ROADRUNNER-KNOX UNIT

Operated by ANCHOR OPERATING CO. (P-5 20596) 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 18186District 03Field 34733500NGPA filingOilCasinghead gasSaveExport
Value, all time
$1.5 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 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
OilDisposition27,187 bbl$535,550
Casinghead gasProduction302,396 Mcf$956,536
Total$1,492,086

89,898 Mcf of this lease's gas, across 42 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 (1)

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 30.2442, -96.8287. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

30.24416, -96.82872 · 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%
1 of 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
8,725 ft
1 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
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

The one well that filed a depth was drilled to 8,725 ft.

Completions filed
Oct 2011
1 of 1 wells

1 well

42-2873168618,725 ftOct 2011Yes

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 20250062.363.54$0
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 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
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 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
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 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 20190052.782.49$0
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 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
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 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 2012144085.133.02$12,259
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 2011066483.623.99$2,647
Aug 2011062283.404.15$2,581
Jul 2011031294.144.52$1,409
Jun 2011035392.904.64$1,638
May 2011042798.134.40$1,881
Apr 20110476105.964.33$2,063
Mar 2011038696.364.06$1,566
Feb 2011026685.644.18$1,112
Jan 2011028686.504.59$1,312
Dec 2010031485.734.35$1,365
Nov 2010027580.843.80$1,044
Oct 2010011778.103.51$411
Sep 2010013472.633.98$533
Aug 2010017873.684.42$787
Jul 2010029672.554.74$1,402
Jun 2010049270.364.91$2,416
May 2010043771.124.24$1,851
Apr 2010038581.694.12$1,587
Mar 2010044578.394.39$1,953
Feb 2010042773.585.44$2,324
Jan 2010046574.365.96$2,773
Dec 2009049171.445.48$2,693
Nov 2009050674.593.75$1,898
Oct 2009064972.544.11$2,668
Sep 2009060165.543.06$1,842
Aug 2009089067.423.22$2,864
Jul 2009078361.133.46$2,713
Jun 2009085666.163.90$3,334
May 200901,43954.743.93$5,649
Apr 200901,05246.773.59$3,774
Mar 2009072942.144.06$2,959
Feb 2009079232.814.63$3,669
Jan 200919377135.865.37$11,062
Dec 2008083937.105.98$5,015
Nov 200801,10555.496.86$7,581
Oct 200801,25275.246.92$8,666
Sep 200801,297101.767.88$10,217
Aug 200801,116114.228.48$9,467
Jul 200801,362131.0811.39$15,512
Jun 200801,215131.3313.03$15,835
May 200801,169123.1711.57$13,530
Apr 20080607110.3110.45$6,346
Mar 200800101.909.66$0
Feb 2008055792.538.77$4,885
Jan 2008077190.388.21$6,327
Dec 2007067688.337.30$4,936
Nov 2007075691.677.29$5,513
Oct 2007074182.856.92$5,129
Sep 2007076875.846.24$4,796
Aug 2007091569.066.39$5,845
Jul 20071856770.906.39$13,544
Jun 2007093262.007.55$7,035
May 2007088858.747.85$6,968
Apr 2007070059.617.81$5,464
Mar 2007065556.927.30$4,783
Feb 2007078555.108.22$6,450
Jan 2007061450.306.73$4,130
Dec 200601,01756.656.92$7,036
Nov 2006071354.207.62$5,431
Oct 2006084854.906.01$5,100
Sep 2006073860.085.04$3,717
Aug 2006088368.717.34$6,481
Jul 2006080969.376.34$5,131
Jun 2006097466.286.38$6,218
May 200601,02866.016.42$6,605
Apr 2006078664.397.36$5,785
Mar 2006077956.707.08$5,518
Feb 2006061757.597.75$4,782
Jan 2006070060.598.93$6,253
Dec 200518980654.9413.42$21,196
Nov 2005059854.6910.59$6,332
Oct 2005084158.3413.80$11,602
Sep 2005081361.4512.08$9,820
Aug 2005070561.519.80$6,907
Jul 2005064855.697.84$5,083
Jun 2005055752.337.38$4,111
May 2005053945.226.65$3,585
Apr 2005063649.207.36$4,681
Mar 2005082050.377.15$5,867
Feb 2005086945.226.31$5,485
Jan 2005092343.166.32$5,835
Dec 2004088239.866.75$5,954
Nov 2004087945.286.33$5,564
Oct 2004078849.706.52$5,134
Sep 200416995343.245.28$12,343
Aug 2004079742.375.55$4,424
Jul 200401,16738.286.08$7,100
Jun 2004095436.106.43$6,137
