SPEARMAN, ROBERT "A"

Operated by CHESAPEAKE OPERATING, L.L.C. (P-5 147699) in the GIDDINGS (AUSTIN CHALK-3) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 13787District 03Field 34733500NGPA filingOilCasinghead gasSaveExport
Value, all time
$1.8 M
Jan 1993 – Oct 2020
Value, last 12 filed months
$0
at the published price for each month
Months reported
334
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 5,900 leases and 6,985 wells, and the rule below applies to all of them.

Discovered
1960-10-29
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2025-09-30.

The Commission's schedule remark for this field reads: DKT OG-25-00028011: UFT FIELD, ALLOCATION FORMULA SUSPENDED

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
NGPA1none

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
OilDisposition40,438 bbl$1,314,535
Casinghead gasProduction140,340 Mcf$449,133
Total$1,763,668

41,877 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 (2)

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 30.5946, -96.6302. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

30.59464, -96.63021 · 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%
2 of 2 wells
With a plug date
100.0%
2 of 2 wells
Median depth
7,692 ft
2 wells filed one
Completion to plug
25.8 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
2100.0%
A plug date is filed
2100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
2100.0%
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 7,680 and 7,704 ft, median 7,692 ft, over the 2 wells that filed a depth.

Completions filed
Dec 1980 – Apr 1981
2 of 2 wells
Plug dates filed
Apr 1993 – Jul 2020
2 of 2 wells

Last completion to plug: a median of 25.8 years across the 2 wells that filed both dates, with the middle half between 18.9 years and 32.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-0513139527,704 ftApr 1981Apr 1993Yes
42-0513066617,680 ftDec 1980Jul 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 (334)

