MURPHY "G"

Operated by BURK ROYALTY CO., LTD. (P-5 108799) in the COLDWATER CREEK (MARMATON) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4539District 10Field 19454500NGPA filingOilCasinghead gasSaveExport
Value, all time
$4.4 M
Jan 1993 – May 2026
Value, last 12 filed months
$125 k
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 13 leases and 15 wells, and the rule below applies to all of them.

Discovered
1975-11-01
as the register files it
Field class
Oil and gas
the register's own label
Between wells
2,640 ft
minimum
From a lease line
1,320 ft
minimum

A drilling unit in this field needs at least 160 acres.

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
NGPA2none

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
OilDisposition76,440 bbl$3,084,916
Casinghead gasProduction377,205 Mcf$1,307,841
Total$4,392,757

88,067 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 (2)

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 36.3782, -101.8099. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

36.37818, -101.80987 · 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
50.0%
1 of 2 wells
With a plug date
50.0%
1 of 2 wells
Median depth
7,582 ft
2 wells filed one
Completion to plug
14.5 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
150.0%
A plug date is filed
150.0%
BothOn the schedule and plugged. Neither fact cancels the other.
150.0%
NeitherNo plug date, and not on the schedule.
150.0%

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 7,582 and 7,582 ft, median 7,582 ft, over the 2 wells that filed a depth.

Completions filed
Jan 1977
1 of 2 wells; 1 filed none
Plug dates filed
Jul 1991
1 of 2 wells; 1 filed none

Last completion to plug: a median of 14.5 years across the 1 well that filed both dates, with the middle half between 14.5 years and 14.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-4213024527,582 ft
42-421300311 T7,582 ftJan 1977Jul 1991Yes

