SIBLEY UNIT

Operated by XTO ENERGY INC. (P-5 945936) in the COYANOSA (ELLENBURGER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 37040District 08Field 21382500Hydrogen sulphide fieldGasSaveExport
Value, all time
$43.3 M
Jan 1993 – May 2026
Value, last 12 filed months
$737 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
1
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 21 leases and 21 wells, and the rule below applies to all of them.

Discovered
1963-01-06
as the register files it
Field class
Gas
the register's own label
Between wells
3,960 ft
minimum
From a lease line
1,320 ft
minimum

A drilling unit in this field needs at least 640 acres.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: AOF-1 AND AOF-2 EFFECTIVE 06/01/2014.

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
GasProduction12,358,277 Mcf$43,274,668
Total$43,274,668

2,145,454 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 (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 31.2085, -103.0619. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.20848, -103.06185 · 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
15,315 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 15,315 ft.

Completions filed
Jun 1993
1 of 1 wells

1 well

42-371104982 L15,315 ftJun 1993

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 20260106.413.05$0
Apr 2026098.932.87$0
Mar 20266,06489.753.15$19,098
Feb 202621,52763.503.75$80,733
Jan 202623,22759.138.00$185,768
Dec 202522,01156.664.41$97,142
Nov 202521,77258.593.93$85,486
Oct 20259,14359.383.30$30,216
Sep 202518,18862.743.08$55,963
Aug 202517,96563.933.01$54,160
Jul 202518,83666.743.32$62,445
Jun 202521,07866.483.13$65,947
May 202522,22360.553.23$71,832
Apr 202523,10062.363.54$81,846
Mar 202524,33167.704.27$103,852
Feb 202521,06070.884.34$91,418
Jan 202524,74374.324.28$105,867
Dec 202423,78668.993.12$74,245
Nov 20249,73369.052.20$21,397
Oct 202416,50871.372.28$37,661
Sep 202418,97969.612.36$44,873
Aug 202423,70275.632.06$48,912
Jul 202415,57379.932.15$33,429
Jun 202423,97478.082.63$63,147
May 202423,59278.812.20$51,866
Apr 202410,52084.451.66$17,455
Mar 202422,96780.301.55$35,487
Feb 202419,19476.091.78$34,235
Jan 202420,02073.023.30$66,019
Dec 202323,44671.262.61$61,211
Nov 202323,65477.892.81$66,410
Oct 202315,46985.443.09$47,757
Sep 202314,83589.042.74$40,574
Aug 202319,27280.522.67$51,512
Jul 202316,83074.852.64$44,461
Jun 202317,15368.962.26$38,740
May 202318,88070.622.23$42,053
Apr 202322,40378.122.24$50,133
Mar 202322,94572.852.39$54,911
Feb 202321,15575.112.47$52,161
Jan 202323,29076.533.39$78,900
Dec 202222,31176.415.73$127,822
Nov 202223,40085.005.65$132,121
Oct 202221,21387.185.86$124,388
Sep 202213,67584.888.16$111,638
Aug 202217,21394.529.13$157,106
Jul 202224,573101.587.54$185,332
Jun 202222,224115.097.98$177,285
May 202218,723109.378.43$157,892
Apr 202215,771104.226.84$107,836
Mar 202224,721108.885.08$125,494
Feb 202221,48291.054.86$104,378
Jan 202224,20281.844.54$109,821
Dec 202120,65271.323.90$80,525
Nov 202120,76677.435.24$108,748
Oct 202119,64679.795.71$112,255
Sep 202122,27769.865.35$119,202
Aug 202122,40566.024.22$94,562
Jul 202122,83870.783.98$90,943
Jun 202120,56769.493.38$69,529
May 202125,63763.483.02$77,364
Apr 202123,44060.362.76$64,657
Mar 202125,57861.302.72$69,494
Feb 202118,16457.805.55$100,773
Jan 202124,98950.412.81$70,226
Dec 202023,91844.642.68$63,992
Nov 202017,00338.772.71$46,020
Oct 202025,59336.972.48$63,430
Sep 202024,28137.091.99$48,344
