HEFLEY 4

Operated by MMGL TXPH, LLC (P-5 101619) in the BUFFALO WALLOW (GRANITE WASH) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 203125District 10Field 131472852 tax incentive programmesCondensateGasSaveExport
Value, all time
$4.0 M
Jul 2004 – May 2026
Value, last 12 filed months
$2 k
at the published price for each month
Months reported
263
no gaps in the span
Streams
2
condensate, 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 1,387 leases and 1,388 wells, and the rule below applies to all of them.

Discovered
1974-09-09
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 2016-03-29.

The Commission's schedule remark for this field reads: 01-30-2024

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
High Cost Gas112005-03-22160686
NGPA1none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
CondensateDisposition6,979 bbl$416,973
GasProduction582,093 Mcf$3,616,993
Total$4,033,966

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 35.6969, -100.2494. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.69691, -100.24943 · 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
11,600 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 11,600 ft.

Completions filed
Jul 2004
1 of 1 wells

1 well

42-21132987211,600 ftJul 2004

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 (263)

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

263 months

May 20260158106.413.05$481
Apr 202604998.932.87$141
Mar 20260089.753.15$0
Feb 202604063.503.75$150
Jan 20260659.138.00$48
Dec 202508456.664.41$371
Nov 202506558.593.93$255
Oct 202505159.383.30$169
Sep 202504462.743.08$135
Aug 202503263.933.01$96
Jul 202506866.743.32$225
Jun 202508066.483.13$250
May 202518460.553.23$332
Apr 202507562.363.54$266
Mar 202519767.704.27$482
Feb 202508770.884.34$378
Jan 2025011574.324.28$492
Dec 2024019068.993.12$593
Nov 2024019069.052.20$418
Oct 20249620471.372.28$7,317
Sep 2024021069.612.36$497
Aug 2024026875.632.06$553
Jul 2024034079.932.15$730
Jun 2024023978.082.63$630
May 2024034078.812.20$747
Apr 2024029484.451.66$488
Mar 202408880.301.55$136
Feb 202407276.091.78$128
Jan 202408173.023.30$267
Dec 20232525071.262.61$2,434
Nov 2023045777.892.81$1,283
Oct 2023540285.443.09$1,668
Sep 2023381,06389.042.74$6,291
Aug 202321,23880.522.67$3,470
Jul 202301,10074.852.64$2,906
Jun 2023477468.962.26$2,024
May 2023179970.622.23$1,850
Apr 2023173978.122.24$1,732
Mar 20233283772.852.39$4,334
Feb 2023174475.112.47$1,910
Jan 2023178676.533.39$2,739
Dec 2022067576.415.73$3,867
Nov 2022185885.005.65$4,929
Oct 202201,45087.185.86$8,502
Sep 202221,93384.888.16$15,950
Aug 2022451,78094.529.13$20,500
Jul 202201,999101.587.54$15,077
Jun 202221,599115.097.98$12,986
May 202201,434109.378.43$12,093
Apr 20221932104.226.84$6,477
Mar 202265788108.885.08$11,077
Feb 2022029091.054.86$1,409
Jan 2022057881.844.54$2,623
Dec 2021186071.323.90$3,425
Nov 2021182977.435.24$4,419
Oct 202121,01679.795.71$5,965
Sep 202101,23069.865.35$6,582
Aug 202121,28266.024.22$5,543
Jul 202101,11770.783.98$4,448
Jun 2021191169.493.38$3,149
May 2021176063.483.02$2,357
Apr 2021169960.362.76$1,989
Mar 2021378061.302.72$2,303
