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 211655District 10Field 131472852 tax incentive programmesCondensateGasSaveExport
Value, all time
$3.6 M
Aug 2005 – May 2026
Value, last 12 filed months
$29 k
at the published price for each month
Months reported
250
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 Gas112007-03-01167232
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
CondensateDisposition5,198 bbl$354,012
GasProduction563,356 Mcf$3,237,369
Total$3,591,382

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 35.6980, -100.2395. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.69803, -100.23945 · 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
Aug 2005
1 of 1 wells

1 well

42-21133316511,600 ftAug 2005

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 (250)

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

250 months

May 20265854106.413.05$3,133
Apr 2026383998.932.87$2,704
Mar 2026280589.753.15$2,715
Feb 2026280663.503.75$3,150
Jan 2026229559.138.00$2,478
Dec 2025041156.664.41$1,814
Nov 2025256958.593.93$2,351
Oct 2025075159.383.30$2,482
Sep 2025065062.743.08$2,000
Aug 2025052463.933.01$1,580
Jul 2025274766.743.32$2,610
Jun 2025074866.483.13$2,340
May 20252774560.553.23$4,043
Apr 2025060362.363.54$2,137
Mar 2025371667.704.27$3,259
Feb 2025057870.884.34$2,509
Jan 2025261674.324.28$2,784
Dec 202421,05568.993.12$3,431
Nov 2024094269.052.20$2,071
Oct 2024481,01171.372.28$5,732
Sep 2024099269.612.36$2,345
Aug 202401,01975.632.06$2,103
Jul 202421,05379.932.15$2,420
Jun 2024076978.082.63$2,026
May 2024485078.812.20$2,184
Apr 2024073484.451.66$1,218
Mar 20242882080.301.55$3,515
Feb 202421,00976.091.78$1,952
Jan 2024399773.023.30$3,507
Dec 2023141,17371.262.61$4,060
Nov 202321,10877.892.81$3,267
Oct 202391,19785.443.09$4,464
Sep 2023451,08089.042.74$6,961
Aug 202321,04580.522.67$2,954
Jul 202301,01774.852.64$2,687
Jun 2023698268.962.26$2,632
May 202331,16470.622.23$2,805
Apr 202341,18878.122.24$2,971
Mar 2023471,19672.852.39$6,286
Feb 202331,11975.112.47$2,984
Jan 202331,05976.533.39$3,817
Dec 202201,12476.415.73$6,439
Nov 202241,28585.005.65$7,595
Oct 202201,07687.185.86$6,309
Sep 2022397384.888.16$8,198
Aug 20222997894.529.13$11,667
Jul 20220956101.587.54$7,210
Jun 20223961115.097.98$8,011
May 202201,090109.378.43$9,192
Apr 202221,240104.226.84$8,687
Mar 2022291,225108.885.08$9,376
Feb 202202,00091.054.86$9,718
Jan 2022092081.844.54$4,175
Dec 202131,41371.323.90$5,723
Nov 202121,23577.435.24$6,622
Oct 202121,26179.795.71$7,365
Sep 2021571,26269.865.35$10,735
Aug 202131,39666.024.22$6,090
Jul 202101,43570.783.98$5,714
Jun 202121,28469.493.38$4,480
May 202131,19863.483.02$3,806
Apr 202131,16660.362.76$3,397
Mar 202171,30861.302.72$3,983
Feb 2021454157.805.55$3,233
Jan 202141,01650.412.81$3,057
Dec 202021,15144.642.68$3,169
Nov 202021,21238.772.71$3,358
Oct 202001,25336.972.48$3,105
Sep 202001,21237.091.99$2,413
Aug 202021,12039.982.39$2,751