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 202617354198.932.87$18,667
Mar 2026063689.753.15$2,003
Feb 202617057663.503.75$12,955
Jan 202651653759.138.00$34,806
Dec 2025064456.664.41$2,842
Nov 2025066258.593.93$2,599
Oct 202517245059.383.30$11,701
Sep 202518258062.743.08$13,203
Aug 202518013963.933.01$11,926
Jul 202518823266.743.32$13,316
Jun 2025022366.483.13$698
May 2025010560.553.23$339
Apr 202518032762.363.54$12,383
Mar 202519356567.704.27$15,478
Feb 2025040370.884.34$1,749
Jan 2025015274.324.28$650
Dec 202418454368.993.12$14,389
Nov 202418656569.052.20$14,085
Oct 2024061071.372.28$1,392
Sep 202417655269.612.36$13,556
Aug 202418349175.632.06$14,854
Jul 2024060779.932.15$1,303
Jun 202418159478.082.63$15,697
May 202418132578.812.20$14,979
Apr 202418067684.451.66$16,323
Mar 202418342280.301.55$15,347
Feb 2024049076.091.78$874
Jan 2024039373.023.30$1,296
Dec 202318453671.262.61$14,511
Nov 202318750977.892.81$15,994
Oct 2023057485.443.09$1,772
Sep 202318038789.042.74$17,086
Aug 2023054580.522.67$1,457
Jul 202318256074.852.64$15,102
Jun 2023033568.962.26$757
May 202318550770.622.23$14,194
Apr 2023052978.122.24$1,184
Mar 202316954472.852.39$13,614
Feb 202318348475.112.47$14,939
Jan 2023038676.533.39$1,308
Dec 202217754976.415.73$16,670
Nov 2022052585.005.65$2,964
Oct 202218155887.185.86$19,052
Sep 202218855084.888.16$20,447
Aug 2022055794.529.13$5,084
Jul 2022178454101.587.54$21,505
Jun 2022179530115.097.98$24,829
May 20220542109.378.43$4,571
Apr 2022125542104.226.84$16,733
Mar 2022175562108.885.08$21,907
Feb 2022014591.054.86$705
Jan 202217154781.844.54$16,477
Dec 202116958271.323.90$14,322
Nov 2021055077.435.24$2,880
Oct 202118631879.795.71$16,658
Sep 202109269.865.35$492
Aug 202117819866.024.22$12,587
Jul 202118421870.783.98$13,892
Jun 2021020969.493.38$707
May 202118021963.483.02$12,087
Apr 202118051660.362.76$12,288
Mar 2021050661.302.72$1,375
Feb 202116945657.805.55$12,298
Jan 202118537250.412.81$10,371
Dec 2020050044.642.68$1,338
Nov 202018353138.772.71$8,532
Oct 202017853736.972.48$7,912
Sep 2020019037.091.99$378
Aug 202018510439.982.39$7,644
Jul 2020014138.371.83$257
Jun 202018214334.901.69$6,594
May 202018415316.921.81$3,391
Apr 202017115014.751.80$2,793
Mar 2020015430.341.86$286
Feb 202017714649.881.98$9,118
Jan 202017915957.252.09$10,581
Dec 2019014759.012.30$339
Nov 201917116855.302.75$9,918
Oct 201918517353.472.42$10,310
Sep 201918315555.052.66$10,486
Aug 20190053.112.30$0
Jul 20191804656.272.46$10,242
Jun 20191842252.782.49$9,766
May 2019012158.482.74$332
Apr 201918112662.632.75$11,683
Mar 201918413656.803.06$10,868
Feb 2019015050.852.79$419
Jan 20191917746.033.23$9,040
Dec 2018013446.594.19$561
Nov 201817815552.934.24$10,078
Oct 201818712961.443.40$11,928
Sep 2018016459.543.11$510
Aug 201817816059.403.07$11,064
Jul 201817416765.142.93$11,824
Jun 201817818260.183.08$11,272
May 201808265.382.90$238
Apr 201818015463.842.90$11,938
Mar 201817916861.222.79$11,427
Feb 2018013961.782.77$384
Jan 201835916062.874.01$23,212
Dec 2017018957.272.92$552
Nov 201718914655.423.12$10,930
Oct 201715819149.292.98$8,358
Sep 201717420847.523.09$8,911
Aug 201718218445.373.00$8,810
Jul 201718820843.873.09$8,890
Jun 201718615542.493.09$8,382
May 201705145.373.26$166
Apr 201717916547.933.21$9,109
Mar 2017185646.772.98$8,670
Feb 20171817550.452.95$9,353
Jan 201718512149.413.42$9,555
Dec 20160448.763.72$15
Nov 201617510242.492.64$7,705
Oct 2016017346.193.09$535
Sep 201635317641.553.10$15,213
Aug 201618219941.442.92$8,124
Jul 201616918941.622.92$7,586
Jun 201618022945.352.69$8,778
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160333.011.79$5
Feb 201619712126.472.06$5,464
Jan 20161803727.352.36$5,010
Dec 201518917532.362.00$6,466
Nov 2015017838.792.17$386
Oct 201518219243.552.43$8,392
Sep 201518125142.992.76$8,474
Aug 201536623540.162.87$15,374
Jul 201518626348.152.95$9,730
Jun 20150056.152.88$0
May 20151852555.212.96$10,288
Apr 20150049.822.71$0
Mar 20153624742.892.93$15,664
Feb 201519220144.662.98$9,173
Jan 201536932843.433.10$17,043