Feb 2021120357.805.55$1,184
Jan 2021152050.412.81$1,512
Dec 2020144244.642.68$1,227
Nov 2020163138.772.71$1,747
Oct 2020069836.972.48$1,730
Sep 2020070437.091.99$1,402
Aug 2020166839.982.39$1,633
Jul 2020069338.371.83$1,265
Jun 2020056634.901.69$957
May 2020162016.921.81$1,142
Apr 2020051214.751.80$924
Mar 2020047130.341.86$874
Feb 2020145849.881.98$957
Jan 2020356457.252.09$1,353
Dec 2019155659.012.30$1,340
Nov 2019154355.302.75$1,549
Oct 20191163153.472.42$2,114
Sep 2019066955.052.66$1,778
Aug 2019157353.112.30$1,374
Jul 2019168756.272.46$1,746
Jun 20196855852.782.49$4,979
May 2019172458.482.74$2,042
Apr 2019163962.632.75$1,820
Mar 2019060956.803.06$1,865
Feb 2019059850.852.79$1,670
Jan 2019053746.033.23$1,734
Dec 2018132946.594.19$1,424
Nov 2018060752.934.24$2,572
Oct 2018739661.443.40$1,776
Sep 2018033559.543.11$1,041
Aug 2018063859.403.07$1,956
Jul 2018066365.142.93$1,944
Jun 20185358660.183.08$4,993
May 2018164065.382.90$1,922
Apr 2018158663.842.90$1,764
Mar 2018147461.222.79$1,382
Feb 2018640061.782.77$1,477
Jan 2018151662.874.01$2,132
Dec 20174042457.272.92$3,530
Nov 2017061455.423.12$1,915
Oct 2017065049.292.98$1,939
Sep 20177113547.523.09$3,791
Aug 2017057145.373.00$1,716
Jul 2017042443.873.09$1,309
Jun 2017040742.493.09$1,257
May 2017051145.373.26$1,668
Apr 2017052647.933.21$1,689
Mar 2017049746.772.98$1,483
Feb 2017044950.452.95$1,326
Jan 2017048049.413.42$1,641
Dec 2016049248.763.72$1,832
Nov 2016049942.492.64$1,320
Oct 2016052946.193.09$1,635
Sep 2016053741.553.10$1,665
Aug 2016052341.442.92$1,529
Jul 2016057241.622.92$1,673
Jun 2016052245.352.69$1,402
May 2016060442.521.99$1,203
Apr 2016051136.561.99$1,017
Mar 2016054933.011.79$985
Feb 2016039026.472.06$805
Jan 2016047327.352.36$1,118
Dec 2015047532.362.00$951
Nov 2015045738.792.17$990
Oct 2015046343.552.43$1,124
Sep 2015048542.992.76$1,338
Aug 2015052640.162.87$1,511
Jul 2015048248.152.95$1,420
Jun 2015048356.152.88$1,392
May 2015045255.212.96$1,336
Apr 2015048449.822.71$1,310
Mar 2015042042.892.93$1,233
Feb 2015035844.662.98$1,065
Jan 2015027243.433.10$843
Dec 2014038254.693.59$1,372
Nov 2014038670.464.25$1,641
Oct 2014038078.303.90$1,482
Sep 2014038986.164.05$1,574
Aug 2014043789.394.04$1,763
Jul 2014042596.564.18$1,776
Jun 2014039998.164.74$1,890
May 2014042694.734.73$2,014
Apr 2014042595.944.81$2,044
Mar 2014028495.895.06$1,436
Feb 2014024997.406.19$1,542
Jan 2014035790.404.86$1,735
Dec 2013035191.824.35$1,528
Nov 2013034888.853.74$1,301
Oct 201301,76597.423.78$6,671
Sep 20130376104.113.72$1,398
Aug 20130358104.253.52$1,261
Jul 20130259102.523.72$963
Jun 2013035494.403.93$1,392
May 201317737294.834.15$18,328
Apr 2013022293.964.28$951
Mar 2013031893.623.91$1,244
Feb 2013012991.233.42$441
Jan 2013034291.603.42$1,170
Dec 2012026586.773.42$906
Nov 2012029486.953.62$1,066
Oct 2012031489.383.40$1,068
Sep 2012031794.672.92$925
Aug 2012034392.662.91$998
Jul 2012033885.133.02$1,021
Jun 2012035279.822.52$887
May 2012025091.612.49$622
Apr 20120214101.652.00$427
Mar 20120411105.052.22$913
Feb 20120123101.102.57$316
Jan 2012015998.092.73$435
Dec 2011019196.873.24$619
Nov 2011036195.723.31$1,195
Oct 2011024884.983.65$905
