SERIO (GRAYBURG)UNIT

Operated by FASKEN OIL AND RANCH, LTD. (P-5 263696) in the SERIO (GRAYBURG) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 37270District 08Field 82275500OilCasinghead gasSave
Value, all time
$105.9 M
May 2004 – May 2026
Value, last 12 filed months
$2.4 M
at the published price for each month
Months reported
265
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition1,545,931 bbl$104,978,387
Casinghead gasProduction159,035 Mcf$891,188
Total$105,869,575

Wells on this lease (31)

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 32.1555, -102.3363. A lease has no coordinate of its own — that point is the mean of its wells, and they span 85.0 miles, so treat it as the lease's centre and not as its location.

31.59742, -102.68487 · 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
16.1%
5 of 31 wells
With a plug date
12.9%
4 of 31 wells
Median depth
4,919 ft
31 wells filed one
Completion to plug
20.2 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
516.1%
A plug date is filed
412.9%
BothOn the schedule and plugged. Neither fact cancels the other.
412.9%
NeitherNo plug date, and not on the schedule.
2683.9%

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

0k
2k
4k
6k
8k
10k
12k
15k
20k+

Total depth in feet, 31 of 31 wells. Median 4,919 ft, with the middle half between 4,886 and 4,963 ft; the shallowest is 4,836 ft and the deepest 11,012 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

70s
80s
90s
00s
10s
20s

Last completion by decade, 31 of 31 wells, Dec 1974 – Dec 2022. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Dec 1974 – Dec 2022
31 of 31 wells
Plug dates filed
Feb 2008 – Jun 2025
4 of 31 wells; 27 filed none

Last completion to plug: a median of 20.2 years across the 4 wells that filed both dates, with the middle half between 11.7 years and 26.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

31 wells

42-003311359A4,891 ftDec 2022Jun 2025Yes
42-00330669024,850 ftMar 2019
42-003392260104,960 ftNov 2018
42-00330771054,850 ftOct 2010
42-003316390144,900 ftJul 2010
42-0033921601024,885 ftOct 2006
42-0033179301094,875 ftSep 2004
42-0033896501124,970 ftSep 2004
42-0033921801014,919 ftSep 2004
42-0033921901044,925 ftSep 2004
42-0033922001054,930 ftSep 2004
42-0033922101064,945 ftSep 2004
42-0033922201114,945 ftSep 2004
42-0033922301074,978 ftSep 2004
42-0033922401084,968 ftSep 2004
42-0033922501104,965 ftSep 2004
42-00338328215,800 ftDec 1997
42-003383290165,850 ftDec 1997
42-0033074764,836 ftJun 1993Feb 2008Yes
42-0033077334,849 ftMay 1993
42-003367993A4,850 ftSep 1990May 2016Yes
42-37131772111,012 ftMay 1987Aug 2014Yes
42-0033531013A5,004 ftDec 1985Yes
42-00331786154,900 ftJan 1979
42-003315860134,900 ftFeb 1978
42-00331028124,900 ftSep 1976
42-00330934114,935 ftMay 1976
42-0033082894,908 ftFeb 1976
42-00330829084,950 ftFeb 1976
42-0033078944,887 ftJan 1976
42-0033057301R4,869 ftDec 1974

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 (265)

