UNIVERSITY -141-

Operated by HIGHMARK ENERGY OPERATING, LLC (P-5 385847) in the SHAFTER LAKE (CLEAR FORK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 17918District 08Field 82570100Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$5.0 M
Jan 1993 – Apr 2025
Value, last 12 filed months
$0
at the published price for each month
Months reported
388
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 36 leases and 160 wells, and the rule below applies to all of them.

Discovered
1948-06-04
as the register files it
Field class
Oil
the register's own label
Between wells
660 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 1994-12-05.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: OPTIONAL ACRES, 20 1500 DIAG.

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
OilDisposition87,375 bbl$4,898,116
Casinghead gasProduction27,225 Mcf$86,451
Total$4,984,567

2,876 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 (3)

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 32.3795, -102.7053. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

32.38000, -102.70511 · 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%
3 of 3 wells
With a plug date
33.3%
1 of 3 wells
Median depth
9,980 ft
3 wells filed one
Completion to plug
34.2 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
3100.0%
A plug date is filed
133.3%
BothOn the schedule and plugged. Neither fact cancels the other.
133.3%
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 9,870 and 10,618 ft, median 9,980 ft, over the 3 wells that filed a depth.

Completions filed
Dec 1986 – Sep 2022
3 of 3 wells
Plug dates filed
Feb 2021
1 of 3 wells; 2 filed none

Last completion to plug: a median of 34.2 years across the 1 well that filed both dates, with the middle half between 34.2 years and 34.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-00305346310,618 ftSep 2022Yes
42-0030534429,870 ftMar 1994Yes
42-0030534319,980 ftDec 1986Feb 2021Yes

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 (388)