Sep 201101,71883.623.99$6,848
Aug 20111801,12583.404.15$19,680
Jul 201101,64894.144.52$7,444
Jun 201101,48892.904.64$6,904
May 201101,09798.134.40$4,832
Apr 201102,073105.964.33$8,983
Mar 201101,38196.364.06$5,603
Feb 201105,41685.644.18$22,639
Jan 201101,96386.504.59$9,008
Dec 201002,69885.734.35$11,730
Nov 201001,96980.843.80$7,473
Oct 201001,16078.103.51$4,070
Sep 201002,24172.633.98$8,918
Aug 2010070273.684.42$3,102
Jul 2010091672.554.74$4,339
Jun 2010078070.364.91$3,830
May 201003,25071.124.24$13,764
Apr 201004,92881.694.12$20,317
Mar 201004,96678.394.39$21,794
Feb 201004373.585.44$234
Jan 201001,10574.365.96$6,590
Dec 200902,22571.445.48$12,201
Nov 200902,17174.593.75$8,145
Oct 200901,62872.544.11$6,691
Sep 200904,42065.543.06$13,546
Aug 20091465,12667.423.22$26,341
Jul 200905,59161.133.46$19,370
Jun 200904,80466.163.90$18,712
May 20091955,63354.743.93$32,788
Apr 200904,00746.773.59$14,375
Mar 200903,94142.144.06$15,997
Feb 200904,46332.814.63$20,677
Jan 200903,88235.865.37$20,850
Dec 200805,25637.105.98$31,416
Nov 20081735,96555.496.86$50,522
Oct 200807,30575.246.92$50,565
Sep 200806,711101.767.88$52,863
Aug 200802,913114.228.48$24,711
Jul 20081773,070131.0811.39$58,167
Jun 200802,573131.3313.03$33,533
May 200802,219123.1711.57$25,683
Apr 200801,830110.3110.45$19,132
Mar 200801,770101.909.66$17,105
Feb 200802,33792.538.77$20,497
Jan 20081902,19290.388.21$35,159
Dec 200703,21288.337.30$23,454
Nov 20071863,43191.677.29$42,068
Oct 20071813,50782.856.92$39,271
Sep 200703,24975.846.24$20,287
Aug 20071883,33969.066.39$34,313
Jul 200702,91970.906.39$18,646
Jun 200703,54362.007.55$26,744
May 200702,22558.747.85$17,458
Apr 20071833,06059.617.81$34,793
Mar 200703,14256.927.30$22,943
Feb 200702,99355.108.22$24,590
Jan 200702,78950.306.73$18,761
Dec 200603,91956.656.92$27,113
Nov 200602,75754.207.62$21,001
Oct 200604,23554.906.01$25,468
Sep 2006175,16660.085.04$27,044
Aug 20061905,52568.717.34$53,608
Jul 200605,27169.376.34$33,433
Jun 200605,07366.286.38$32,385
May 20061894,81566.016.42$43,412
Apr 200604,73564.397.36$34,852
Mar 20061944,57056.707.08$43,369
Feb 20061996,75157.597.75$63,788
Jan 200605,63460.598.93$50,330
Dec 200506,97654.9413.42$93,586
Nov 200508,26654.6910.59$87,524
Oct 20051828,80758.3413.80$132,117
Sep 200506,26661.4512.08$75,687
Aug 20051757,68261.519.80$86,024
Jul 20051838,81955.697.84$79,364
Jun 200508,72852.337.38$64,422
May 2005010,46345.226.65$69,591
Apr 200518210,39149.207.36$85,437
Mar 200518312,33050.377.15$97,437
Feb 200516712,86945.226.31$88,780
Jan 2005016,08443.166.32$101,686
Dec 200434715,99239.866.75$121,795
Nov 200418720,44245.286.33$137,874
Oct 200436523,59449.706.52$171,858
Sep 200437425,87143.245.28$152,872
Aug 20041,08144,72042.375.55$294,027
Jul 200417514,19138.286.08$93,040

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
Condensate             0 bbl  × $106.41 =         $0
Gas                  158 Mcf  × $  3.05 =       $481

────────────────────────────────────────────────────
Month total                                     $481

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/G/203125 is the state's own key, not one this site invented.