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

334 months

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 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 2019166052.782.49$8,761
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20172261749.292.98$11,190
Sep 20171063147.523.09$5,133
Aug 201701445.373.00$42
Jul 20170543.873.09$15
Jun 201702542.493.09$77
May 201702845.373.26$91
Apr 201703347.933.21$106
Mar 201708046.772.98$239
Feb 20171866450.452.95$9,573
Jan 201707649.413.42$260
Dec 201608748.763.72$324
Nov 201608442.492.64$222
Oct 201606146.193.09$189
Sep 20163527041.553.10$14,843
Aug 201607141.442.92$208
Jul 201609041.622.92$263
Jun 201604345.352.69$115
May 201604642.521.99$92
Apr 201618136.561.99$198
Mar 201606233.011.79$111
Feb 201605326.472.06$109
Jan 20163763527.352.36$10,366
Dec 2015017932.362.00$358
Nov 2015018238.792.17$394
Oct 2015018243.552.43$442
Sep 2015011342.992.76$312
Aug 2015015540.162.87$445
Jul 201518817648.152.95$9,571
Jun 2015018756.152.88$539
May 2015119655.212.96$634
Apr 2015019149.822.71$517
Mar 2015019242.892.93$563
Feb 2015018644.662.98$554
Jan 201518020643.433.10$8,456
Dec 2014020554.693.59$736
Nov 2014021070.464.25$893
Oct 201418420678.303.90$15,211
Sep 2014020486.164.05$825
Aug 2014020889.394.04$839
Jul 201417221196.564.18$17,490
Jun 2014019498.164.74$919
May 2014019994.734.73$941
Apr 2014017595.944.81$842
Mar 2014017895.895.06$900
Feb 201419811897.406.19$20,016
Jan 2014014290.404.86$690
Dec 2013010291.824.35$444
Nov 201317216988.853.74$15,914
Oct 2013018097.423.78$680
Sep 20131181104.113.72$777
Aug 20130186104.253.52$655
Jul 2013134258102.523.72$14,697
Jun 2013010594.403.93$413
May 20130094.834.15$0
Apr 2013023993.964.28$1,024
Mar 201316524693.623.91$16,410
Feb 2013022691.233.42$773
Jan 201318325791.603.42$17,642
Dec 2012027186.773.42$927
Nov 2012027286.953.62$986
Oct 2012027789.383.40$942
Sep 201217419494.672.92$17,039
Aug 2012028792.662.91$835
Jul 2012022585.133.02$680
Jun 201217127679.822.52$14,344
May 201204591.612.49$112
Apr 2012173285101.652.00$18,155
Mar 20121298105.052.22$767
Feb 20120274101.102.57$704
Jan 2012028798.092.73$785
Dec 201112029696.873.24$12,583
Nov 201115828695.723.31$16,071
Oct 2011030084.983.65$1,095
Sep 2011028983.623.99$1,152
Aug 201117231283.404.15$15,639
Jul 2011029994.144.52$1,351
Jun 2011030192.904.64$1,397
May 201117233098.134.40$18,332
Apr 20110325105.964.33$1,408
Mar 201118129096.364.06$18,618
Feb 2011027385.644.18$1,141
Jan 2011031986.504.59$1,464
Dec 201018233085.734.35$17,038
Nov 2010032380.843.80$1,226
Oct 201018336478.103.51$15,570
Sep 2010036772.633.98$1,460
Aug 2010137573.684.42$1,731
Jul 201017836972.554.74$14,662
Jun 2010036370.364.91$1,782
May 2010039771.124.24$1,681
Apr 201017036881.694.12$15,404
Mar 2010037578.394.39$1,646
Feb 201018131973.585.44$15,054
Jan 201018436774.365.96$15,871
Dec 2009038271.445.48$2,095
Nov 2009040274.593.75$1,508
Oct 2009043772.544.11$1,796
Sep 200916335565.543.06$11,771
Aug 2009039767.423.22$1,278
Jul 200916046361.133.46$11,385
Jun 2009044366.163.90$1,725
May 200918645354.743.93$11,960
Apr 2009044546.773.59$1,596
Mar 200917534642.144.06$8,779
Feb 2009015532.814.63$718
Jan 200916345635.865.37$8,294
Dec 2008029437.105.98$1,757
Nov 200818246455.496.86$13,282
Oct 2008050075.246.92$3,461
Sep 2008168520101.767.88$21,192
Aug 2008194531114.228.48$26,663
Jul 20080410131.0811.39$4,670
Jun 20080370131.3313.03$4,822
May 20080403123.1711.57$4,664
Apr 200819372110.3110.45$22,043
Mar 20080100101.909.66$966
Feb 2008036992.538.77$3,236
Jan 200818239190.388.21$19,658
Dec 2007042288.337.30$3,081
Nov 200718941891.677.29$20,374
Oct 2007043482.856.92$3,004
Sep 2007043675.846.24$2,722
Aug 200716643369.066.39$14,230
Jul 200717246870.906.39$15,184
Jun 2007038862.007.55$2,929
May 2007032658.747.85$2,558
Apr 200719244959.617.81$14,950
Mar 2007178056.927.30$5,752
Feb 20077444255.108.22$7,709
Jan 200717745450.306.73$11,957
Dec 2006045656.656.92$3,155
Nov 200615039954.207.62$11,169
Oct 2006030354.906.01$1,822
Sep 200616026660.085.04$10,953
Aug 2006027468.717.34$2,011
Jul 200617836869.376.34$14,682
Jun 2006043766.286.38$2,790
May 200616726066.016.42$12,694
Apr 2006032864.397.36$2,414
Mar 200616649856.707.08$12,939
Feb 2006040857.597.75$3,162
Jan 200618332660.598.93$14,000
Dec 2005051454.9413.42$6,896
Nov 200518868454.6910.59$17,524
Oct 2005070558.3413.80$9,726
Sep 200518254961.4512.08$17,815
Aug 2005072061.519.80$7,054
Jul 200518317255.697.84$11,540
Jun 200503652.337.38$266
May 200518215345.226.65$9,248
Apr 2005030149.207.36$2,216
Mar 200516039150.377.15$10,857