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

265 months

May 20262,855429106.413.05$305,107
Apr 20262,1428398.932.87$212,146
Mar 20262,33313589.753.15$209,812
Feb 20262,51639263.503.75$161,236
Jan 20262,05616359.138.00$122,875
Dec 20252,9227156.664.41$165,874
Nov 20253,30415958.593.93$194,206
Oct 20253,43033159.383.30$204,767
Sep 20253,64542262.743.08$229,986
Aug 20253,37841963.933.01$217,219
Jul 20253,07137166.743.32$206,188
Jun 20252,78138666.483.13$186,089
May 20253,02244260.553.23$184,411
Apr 20252,67334262.363.54$167,900
Mar 20251,75017767.704.27$119,230
Feb 20252,83342270.884.34$202,635
Jan 20252,46417574.324.28$183,873
Dec 20242,92743068.993.12$203,276
Nov 20242,45621469.052.20$170,057
Oct 20242,73615971.372.28$195,631
Sep 20242,38712969.612.36$166,464
Aug 20243,31715775.632.06$251,189
Jul 20242,64419579.932.15$211,754
Jun 20242,94120978.082.63$230,184
May 20242,53135278.812.20$200,242
Apr 20242,78032484.451.66$235,309
Mar 20242,95346680.301.55$237,846
Feb 20242,29433076.091.78$175,139
Jan 20243,20729873.023.30$235,158
Dec 20232,92330471.262.61$209,087
Nov 20232,56635077.892.81$200,848
Oct 20232,76432585.443.09$237,160
Sep 20232,89047689.042.74$258,627
Aug 20232,94043880.522.67$237,900
Jul 20233,47722174.852.64$260,837
Jun 20232,63024568.962.26$181,918
May 20232,46262170.622.23$175,250
Apr 20232,78838178.122.24$218,651
Mar 20233,39337372.852.39$248,073
Feb 20232,68722275.112.47$202,368
Jan 20232,86432376.533.39$220,276
Dec 20222,44228476.415.73$188,220
Nov 20222,70127685.005.65$231,143
Oct 20222,43739087.185.86$214,745
Sep 20222,72433884.888.16$233,972
Aug 20222,49635794.529.13$239,180
Jul 20222,916509101.587.54$300,046
Jun 20222,688301115.097.98$311,763
May 20222,700306109.378.43$297,880
Apr 20222,904300104.226.84$304,706
Mar 20223,343246108.885.08$365,235
Feb 20222,75723491.054.86$252,162
Jan 20223,05029581.844.54$250,951
Dec 20213,07433771.323.90$220,552
Nov 20212,93134877.435.24$228,770
Oct 20213,29342279.795.71$265,160
Sep 20212,89046169.865.35$204,362
Aug 20212,74835966.024.22$182,938
Jul 20213,40247670.783.98$242,689
Jun 20213,27941069.493.38$229,244
May 20213,24937063.483.02$207,363
Apr 20213,52211160.362.76$212,894
Mar 20213,43436561.302.72$211,496
Feb 20212,68619357.805.55$156,322
Jan 20213,37040950.412.81$171,031
Dec 20203,27134444.642.68$146,938
Nov 20203,36125338.772.71$130,991
Oct 20203,44238936.972.48$128,215
Sep 20203,56042937.091.99$132,895
Aug 20203,37824739.982.39$135,642
Jul 20203,51739838.371.83$135,674
Jun 20201,43024134.901.69$50,314
May 202088719616.921.81$15,364
Apr 20202,69233214.751.80$40,306
Mar 20203,34534030.341.86$102,118
Feb 20203,18030249.881.98$159,217
Jan 20203,45630357.252.09$198,491
Dec 20193,58032859.012.30$212,012
Nov 20193,35630655.302.75$186,429
Oct 20193,61427753.472.42$193,911
Sep 20192,77132155.052.66$153,397
Aug 20193,37523953.112.30$179,797
Jul 20193,95747456.272.46$223,826
Jun 20193,71747152.782.49$197,357
May 20193,46132358.482.74$203,284
Apr 20193,34727962.632.75$210,390
Mar 20193,39617856.803.06$193,438
Feb 20192,78625150.852.79$142,369
Jan 20193,60332246.033.23$166,886
Dec 20183,75328246.594.19$176,033
Nov 20183,51634752.934.24$187,572
Oct 20183,46637161.443.40$214,212
Sep 20183,31532059.543.11$198,370
