MAHAFFEY ESTATE -A-

Operated by EQT PRODUCTION TEXAS, LLC (P-5 253406) in the DECK (CISCO) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 25491District 08Field 23842500OilCasinghead gasSaveExport
Value, all time
$140 k
Jan 1993 – Sep 2016
Value, last 12 filed months
$0
at the published price for each month
Months reported
285
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 11 leases and 13 wells, and the rule below applies to all of them.

Discovered
1972-09-28
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
OilDisposition3,704 bbl$94,735
Casinghead gasProduction12,473 Mcf$45,269
Total$140,004

58 Mcf of this lease's gas, across 26 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 31.6528, -101.2128. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.65283, -101.21281 · 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
100.0%
1 of 1 wells
Median depth
8,280 ft
1 wells filed one
Completion to plug
37.1 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
1100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1100.0%
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 8,280 ft.

Completions filed
Jul 1979
1 of 1 wells
Plug dates filed
Aug 2016
1 of 1 wells

Last completion to plug: a median of 37.1 years across the 1 well that filed both dates, with the middle half between 37.1 years and 37.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-4313078518,280 ftJul 1979Aug 2016Yes

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 (285)

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

285 months

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 20143089.394.04$268
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 2014016095.895.06$809
Feb 20141213297.406.19$1,986
Jan 2014013690.404.86$661
Dec 2013013791.824.35$597
Nov 2013011088.853.74$411
Oct 2013013297.423.78$499
Sep 20130119104.113.72$442
Aug 2013047104.253.52$166
Jul 2013063102.523.72$234
Jun 201308694.403.93$338
May 2013013694.834.15$564
Apr 2013014793.964.28$630
Mar 2013015393.623.91$599
Feb 20131314091.233.42$1,665
Jan 2013014891.603.42$506
Dec 2012015386.773.42$523
Nov 2012014386.953.62$518
Oct 2012015889.383.40$537
Sep 2012015294.672.92$444
Aug 2012015192.662.91$439
Jul 2012015085.133.02$453
Jun 20121314779.822.52$1,408
May 2012015591.612.49$386
Apr 20120684101.652.00$1,366
Mar 20120657105.052.22$1,460
Feb 20120609101.102.57$1,565
Jan 2012068498.092.73$1,870
Dec 2011067996.873.24$2,200
Nov 20113469695.723.31$5,559
Oct 2011038484.983.65$1,401
Sep 2011064883.623.99$2,583
Aug 2011068283.404.15$2,830
Jul 2011072394.144.52$3,266
Jun 2011070992.904.64$3,290
May 2011074698.134.40$3,286
Apr 20110728105.964.33$3,155
Mar 20110096.364.06$0
Feb 2011554485.644.18$4,894
Jan 201105386.504.59$243
Dec 201005085.734.35$217
Nov 201005180.843.80$194
Oct 201005378.103.51$186
Sep 201005372.633.98$211
Aug 201005673.684.42$247
Jul 2010565372.554.74$4,314
Jun 201005370.364.91$260
May 201005571.124.24$233
Apr 201005381.694.12$219
Mar 201005478.394.39$237
Feb 201004973.585.44$267
Jan 2010145474.365.96$1,363
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 20065056.656.92$283
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 200622060.085.04$1,322
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 200632056.707.08$1,814
Feb 20060057.597.75$0
Jan 200637060.598.93$2,242
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 200531061.4512.08$1,905
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 200535052.337.38$1,832
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 200538045.226.31$1,718
Jan 20050043.166.32$0
Dec 200410039.866.75$399
Nov 200437045.286.33$1,675
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 200437038.286.08$1,416
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 200436034.365.53$1,237
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 200325030.266.30$757
Nov 20030028.804.60$0
Oct 200338028.174.76$1,070
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 200330028.565.98$857
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 200340031.146.10$1,246
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 200240026.914.85$1,076
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 200239023.733.34$925
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 200241022.003.10$902
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 200142016.932.36$711
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 200140024.262.25$970
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 200128024.563.82$688
May 20010025.524.31$0
Apr 200170024.685.34$1,728
Mar 20010024.545.38$0
Feb 2001110027.755.77$3,053
Jan 20010027.478.40$0
Dec 20000026.889.12$0
Nov 2000128032.215.66$4,123
Oct 20000031.235.15$0
Sep 2000114031.875.19$3,633
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 200039027.263.68$1,063
Apr 20000024.513.12$0
Mar 200039028.422.86$1,108
Feb 20000027.622.73$0
Jan 200040025.272.48$1,011
Dec 19990024.282.42$0
Nov 199939023.192.43$904
Oct 199939020.982.80$818
Sep 19990021.752.62$0
Aug 199939019.262.88$751
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 199939015.792.32$616
Apr 19990015.102.21$0
Mar 199940012.471.84$499
Feb 19994009.981.82$399
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 199840010.892.19$436
Oct 19980012.421.97$0
Sep 199840012.592.08$504
Aug 19980011.301.91$0
Jul 199840011.742.24$470
Jun 199855011.242.24$618
May 199840012.622.21$505
Apr 19980013.042.51$0
Mar 199841012.802.31$525
Feb 199838013.952.30$530
Jan 199839014.702.15$573
Dec 199778016.322.41$1,273
Nov 199747018.193.09$855
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 199734017.862.55$607
Jul 199736017.582.25$633
Jun 19970017.242.26$0
May 199739018.972.31$740
Apr 199738017.882.08$679
Mar 1997115018.951.94$2,179
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 199638023.32$886
Nov 19961021.97$22
Oct 199637023.31$862
Sep 199638022.22$844
Aug 19960020.26$0
Jul 199637019.55$723
Jun 19960018.73$0
May 199637019.43$719
Apr 19962021.51$43
Mar 199638019.38$736
Feb 199637016.98$628
Jan 19963017.07$51
Dec 199537017.19$636
Nov 199536016.00$576
Oct 19950015.43$0
Sep 199537016.18$599
Aug 199538015.92$605
Jul 19950015.24$0
Jun 199532016.41$525
May 199537017.56$650
Apr 19950017.73$0
Mar 199537116.44$608
Feb 199579116.58$1,310
Jan 19950015.92$0
Dec 199456115.03$842
Nov 199439115.90$620
Oct 199441115.58$639
Sep 19940115.29$0
Aug 199473116.13$1,177
Jul 19940117.56$0
Jun 199435117.09$598
May 199437115.88$588
Apr 19940114.14$0
Mar 199476112.46$947
Feb 199436112.50$450
Jan 199439112.66$494
Dec 19930112.33$0
Nov 199337114.49$536
Oct 199337115.85$586
Sep 199333115.03$496
Aug 199332115.66$501
Jul 199327115.46$417
Jun 199328116.79$470
May 199328117.68$495
Apr 199315118.05$271
Mar 199314518.14$254
Feb 1993281517.90$501
Jan 1993131516.93$220

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.

Aug 2014 — as filed, then multipliedworked
Oil                    3 bbl  × $ 89.39 =       $268
Casinghead gas         0 Mcf  × $  4.04 =         $0

────────────────────────────────────────────────────
Month total                                     $268

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/25491 is the state's own key, not one this site invented.