Feb 200518134645.226.31$10,369
Jan 2005064943.166.32$4,103
Dec 200416256439.866.75$10,265
Nov 200416160645.286.33$11,126
Oct 2004049049.706.52$3,192
Sep 200416952043.245.28$10,055
Aug 200417951042.375.55$10,415
Jul 2004047038.286.08$2,860
Jun 200418146536.106.43$9,525
May 200418145737.486.49$9,752
Apr 2004244534.475.86$2,676
Mar 200415032934.365.53$6,973
Feb 200418351032.455.51$8,748
Jan 2004540032.036.30$2,680
Dec 200318426430.266.30$7,231
Nov 20031923628.804.60$5,695
Oct 200326928.174.76$385
Sep 200316813626.314.75$5,066
Aug 200318712129.765.13$6,186
Jul 200318556329.415.17$8,352
Jun 2003153928.565.98$3,253
May 200335460126.595.97$13,002
Apr 200317658326.675.41$7,846
Mar 200332458531.146.10$13,656
Feb 2003051233.487.93$4,058
Jan 2003189730.315.58$5,037
Dec 200215051926.914.85$6,556
Nov 200214650324.664.14$5,681
Oct 2002058626.464.23$2,478
Sep 200218864427.443.64$7,500
Aug 2002075925.963.16$2,402
Jul 200216770624.583.06$6,266
Jun 2002071023.733.34$2,370
May 200217365524.663.58$6,614
Apr 2002062923.653.51$2,209
Mar 200217361322.003.10$5,708
Feb 2002050818.222.38$1,207
Jan 200236159417.172.38$7,610
Dec 2001056916.932.36$1,345
Nov 2001059918.072.41$1,441
Oct 200117459119.782.53$4,936
Sep 2001056424.262.25$1,270
Aug 200117465524.873.05$6,327
Jul 2001062023.933.20$1,982
Jun 200114659624.563.82$5,865
May 200115549925.524.31$6,105
Apr 200115550324.685.34$6,509
Mar 2001053224.545.38$2,860
Feb 20011623427.755.77$4,692
Jan 200116252627.478.40$8,868
Dec 2000047926.889.12$4,370
Nov 200016748032.215.66$8,095
Oct 200017949231.235.15$8,122
Sep 2000050531.875.19$2,619
Aug 200012556329.644.54$6,261
Jul 200016063028.534.09$7,141
Jun 200015957729.304.40$7,196
May 2000057927.263.68$2,131
Apr 200018348424.513.12$5,993
Mar 200016753128.422.86$6,265
Feb 200033749727.622.73$10,663
Jan 2000055625.272.48$1,379
Dec 1999049724.282.42$1,205
Nov 199916747823.192.43$5,036
Oct 199916544320.982.80$4,704
Sep 199903621.752.62$94
Aug 199917646419.262.88$4,724
Jul 1999073817.892.37$1,751
Jun 199918059415.942.36$4,272
May 199915359515.792.32$3,797
Apr 1999059415.102.21$1,312
Mar 199913759212.471.84$2,797
Feb 19991324809.981.82$2,190
Jan 199918056910.381.90$2,949
Dec 19981535139.201.77$2,317
Nov 199818354810.892.19$3,191
Oct 199817649712.421.97$3,165
Sep 1998041912.592.08$873
Aug 199817540911.301.91$2,758
Jul 199836715611.742.24$4,658
Jun 1998034311.242.24$767
May 199838170412.622.21$6,361
Apr 1998067913.042.51$1,701
Mar 199817071512.802.31$3,827
Feb 199835561213.952.30$6,359
Jan 1998068014.702.15$1,465
Dec 19973535516.322.41$5,894
Nov 199735549818.193.09$7,995
Oct 1997083219.253.15$2,621
Sep 199756390917.742.95$12,674
Aug 1997089717.862.55$2,292
Jul 199736582617.582.25$8,273
Jun 199701,10317.242.26$2,490
May 19973331,33218.972.31$9,392
Apr 19973711,53217.882.08$9,824
Mar 19975371,73718.951.94$13,544
Feb 199701,43120.492.21$3,157
Jan 19973791,41823.483.54$13,918
Dec 19963651,28123.32$8,512
Nov 19965501,28421.97$12,084
Oct 19965381,32223.31$12,541
Sep 19963541,72322.22$7,866
Aug 19963692,00120.26$7,476
Jul 19965291,71719.55$10,342
Jun 19965571,00518.73$10,433
May 19964991,55019.43$9,696
Apr 19969151,92521.51$19,682
Mar 19969372,32819.38$18,159
Feb 19963632,30416.98$6,164
Jan 19969343,05217.07$15,943
Dec 19959092,04217.19$15,626
Nov 199509516.00$0
Oct 1995148615.43$15
Sep 199535345616.18$5,712
Aug 1995037415.92$0
Jul 199536240515.24$5,517
Jun 199518647816.41$3,052
May 199518539017.56$3,249
Apr 199518141217.73$3,209
Mar 199517751916.44$2,910
Feb 199534841216.58$5,770
Jan 1995232515.92$32
Dec 199415358815.03$2,300
Nov 199417061915.90$2,703
Oct 199437260115.58$5,796
Sep 199417462515.29$2,660
Aug 199416569016.13$2,661
Jul 199434874317.56$6,111
Jun 199433170017.09$5,657
May 199416863315.88$2,668
Apr 199416356814.14$2,305
Mar 199430151612.46$3,750
Feb 199456953112.50$7,113
Jan 1994254512.66$25
Dec 199330959312.33$3,810
Nov 199331368814.49$4,535
Oct 199316947915.85$2,679
Sep 199330742915.03$4,614
Aug 199345855515.66$7,172
Jul 199330159915.46$4,653
Jun 199331160716.79$5,222
May 199350671417.68$8,946
Apr 199333449918.05$6,029
Mar 199332661618.14$5,914
Feb 199340130317.90$7,178
Jan 199334855016.93$5,892

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 2019 — as filed, then multipliedworked
Oil                  166 bbl  × $ 52.78 =     $8,761
Casinghead gas         0 Mcf  × $  2.49 =         $0

────────────────────────────────────────────────────
Month total                                   $8,761

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. 03/O/13787 is the state's own key, not one this site invented.