Dec 2014010854.693.59$388
Nov 20141788170.464.25$12,886
Oct 201402078.303.90$78
Sep 20140986.164.05$36
Aug 201401489.394.04$56
Jul 2014178996.564.18$17,225
Jun 201408398.164.74$393
May 201419015594.734.73$18,731
Apr 201435824795.944.81$35,534
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 2013189688.853.74$16,815
Oct 20131934397.423.78$18,965
Sep 2013190182104.113.72$20,458
Aug 2013549312104.253.52$58,332
Jul 2013065102.523.72$242
Jun 20130094.403.93$0
May 20130394.834.15$12
Apr 20130093.964.28$0
Mar 20131917893.623.91$18,187
Feb 201319411391.233.42$18,085
Jan 2013017691.603.42$602
Dec 201237237686.773.42$33,564
Nov 201219339286.953.62$18,202
Oct 201256339289.383.40$51,654
Sep 2012012194.672.92$353
Aug 201203392.662.91$96
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
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 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 201101485.644.18$59
Jan 201118417786.504.59$16,728
Dec 201019120285.734.35$17,253
Nov 201034633480.843.80$29,238
Oct 2010019578.103.51$684
Sep 20101913872.633.98$14,024
Aug 201038538273.684.42$30,055
Jul 201006072.554.74$284
Jun 201038127470.364.91$28,153
May 2010017471.124.24$737
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100273.585.44$11
Jan 20100074.365.96$0
Dec 200903771.445.48$203
Nov 20091961174.593.75$14,661
Oct 2009014472.544.11$592
Sep 200918314165.543.06$12,426
Aug 200919327667.423.22$13,900
Jul 200919328561.133.46$12,785
Jun 200919227366.163.90$13,766
May 200917830954.743.93$10,957
Apr 200919227446.773.59$9,963
Mar 200935926442.144.06$16,200
Feb 20090632.814.63$28
Jan 20090035.865.37$0
Dec 2008061637.105.98$3,682
Nov 20081951,21955.496.86$19,183
Oct 20081961,22275.246.92$23,206
Sep 20081971,159101.767.88$29,176
Aug 2008192926114.228.48$29,786
Jul 20081961,003131.0811.39$37,115
Jun 2008192900131.3313.03$36,945
May 2008195771123.1711.57$32,942
Apr 20080739110.3110.45$7,726
Mar 2008387678101.909.66$45,988
Feb 2008054992.538.77$4,815
Jan 200820146290.388.21$21,957
Dec 200720131188.337.30$20,025
Nov 200719634591.677.29$20,483
Oct 200720131082.856.92$18,799
Sep 200719724575.846.24$16,470
Aug 200719619869.066.39$14,801
Jul 200719749270.906.39$17,110
Jun 20071931,11862.007.55$20,405
May 200716090358.747.85$16,484
Apr 200740159359.617.81$28,532
Mar 2007045956.927.30$3,352
Feb 200740124255.108.22$24,083
Jan 2007020450.306.73$1,372
Dec 200602,52456.656.92$17,462
Nov 20061882,73854.207.62$31,046
Oct 20061912,75354.906.01$27,042
Sep 20061972,21360.085.04$22,983
Aug 20061912,52468.717.34$31,650
Jul 20061882,28069.376.34$27,503
Jun 20061941,27966.286.38$21,023
May 20061922,63866.016.42$29,623
Apr 20062012,55164.397.36$31,719
Mar 20061902,53656.707.08$28,735
Feb 20061921,63557.597.75$23,730
Jan 20061982,33560.598.93$32,856
Dec 20051892,07554.9413.42$38,221
Nov 20051981,26354.6910.59$24,202
Oct 20051931,02458.3413.80$25,386
Sep 20051971,82361.4512.08$34,126
Aug 20051891,48661.519.80$26,183
Jul 200519093355.697.84$17,899
Jun 200518437652.337.38$12,404
May 200518424045.226.65$9,917
Apr 200518539549.207.36$12,009
Mar 20051862,57250.377.15$27,771
Feb 20053522,22845.226.31$29,980
Jan 200502,13343.166.32$13,485
Dec 20043772,10639.866.75$29,245
Nov 200401,96745.286.33$12,452
Oct 20043771,60149.706.52$29,168
Sep 200418380443.245.28$12,161
Aug 200418635242.375.55$9,835
Jul 20041921,52938.286.08$16,652
Jun 20041942,02736.106.43$20,043
May 20041911,87837.486.49$19,356
Apr 20041911,50034.475.86$15,371
Mar 20041701,11134.365.53$11,985
Feb 200437355332.455.51$15,151
Jan 200418930232.036.30$7,956
Dec 20031832,04730.266.30$18,437
Nov 20031941,99228.804.60$14,741
Oct 20031911,62228.174.76$13,101
Sep 20031861,00926.314.75$9,686
Aug 200319140629.765.13$7,767
Jul 200338869429.415.17$15,000
Jun 200319332628.565.98$7,463
May 20031791,64426.595.97$14,579
Apr 20033822,30226.675.41$22,636
Mar 20031952,54131.146.10$21,562
Feb 20033671,54933.487.93$24,564
Jan 200301,56930.315.58$8,758
Dec 20021971,05926.914.85$10,441
Nov 20021871,75424.664.14$11,868