Aug 20183,52349559.403.07$210,784
Jul 20184,33155965.142.93$283,760
Jun 20183,83152960.183.08$232,177
May 20183,93252865.382.90$258,606
Apr 20183,92237363.842.90$251,462
Mar 20184,58136761.222.79$281,472
Feb 20183,49741061.782.77$217,179
Jan 20183,96944862.874.01$251,327
Dec 20173,63339057.272.92$209,201
Nov 20173,98143755.423.12$221,990
Oct 20173,90750349.292.98$194,077
Sep 20173,80949747.523.09$182,538
Aug 20173,92545245.373.00$179,435
Jul 20174,12650343.873.09$182,561
Jun 20173,32743442.493.09$142,704
May 20174,07652145.373.26$186,628
Apr 20174,12047447.933.21$198,994
Mar 20174,37326646.772.98$205,319
Feb 20173,76538950.452.95$191,093
Jan 20174,19532149.413.42$208,372
Dec 20163,58535348.763.72$176,119
Nov 20164,14638642.492.64$177,184
Oct 20164,00141046.193.09$186,073
Sep 20163,78624041.553.10$158,052
Aug 20163,60840541.442.92$150,700
Jul 20164,02339841.622.92$168,601
Jun 20163,75146345.352.69$171,351
May 20164,01844742.521.99$171,735
Apr 20164,40235836.561.99$161,650
Mar 20164,49643333.011.79$149,190
Feb 20164,04238526.472.06$107,786
Jan 20164,26524627.352.36$117,229
Dec 20154,09535432.362.00$133,223
Nov 20153,69040638.792.17$144,015
Oct 20154,26744543.552.43$186,908
Sep 20153,62951742.992.76$157,437
Aug 20153,72845740.162.87$151,029
Jul 20153,35942348.152.95$162,982
Jun 20153,88643456.152.88$219,450
May 20153,72247055.212.96$206,881
Apr 20154,06447949.822.71$203,765
Mar 20154,24441842.892.93$183,252
Feb 20153,59824644.662.98$161,419
Jan 20153,48320143.433.10$151,890
Dec 20144,18226354.693.59$229,658
Nov 20144,01729170.464.25$284,275
Oct 20144,11035278.303.90$323,186
Sep 20143,85433686.164.05$333,420
Aug 20143,86133689.394.04$346,491
Jul 20144,61236796.564.18$446,869
Jun 20144,32131698.164.74$425,646
May 20144,34333994.734.73$413,015
Apr 20143,81532695.944.81$367,579
Mar 20144,98131995.895.06$479,241
Feb 20144,19034497.406.19$410,236
Jan 20144,75029790.404.86$430,844
Dec 20134,57727891.824.35$421,471
Nov 20134,60629888.853.74$410,357
Oct 20135,10636297.423.78$498,795
Sep 20135,121359104.113.72$534,482
Aug 20135,119341104.253.52$534,857
Jul 20135,679338102.523.72$583,468
Jun 20134,29228894.403.93$406,298
May 20135,40336094.834.15$513,860
Apr 20135,32028593.964.28$501,088
Mar 20134,27524293.623.91$401,172
Feb 20134,36925891.233.42$399,466
Jan 20134,66927491.603.42$428,617
Dec 20124,57943986.773.42$398,821
Nov 20124,92543786.953.62$429,813
Oct 20125,22145589.383.40$468,200
Sep 20124,91233794.672.92$466,003
Aug 20125,29337792.662.91$491,546
Jul 20125,53937985.133.02$472,680
Jun 20125,84336479.822.52$467,305
May 20125,58628191.612.49$512,433
Apr 20125,301317101.652.00$539,480
Mar 20125,730355105.052.22$602,725
Feb 20125,851298101.102.57$592,302
Jan 20126,13925398.092.73$602,866
Dec 20115,78834496.873.24$561,798
Nov 20116,14847295.723.31$590,049
Oct 20116,14140084.983.65$523,322
Sep 20116,22649783.623.99$522,599
Aug 20116,81566783.404.15$571,139
Jul 20116,55953994.144.52$619,899
Jun 20116,43465792.904.64$600,767
May 20116,20252998.134.40$610,932
Apr 20116,452362105.964.33$685,223
Mar 20116,92274996.364.06$670,043
Feb 20116,62641785.644.18$569,194
Jan 20117,20256586.504.59$625,566
Dec 20107,20295885.734.35$621,593
Nov 20106,93977680.843.80$563,894
