SIBLEY, EFFIE POTTS -C-

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 38235District 08Field 21382500Hydrogen sulphide fieldGasSaveExport
Value, all time
$51.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$472 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
GasProduction14,208,833 Mcf$51,551,933
Total$51,551,933

2,195,157 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 31.2116, -103.0715. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.21160, -103.07151 · 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
15,800 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 15,800 ft.

Completions filed
Jan 1966
1 of 1 wells

1 well

42-371106391 L15,800 ftJan 1966

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 20264,20689.753.15$13,247
Feb 202612,09763.503.75$45,368
Jan 202611,23659.138.00$89,865
Dec 202511,35056.664.41$50,092
Nov 202511,34258.593.93$44,534
Oct 20256,78659.383.30$22,427
Sep 202512,92862.743.08$39,778
Aug 202514,97663.933.01$45,149
Jul 202518,05566.743.32$59,856
Jun 202519,64566.483.13$61,464
May 202522,86360.553.23$73,901
Apr 202523,25762.363.54$82,402
Mar 202524,54967.704.27$104,783
Feb 202521,59970.884.34$93,758
Jan 202524,99874.324.28$106,958
Dec 202422,75768.993.12$71,033
Nov 202414,96069.052.20$32,889
Oct 202411,60571.372.28$26,476
Sep 202414,96869.612.36$35,390
Aug 202422,79175.632.06$47,032
Jul 202411,28779.932.15$24,229
Jun 202411,93978.082.63$31,447
May 202415,16078.812.20$33,328
Apr 202414,95784.451.66$24,817
Mar 202423,32280.301.55$36,036
Feb 202420,05876.091.78$35,776
Jan 202420,01973.023.30$66,016
Dec 202318,74571.262.61$48,938
Nov 202325,88877.892.81$72,682
Oct 202310,34285.443.09$31,929
Sep 20239,12989.042.74$24,968
Aug 20239,11980.522.67$24,374
Jul 202311,72374.852.64$30,970
Jun 202311,09468.962.26$25,056
May 202312,67170.622.23$28,223
Apr 202321,69978.122.24$48,557
Mar 202321,66272.852.39$51,841
Feb 202314,64575.112.47$36,110
Jan 202317,81076.533.39$60,335
Dec 202221,41476.415.73$122,683
Nov 202215,65185.005.65$88,369
Oct 202219,29987.185.86$113,165
Sep 202212,11284.888.16$98,878
Aug 202214,03694.529.13$128,109
Jul 202214,023101.587.54$105,763
Jun 202215,550115.097.98$124,045
May 202215,978109.378.43$134,743
Apr 202213,544104.226.84$92,608
Mar 202217,835108.885.08$90,538
Feb 202213,48291.054.86$65,507
Jan 202221,32381.844.54$96,757
Dec 202115,03371.323.90$58,615
Nov 202121,24477.435.24$111,252
Oct 202120,19879.795.71$115,409
Sep 202121,01269.865.35$112,434
Aug 202115,64066.024.22$66,010
Jul 202120,37870.783.98$81,147
Jun 202119,24469.493.38$65,057
May 202124,14163.483.02$72,850
Apr 202116,90660.362.76$46,634
Mar 202120,69861.302.72$56,235
Feb 202114,72057.805.55$81,666
Jan 202126,49950.412.81$74,469
Dec 202024,77244.642.68$66,277
Nov 202017,65038.772.71$47,771
Oct 202026,40136.972.48$65,433
Sep 202025,65337.091.99$51,076
Aug 202026,79639.982.39$63,911
Jul 202026,94138.371.83$49,171
Jun 202025,38634.901.69$42,910
May 202024,94216.921.81$45,263
Apr 202026,02514.751.80$46,959
Mar 202023,93230.341.86$44,423
Feb 202026,66149.881.98$52,807
Jan 202020,07357.252.09$42,048
Dec 201926,11859.012.30$60,185
Nov 201923,77055.302.75$65,384
Oct 201928,17353.472.42$68,138
Sep 201926,42955.052.66$70,229
Aug 201925,19753.112.30$58,063
Jul 201927,88856.272.46$68,606
Jun 201927,04152.782.49$67,365