May 200401,18537.486.49$7,696
Apr 2004093934.475.86$5,501
Mar 200401,25034.365.53$6,913
Feb 2004099032.455.51$5,455
Jan 200401,02632.036.30$6,463
Dec 200301,13330.266.30$7,140
Nov 20031761,12928.804.60$10,257
Oct 200301,00728.174.76$4,793
Sep 200301,24326.314.75$5,903
Aug 200301,24129.765.13$6,366
Jul 200301,19829.415.17$6,195
Jun 200301,59128.565.98$9,519
May 200301,37826.595.97$8,230
Apr 200301,33926.675.41$7,240
Mar 20031911,37631.146.10$14,336
Feb 200301,28733.487.93$10,201
Jan 200301,48330.315.58$8,278
Dec 20021961,52226.914.85$12,662
Nov 200201,44724.664.14$5,986
Oct 200201,59826.464.23$6,758
Sep 200201,69127.443.64$6,147
Aug 200202,06525.963.16$6,534
Jul 200202,93824.583.06$8,995
Jun 200202,70423.733.34$9,027
May 20020024.663.58$0
Apr 200215782023.653.51$6,593
Mar 200202,34722.003.10$7,282
Feb 20021761,87818.222.38$7,668
Jan 200202,00217.172.38$4,756
Dec 2001581,30216.932.36$4,060
Nov 20011721,63118.072.41$7,031
Oct 200102,19819.782.53$5,558
Sep 20011762,30524.262.25$9,459
Aug 20011781,98424.873.05$10,484
Jul 20014452,72823.933.20$19,370
Jun 20011892,88824.563.82$15,686
May 20015583,88825.524.31$30,987
Apr 20013603,92424.685.34$29,821
Mar 20013724,44324.545.38$33,016
Feb 20017503,43027.755.77$40,594
Jan 200136914427.478.40$11,346
Dec 20001,1432,59826.889.12$54,424
Nov 20001881,28132.215.66$13,303
Oct 20001871,02531.235.15$11,114
Sep 2000018731.875.19$970
Aug 200014233829.644.54$5,744
Jul 20009326428.534.09$3,733
Jun 20009817529.304.40$3,641
May 20008220027.263.68$2,971
Apr 2000017024.513.12$530
Mar 200017215528.422.86$5,332
Feb 2000014227.622.73$387
Jan 200019115125.272.48$5,201
Dec 1999015124.282.42$366
Nov 1999015623.192.43$380
Oct 1999016220.982.80$454
Sep 1999123321.752.62$632
Aug 1999032019.262.88$920
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 199909115.102.21$201
Mar 1999013012.471.84$239
Feb 199901359.981.82$245
Jan 19991799510.381.90$2,039
Dec 19980569.201.77$99
Nov 1998020110.892.19$439
Oct 1998035912.421.97$707
Sep 199818529312.592.08$2,939
Aug 199802311.301.91$44
Jul 1998178011.742.24$2,090
Jun 199851,63411.242.24$3,712
May 19981781,40012.622.21$5,335
Apr 1998024313.042.51$609
Mar 199837374212.802.31$6,488
Feb 199838274713.952.30$7,046
Jan 19983601,58914.702.15$8,716
Dec 19973771,16916.322.41$8,971
Nov 19975591,87018.193.09$15,943
Oct 19977553,15919.253.15$24,484
Sep 19973732,68717.742.95$14,557
Aug 19973607,63817.862.55$25,943
Jul 19973593,41017.582.25$13,973
Jun 199702,92417.242.26$6,600
May 19973533,98718.972.31$15,900
Apr 199707,72717.882.08$16,094
Mar 19971610,16918.951.94$20,022
Feb 19973410,78920.492.21$24,496
Jan 1997106,68123.483.54$23,884
Dec 1996166223.32$23
Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19960020.26$0
Jul 19960019.55$0
Jun 1996020018.73$0
May 1996017119.43$0
Apr 199636048721.51$7,744
Mar 1996034719.38$0
Feb 1996061916.98$0
Jan 199637042917.07$6,316
Dec 1995053817.19$0
Nov 1995037816.00$0
Oct 1995059815.43$0
Sep 199517643716.18$2,848
Aug 1995091115.92$0
Jul 199513015.24$15
Jun 19950016.41$0
May 1995225117.56$35
Apr 199501,07317.73$0
Mar 19951821,60316.44$2,992
Feb 19951251,25016.58$2,073
Jan 19951832,53015.92$2,913
Dec 19947383,00715.03$11,092
Nov 19943713,43315.90$5,899
Oct 19943693,21115.58$5,749
Sep 19945503,52515.29$8,410
Aug 19949114,71116.13$14,694
Jul 19943663,58717.56$6,427
Jun 19946863,98717.09$11,724
May 19949194,73315.88$14,594
Apr 19947254,27714.14$10,252
Mar 19941,0975,35912.46$13,669
Feb 19947454,25412.50$9,313
Jan 19947454,81812.66$9,432
Dec 19933692,32512.33$4,550
Nov 19933831,71514.49$5,550
Oct 19933732,29315.85$5,912
Sep 19933692,23615.03$5,546
Aug 19933672,47715.66$5,747
Jul 19933682,78215.46$5,689
Jun 19937392,65916.79$12,408
May 19933782,65817.68$6,683
Apr 19933772,58618.05$6,805
Mar 19933792,43418.14$6,875
Feb 19933551,96017.90$6,355
Jan 19933722,35716.93$6,298

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.

Jul 2012 — as filed, then multipliedworked
Oil                  144 bbl  × $ 85.13 =    $12,259
Casinghead gas         0 Mcf  × $  3.02 =         $0

────────────────────────────────────────────────────
Month total                                  $12,259

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/18186 is the state's own key, not one this site invented.