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

388 months

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 202114069.493.38$973
May 2021272763.483.02$1,795
Apr 2021126460.362.76$901
Mar 202103161.302.72$84
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 202024038.371.83$921
Jun 2020655834.901.69$2,367
May 202017114916.921.81$3,164
Apr 202014413314.751.80$2,364
Mar 202013210930.341.86$4,207
Feb 20201151849.881.98$5,772
Jan 20201169957.252.09$6,848
Dec 20191509259.012.30$9,064
Nov 20191707355.302.75$9,602
Oct 20191329353.472.42$7,283
Sep 20191323055.052.66$7,346
Aug 20191443753.112.30$7,733
Jul 20191255256.272.46$7,162
Jun 20191289252.782.49$6,985
May 201912411958.482.74$7,578
Apr 20191369662.632.75$8,782
Mar 20191267856.803.06$7,396
Feb 20191714150.852.79$8,810
Jan 201925810546.033.23$12,215
Dec 20182979846.594.19$14,247
Nov 20181393552.934.24$7,506
Oct 20181585161.443.40$9,881
Sep 20181367459.543.11$8,327
Aug 20181257059.403.07$7,640
Jul 20181348465.142.93$8,975
Jun 20181167760.183.08$7,218
May 20181003965.382.90$6,651
Apr 2018902163.842.90$5,807
Mar 2018772861.222.79$4,792
Feb 2018863061.782.77$5,396
Jan 2018742762.874.01$4,761
Dec 2017813457.272.92$4,738
Nov 2017933755.423.12$5,269
Oct 20171727549.292.98$8,702
Sep 20171716747.523.09$8,333
Aug 20172606845.373.00$12,001
Jul 20171986143.873.09$8,875
Jun 20172066642.493.09$8,957
May 20172807945.373.26$12,961
Apr 20172034247.933.21$9,865
Mar 20173927646.772.98$18,561
Feb 201733010550.452.95$16,959
Jan 201739214449.413.42$19,861
Dec 201638713148.763.72$19,358
Nov 201651227642.492.64$22,485
Oct 201647813146.193.09$22,484
Sep 20162783541.553.10$11,659
Aug 20163884341.442.92$16,204
Jul 2016672041.622.92$27,969
Jun 2016231045.352.69$10,476
May 2016332042.521.99$14,117
Apr 2016188036.561.99$6,873
Mar 2016215033.011.79$7,097
Feb 2016588026.472.06$15,564
Jan 2016654027.352.36$17,887
Dec 2015578032.362.00$18,704
Nov 2015793038.792.17$30,760
Oct 2015451043.552.43$19,641
Sep 201593042.992.76$3,998
Aug 2015137040.162.87$5,502
Jul 2015400048.152.95$19,260
Jun 20153776156.152.88$21,344
May 20152458655.212.96$13,781
Apr 20152104449.822.71$10,581
Mar 20152498842.892.93$10,938
Feb 20152154544.662.98$9,736
Jan 20151227143.433.10$5,519
Dec 20142186754.693.59$12,163
Nov 20143077570.464.25$21,950
Oct 20143779678.303.90$29,894
Sep 20143634886.164.05$31,470
Aug 20145385289.394.04$48,302
Jul 20146528496.564.18$63,308
Jun 20145902098.164.74$58,009
May 20145762994.734.73$54,702
Apr 20146671895.944.81$64,079
Mar 20146669795.895.06$64,353
Feb 20142512397.406.19$24,590
Jan 201451714890.404.86$47,456
Dec 201349116491.824.35$45,798
Nov 201361118888.853.74$54,990
Oct 201361113897.423.78$60,045
Sep 201354766104.113.72$57,194
Aug 2013555107104.253.52$58,236
Jul 201361477102.523.72$63,234
Jun 20134443594.403.93$42,051
May 2013730094.834.15$69,226
Apr 20136596093.964.28$62,177
Mar 201360313193.623.91$56,965
Feb 20131548791.233.42$14,347
Jan 20131829291.603.42$16,986
Dec 201219410986.773.42$17,206
Nov 20121959386.953.62$17,292
Oct 20122619089.383.40$23,634
Sep 20123149394.672.92$29,998
Aug 20122938592.662.91$27,397
Jul 201240214485.133.02$34,657
Jun 201239516079.822.52$31,932
May 201279528891.612.49$73,547
Apr 2012720246101.652.00$73,679
Mar 2012722213105.052.22$76,319
Feb 2012887285101.102.57$90,408
Jan 20121,07640498.092.73$106,649
Dec 201163721296.873.24$62,393
Nov 20111,04435295.723.31$101,097
Oct 20111,05936784.983.65$91,333
Sep 2011860083.623.99$71,913
Aug 20111,31932783.404.15$111,361
Jul 20111,11046094.144.52$106,573
Jun 201196338792.904.64$91,258
May 20111,22354198.134.40$122,396
Apr 20111,481618105.964.33$159,605
Mar 20111,41350296.364.06$138,193
Feb 20111,13448885.644.18$99,156
Jan 20111,38355686.504.59$122,181
Dec 20101,13541285.734.35$99,095
Nov 20101,13536780.843.80$93,146
Oct 20101,33145978.103.51$105,562
Sep 20101,52553872.633.98$112,902
Aug 20101,42155873.684.42$107,165
Jul 201052327772.554.74$39,256
Jun 201016424570.364.91$12,742
May 2010615071.124.24$4,550
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20069069.376.34$624
Jun 2006462966.286.38$3,234
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20068056.707.08$454
Feb 2006554057.597.75$3,477
Jan 2006363060.598.93$2,449
Dec 20050054.9413.42$0
Nov 20059054.6910.59$492
Oct 2005502958.3413.80$3,317
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20055052.337.38$262
May 2005362445.226.65$1,788
Apr 2005462549.207.36$2,447
Mar 2005693050.377.15$3,690
Feb 2005632445.226.31$3,000
