0
Aug 1996148020.26$2,998
Jul 1996163019.55$3,187
Jun 1996128018.73$2,397
May 199684019.43$1,632
Apr 19960021.51$0
Mar 1996249019.38$4,826
Feb 19960116.98$0
Jan 1996119117.07$2,031
Dec 1995119117.19$2,046
Nov 1995144116.00$2,304
Oct 1995180115.43$2,777
Sep 1995101116.18$1,634
Aug 1995174115.92$2,770
Jul 19950115.24$0
Jun 1995159116.41$2,609
May 1995176117.56$3,091
Apr 19950117.73$0
Mar 1995139116.44$2,285
Feb 1995170116.58$2,819
Jan 1995181115.92$2,882
Dec 199484115.03$1,263
Nov 1994182115.90$2,894
Oct 1994178115.58$2,773
Sep 19940115.29$0
Aug 1994584116.13$9,420
Jul 19940117.56$0
Jun 1994167117.09$2,854
May 1994185115.88$2,938
Apr 1994179114.14$2,531
Mar 1994177112.46$2,205
Feb 1994181112.50$2,263
Jan 1994174112.66$2,203
Dec 1993344112.33$4,242
Nov 19930114.49$0
Oct 1993170115.85$2,695
Sep 1993292115.03$4,389
Aug 1993178115.66$2,787
Jul 1993181115.46$2,798
Jun 1993179116.79$3,005
May 1993182117.68$3,218
Apr 1993343118.05$6,191
Mar 19930118.14$0
Feb 1993180117.90$3,222
Jan 1993176116.93$2,980

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.

Apr 2025 — as filed, then multipliedworked
Oil                   79 bbl  × $ 62.36 =     $4,926
Casinghead gas         0 Mcf  × $  3.54 =         $0

────────────────────────────────────────────────────
Month total                                   $4,926

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/9591 is the state's own key, not one this site invented.