Oct 20107,37464678.103.51$578,176
Sep 20106,69545572.633.98$488,069
Aug 20107,35769373.684.42$545,126
Jul 20107,21072172.554.74$526,501
Jun 20107,10164170.364.91$502,774
May 20107,63075871.124.24$545,856
Apr 20107,22636481.694.12$591,793
Mar 20107,93271078.394.39$624,905
Feb 20106,70249973.585.44$495,849
Jan 20107,87069474.365.96$589,352
Dec 20097,76751271.445.48$557,682
Nov 20097,69967874.593.75$576,812
Oct 20097,97978172.544.11$582,007
Sep 20097,93573565.543.06$522,312
Aug 20098,26879467.423.22$559,984
Jul 20098,36690361.133.46$514,542
Jun 20098,04497866.163.90$536,000
May 20098,3101,06054.743.93$459,051
Apr 20097,87584446.773.59$371,342
Mar 20098,84291242.144.06$376,304
Feb 20098,13983932.814.63$270,928
Jan 20099,4821,04735.865.37$345,648
Dec 20089,4171,09637.105.98$355,922
Nov 20089,50596455.496.86$534,046
Oct 20089,8541,16175.246.92$749,451
Sep 20089,6431,159101.767.88$990,401
Aug 20089,9281,295114.228.48$1,144,962
Jul 200810,0801,242131.0811.39$1,335,432
Jun 200810,2161,103131.3313.03$1,356,042
May 200810,6111,341123.1711.57$1,322,478
Apr 20089,8001,221110.3110.45$1,093,803
Mar 200811,2521,291101.909.66$1,159,055
Feb 200810,53576492.538.77$981,504
Jan 200810,7591,29790.388.21$983,041
Dec 200711,2521,25988.337.30$1,003,082
Nov 200711,3921,24891.677.29$1,053,405
Oct 200711,0851,30982.856.92$927,453
Sep 200711,4131,39175.846.24$874,248
Aug 200711,47987369.066.39$798,316
Jul 200711,1331,45670.906.39$798,631
Jun 200711,2021,45062.007.55$705,469
May 200711,6541,49558.747.85$696,286
Apr 200710,4411,12159.617.81$631,138
Mar 200711,3751,25156.927.30$656,600
Feb 200711,4781,28755.108.22$643,012
Jan 200712,6301,47050.306.73$645,177
Dec 200613,0751,43056.656.92$750,592
Nov 200612,37387254.207.62$677,259
Oct 200613,1281,46754.906.01$729,549
Sep 200613,2391,05960.085.04$800,734
Aug 200612,7001,59768.717.34$884,339
Jul 200612,4081,55569.376.34$870,606
Jun 200612,6551,43466.286.38$847,928
May 200613,4151,00266.016.42$891,962
Apr 200613,2761,51564.397.36$865,993
Mar 200613,7171,59556.707.08$789,051
Feb 200612,7711,44257.597.75$746,659
Jan 200613,4981,53560.598.93$831,556
Dec 200513,3841,48554.9413.42$755,239
Nov 200513,7691,49954.6910.59$768,899
Oct 200514,3771,54558.3413.80$860,069
Sep 200513,5081,63161.4512.08$849,767
Aug 200514,1641,72761.519.80$888,147
Jul 200513,9781,91555.697.84$793,455
Jun 200513,6731,80852.337.38$728,853
May 200513,8091,82745.226.65$636,595
Apr 200513,6151,63049.207.36$681,856
Mar 200514,0601,25850.377.15$717,203
Feb 200511,6721,09845.226.31$534,738
Jan 200513,9611,26043.166.32$610,523
Dec 200412,2321,15539.866.75$495,365
Nov 200411,7051,15645.286.33$537,320
Oct 200410,2991,16449.706.52$519,444
Sep 20049,1251,10043.245.28$400,377
Aug 200410,1911,57742.375.55$440,546
Jul 20049,4641,67338.286.08$372,461
Jun 20048,5761,42936.106.43$318,786
May 20049,0191,30337.486.49$346,495

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
Oil                2,855 bbl  × $106.41 =   $303,801
Casinghead gas       429 Mcf  × $  3.05 =     $1,307

────────────────────────────────────────────────────
Month total                                 $305,107

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/O/37270 is the state's own key, not one this site invented.