Oct 20023801,06226.464.23$14,546
Sep 20021941,29127.443.64$10,016
Aug 20021932,51025.963.16$12,952
Jul 20021942,65224.583.06$12,888
Jun 20021912,83623.733.34$14,000
May 20021942,44324.663.58$13,540
Apr 20021972,74023.653.51$14,283
Mar 20023782,79522.003.10$16,988
Feb 20021912,26818.222.38$8,868
Jan 20021972,34617.172.38$8,956
Dec 20011942,65716.932.36$9,567
Nov 20011902,65918.072.41$9,830
Oct 20013792,75419.782.53$14,461
Sep 20012002,61524.262.25$10,739
Aug 20011922,46024.873.05$12,286
Jul 20013822,22723.933.20$16,261
Jun 20011901,91624.563.82$11,993
May 20013712,23725.524.31$19,103
Apr 20012011,78224.685.34$14,468
Mar 20011981,63324.545.38$13,639
Feb 200139978627.755.77$15,605
Jan 20011901,05327.478.40$14,063
Dec 20001892,47726.889.12$27,677
Nov 20001992,48532.215.66$20,470
Oct 20001892,50431.235.15$18,787
Sep 20003751,52131.875.19$19,840
Aug 20003732,45229.644.54$22,190
Jul 20001892,37128.534.09$15,089
Jun 20001882,11229.304.40$14,795
May 20005712,17227.263.68$23,558
Apr 200001,43324.513.12$4,465
Mar 20001902,03528.422.86$11,219
Feb 20003891,76127.622.73$15,546
Jan 20001851,84225.272.48$9,244
Dec 19993831,80824.282.42$13,681
Nov 19991941,56623.192.43$8,310
Oct 19993881,54020.982.80$12,458
Sep 19991961,00321.752.62$6,890
Aug 19993801,07119.262.88$10,399
Jul 199936781317.892.37$8,494
Jun 199919336615.942.36$3,941
May 199938432315.792.32$6,813
Apr 199956921115.102.21$9,058
Mar 199906412.471.84$118
Feb 19993911879.981.82$4,242
Jan 199919313110.381.90$2,252
Dec 19981822,5279.201.77$6,156
Nov 19983823,85610.892.19$12,588
Oct 19981933,83712.421.97$9,953
Sep 19983783,44012.592.08$11,923
Aug 19981913,26011.301.91$8,376
Jul 19983891,52911.742.24$7,988
Jun 19981893,20411.242.24$9,293
May 19985604,01712.622.21$15,930
Apr 19983863,67613.042.51$14,243
Mar 199802,34012.802.31$5,404
Feb 19985682,86513.952.30$14,511
Jan 19981822,21714.702.15$7,453
Dec 19971921,60816.322.41$7,010
Nov 19973721,60618.193.09$11,726
Oct 19973731,61419.253.15$12,264
Sep 19971882,01117.742.95$9,277
Aug 19973873,49017.862.55$15,828
Jul 19973783,47917.582.25$14,462
Jun 19971953,40717.242.26$11,052
May 19973652,05118.972.31$11,659
Apr 19971912,62617.882.08$8,884
Mar 19973832,16318.951.94$11,452
Feb 199757694920.492.21$13,896
Jan 199701,96123.483.54$6,941
Dec 19963733,47323.32$8,698
Nov 19963684,05621.97$8,085
Oct 19963784,07623.31$8,811
Sep 19961883,88622.22$4,177
Aug 19963563,53820.26$7,213
Jul 19963652,95319.55$7,136
Jun 199637349618.73$6,986
May 19963751,43619.43$7,286
Apr 19963881,18621.51$8,346
Mar 199638526819.38$7,461
Feb 19963962,02616.98$6,724
Jan 19961922,00917.07$3,277
Dec 19955771,40817.19$9,919
Nov 19953921,57316.00$6,272
Oct 19951813,14715.43$2,793
Sep 19953773,09516.18$6,100
Aug 19953612,90315.92$5,747
Jul 19955612,87515.24$8,550
Jun 19953661,89416.41$6,006
May 19951782,52317.56$3,126
Apr 19953452,59517.73$6,117
Mar 19955312,47316.44$8,730
Feb 19951702,39616.58$2,819
Jan 19955543,05115.92$8,820
Dec 19941902,66615.03$2,856
Nov 19945662,63915.90$8,999
Oct 19941892,60215.58$2,945
Sep 19945042,46115.29$7,706
Aug 19945712,44116.13$9,210
Jul 19943571,94917.56$6,269
Jun 19943591,87417.09$6,135
May 19945491,74315.88$8,718
Apr 19943491,25414.14$4,935
Mar 19943791,09812.46$4,722
Feb 19943751,56512.50$4,688
Jan 199455254512.66$6,988
Dec 199337844512.33$4,661
Nov 199356770114.49$8,216
Oct 199355947815.85$8,860
Sep 199337246615.03$5,591
Aug 199337225015.66$5,826
Jul 199356516515.46$8,735
Jun 19933576116.79$5,994
May 199319059317.68$3,359
Apr 199336763718.05$6,624
Mar 199355515718.14$10,068
Feb 19933545417.90$6,337
Jan 19931941,88716.93$3,284

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.

Apr 2026 — as filed, then multipliedworked
Oil                  173 bbl  × $ 98.93 =    $17,115
Casinghead gas       541 Mcf  × $  2.87 =     $1,553

────────────────────────────────────────────────────
Month total                                  $18,667

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/O/4539 is the state's own key, not one this site invented.