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HALFF 65

Operated by CLARK OIL CO. (P-5 157689) in the NOELKE (CLEAR FORK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 19159District 7CField 65674090OilCasinghead gasSaveExport
Value, all time
$8.9 M
Jul 2015 – May 2026
Value, last 12 filed months
$316 k
at the published price for each month
Months reported
131
no gaps in the span
Streams
2
oil, casinghead gas

The NOELKE (CLEAR FORK) 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 3 leases and 8 wells, and the rule below applies to all of them.

Discovered
1950-02-08
as the register files it
Field class
Oil
the register's own label
Between wells
—
no field rule filed
From a lease line
—
no field rule filed

The Commission's schedule remark for this field reads: “UNDER UNLIMITED NET GOR.”

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
OilDisposition107,111 bbl$5,625,110
Casinghead gasProduction1,094,936 Mcf$3,275,634
Total$8,900,743

Wells on this lease (5)

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 30.8451, -101.8371. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

30.84511, -101.83745 · 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 5 wells
With a plug date
0.0%
0 of 5 wells
Median depth
3,948 ft
5 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.
5100.0%

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 3,817 and 7,250 ft, median 3,948 ft, over the 5 wells that filed a depth.

Completions filed
Mar 2015 – Oct 2017
5 of 5 wells

5 wells

42-1054241554,060 ftOct 2017——
42-1054233343,914 ftJan 2017——
42-1054229033,948 ftOct 2016——
42-1054225223,817 ftSep 2015——
42-1054161717,250 ftMar 2015——

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 (131)

