MineralRecord
Log inSign up

COLTHARP

Operated by MUSTANG FUEL CORPORATION (P-5 596921) in the MILLS RANCH (GRANITE WASH CONS.) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 8506District 10Field 61691235OilCasinghead gasSaveExport
Value, all time
$17.3 M
Dec 2011 – May 2026
Value, last 12 filed months
$523 k
at the published price for each month
Months reported
174
no gaps in the span
Streams
2
oil, casinghead gas

The MILLS RANCH (GRANITE WASH CONS.) field

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 274 leases and 400 wells, and the rule below applies to all of them.

Discovered
2010-02-23
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 2013-07-09.

The Commission's schedule remark for this field reads: “ DESIGNATED AS UFT FIELD PER DOCKET #01-0299858.”

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
OilDisposition169,227 bbl$13,350,653
Casinghead gasProduction1,154,547 Mcf$3,926,094
Total$17,276,747

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 35.3728, -100.0711. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.37279, -100.07106 · 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
0.0%
0 of 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
10,817 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
00.0%
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.
1100.0%

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 10,817 ft.

Completions filed
Jan 2012
1 of 1 wells

1 well

42-483332855051H10,817 ftJan 2012——

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 (174)

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

174 months

May 20261924,335106.413.05$33,634
Apr 20263814,49198.932.87$50,580
Mar 20263944,38389.753.15$49,166
Feb 20267343,59763.503.75$60,099
Jan 20265485,70059.138.00$77,991
Dec 20255676,14656.664.41$59,251
Nov 202504,52658.593.93$17,771
Oct 202504,87959.383.30$16,124
Sep 20253304,19462.743.08$33,609
Aug 20251915,81163.933.01$29,729
Jul 20251877,14066.743.32$36,151
Jun 20255587,02866.483.13$59,084
May 202505,32860.553.23$17,222
Apr 20251845,29062.363.54$30,217
Mar 20253716,01267.704.27$50,778
Feb 20251964,41870.884.34$33,070
Jan 20251994,39174.324.28$33,577
Dec 20243725,03168.993.12$41,368
Nov 20241825,09569.052.20$23,768
Oct 20241956,58071.372.28$28,929
Sep 20241916,28769.612.36$28,160
Aug 20249136,34575.632.06$82,144
Jul 20241816,14579.932.15$27,658
Jun 20241926,49178.082.63$32,089
May 20245096,54078.812.20$54,492
Apr 202405,99884.451.66$9,952
Mar 20245696,31680.301.55$55,450
Feb 20241805,93676.091.78$24,284
Jan 202404,86873.023.30$16,053
Dec 20233605,97071.262.61$41,240
Nov 202303,99077.892.81$11,202
Oct 20233695,74985.443.09$49,276
Sep 20231926,13389.042.74$33,870
Aug 20233616,61580.522.67$46,749
Jul 20231785,16674.852.64$26,971
Jun 20231794,80068.962.26$23,185
May 20235186,81370.622.23$51,756
Apr 20231874,89078.122.24$25,551
Mar 20233814,09272.852.39$37,549
Feb 20233635,56275.112.47$40,979
Jan 20231896,34476.533.39$35,956
Dec 20223725,90676.415.73$62,260
Nov 202205,17585.005.65$29,219
Oct 20221955,23687.185.86$47,703
Sep 20225595,67984.888.16$93,809
Aug 20221946,36794.529.13$76,450
Jul 20225538,158101.587.54$117,702
Jun 20221681,274115.097.98$29,498
May 202203,442109.378.43$29,027
Apr 20223605,034104.226.84$71,940
Mar 20227505,381108.885.08$108,976
Feb 202204,29991.054.86$20,888
Jan 20227285,14281.844.54$82,912
Dec 20211824,45171.323.90$30,335
Nov 20217154,74877.435.24$80,227
Oct 202104,88979.795.71$27,935
Sep 20213674,02269.865.35$47,160
Aug 20215614,11066.024.22$54,384
Jul 202104,81570.783.98$19,174
Jun 20218824,22369.493.38$75,567
May 20217384,29563.483.02$59,809
Apr 20213714,34160.362.76$34,368
Mar 20213795,95861.302.72$39,420
Feb 202102,10457.805.55$11,673
Jan 20211854,78050.412.81$22,759
Dec 20203624,92144.642.68$29,326
Nov 20201855,41738.772.71$21,834
Oct 20203814,63636.972.48$25,576
Sep 202005,02437.091.99$10,003
Aug 20203725,27439.982.39$27,452
Jul 20208775,84138.371.83$44,311