Aug 202026,25239.982.39$62,614
Jul 202026,48138.371.83$48,331
Jun 202025,11434.901.69$42,450
May 202026,61616.921.81$48,301
Apr 202024,47214.751.80$44,157
Mar 202025,47930.341.86$47,295
Feb 202025,36649.881.98$50,242
Jan 202022,38757.252.09$46,895
Dec 201924,35259.012.30$56,116
Nov 201921,45255.302.75$59,008
Oct 201926,96653.472.42$65,218
Sep 201925,41355.052.66$67,529
Aug 201922,91653.112.30$52,807
Jul 201926,52056.272.46$65,241
Jun 201925,37152.782.49$63,204
May 201926,67658.482.74$73,101
Apr 201923,74862.632.75$65,324
Mar 201917,55256.803.06$53,746
Feb 201923,15250.852.79$64,645
Jan 201926,81346.033.23$86,557
Dec 201820,90646.594.19$87,501
Nov 201818,09952.934.24$76,690
Oct 201827,13261.443.40$92,197
Sep 201825,33459.543.11$78,738
Aug 201827,84759.403.07$85,395
Jul 201824,47665.142.93$71,761
Jun 201824,35360.183.08$74,932
May 201822,78865.382.90$66,103
Apr 201825,49763.842.90$73,962
Mar 2018061.222.79$0
Feb 201823,77061.782.77$65,751
Jan 201820,44262.874.01$81,959
Dec 201723,86557.272.92$69,722
Nov 201724,29155.423.12$75,748
Oct 201723,51849.292.98$70,170
Sep 201726,05047.523.09$80,424
Aug 201724,36345.373.00$73,196
Jul 201725,92043.873.09$80,022
Jun 201725,59642.493.09$79,022
May 201726,84745.373.26$87,613
Apr 201726,46747.933.21$85,001
Mar 201726,24646.772.98$78,310
Feb 201719,06050.452.95$56,277
Jan 201727,65249.413.42$94,537
Dec 201625,51848.763.72$94,999
Nov 201624,27042.492.64$64,178
Oct 201628,17846.193.09$87,077
Sep 201627,18641.553.10$84,294
Aug 201627,43041.442.92$80,215
Jul 201619,79541.622.92$57,887
Jun 201624,58845.352.69$66,039
May 201626,62742.521.99$53,015
Apr 201622,74636.561.99$45,288
Mar 201628,51433.011.79$51,154
Feb 201625,85626.472.06$53,357
Jan 201628,69527.352.36$67,845
Dec 201527,61432.362.00$55,267
Nov 201522,83638.792.17$49,493
Oct 201522,22943.552.43$53,940
Sep 201517,67942.992.76$48,766
Aug 201524,34740.162.87$69,937
Jul 201524,32648.152.95$71,642
Jun 201525,09956.152.88$72,357
May 201521,20955.212.96$62,682
Apr 201526,87449.822.71$72,736
Mar 201523,29942.892.93$68,376
Feb 201523,97644.662.98$71,357
Jan 201516,24843.433.10$50,379
Dec 201426,12054.693.59$93,806
Nov 201425,64170.464.25$109,021
Oct 201423,75078.303.90$92,648
Sep 201419,31386.164.05$78,130
Aug 201424,39989.394.04$98,453
Jul 201424,88896.564.18$104,022
Jun 201424,96698.164.74$118,261
May 201427,78994.734.73$131,346
Apr 201427,73895.944.81$133,395
Mar 201426,42995.895.06$133,646
Feb 201423,82597.406.19$147,524
Jan 201426,76590.404.86$130,097
Dec 201325,99891.824.35$113,208
Nov 201326,18388.853.74$97,879
Oct 201311,02697.423.78$41,671
Sep 201313,117104.113.72$48,766
Aug 201322,895104.253.52$80,650
Jul 201321,390102.523.72$79,522
Jun 201323,13594.403.93$90,999
May 201326,82494.834.15$111,295
Apr 201321,99993.964.28$94,213
Mar 201326,94793.623.91$105,440
Feb 201322,01091.233.42$75,272
Jan 201324,09591.603.42$82,403
Dec 201224,89786.773.42$85,152
Nov 201225,40886.953.62$92,103
Oct 201225,24189.383.40$85,811
Sep 201223,39894.672.92$68,285
Aug 201220,98892.662.91$61,036
Jul 201226,52685.133.02$80,130
Jun 201214,96379.822.52$37,692
May 201220,17091.612.49$50,189
Apr 201222,296101.652.00$44,521
Mar 201225,681105.052.22$57,065
Feb 201224,676101.102.57$63,423
Jan 201226,24498.092.73$71,753
Dec 201127,18096.873.24$88,056
Nov 201125,12195.723.31$83,183
Oct 201126,64584.983.65$97,215
Sep 201125,18583.623.99$100,382
Aug 201125,30483.404.15$104,994
Jul 201127,65494.144.52$124,920
Jun 201126,77392.904.64$124,224