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

131 months

May 20261233,070106.413.05$22,439
Apr 20262423,42798.932.87$33,776
Mar 20261223,31189.753.15$21,377
Feb 20262333,40263.503.75$27,554
Jan 20262463,35259.138.00$41,355
Dec 20252413,30956.664.41$28,259
Nov 20253633,40558.593.93$34,638
Oct 20253593,42859.383.30$32,646
Sep 20253583,55562.743.08$33,399
Aug 20251213,42063.933.01$18,046
Jul 20251262,43266.743.32$16,472
Jun 20258222566.483.13$6,155
May 20258317060.553.23$5,575
Apr 202516616562.363.54$10,936
Mar 202515217067.704.27$11,016
Feb 202515314870.884.34$11,487
Jan 202515532074.324.28$12,889
Dec 202431462568.993.12$23,614
Nov 202415666469.052.20$12,232
Oct 202415478471.372.28$12,780
Sep 202415472769.612.36$12,439
Aug 202415161875.632.06$12,695
Jul 202414568879.932.15$13,067
Jun 202415956378.082.63$13,898
May 202461059678.812.20$49,384
Apr 2024061884.451.66$1,025
Mar 2024055880.301.55$862
Feb 202432154276.091.78$25,392
Jan 2024046873.023.30$1,543
Dec 202331842471.262.61$23,768
Nov 202314749977.892.81$12,851
Oct 202329159885.443.09$26,709
Sep 202329260089.042.74$27,641
Aug 2023063980.522.67$1,708
Jul 202343569274.852.64$34,388
Jun 2023066768.962.26$1,506
May 202344072470.622.23$32,685
Apr 2023170078.122.24$1,645
Mar 202329585472.852.39$23,535
Feb 202329571975.112.47$23,930
Jan 202314878976.533.39$13,999
Dec 202229373076.415.73$26,570
Nov 202214675085.005.65$16,645
Oct 202229479087.185.86$30,263
Sep 202229371884.888.16$30,731
Aug 202228584194.529.13$34,614
Jul 2022287926101.587.54$36,137
Jun 2022435911115.097.98$57,331
May 2022425930109.378.43$54,325
Apr 2022143854104.226.84$20,743
Mar 2022285653108.885.08$34,346
Feb 202215073591.054.86$17,229
Jan 202229479281.844.54$27,655
Dec 202132073771.323.90$25,696
Nov 202114471377.435.24$14,884
Oct 202101,40079.795.71$7,999
Sep 20210069.865.35$0
Aug 2021169066.024.22$11,157
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 202123295363.483.02$17,603
Apr 20211141,05760.362.76$9,797
Mar 2021229061.302.72$14,038
Feb 202111233757.805.55$8,343
Jan 20213443,33450.412.81$26,710
Dec 20202444,08844.642.68$21,829
Nov 20202595,34738.772.71$24,513
Oct 20202735,96436.972.48$24,874
Sep 20202796,84537.091.99$23,977
Aug 20204109,01339.982.39$37,889
Jul 20205289,31338.371.83$37,257
Jun 20207438,62534.901.69$40,510
May 202007,81816.921.81$14,188
Apr 20206557,94314.751.80$23,993
Mar 20205537,60630.341.86$30,897
Feb 20204226,16449.881.98$33,258
Jan 20208908,77257.252.09$69,328
Dec 201965013,07659.012.30$68,488
Nov 201967416,64955.302.75$83,069
Oct 201967416,42053.472.42$75,751
Sep 201983518,95355.052.66$96,330
Aug 201981017,19653.112.30$82,645
Jul 201989696556.272.46$52,792
Jun 20191,8041,00752.782.49$97,724
May 201962412,63158.482.74$71,105
Apr 20192119,19562.632.75$38,508
Mar 20198849,53956.803.06$79,421
Feb 201951413,46650.852.79$63,737
Jan 20191,43611,67946.033.23$103,801
Dec 20186931,82646.594.19$39,929
Nov 201897419,54552.934.24$134,371
Oct 20181,26130,51361.443.40$181,161
Sep 20181,41736,77859.543.11$198,674
Aug 20181,41225,31459.403.07$161,500
Jul 20181,82524,64565.142.93$191,137
Jun 20181,34017,45660.183.08$134,352
May 201896118,59865.382.90$116,779
Apr 20181,35221,34463.842.90$148,226
Mar 20181,34324,18261.222.79$149,610
Feb 20181,20925,90961.782.77$146,359
Jan 20181,44913,55862.874.01$145,457
Dec 20172,07420,44157.272.92$178,497
Nov 20172,45930,14855.423.12$230,290
Oct 20171,61525,96649.292.98$157,078
Sep 20172,80225,12747.523.09$210,725
Aug 20172,01727,85145.373.00$175,187
Jul 20173,02531,32643.873.09$229,419
Jun 20172,84332,37242.493.09$220,741
May 20173,39036,97445.373.26$274,465
Apr 20174,06743,30447.933.21$334,006
Mar 20175,16348,73346.772.98$386,877
Feb 20176,29338,43550.452.95$430,965
Jan 20174,04229,29949.413.42$299,883
Dec 20164,38027,76348.763.72$316,926
Nov 20164,23332,45142.492.64$265,672
Oct 20164,86822,42846.193.09$294,161
Sep 20163,96215,86841.553.10$213,822
Aug 20161653,08141.442.92$15,847
Jul 20161633,39141.622.92$16,701
Jun 20164003,56545.352.69$27,715
May 20161,0266,11742.521.99$55,805
Apr 20161,3458,80336.561.99$66,700
Mar 20161,0445,69533.011.79$44,679
Feb 20165394,11826.472.06$22,765
Jan 201606,25627.352.36$14,791
Dec 201514414332.362.00$4,946
Nov 20154094,55738.792.17$25,742
Oct 201525586743.552.43$13,209
Sep 20159928242.992.76$5,034
Aug 201533131640.162.87$14,201
Jul 201530949148.152.95$16,324

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                  123 bbl  × $106.41 =    $13,088
Casinghead gas     3,070 Mcf  × $  3.05 =     $9,351

────────────────────────────────────────────────────
Month total                                  $22,439

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/19159 is the state's own key, not one this site invented.