May 201928,57158.482.74$78,294
Apr 201925,54162.632.75$70,256
Mar 201919,34556.803.06$59,236
Feb 201924,97350.852.79$69,730
Jan 201927,54146.033.23$88,907
Dec 201821,38646.594.19$89,510
Nov 201821,87952.934.24$92,707
Oct 201827,25161.443.40$92,601
Sep 201826,55559.543.11$82,533
Aug 201829,42859.403.07$90,243
Jul 201826,90565.142.93$78,882
Jun 201826,64160.183.08$81,972
May 201825,31265.382.90$73,425
Apr 201827,83663.842.90$80,747
Mar 201828,05161.222.79$78,174
Feb 201825,95061.782.77$71,781
Jan 201823,87162.874.01$95,706
Dec 201725,92757.272.92$75,746
Nov 201725,66755.423.12$80,039
Oct 201725,95849.292.98$77,450
Sep 201727,70847.523.09$85,542
Aug 201726,42245.373.00$79,382
Jul 201727,69743.873.09$85,508
Jun 201726,88642.493.09$83,005
May 201728,56145.373.26$93,206
Apr 201726,85247.933.21$86,238
Mar 201727,65446.772.98$82,511
Feb 201720,37650.452.95$60,162
Jan 201728,75049.413.42$98,291
Dec 201625,91648.763.72$96,481
Nov 201625,67742.492.64$67,899
Oct 201628,47146.193.09$87,983
Sep 201628,03541.553.10$86,926
Aug 201628,63941.442.92$83,750
Jul 201623,43041.622.92$68,517
Jun 201626,20445.352.69$70,379
May 201628,35442.521.99$56,454
Apr 201625,09236.561.99$49,959
Mar 201629,48033.011.79$52,887
Feb 201627,08526.472.06$55,893
Jan 201629,65327.352.36$70,110
Dec 201528,44332.362.00$56,926
Nov 201524,96738.792.17$54,112
Oct 201525,05743.552.43$60,803
Sep 201515,26242.992.76$42,099
Aug 201524,98140.162.87$71,758
Jul 201523,31748.152.95$68,670
Jun 201523,48656.152.88$67,707
May 201523,70955.212.96$70,071
Apr 201515,58349.822.71$42,176
Mar 201517,38442.892.93$51,017
Feb 201525,16944.662.98$74,908
Jan 201516,32943.433.10$50,630
Dec 201427,21654.693.59$97,742
Nov 201427,25370.464.25$115,875
Oct 201424,95478.303.90$97,345
Sep 201421,38686.164.05$86,516
Aug 201426,13689.394.04$105,462
Jul 201426,43596.564.18$110,488
Jun 201426,41398.164.74$125,115
May 201429,50994.734.73$139,476
Apr 201429,25695.944.81$140,696
Mar 201428,42995.895.06$143,760
Feb 201425,31497.406.19$156,744
Jan 201428,65290.404.86$139,269
Dec 201327,47191.824.35$119,622
Nov 201327,39488.853.74$102,406
Oct 201311,57597.423.78$43,746
Sep 201313,927104.113.72$51,777
Aug 201324,086104.253.52$84,846
Jul 201320,601102.523.72$76,589
Jun 201322,65894.403.93$89,123
May 201328,97194.834.15$120,203
Apr 201324,72793.964.28$105,896
Mar 201331,19593.623.91$122,062
Feb 201324,82591.233.42$84,899
Jan 201328,47591.603.42$97,382
Dec 201230,97186.773.42$105,926
Nov 201230,03886.953.62$108,887
Oct 201230,04589.383.40$102,143
Sep 201226,87494.672.92$78,429
Aug 201223,79892.662.91$69,208
Jul 201229,69685.133.02$89,706
Jun 201217,32279.822.52$43,635
May 201224,26091.612.49$60,367
Apr 201228,435101.652.00$56,779
Mar 201231,830105.052.22$70,729
Feb 201230,245101.102.57$77,737
Jan 201232,25198.092.73$88,177
Dec 201133,12296.873.24$107,307
Nov 201130,33495.723.31$100,444
Oct 201131,78284.983.65$115,958
Sep 201130,65983.623.99$122,201
Aug 201131,11983.404.15$129,123
Jul 201133,73194.144.52$152,371
Jun 201132,55592.904.64$151,051
May 201133,26898.134.40$146,540
Apr 201130,669105.964.33$132,897
Mar 201134,50096.364.06$139,978
Feb 201130,20285.644.18$126,244
Jan 201135,70086.504.59$163,819
Dec 201035,37385.734.35$153,793
Nov 201033,79580.843.80$128,263
Oct 201035,92778.103.51$126,064
Sep 201034,90672.633.98$138,907
