HEFFELFINGER, GRACE P., -C-

Operated by RUSK ENERGY OPERATING LLC (P-5 735144) in the TIDEHAVEN ( 8,700) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 8070District 03Field 89826258OilCasinghead gasSaveExport
Value, all time
$668 k
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 2 leases and 2 wells, and the rule below applies to all of them.

Discovered
1960-04-13
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition15,104 bbl$667,766
Casinghead gasProduction40 Mcf$6
Total$667,771

38 Mcf of this lease's gas, across 38 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 28.8864, -96.1882. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

28.88637, -96.18822 · 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
no depth filed
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.

1 well

42-32101785C 2

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 2021455063.483.02$28,883
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 2019133056.272.46$7,484
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 201810061.443.40$614
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 2016147041.442.92$6,092
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 2016147036.561.99$5,374
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 201566032.362.00$2,136
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 2015141042.992.76$6,062
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 2015143055.212.96$7,895
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 2015157043.433.10$6,819
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 2014142089.394.04$12,693
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 2014150095.944.81$14,391
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 2013140091.824.35$12,855
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 20131490104.253.52$15,533
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 2013150094.834.15$14,225
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 2012140086.773.42$12,148
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 2012153092.662.91$14,177
Jul 20120085.133.02$0
Jun 2012175079.822.52$13,969
May 2012175091.612.49$16,032
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 2011160095.723.31$15,315
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 2011137094.144.52$12,897
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 20111440105.964.33$15,258
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 2011138086.504.59$11,937
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 2010147078.103.51$11,481
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 2010144072.554.74$10,447
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 2010153074.365.96$11,377
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 2009155072.544.11$11,244
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 2009159061.133.46$9,720
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 2009150046.773.59$7,016
Mar 20090042.144.06$0
Feb 2009105032.814.63$3,445
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 2008153055.496.86$8,490
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 20081600114.228.48$18,275
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 20081710123.1711.57$21,062
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 2008183092.538.77$16,933
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 2007137091.677.29$12,559
Oct 20070082.856.92$0
Sep 2007175075.846.24$13,272
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 2007158056.927.30$8,993
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 2006123056.656.92$6,968
Nov 20060054.207.62$0
Oct 2006176054.906.01$9,662
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 2006159069.376.34$11,030
Jun 20060066.286.38$0
May 2006174066.016.42$11,486
Apr 20060064.397.36$0
Mar 2006175056.707.08$9,923
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 2005159050.377.15$8,009
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 2004123039.866.75$4,903
Nov 20040045.286.33$0
Oct 2004141049.706.52$7,008
Sep 20040043.245.28$0
Aug 2004168042.375.55$7,118
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 2004113032.455.51$3,667
Jan 20040032.036.30$0
Dec 2003113030.266.30$3,419
Nov 20030028.804.60$0
Oct 2003128028.174.76$3,606
Sep 20030026.314.75$0
Aug 2003134029.765.13$3,988
Jul 20030029.415.17$0
Jun 2003171028.565.98$4,884
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 2003123031.146.10$3,830
Feb 20030033.487.93$0
Jan 2003119030.315.58$3,607
Dec 20020026.914.85$0
Nov 2002129024.664.14$3,181
Oct 20020026.464.23$0
Sep 2002123027.443.64$3,375
Aug 20020025.963.16$0
Jul 2002126024.583.06$3,097
Jun 20020023.733.34$0
May 2002128024.663.58$3,156
Apr 20020023.653.51$0
Mar 2002141022.003.10$3,102
Feb 20020018.222.38$0
Jan 2002171017.172.38$2,936
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 2001137019.782.53$2,710
Sep 20010024.262.25$0
Aug 2001143024.873.05$3,556
Jul 20010023.933.20$0
Jun 2001162024.563.82$3,979
May 20010025.524.31$0
Apr 2001166024.685.34$4,097
Mar 20010024.545.38$0
Feb 2001181027.755.77$5,023
Jan 20010027.478.40$0
Dec 2000167026.889.12$4,489
Nov 2000169032.215.66$5,443
Oct 20000031.235.15$0
Sep 2000182031.875.19$5,800
Aug 20000029.644.54$0
Jul 2000166028.534.09$4,736
Jun 2000181029.304.40$5,303
May 20000027.263.68$0
Apr 2000174024.513.12$4,265
Mar 20000028.422.86$0
Feb 2000161027.622.73$4,447
Jan 20000025.272.48$0
Dec 1999176024.282.42$4,273
Nov 19990023.192.43$0
Oct 1999180020.982.80$3,776
Sep 19990021.752.62$0
Aug 1999184019.262.88$3,544
Jul 19990017.892.37$0
Jun 1999163015.942.36$2,598
May 19990015.792.32$0
Apr 1999180015.102.21$2,718
Mar 19990012.471.84$0
Feb 199916009.981.82$1,597
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 1998189010.892.19$2,058
Oct 19980012.421.97$0
Sep 1998177012.592.08$2,228
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 1998161013.042.51$2,099
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 1998167014.702.15$2,455
Dec 19970016.322.41$0
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 1997169017.582.25$2,971
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 1997175018.951.94$3,316
Feb 19970120.492.21$2
Jan 19970123.483.54$4
Dec 19960123.32$0
Nov 1996180121.97$3,955
Oct 19960023.31$0
Sep 19960022.22$0
Aug 1996173020.26$3,505
Jul 19960019.55$0
Jun 19960018.73$0
May 1996174019.43$3,381
Apr 19960021.51$0
Mar 19960019.38$0
Feb 1996173016.98$2,938
Jan 19960017.07$0
Dec 19950117.19$0
Nov 1995175116.00$2,800
Oct 19950115.43$0
Sep 19950116.18$0
Aug 1995171115.92$2,722
Jul 19950115.24$0
Jun 19950116.41$0
May 1995148117.56$2,599
Apr 19950117.73$0
Mar 19950116.44$0
Feb 19950116.58$0
Jan 1995175115.92$2,786
Dec 19940115.03$0
Nov 19940115.90$0
Oct 1994174115.58$2,711
Sep 19940115.29$0
Aug 19940116.13$0
Jul 19940117.56$0
Jun 19940117.09$0
May 19940115.88$0
Apr 1994170114.14$2,404
Mar 19940112.46$0
Feb 19940112.50$0
Jan 19940112.66$0
Dec 19930112.33$0
Nov 1993170114.49$2,463
Oct 19930115.85$0
Sep 19930115.03$0
Aug 19930115.66$0
Jul 1993176115.46$2,721
Jun 19930116.79$0
May 19930117.68$0
Apr 19930118.05$0
Mar 1993178118.14$3,229
Feb 19930117.90$0
Jan 1993178116.93$3,014

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 2021 — as filed, then multipliedworked
Oil                  455 bbl  × $ 63.48 =    $28,883
Casinghead gas         0 Mcf  × $  3.02 =         $0

────────────────────────────────────────────────────
Month total                                  $28,883

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/8070 is the state's own key, not one this site invented.