Jul 202001,18238.371.83$2,157
Jun 202001,07034.901.69$1,809
May 202011,11616.921.81$2,042
Apr 202011,10514.751.80$2,009
Mar 202011,06430.341.86$2,005
Feb 202041,05849.881.98$2,295
Jan 202041,19457.252.09$2,730
Dec 201941,20259.012.30$3,006
Nov 201911,18955.302.75$3,326
Oct 201971,22453.472.42$3,335
Sep 201901,18255.052.66$3,141
Aug 201931,23353.112.30$3,001
Jul 201911,24456.272.46$3,117
Jun 2019421,25352.782.49$5,338
May 2019191,34358.482.74$4,791
Apr 201921,29062.632.75$3,674
Mar 201911,30256.803.06$4,044
Feb 201901,22850.852.79$3,429
Jan 201901,28846.033.23$4,158
Dec 2018259646.594.19$2,588
Nov 201801,42552.934.24$6,038
Oct 2018311,41361.443.40$6,706
Sep 201811,47159.543.11$4,631
Aug 201811,46759.403.07$4,558
Jul 201811,48365.142.93$4,413
Jun 201881,43260.183.08$4,888
May 2018221,48365.382.90$5,740
Apr 201811,39963.842.90$4,122
Mar 201811,47561.222.79$4,172
Feb 201811,20761.782.77$3,400
Jan 201811,13662.874.01$4,617
Dec 201711,28757.272.92$3,817
Nov 201701,55155.423.12$4,837
Oct 201701,21649.292.98$3,628
Sep 20171711,63647.523.09$13,177
Aug 201701,30845.373.00$3,930
Jul 2017084143.873.09$2,596
Jun 2017076642.493.09$2,365
May 201701,02245.373.26$3,335
Apr 201701,17347.933.21$3,767
Mar 201701,11246.772.98$3,318
Feb 201701,13150.452.95$3,339
Jan 201701,12649.413.42$3,850
Dec 201601,12248.763.72$4,177
Nov 201601,09242.492.64$2,888
Oct 201601,19946.193.09$3,705
Sep 201601,17041.553.10$3,628
Aug 201601,35341.442.92$3,957
Jul 201601,46341.622.92$4,278
Jun 201601,40945.352.69$3,784
May 201601,58942.521.99$3,164
Apr 201601,44136.561.99$2,869
Mar 201601,57633.011.79$2,827
Feb 201601,47726.472.06$3,048
Jan 201601,40327.352.36$3,317
Dec 201501,57932.362.00$3,160
Nov 201501,60538.792.17$3,479
Oct 201501,44943.552.43$3,516
Sep 20151811,24042.992.76$11,202
Aug 201501,69640.162.87$4,872
Jul 201501,65048.152.95$4,859
Jun 201501,45056.152.88$4,180
May 201501,34255.212.96$3,966
Apr 201501,61649.822.71$4,374
Mar 201501,39542.892.93$4,094
Feb 201501,34944.662.98$4,015
Jan 201501,44443.433.10$4,477
Dec 201401,45754.693.59$5,233
Nov 201401,32870.464.25$5,646
Oct 201401,59478.303.90$6,218
Sep 201401,26786.164.05$5,126
Aug 201401,47389.394.04$5,944
Jul 201401,60296.564.18$6,696
Jun 201401,36798.164.74$6,475
May 201401,57694.734.73$7,449
Apr 201401,43295.944.81$6,887
Mar 201401,70395.895.06$8,612
Feb 201401,12297.406.19$6,947
Jan 201401,51190.404.86$7,345
Dec 201301,64491.824.35$7,159
Nov 201301,65988.853.74$6,202
Oct 201301,57897.423.78$5,964
Sep 201301,550104.113.72$5,763
Aug 201301,799104.253.52$6,337
Jul 201302,076102.523.72$7,718
Jun 20131782,09094.403.93$25,024
May 201302,21394.834.15$9,182
Apr 201301,78993.964.28$7,662
Mar 201302,14993.623.91$8,409
Feb 201301,72491.233.42$5,896
Jan 201301,87191.603.42$6,399
Dec 201201,63986.773.42$5,606
Nov 201201,44386.953.62$5,231
Oct 201201,71889.383.40$5,841
Sep 201201,70694.672.92$4,979
Aug 201201,92992.662.91$5,610
Jul 20121761,81585.133.02$20,466
Jun 201201,81079.822.52$4,559