Aug 201027,97773.684.42$123,640
Jul 201030,91772.554.74$146,438
Jun 201024,77770.364.91$121,665
May 201032,68571.124.24$138,428
Apr 201033,65181.694.12$138,733
Mar 201035,10678.394.39$154,069
Feb 201030,97073.585.44$168,550
Jan 201033,46974.365.96$199,612
Dec 200935,67571.445.48$195,633
Nov 200934,38874.593.75$129,007
Oct 200936,80772.544.11$151,286
Sep 200935,26465.543.06$108,075
Aug 200923,28767.423.22$74,949
Jul 200921,83061.133.46$75,630
Jun 200935,65966.163.90$138,892
May 200938,57954.743.93$151,452
Apr 200936,68046.773.59$131,590
Mar 200937,35342.144.06$151,616
Feb 200933,83032.814.63$156,734
Jan 200938,60535.865.37$207,347
Dec 200836,96337.105.98$220,933
Nov 200834,45355.496.86$236,360
Oct 200837,47675.246.92$259,408
Sep 200832,085101.767.88$252,736
Aug 200836,647114.228.48$310,877
Jul 200837,199131.0811.39$423,675
Jun 200831,542131.3313.03$411,075
May 200836,055123.1711.57$417,311
Apr 200827,914110.3110.45$291,837
Mar 200836,738101.909.66$355,039
Feb 200836,21792.538.77$317,644
Jan 200836,62690.388.21$300,543
Dec 200737,60788.337.30$274,605
Nov 200737,06891.677.29$270,289
Oct 200738,45482.856.92$266,178
Sep 200738,33175.846.24$239,345
Aug 200738,04369.066.39$243,016
Jul 200737,93670.906.39$242,333
Jun 200714,70062.007.55$110,962
May 200719,21458.747.85$150,758
Apr 200736,71359.617.81$286,552
Mar 200743,13656.927.30$314,978
Feb 200741,43155.108.22$340,397
Jan 200741,49250.306.73$279,110
Dec 200640,93856.656.92$283,227
Nov 200639,55154.207.62$301,279
Oct 200639,51054.906.01$237,605
Sep 200639,83860.085.04$200,672
Aug 200640,60368.717.34$298,023
Jul 200641,00169.376.34$260,060
Jun 200636,14466.286.38$230,739
May 200641,53866.016.42$266,882
Apr 200640,37964.397.36$297,209
Mar 200638,60756.707.08$273,450
Feb 200637,00257.597.75$286,807
Jan 200640,69360.598.93$363,524
Dec 200540,92454.9413.42$549,012
Nov 200540,48754.6910.59$428,693
Oct 200540,51858.3413.80$558,977
Sep 200536,61761.4512.08$442,297
Aug 200540,83861.519.80$400,083
Jul 200541,67755.697.84$326,899
Jun 200541,78352.337.38$308,402
May 200542,88145.226.65$285,208
Apr 200543,52249.207.36$320,343
Mar 200544,04450.377.15$315,130
Feb 200539,01245.226.31$246,241
Jan 200538,41343.166.32$242,855
Dec 200437,63439.866.75$254,070
Nov 200442,93645.286.33$271,803
Oct 200445,80749.706.52$298,437
Sep 200444,21843.245.28$233,643
Aug 200447,39342.375.55$263,062
Jul 200446,75338.286.08$284,454
Jun 200442,21636.106.43$271,576
May 200438,69537.486.49$251,308
Apr 200443,19134.475.86$253,033
Mar 200449,75434.365.53$275,147
Feb 200446,46732.455.51$256,016
Jan 200448,15832.036.30$303,378
Dec 200351,52830.266.30$324,711
Nov 200351,13428.804.60$234,969
Oct 200349,84328.174.76$237,235
Sep 200345,51426.314.75$216,162
Aug 200349,59529.765.13$254,408
Jul 200346,89829.415.17$242,502
Jun 200346,64428.565.98$279,069
May 200350,74926.595.97$303,108
Apr 200346,90226.675.41$253,612
Mar 200354,34731.146.10$331,301
Feb 200347,43533.487.93$375,964
Jan 200353,83130.315.58$300,487
Dec 200255,47926.914.85$269,282
Nov 200252,99124.664.14$219,222
Oct 200256,45626.464.23$238,759
Sep 200254,60927.443.64$198,515
Aug 200254,15925.963.16$171,368
Jul 200257,75524.583.06$176,832
Jun 200256,68323.733.34$189,221
May 200259,38424.663.58$212,832
Apr 200257,54123.653.51$202,102
Mar 200259,70622.003.10$185,251
Feb 200254,24418.222.38$128,866