May 201127,24598.134.40$120,009
Apr 201126,622105.964.33$115,361
Mar 201128,20196.364.06$114,421
Feb 201124,70285.644.18$103,254
Jan 201128,56786.504.59$131,088
Dec 201028,16385.734.35$122,446
Nov 201027,24080.843.80$103,385
Oct 201028,65678.103.51$100,551
Sep 201028,18772.633.98$112,169
Aug 201023,63073.684.42$104,429
Jul 201025,13272.554.74$119,037
Jun 201020,31770.364.91$99,765
May 201027,34471.124.24$115,808
Apr 201028,02681.694.12$115,543
Mar 201028,99478.394.39$127,245
Feb 201025,11573.585.44$136,685
Jan 201027,50974.365.96$164,066
Dec 200929,34771.445.48$160,932
Nov 200928,54074.593.75$107,068
Oct 200930,05972.544.11$123,550
Sep 200928,42665.543.06$87,119
Aug 200916,85267.423.22$54,238
Jul 200916,66061.133.46$57,719
Jun 200927,28366.163.90$106,267
May 200929,85454.743.93$117,199
Apr 200929,19246.773.59$104,726
Mar 200929,55342.144.06$119,956
Feb 200926,80132.814.63$124,169
Jan 200930,70935.865.37$164,938
Dec 200830,08937.105.98$179,846
Nov 200827,64255.496.86$189,634
Oct 200830,00875.246.92$207,715
Sep 200826,888101.767.88$211,799
Aug 200829,747114.228.48$252,344
Jul 200830,471131.0811.39$347,047
Jun 200825,490131.3313.03$332,202
May 200828,519123.1711.57$330,087
Apr 200819,817110.3110.45$207,184
Mar 200828,883101.909.66$279,127
Feb 200828,52592.538.77$250,181
Jan 200829,23890.388.21$239,919
Dec 200729,94288.337.30$218,636
Nov 200729,03291.677.29$211,693
Oct 200729,46382.856.92$203,942
Sep 200729,53875.846.24$184,440
Aug 200730,90469.066.39$197,413
Jul 200730,62270.906.39$195,612
Jun 20079,38162.007.55$70,812
May 200714,64458.747.85$114,901
Apr 200727,45859.617.81$214,315
Mar 200730,85756.927.30$225,317
Feb 200729,22955.108.22$240,145
Jan 200732,56250.306.73$219,040
Dec 200631,79956.656.92$219,999
Nov 200630,99854.207.62$236,127
Oct 200631,75754.906.01$190,980
Sep 200631,58760.085.04$159,110
Aug 200632,26568.717.34$236,823
Jul 200632,43869.376.34$205,746
Jun 200626,95766.286.38$172,090
May 200632,39466.016.42$208,131
Apr 200631,35464.397.36$230,780
Mar 200631,23956.707.08$221,263
Feb 200629,44657.597.75$228,239
Jan 200631,86360.598.93$284,642
Dec 200533,19254.9413.42$445,284
Nov 200532,67454.6910.59$345,965
Oct 200532,52258.3413.80$448,666
Sep 200529,24961.4512.08$353,299
Aug 200532,76261.519.80$320,964
Jul 200532,81455.697.84$257,381
Jun 200532,36852.337.38$238,910
May 200532,81845.226.65$218,278
Apr 200532,99149.207.36$242,830
Mar 200534,38750.377.15$246,035
Feb 200530,82345.226.31$194,552
Jan 200530,08043.166.32$190,172
Dec 200429,76439.866.75$200,939
Nov 200433,36745.286.33$211,227
Oct 200435,25549.706.52$229,690
Sep 200434,28243.245.28$181,143
Aug 200435,40942.375.55$196,543
Jul 200434,79738.286.08$211,711
Jun 200451,29636.106.43$329,988
May 200453,66937.486.49$348,558
Apr 200447,05234.475.86$275,652
Mar 200437,35134.365.53$206,556
Feb 200434,47832.455.51$189,961
Jan 200435,33332.036.30$222,585
Dec 200337,97630.266.30$239,311
Nov 200337,26028.804.60$171,216
Oct 200339,11028.174.76$186,150
Sep 200334,53726.314.75$164,029
Aug 200335,23029.765.13$180,720
Jul 200333,90029.415.17$175,291
Jun 200333,16428.565.98$198,419
May 200334,57526.595.97$206,505
Apr 200333,17826.675.41$179,403
Mar 200337,63131.146.10$229,400
Feb 200333,65733.487.93$266,761
Jan 200337,06830.315.58$206,915
Dec 200239,88326.914.85$193,583
Nov 200239,13124.664.14$161,883
Oct 200241,46426.464.23$175,356
Sep 200240,21627.443.64$146,193
Aug 200239,75725.963.16$125,798
Jul 200241,71924.583.06$127,734
Jun 200240,31823.733.34$134,591