May 201201,76891.612.49$4,399
Apr 201201,926101.652.00$3,846
Mar 201201,812105.052.22$4,026
Feb 201201,717101.102.57$4,413
Jan 201201,63598.092.73$4,470
Dec 201103,59496.873.24$11,644
Nov 201102,09495.723.31$6,934
Oct 201101,93784.983.65$7,067
Sep 201101,62883.623.99$6,489
Aug 20111801,33483.404.15$20,547
Jul 201103,84594.144.52$17,369
Jun 201104,35892.904.64$20,221
May 201104,13198.134.40$18,196
Apr 201103,376105.964.33$14,629
Mar 201102,56596.364.06$10,407
Feb 20117044185.644.18$7,838
Jan 201103,35386.504.59$15,386
Dec 201002,73485.734.35$11,887
Nov 20101893,51680.843.80$28,623
Oct 201002,63578.103.51$9,246
Sep 201003,42572.633.98$13,630
Aug 201001,16173.684.42$5,131
Jul 201002,33772.554.74$11,069
Jun 201003,35670.364.91$16,479
May 201003,44671.124.24$14,595
Apr 201002,43981.694.12$10,055
Mar 20101453,10378.394.39$24,985
Feb 201001,28873.585.44$7,010
Jan 201003,73574.365.96$22,276
Dec 200903,64671.445.48$19,994
Nov 200902,72174.593.75$10,208
Oct 200902,75572.544.11$11,324
Sep 200905,51565.543.06$16,902
Aug 20091893,28267.423.22$23,306
Jul 200902,95161.133.46$10,224
Jun 200902,72366.163.90$10,606
May 200902,27054.743.93$8,911
Apr 200903,72546.773.59$13,363
Mar 200904,02842.144.06$16,350
Feb 200905,21332.814.63$24,152
Jan 200904,94835.865.37$26,576
Dec 20081873,09637.105.98$25,443
Nov 200804,70055.496.86$32,244
Oct 200803,73075.246.92$25,819
Sep 200803,138101.767.88$24,718
Aug 200804,691114.228.48$39,794
Jul 200803,070131.0811.39$34,966
Jun 200803,567131.3313.03$46,487
May 20081735,552123.1711.57$85,569
Apr 200804,152110.3110.45$43,409
Mar 200804,541101.909.66$43,885
Feb 200804,34892.538.77$38,134
Jan 200804,00590.388.21$32,864
Dec 200703,26088.337.30$23,804
Nov 20071833,57291.677.29$42,822
Oct 200704,67582.856.92$32,360
Sep 200703,23075.846.24$20,169
Aug 20071833,47269.066.39$34,817
Jul 200706,16970.906.39$39,407
Jun 200706,08162.007.55$45,902
May 200705,59158.747.85$43,869
Apr 20071834,07359.617.81$42,699
Mar 20071734,01956.927.30$39,194
Feb 200705,17655.108.22$42,526
Jan 200704,05950.306.73$27,304
Dec 200604,37256.656.92$30,247
Nov 20061823,91554.207.62$39,687
Oct 200604,73454.906.01$28,469
Sep 20061834,75860.085.04$34,962
Aug 200604,83068.717.34$35,452
Jul 20061786,26569.376.34$52,085
Jun 20062146,76466.286.38$57,364
May 200607,80366.016.42$50,134
Apr 20061857,18464.397.36$64,790
Mar 20061869,44356.707.08$77,430
Feb 200607,76157.597.75$60,156
Jan 200635812,26260.598.93$131,232
Dec 2005010,96554.9413.42$147,100
Nov 20051934,44754.6910.59$57,642
Oct 200509,04758.3413.80$124,810
Sep 200535317,36861.4512.08$231,480
Aug 2005012,21261.519.80$119,639

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             5 bbl  × $106.41 =       $532
Gas                  854 Mcf  × $  3.05 =     $2,601

────────────────────────────────────────────────────
Month total                                   $3,133

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/211655 is the state's own key, not one this site invented.