Jun 20205715,00234.901.69$28,383
May 20201885,58916.921.81$13,324
Apr 20201805,33214.751.80$12,276
Mar 20203925,09830.341.86$21,356
Feb 20203914,47349.881.98$28,363
Jan 20209224,93457.252.09$63,120
Dec 201905,14459.012.30$11,854
Nov 20195924,99655.302.75$46,480
Oct 20195665,36153.472.42$43,230
Sep 20194,2405,35955.052.66$247,652
Aug 20197135,50353.112.30$50,548
Jul 20195725,80656.272.46$46,470
Jun 20191834,07752.782.49$19,815
May 20198945,19558.482.74$66,517
Apr 20191955,11462.632.75$26,280
Mar 20197755,71456.803.06$61,517
Feb 20191925,47750.852.79$25,056
Jan 20197775,96846.033.23$55,031
Dec 20181,2115,63646.594.19$80,010
Nov 201806,03552.934.24$25,572
Oct 20189025,70161.443.40$74,791
Sep 20183776,49059.543.11$42,618
Aug 20181755,90059.403.07$28,488
Jul 20181,0555,17965.142.93$83,907
Jun 20183644,01260.183.08$34,250
May 20181,0346,47065.382.90$86,371
Apr 20183626,48663.842.90$41,925
Mar 20188706,38661.222.79$71,058
Feb 20183456,27261.782.77$38,663
Jan 20189027,51562.874.01$86,839
Dec 20171937,11857.272.92$31,848
Nov 20177106,97555.423.12$61,099
Oct 20171,2227,81649.292.98$83,553
Sep 201707,84847.523.09$24,229
Aug 20171,2298,24045.373.00$80,516
Jul 201708,10343.873.09$25,016
Jun 201703,08242.493.09$9,515
May 20175484,37345.373.26$39,134
Apr 201704,33447.933.21$13,919
Mar 20175404,09146.772.98$37,462
Feb 20178884,58850.452.95$58,346
Jan 20175454,57249.413.42$42,559
Dec 20161,0725,81548.763.72$73,919
Nov 20163535,50142.492.64$29,546
Oct 20165345,22946.193.09$40,824
Sep 20161,0736,40641.553.10$64,446
Aug 20165307,80941.442.92$44,799
Jul 20161735,66541.622.92$23,767
Jun 201669037245.352.69$32,291
May 20166982,87342.521.99$35,399
Apr 20163616,08536.561.99$25,314
Mar 20161,2516,67933.011.79$53,278
Feb 20167206,34826.472.06$32,158
Jan 20167056,75227.352.36$35,246
Dec 20151,6186,90132.362.00$66,170
Nov 20156806,74338.792.17$40,992
Oct 20157149,30543.552.43$53,674
Sep 20151,0737,09442.992.76$65,697
Aug 20151,0428,01540.162.87$64,870
Jul 20157015,99748.152.95$51,415
Jun 20158758,13956.152.88$72,595
May 20152,1228,69655.212.96$142,856
Apr 20158907,35049.822.71$64,233
Mar 20157216,25342.892.93$49,274
Feb 20153685,67044.662.98$33,310
Jan 20151,0828,85643.433.10$74,450
Dec 20141,45033,72654.693.59$200,423
Nov 20141,60631,52770.464.25$247,207
Oct 201471934,25678.303.90$189,929
Sep 20141,43012,06886.164.05$172,029
Aug 20141,44610,30989.394.04$170,856
Jul 201490810,73596.564.18$132,544
Jun 20141,2697,35398.164.74$159,395
May 20141,4137,77494.734.73$170,598
Apr 20141,4918,09695.944.81$181,981
Mar 20141,2817,88795.895.06$162,718
Feb 20141,0947,32997.406.19$151,937
Jan 20141,6337,98790.404.86$186,446
Dec 20131,4458,79891.824.35$170,991
Nov 20131,9629,01888.853.74$208,036
Oct 20131,6217,94197.423.78$187,930
Sep 20131,7948,216104.113.72$217,318
Aug 20131,76710,807104.253.52$222,279
Jul 20131,81512,154102.523.72$231,259
Jun 20132,55413,14394.403.93$292,794
May 20132,0457,26694.834.15$224,075
Apr 20132,5698,45393.964.28$277,584
Mar 20131,97110,85993.623.91$227,015
Feb 20132,1154,43191.233.42$208,105
Jan 20132,4645,54991.603.42$244,679
Dec 20121,2839,20586.773.42$142,808
Nov 20122,75312,89286.953.62$286,106
Oct 20123,83313,89289.383.40$389,822
Sep 20122,92214,14794.672.92$317,912
Aug 20125,0266,98092.662.91$486,008
Jul 20124,6864,53285.133.02$412,609
Jun 20124,15121279.822.52$331,867
May 20126,34910,32491.612.49$607,321
Apr 20127,29715,618101.652.00$772,926
Mar 20129,00813,437105.052.22$976,148
Feb 20127,7774,922101.102.57$798,905
Jan 20126,19042098.092.73$608,325
Dec 20110096.873.24$0

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.

May 2026 — as filed, then multipliedworked
Oil                  192 bbl  × $106.41 =    $20,431
Casinghead gas     4,335 Mcf  × $  3.05 =    $13,204

────────────────────────────────────────────────────
Month total                                  $33,634

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. 10/O/8506 is the state's own key, not one this site invented.