Jan 2005703543.166.32$3,242
Dec 2004793039.866.75$3,351
Nov 2004743045.286.33$3,541
Oct 2004813549.706.52$4,254
Sep 2004833643.245.28$3,779
Aug 2004753942.375.55$3,394
Jul 2004773438.286.08$3,154
Jun 2004733136.106.43$2,835
May 2004793437.486.49$3,182
Apr 2004693534.475.86$2,583
Mar 2004904134.365.53$3,319
Feb 20041423732.455.51$4,812
Jan 20041663632.036.30$5,544
Dec 2003366130.266.30$1,474
Nov 2003755128.804.60$2,394
Oct 200317412228.174.76$5,482
Sep 2003729226.314.75$2,331
Aug 20031637329.765.13$5,225
Jul 20031618129.415.17$5,154
Jun 200323010728.565.98$7,209
May 200325911826.595.97$7,592
Apr 200317212626.675.41$5,269
Mar 200321514331.146.10$7,567
Feb 200324814733.487.93$9,468
Jan 20031562230.315.58$4,851
Dec 20022632426.914.85$7,194
Nov 20021602524.664.14$4,049
Oct 20022213026.464.23$5,975
Sep 200203327.443.64$120
Aug 2002352925.963.16$1,000
Jul 20022882324.583.06$7,149
Jun 20021602123.733.34$3,867
May 20021632124.663.58$4,095
Apr 20021131923.653.51$2,739
Mar 20021482422.003.10$3,330
Feb 20021563818.222.38$2,933
Jan 20021231917.172.38$2,157
Dec 20011983016.932.36$3,423
Nov 20011942918.072.41$3,575
Oct 20012092819.782.53$4,205
Sep 20011942724.262.25$4,767
Aug 20011862524.873.05$4,702
Jul 20012463123.933.20$5,986
Jun 20012683424.563.82$6,712
May 20013093525.524.31$8,036
Apr 20012643324.685.34$6,692
Mar 20012182124.545.38$5,463
Feb 20014232627.755.77$11,888
Jan 20012122527.478.40$6,034
Dec 20001512626.889.12$4,296
Nov 20001292732.215.66$4,308
Oct 20001493231.235.15$4,818
Sep 20002158531.875.19$7,293
Aug 200032411529.644.54$10,126
Jul 20002198028.534.09$6,575
Jun 200027710929.304.40$8,595
May 200035810627.263.68$10,149
Apr 200032610224.513.12$8,308
Mar 200051710328.422.86$14,988
Feb 20004005327.622.73$11,193
Jan 200024210825.272.48$6,383
Dec 199925410424.282.42$6,419
Nov 199924211623.192.43$5,894
Oct 199923211620.982.80$5,193
Sep 199925013421.752.62$5,788
Aug 199927514519.262.88$5,713
Jul 199946717817.892.37$8,777
Jun 199944518215.942.36$7,523
May 199946618615.792.32$7,790
Apr 199944918415.102.21$7,186
Mar 199945518412.471.84$6,012
Feb 19994391629.981.82$4,676
Jan 199949217010.381.90$5,430
Dec 19983941529.201.77$3,894
Nov 199836318010.892.19$4,347
Oct 199838416412.421.97$5,092
Sep 199844415212.592.08$5,907
Aug 199844015011.301.91$5,258
Jul 199836213211.742.24$4,545
Jun 199833613811.242.24$4,085
May 199835214812.622.21$4,769
Apr 199835112013.042.51$4,878
Mar 199836214212.802.31$4,962
Feb 199834911813.952.30$5,140
Jan 199840112814.702.15$6,171
Dec 199723612416.322.41$4,151
Nov 199723011018.193.09$4,523
Oct 199723812419.253.15$4,972
Sep 199723013817.742.95$4,488
Aug 199724417217.862.55$4,797
Jul 199724613217.582.25$4,621
Jun 199724015617.242.26$4,490
May 199724114618.972.31$4,909
Apr 199715910517.882.08$3,062
Mar 19971437718.951.94$2,859
Feb 19971207120.492.21$2,615
Jan 19971186323.483.54$2,994
Dec 199617411423.32$4,058
Nov 19961429021.97$3,120
Oct 19961518023.31$3,520
Sep 19961468322.22$3,244
Aug 199615112220.26$3,059
Jul 199612410419.55$2,424
Jun 19961327818.73$2,472
May 19961288919.43$2,487
Apr 19962098221.51$4,496
Mar 19962248019.38$4,341
Feb 19962057316.98$3,481
Jan 19961997817.07$3,397
Dec 19952507817.19$4,298
Nov 19952216916.00$3,536
Oct 19952237415.43$3,441
Sep 19951926716.18$3,107
Aug 1995953915.92$1,512
Jul 19952068515.24$3,139
Jun 19952336516.41$3,824
May 19952235817.56$3,916
Apr 19952035417.73$3,599
Mar 19952306216.44$3,781
Feb 19952205816.58$3,648
Jan 19952774915.92$4,410
Dec 19942574615.03$3,863
Nov 19942324715.90$3,689
Oct 19942705115.58$4,207
Sep 19942525015.29$3,853
Aug 19942866116.13$4,613
Jul 19942625217.56$4,601
Jun 19942864317.09$4,888
May 19942414815.88$3,827
Apr 19942303814.14$3,252
Mar 19942804312.46$3,489
Feb 19942973612.50$3,713
Jan 19942545512.66$3,216
Dec 19932814712.33$3,465
Nov 19932203814.49$3,188
Oct 19932094315.85$3,313
Sep 19931834015.03$2,750
Aug 19931534315.66$2,396
Jul 19931044215.46$1,608
Jun 19931224916.79$2,048
May 19931364217.68$2,404
Apr 19931134418.05$2,040
Mar 19931334518.14$2,413
Feb 1993582317.90$1,038
Jan 1993831916.93$1,405

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 2021 — as filed, then multipliedworked
Oil                   14 bbl  × $ 69.49 =       $973
Casinghead gas         0 Mcf  × $  3.38 =         $0

────────────────────────────────────────────────────
Month total                                     $973

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. 08/O/17918 is the state's own key, not one this site invented.