Jan 200260,57717.172.38$143,912
Dec 200152,80316.932.36$124,847
Nov 200158,99918.072.41$141,923
Oct 200159,28019.782.53$149,912
Sep 200150,14724.262.25$112,897
Aug 200158,36324.873.05$178,192
Jul 200155,79323.933.20$178,375
Jun 200157,59424.563.82$220,249
May 200160,19825.524.31$259,292
Apr 200157,07524.685.34$304,513
Mar 200159,92424.545.38$322,178
Feb 200154,22127.755.77$312,697
Jan 200158,23227.478.40$489,077
Dec 200055,61426.889.12$507,339
Nov 200057,59332.215.66$325,861
Oct 200052,69131.235.15$271,122
Sep 200057,68131.875.19$299,163
Aug 200062,45629.644.54$283,597
Jul 200060,76928.534.09$248,530
Jun 200059,44329.304.40$261,386
May 200061,48827.263.68$226,260
Apr 200060,49224.513.12$188,493
Mar 200064,94628.422.86$185,729
Feb 200061,97127.622.73$168,964
Jan 200065,38025.272.48$162,175
Dec 199928,06424.282.42$68,019
Nov 199933,32823.192.43$81,120
Oct 199966,48120.982.80$186,393
Sep 199963,99421.752.62$167,591
Aug 199961,54919.262.88$176,990
Jul 199961,27517.892.37$145,367
Jun 199960,78815.942.36$143,587
May 199960,40415.792.32$140,199
Apr 199963,53515.102.21$140,288
Mar 199969,78012.471.84$128,279
Feb 199962,6259.981.82$113,839
Jan 199970,54010.381.90$134,022
Dec 199867,6569.201.77$119,976
Nov 199868,64410.892.19$150,037
Oct 199871,12712.421.97$140,064
Sep 199867,92812.592.08$141,468
Aug 199871,22311.301.91$135,847
Jul 199866,60811.742.24$149,020
Jun 199869,57111.242.24$155,649
May 199869,67512.622.21$153,727
Apr 199853,56213.042.51$134,190
Mar 199863,96412.802.31$147,721
Feb 199859,29113.952.30$136,318
Jan 199865,36314.702.15$140,844
Dec 199712,69116.322.41$30,599
Nov 199721,58318.193.09$66,654
Oct 199764,39019.253.15$202,817
Sep 199761,22017.742.95$180,898
Aug 199748,65617.862.55$124,303
Jul 199724,83817.582.25$55,810
Jun 1997017.242.26$0
May 199711,05518.972.31$25,520
Apr 199758,68617.882.08$122,230
Mar 199763,23618.951.94$122,623
Feb 199763,72620.492.21$140,573
Jan 199754,64523.483.54$193,427
Dec 199664,81523.32$0
Nov 199660,52021.97$0
Oct 199663,12823.31$0
Sep 199636,89422.22$0
Aug 199641,28120.26$0
Jul 199667,47419.55$0
Jun 199655,80118.73$0
May 199632,32019.43$0
Apr 199645,54621.51$0
Mar 199661,73119.38$0
Feb 199663,09616.98$0
Jan 199644,56517.07$0
Dec 199534,47717.19$0
Nov 199543,47916.00$0
Oct 199559,19015.43$0
Sep 199542,72116.18$0
Aug 199541,50015.92$0
Jul 199540,24515.24$0
Jun 199537,10016.41$0
May 199526,01917.56$0
Apr 199550,63117.73$0
Mar 199549,86316.44$0
Feb 199533,29516.58$0
Jan 199531,65715.92$0
Dec 199439,60815.03$0
Nov 199447,02015.90$0
Oct 199443,48315.58$0
Sep 199461,56015.29$0
Aug 199454,01716.13$0
Jul 199453,46917.56$0
Jun 199453,41117.09$0
May 199444,56215.88$0
Apr 199441,95314.14$0
Mar 199440,63912.46$0
Feb 199415,57212.50$0
Jan 199423,69612.66$0
Dec 199320,18012.33$0
Nov 199338,22414.49$0
Oct 199347,23115.85$0
Sep 199351,72315.03$0
Aug 199331,79115.66$0
Jul 199339,80915.46$0
Jun 199345,30216.79$0
May 199341,32117.68$0
Apr 199342,35418.05$0
Mar 199364,28218.14$0
Feb 199358,44017.90$0
Jan 199368,16216.93$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                4,206 Mcf  × $  3.15 =    $13,247

────────────────────────────────────────────────────
Month total                                  $13,247

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/38235 is the state's own key, not one this site invented.