May 200242,45424.663.58$152,155
Apr 200240,82423.653.51$143,387
Mar 200242,79822.003.10$132,790
Feb 200237,87218.222.38$89,972
Jan 200243,06217.172.38$102,302
Dec 200136,61116.932.36$86,563
Nov 200139,72518.072.41$95,559
Oct 200140,12019.782.53$101,459
Sep 200141,06524.262.25$92,450
Aug 200140,94524.873.05$125,012
Jul 200139,09223.933.20$124,980
Jun 200141,85624.563.82$160,064
May 200143,61525.524.31$187,864
Apr 200141,98424.685.34$223,998
Mar 200144,26224.545.38$237,972
Feb 200139,45427.755.77$227,534
Jan 200142,01427.478.40$352,866
Dec 200039,95326.889.12$364,471
Nov 200041,18132.215.66$233,002
Oct 200038,26931.235.15$196,913
Sep 200039,97231.875.19$207,315
Aug 200044,26829.644.54$201,010
Jul 200041,81028.534.09$170,992
Jun 200041,32329.304.40$181,708
May 200043,37427.263.68$159,605
Apr 200042,38424.513.12$132,069
Mar 200045,27928.422.86$129,487
Feb 200041,95127.622.73$114,379
Jan 200045,87925.272.48$113,803
Dec 199945,38124.282.42$109,991
Nov 199943,90723.192.43$106,869
Oct 199947,09520.982.80$132,041
Sep 199943,54021.752.62$114,025
Aug 199942,03719.262.88$120,882
Jul 199942,47517.892.37$100,766
Jun 199941,84215.942.36$98,835
May 199943,20415.792.32$100,277
Apr 199944,07015.102.21$97,309
Mar 199948,74612.471.84$89,611
Feb 199944,1879.981.82$80,323
Jan 199948,16210.381.90$91,505
Dec 199848,3479.201.77$85,735
Nov 199849,99410.892.19$109,273
Oct 199851,14612.421.97$100,717
Sep 199849,74612.592.08$103,602
Aug 199851,45711.301.91$98,147
Jul 199845,80111.742.24$102,469
Jun 199847,74411.242.24$106,816
May 199848,15012.622.21$106,235
Apr 199833,34813.042.51$83,548
Mar 199833,61012.802.31$77,620
Feb 199830,77613.952.30$70,758
Jan 199832,62014.702.15$70,289
Dec 199740,43516.322.41$97,493
Nov 199746,57818.193.09$143,845
Oct 199747,11019.253.15$148,388
Sep 199746,11317.742.95$136,258
Aug 199730,23017.862.55$77,230
Jul 199749,96217.582.25$112,262
Jun 199748,13817.242.26$108,657
May 199750,71118.972.31$117,066
Apr 199747,23817.882.08$98,386
Mar 199747,62718.951.94$92,355
Feb 199744,54020.492.21$98,251
Jan 199744,12323.483.54$156,182
Dec 199655,57023.32$0
Nov 199652,02321.97$0
Oct 199653,59023.31$0
Sep 199649,96622.22$0
Aug 199651,00520.26$0
Jul 199651,29319.55$0
Jun 199645,95718.73$0
May 199643,37419.43$0
Apr 199654,86921.51$0
Mar 199651,92319.38$0
Feb 19962,02816.98$0
Jan 199621,20217.07$0
Dec 199535,99217.19$0
Nov 199557,82316.00$0
Oct 199550,63515.43$0
Sep 199543,38816.18$0
Aug 199537,21115.92$0
Jul 199543,65715.24$0
Jun 199554,81316.41$0
May 199550,52917.56$0
Apr 199555,13317.73$0
Mar 199558,05416.44$0
Feb 199551,32416.58$0
Jan 199556,47015.92$0
Dec 199456,53815.03$0
Nov 199444,70115.90$0
Oct 199428,65615.58$0
Sep 199454,35015.29$0
Aug 199454,79816.13$0
Jul 199441,98217.56$0
Jun 199454,97517.09$0
May 199454,32115.88$0
Apr 199440,99014.14$0
Mar 199441,54012.46$0
Feb 199439,74612.50$0
Jan 199458,56112.66$0
Dec 199361,25412.33$0
Nov 199349,36214.49$0
Oct 199333,59715.85$0
Sep 199353,31215.03$0
Aug 199344,47515.66$0
Jul 19938,08115.46$0
Jun 19931,62216.79$0
May 199318,39617.68$0
Apr 199351,68818.05$0
Mar 199348,61318.14$0
Feb 199344,13717.90$0
Jan 199331,93016.93$0

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.

Mar 2026 — as filed, then multipliedworked
Gas                6,064 Mcf  × $  3.15 =    $19,098

────────────────────────────────────────────────────
Month total                                  $19,098

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/G/37040 is the state's own key, not one this site invented.